- routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Table Analysis 02 May '03

02 May '03

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 02 May, 2003 Analysis Summary ---------------- BGP routing table entries examined: 125192 Prefixes after maximum aggregation: 78322 Unique aggregates announced to Internet: 59136 Total ASes present in the Internet Routing Table: 15117 Origin-only ASes present in the Internet Routing Table: 13122 Origin ASes announcing only one prefix: 5953 Transit ASes present in the Internet Routing Table: 1995 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 1 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 19 Number of addresses announced to Internet: 1228266752 Equivalent to 73 /8s, 53 /16s and 221 /24s Percentage of available address space announced: 33.1 Percentage of allocated address space announced: 59.2 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 54267 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21236 Total APNIC prefixes after maximum aggregation: 12342 Prefixes being announced from the APNIC address blocks: 19674 Unique aggregates announced from the APNIC address blocks: 11997 APNIC Region origin ASes present in the Internet Routing Table: 1790 APNIC Region origin ASes announcing only one prefix: 523 APNIC Region transit ASes present in the Internet Routing Table: 301 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 112666592 Equivalent to 6 /8s, 183 /16s and 39 /24s Percentage of available APNIC address space announced: 60.7 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 77078 Total ARIN prefixes after maximum aggregation: 47950 Prefixes being announced from the ARIN address blocks: 55091 Unique aggregates announced from the ARIN address blocks: 16452 ARIN Region origin ASes present in the Internet Routing Table: 8360 ARIN Region origin ASes announcing only one prefix: 2858 ARIN Region transit ASes present in the Internet Routing Table: 789 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 191327744 Equivalent to 11 /8s, 103 /16s and 110 /24s Percentage of available ARIN address space announced: 71.3 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 25600 - 26591, 26624 - 27647, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 21575 Total RIPE prefixes after maximum aggregation: 15802 Prefixes being announced from the RIPE address blocks: 18129 Unique aggregates announced from the RIPE address blocks: 12085 RIPE Region origin ASes present in the Internet Routing Table: 4558 RIPE Region origin ASes announcing only one prefix: 2482 RIPE Region transit ASes present in the Internet Routing Table: 805 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 129880704 Equivalent to 7 /8s, 189 /16s and 210 /24s Percentage of available RIPE address space announced: 70.4 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5302 Total LACNIC prefixes after maximum aggregation: 2228 Prefixes being announced from the LACNIC address blocks: 4747 Unique aggregates announced from the LACNIC address blocks: 2977 LACNIC Region origin ASes present in the Internet Routing Table: 334 LACNIC Region origin ASes announcing only one prefix: 90 LACNIC Region transit ASes present in the Internet Routing Table: 67 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 12494336 Equivalent to 0 /8s, 190 /16s and 166 /24s Percentage of available LACNIC address space announced: 37.2 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1100 1104 787 Telstra Pty Ltd 4755 415 136 74 Videsh Sanchar Nigam Ltd. Aut 703 394 383 307 UUNET 2907 387 1992 364 SINET Japan 17557 373 27 140 Pakistan Telecom 2764 320 341 288 connect.com.au pty ltd 4814 297 85 23 China Telecom (Group) 7474 272 291 208 Optus Communications Pty Ltd 17676 245 3782 22 XTAGE CORPORATION 3786 242 773 209 DACOM Corporation 4134 225 2022 115 Data Communications Bureau 9583 219 33 14 Satyam Infoway Ltd., 4766 217 2478 163 Korea Internet Exchange for " 9443 180 58 79 Primus Telecommunications 9800 179 259 57 CHINA UNICOM 9238 140 8 17 TATA ISP 4739 136 57 125 Commerical Internet eXchange 9498 130 9 18 BHARTI BT INTERNET LTD. 4716 126 729 120 TTnet 9768 126 384 64 Korea Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1568 8938 1106 UUNET Technologies, Inc. 7018 1336 7143 926 AT&T 4151 1003 691 60 USDA 1239 966 3114 684 Sprint 7132 961 6475 207 Southwestern Bell Internet Se 3908 916 1570 469 Supernet, Inc. 1 725 2733 460 GENUITY 189 706 341 289 Genuity 7843 684 345 184 Adelphia Corp. 4323 587 514 169 Time Warner Communications, I 18566 550 144 5 Covad Communications 852 548 1110 431 Telus Advanced Communications 2386 546 484 271 AT&T Data Communications Serv 705 529 280 234 UUNET Technologies, Inc. 3561 507 2340 329 Cable & Wireless USA 209 498 2105 296 Qwest 690 487 71 317 Merit Network 7066 484 204 258 Virginia Polytechnic Institut 6197 478 340 196 BellSouth Network Solutions, 20115 475 190 295 Charter Communications RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 771 2170 641 UUNET - Commercial IP service 3301 308 1173 298 TeliaNet Sweden 3215 304 852 174 France Telecom Transpac 3320 266 2004 227 Deutsche Telekom AG 680 231 2051 228 DFN-IP service G-WiN 1257 227 328 189 SWIPnet Swedish IP Network 5400 205 112 114 BT Ignite European Backbone 8220 199 364 188 COLT Internet - International 719 193 307 125 LANLINK autonomous system 5515 187 779 160 Sonera Solution Autonomous Sy 786 180 1874 180 The JANET IP Service 20858 165 17 3 This AS will be used to conne 8708 162 44 151 Romania Data Systems S.A. 3303 141 517 140 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 2856 123 1299 112 BTnet UK Regional network 3269 112 755 63 TELECOM ITALIA 3246 109 383 106 Song Networks 3352 108 750 31 Ibernet, Internet Access Netw 2874 99 84 37 Global One Services AB LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 289 98 105 ImpSat 7303 255 36 65 Telecom Argentina Stet-France 8151 220 335 122 UniNet S.A. de C.V. 11172 166 66 36 Servicios Alestra S.A de C.V 6503 141 206 101 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 10620 113 7 33 TVCABLE BOGOTA 11340 96 3 30 Red Universitaria Nacional 6147 91 62 20 Telefonica Del Peru 11992 89 8 37 Integrated Systems 13999 74 36 8 Mega Cable S.A. de C.V. 1916 73 306 43 Fundacao de Amparo a Pesquisa 6535 72 5 21 Chilesat Servicios Empresari 15311 72 28 36 Telefonica Empresas 8065 70 6 15 Empresas Publicas de Medellin 4270 67 18 9 Red de Interconexion Universi 11830 67 5 27 Instituto Costarricense de El 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 61 11 41 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4151 1003 943 USDA 7132 961 754 Southwestern Bell Internet Se 18566 550 545 Covad Communications 7843 684 500 Adelphia Corp. 3908 916 447 Supernet, Inc. 4323 587 418 Time Warner Communications, I 189 706 417 Genuity 7018 1336 410 AT&T 4755 415 341 Videsh Sanchar Nigam Ltd. Aut 1221 1100 313 Telstra Pty Ltd 705 529 295 UUNET Technologies, Inc. 6347 369 289 SAVVIS Communications Corpora 6198 458 283 BellSouth Network Solutions, 1239 966 282 Sprint 6197 478 282 BellSouth Network Solutions, 4355 381 281 EarthLink, Inc. 2386 546 275 AT&T Data Communications Serv 22927 288 275 TELEFONICA DE ARGENTINA 4814 297 274 China Telecom (Group) 1 725 265 GENUITY List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.16.52.0/24 1239 Sprint 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.254.0/24 705 UUNET Technologies, Inc. 192.172.0.0/19 568 DISO-UNRRA 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:17 /9:7 /10:8 /11:13 /12:51 /13:93 /14:253 /15:465 /16:7401 /17:1674 /18:2975 /19:8384 /20:8371 /21:5991 /22:8963 /23:10531 /24:69523 /25:157 /26:182 /27:47 /28:25 /29:13 /30:22 /31:0 /32:26 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 627 706 Genuity 3908 572 916 Supernet, Inc. 18566 544 550 Covad Communications 702 480 771 UUNET - Commercial IP service 7018 466 1336 AT&T 7843 452 684 Adelphia Corp. 690 436 487 Merit Network 701 434 1568 UUNET Technologies, Inc. 7066 383 484 Virginia Polytechnic Institut 1239 363 966 Sprint 6198 360 458 BellSouth Network Solutions, 6197 356 478 BellSouth Network Solutions, 20115 340 475 Charter Communications 2386 327 546 AT&T Data Communications Serv 4814 284 297 China Telecom (Group) 27364 263 270 Armstrong Cable Services 1 249 725 GENUITY 3215 227 304 France Telecom Transpac 22927 226 288 TELEFONICA DE ARGENTINA 705 219 529 UUNET Technologies, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 12:692 13:1 15:4 17:3 20:8 24:815 25:1 32:87 38:121 40:19 44:2 55:1 57:15 61:440 62:539 63:1888 64:1568 65:1928 66:2401 67:163 68:372 69:121 80:358 81:154 128:151 129:178 130:44 131:81 132:11 133:2 134:152 135:4 136:113 137:106 138:109 139:67 140:151 141:110 142:97 143:43 144:104 145:17 146:268 147:94 148:282 149:73 150:44 151:78 152:244 153:55 154:2 155:111 156:46 157:42 158:125 159:148 160:36 161:74 162:144 163:75 164:307 165:143 166:94 167:332 168:397 169:57 170:308 171:7 192:5340 193:2422 194:1984 195:1012 196:462 198:3557 199:3677 200:2955 202:3795 203:5190 204:3037 205:2029 206:2374 207:2408 208:2617 209:2859 210:776 211:319 212:970 213:812 214:20 215:21 216:3221 217:634 218:90 219:21 220:94 End of report

1 0

Announcement RIPE NCC RR Training Course
by RIPE NCC Training 01 May '03

01 May '03

------- Dear Colleagues, [apologies for duplicate postings] As a service to its members the RIPE NCC offers the "Routing Registry Training Course". The main objective of the "Routing Registry Training Course" is to familiarise the LIRs with the features of the Routing Registry, while introducing the relevant tools and services of the RIPE NCC. The course also offers practical exercises. OVERVIEW OF TOPICS COVERED IN THE COURSE: - Routing Registry as a part of the RIPE Whois Database and the Internet Routing Registry (IRR) - Specifying routing policies using (RPSL) Routing Policy Specification Language and the RtConfig tool - IRRToolSet - Routing Information Service (RIS) - Routing Registry Consistency Check Project Please note that this is an advanced course. It will: - NOT teach the basics of routing - NOT describe how to receive Internet resources from the RIPE NCC not describe to operate a Local Internet Registry (LIR) The target audience of the course are technical staff of LIRs: e.g. network operators, engineers etc. This course is not intended for administrative or management staff (e.g. Hostmasters) . It is assumed that all attendees will be familiar with Border Gateway Protocol routing and with the RIPE Database (i.e. creating/modifying objects). This course is based on interactive exercises in a local network set-up. Please bring your laptops equipped with the following: - A working Ethernet card, - Three meters of Ethernet cable, - A secure connection client, - A web browser. Please be prepared to share your laptop (or at least allow another attendee to "look over your shoulder") if necessary. The Routing Registry Training Course is conducted in the English language and is free of charge, since it is covered by the membership fee. More information about the Routing Registry Training Course can be found at: http://www.ripe.net/training/rr/ REGISTRATION: You can register for a Routing Registry Training Course at the following URL: http://www.ripe.net/cgi-bin/trainingform.pl.cgi Or by completing the registration form at the end of this e-mail and replying to <training(a)ripe.net> . In order to register for a Routing Registry Training Course you must be an employee of an LIR and either: - be an LIR contact - be confirmed by an LIR contact LIR contacts are those employees of an LIR who are registered with RIPE NCC as authoritative contact persons. It is expected that most of those interested in the Routing Registry Training Course will not be an authoritative contact person for their LIR, and therefore will be, refused by the course registration "robot". In order to be admitted to the course, a confirmation e-mail must be sent to <training(a)ripe.net>. Please approach the LIR contacts from your organisation personally, since the identity of LIR contacts is confidential, and the RIPE NCC is unable to divulge contact persons for any given LIR. Kind Regards, The RIPE NCC Training Team ******************************************************************************** COURSE DATES AND VENUES ======================= Date: Friday 11 July 2003 Time: 0900 - 1700 Location: Vienna, Austria AND: Date: Friday 29 August 2003 Time: 0900 - 1700 Location: Helsinki, Finland AND Date: Monday 8 September 2003 Time: 0900 - 1700 Location: Amsterdam, The Netherlands *********************************************************************************** REGISTRATION FORM ================= %START PART 1 - Registration 1) Your name Enter First name, Last name in full e.g. John Doe Mary-Beth Walton # NAME [ ] 2) Your Registry ID (format: country-code.<name of registry>) # REG [ ] 3) Your e-mail address # EMAIL [ ] 4) Your NIC handle (optional) # NICHANDLE [ ] 5) The course you plan to attend (date and location) # COURSE [ ] %END

1 0

Weekly Routing Table Report
by Routing Table Analysis 25 Apr '03

25 Apr '03

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 25 Apr, 2003 Analysis Summary ---------------- BGP routing table entries examined: 125034 Prefixes after maximum aggregation: 78339 Unique aggregates announced to Internet: 59209 Total ASes present in the Internet Routing Table: 15085 Origin-only ASes present in the Internet Routing Table: 13083 Origin ASes announcing only one prefix: 5929 Transit ASes present in the Internet Routing Table: 2002 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 4 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 20 Number of addresses announced to Internet: 1225460768 Equivalent to 73 /8s, 11 /16s and 12 /24s Percentage of available address space announced: 33.1 Percentage of allocated address space announced: 59.1 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 54233 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21127 Total APNIC prefixes after maximum aggregation: 12280 Prefixes being announced from the APNIC address blocks: 19587 Unique aggregates announced from the APNIC address blocks: 11959 APNIC Region origin ASes present in the Internet Routing Table: 1785 APNIC Region origin ASes announcing only one prefix: 522 APNIC Region transit ASes present in the Internet Routing Table: 298 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 110650848 Equivalent to 6 /8s, 152 /16s and 101 /24s Percentage of available APNIC address space announced: 59.6 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 77124 Total ARIN prefixes after maximum aggregation: 48056 Prefixes being announced from the ARIN address blocks: 55210 Unique aggregates announced from the ARIN address blocks: 16616 ARIN Region origin ASes present in the Internet Routing Table: 8361 ARIN Region origin ASes announcing only one prefix: 2857 ARIN Region transit ASes present in the Internet Routing Table: 799 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 191099136 Equivalent to 11 /8s, 99 /16s and 241 /24s Percentage of available ARIN address space announced: 71.2 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 25600 - 26591, 26624 - 27647, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 21450 Total RIPE prefixes after maximum aggregation: 15776 Prefixes being announced from the RIPE address blocks: 18002 Unique aggregates announced from the RIPE address blocks: 12057 RIPE Region origin ASes present in the Internet Routing Table: 4533 RIPE Region origin ASes announcing only one prefix: 2462 RIPE Region transit ASes present in the Internet Routing Table: 807 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 129303424 Equivalent to 7 /8s, 181 /16s and 3 /24s Percentage of available RIPE address space announced: 70.1 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5329 Total LACNIC prefixes after maximum aggregation: 2227 Prefixes being announced from the LACNIC address blocks: 4745 Unique aggregates announced from the LACNIC address blocks: 2931 LACNIC Region origin ASes present in the Internet Routing Table: 334 LACNIC Region origin ASes announcing only one prefix: 88 LACNIC Region transit ASes present in the Internet Routing Table: 67 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 12482048 Equivalent to 0 /8s, 190 /16s and 118 /24s Percentage of available LACNIC address space announced: 37.2 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1101 1104 789 Telstra Pty Ltd 4755 415 136 75 Videsh Sanchar Nigam Ltd. Aut 703 398 383 312 UUNET 2907 385 1976 362 SINET Japan 17557 376 28 138 Pakistan Telecom 2764 322 341 290 connect.com.au pty ltd 4814 287 85 22 China Telecom (Group) 7474 270 276 206 Optus Communications Pty Ltd 17676 244 3766 22 XTAGE CORPORATION 3786 242 773 209 DACOM Corporation 4134 224 2014 114 Data Communications Bureau 9583 220 33 14 Satyam Infoway Ltd., 4766 214 2078 160 Korea Internet Exchange for " 9443 179 58 78 Primus Telecommunications 9800 177 250 55 CHINA UNICOM 9238 140 8 17 TATA ISP 4739 130 57 119 Commerical Internet eXchange 9498 129 9 12 BHARTI BT INTERNET LTD. 9768 127 384 64 Korea Telecom 4716 126 729 120 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1577 8923 1112 UUNET Technologies, Inc. 7018 1349 7164 937 AT&T 7132 959 6476 209 Southwestern Bell Internet Se 1239 958 3095 676 Sprint 3908 919 1570 470 Supernet, Inc. 4151 908 691 60 USDA 1 732 2749 465 GENUITY 7843 729 408 182 Adelphia Corp. 189 704 341 289 Genuity 4323 576 514 169 Time Warner Communications, I 852 547 1110 430 Telus Advanced Communications 18566 546 144 5 Covad Communications 705 529 278 234 UUNET Technologies, Inc. 2386 514 482 276 AT&T Data Communications Serv 3561 513 2357 335 Cable & Wireless USA 690 494 72 312 Merit Network 209 492 2120 293 Qwest 7066 481 204 257 Virginia Polytechnic Institut 6197 480 340 196 BellSouth Network Solutions, 20115 475 189 295 Charter Communications RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 774 2186 644 UUNET - Commercial IP service 3301 309 1173 299 TeliaNet Sweden 3215 303 851 175 France Telecom Transpac 3320 265 2004 225 Deutsche Telekom AG 680 231 2051 228 DFN-IP service G-WiN 1257 227 327 189 SWIPnet Swedish IP Network 5400 204 112 114 BT Ignite European Backbone 8220 200 365 189 COLT Internet - International 719 197 307 125 LANLINK autonomous system 5515 196 779 168 Sonera Solution Autonomous Sy 786 180 1874 180 The JANET IP Service 20858 164 17 3 This AS will be used to conne 8708 155 44 151 Romania Data Systems S.A. 3303 141 517 140 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 2856 120 1298 110 BTnet UK Regional network 3269 112 755 63 TELECOM ITALIA 3246 109 383 106 Song Networks 3352 108 750 31 Ibernet, Internet Access Netw 2874 96 85 39 Global One Services AB LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 294 99 105 ImpSat 7303 253 36 66 Telecom Argentina Stet-France 8151 216 334 118 UniNet S.A. de C.V. 11172 163 66 33 Servicios Alestra S.A de C.V 6503 154 207 108 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 10620 113 7 33 TVCABLE BOGOTA 6147 91 62 20 Telefonica Del Peru 11992 89 8 37 Integrated Systems 11340 82 2 26 Red Universitaria Nacional 1916 75 306 45 Fundacao de Amparo a Pesquisa 8065 75 6 15 Empresas Publicas de Medellin 13999 74 36 8 Mega Cable S.A. de C.V. 6535 73 5 22 Chilesat Servicios Empresari 15311 72 28 36 Telefonica Empresas 11830 66 4 26 Instituto Costarricense de El 4270 65 18 10 Red de Interconexion Universi 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 61 11 41 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4151 908 848 USDA 7132 959 750 Southwestern Bell Internet Se 7843 729 547 Adelphia Corp. 18566 546 541 Covad Communications 3908 919 449 Supernet, Inc. 189 704 415 Genuity 7018 1349 412 AT&T 4323 576 407 Time Warner Communications, I 4755 415 340 Videsh Sanchar Nigam Ltd. Aut 1221 1101 312 Telstra Pty Ltd 705 529 295 UUNET Technologies, Inc. 6347 371 292 SAVVIS Communications Corpora 6197 480 284 BellSouth Network Solutions, 22927 297 284 TELEFONICA DE ARGENTINA 6198 458 283 BellSouth Network Solutions, 1239 958 282 Sprint 4355 388 279 EarthLink, Inc. 1 732 267 GENUITY 4814 287 265 China Telecom (Group) 27364 270 252 Armstrong Cable Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 64515 PRIVATE 202.174.42.0/24 17909 AirNet Commercial Au 64514 PRIVATE 203.28.47.0/24 17909 AirNet Commercial Au 64512 PRIVATE 203.34.180.0/24 17909 AirNet Commercial Au Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.16.52.0/24 1239 Sprint 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.254.0/24 705 UUNET Technologies, Inc. 192.172.0.0/19 568 DISO-UNRRA 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:7 /10:8 /11:13 /12:50 /13:93 /14:251 /15:463 /16:7386 /17:1666 /18:2964 /19:8371 /20:8343 /21:6028 /22:8943 /23:10537 /24:69430 /25:137 /26:186 /27:53 /28:25 /29:13 /30:24 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 625 704 Genuity 3908 575 919 Supernet, Inc. 18566 540 546 Covad Communications 702 481 774 UUNET - Commercial IP service 7018 477 1349 AT&T 7843 471 729 Adelphia Corp. 690 443 494 Merit Network 701 429 1577 UUNET Technologies, Inc. 7066 380 481 Virginia Polytechnic Institut 6198 361 458 BellSouth Network Solutions, 6197 358 480 BellSouth Network Solutions, 1239 356 958 Sprint 20115 341 475 Charter Communications 11305 311 334 Interland Incorporated 2386 308 514 AT&T Data Communications Serv 4814 274 287 China Telecom (Group) 27364 263 270 Armstrong Cable Services 1 257 732 GENUITY 22927 235 297 TELEFONICA DE ARGENTINA 3215 226 303 France Telecom Transpac Number of /24s announced per /8 block (Global) ---------------------------------------------- 12:687 13:1 15:4 17:3 20:8 24:825 25:1 32:85 38:61 40:18 44:2 55:1 57:16 61:429 62:535 63:1902 64:1558 65:1932 66:2390 67:168 68:358 69:114 80:341 81:129 128:157 129:178 130:45 131:82 132:11 133:2 134:155 135:4 136:113 137:109 138:109 139:66 140:147 141:105 142:95 143:44 144:102 145:15 146:270 147:94 148:278 149:72 150:43 151:68 152:246 153:57 154:2 155:108 156:46 157:40 158:124 159:144 160:37 161:74 162:142 163:78 164:306 165:140 166:84 167:331 168:407 169:57 170:317 171:7 192:5349 193:2412 194:1991 195:1004 196:464 198:3564 199:3587 200:2952 202:3775 203:5186 204:3071 205:2005 206:2424 207:2400 208:2648 209:2843 210:775 211:311 212:963 213:797 214:21 215:21 216:3363 217:622 218:90 219:21 220:92 End of report

1 0

Weekly Routing Table Report
by Routing Table Analysis 18 Apr '03

18 Apr '03

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 18 Apr, 2003 Analysis Summary ---------------- BGP routing table entries examined: 124146 Prefixes after maximum aggregation: 78054 Unique aggregates announced to Internet: 58833 Total ASes present in the Internet Routing Table: 15026 Origin-only ASes present in the Internet Routing Table: 13037 Origin ASes announcing only one prefix: 5919 Transit ASes present in the Internet Routing Table: 1989 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 20 Number of addresses announced to Internet: 1224195200 Equivalent to 72 /8s, 247 /16s and 188 /24s Percentage of available address space announced: 33.0 Percentage of allocated address space announced: 59.0 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 53849 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 20795 Total APNIC prefixes after maximum aggregation: 12228 Prefixes being announced from the APNIC address blocks: 19236 Unique aggregates announced from the APNIC address blocks: 11885 APNIC Region origin ASes present in the Internet Routing Table: 1769 APNIC Region origin ASes announcing only one prefix: 517 APNIC Region transit ASes present in the Internet Routing Table: 292 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 110371808 Equivalent to 6 /8s, 148 /16s and 35 /24s Percentage of available APNIC address space announced: 59.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 76681 Total ARIN prefixes after maximum aggregation: 47860 Prefixes being announced from the ARIN address blocks: 54889 Unique aggregates announced from the ARIN address blocks: 16322 ARIN Region origin ASes present in the Internet Routing Table: 8328 ARIN Region origin ASes announcing only one prefix: 2848 ARIN Region transit ASes present in the Internet Routing Table: 788 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 190613760 Equivalent to 11 /8s, 92 /16s and 137 /24s Percentage of available ARIN address space announced: 71.0 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 25600 - 26591, 26624 - 27647, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 21379 Total RIPE prefixes after maximum aggregation: 15741 Prefixes being announced from the RIPE address blocks: 17931 Unique aggregates announced from the RIPE address blocks: 12023 RIPE Region origin ASes present in the Internet Routing Table: 4523 RIPE Region origin ASes announcing only one prefix: 2465 RIPE Region transit ASes present in the Internet Routing Table: 810 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 129020288 Equivalent to 7 /8s, 176 /16s and 177 /24s Percentage of available RIPE address space announced: 69.9 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5289 Total LACNIC prefixes after maximum aggregation: 2225 Prefixes being announced from the LACNIC address blocks: 4708 Unique aggregates announced from the LACNIC address blocks: 2975 LACNIC Region origin ASes present in the Internet Routing Table: 334 LACNIC Region origin ASes announcing only one prefix: 89 LACNIC Region transit ASes present in the Internet Routing Table: 68 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 12435200 Equivalent to 0 /8s, 189 /16s and 191 /24s Percentage of available LACNIC address space announced: 37.1 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1101 1104 793 Telstra Pty Ltd 703 396 381 310 UUNET 2907 379 1974 358 SINET Japan 17557 372 27 138 Pakistan Telecom 2764 322 341 290 connect.com.au pty ltd 4814 273 79 15 China Telecom (Group) 7474 272 276 208 Optus Communications Pty Ltd 3786 243 773 210 DACOM Corporation 17676 243 3750 22 XTAGE CORPORATION 4755 234 136 77 Videsh Sanchar Nigam Ltd. Aut 4134 225 2006 114 Data Communications Bureau 9583 220 33 14 Satyam Infoway Ltd., 4766 212 2078 157 Korea Internet Exchange for " 9443 180 58 79 Primus Telecommunications 9800 175 244 53 CHINA UNICOM 9238 139 8 17 TATA ISP 4739 130 57 119 Commerical Internet eXchange 4716 128 731 122 TTnet 9498 126 9 10 BHARTI BT INTERNET LTD. 9768 126 384 64 Korea Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1580 8906 1103 UUNET Technologies, Inc. 7018 1366 7175 947 AT&T 1239 969 3120 684 Sprint 7132 957 6444 209 Southwestern Bell Internet Se 3908 937 1571 477 Supernet, Inc. 4151 769 690 61 USDA 1 754 2770 481 GENUITY 189 705 341 290 Genuity 7843 684 402 178 Adelphia Corp. 4323 573 514 166 Time Warner Communications, I 852 549 1110 430 Telus Advanced Communications 18566 540 128 6 Covad Communications 705 529 278 234 UUNET Technologies, Inc. 2386 511 483 268 AT&T Data Communications Serv 3561 509 2341 333 Cable & Wireless USA 209 498 2137 301 Qwest 690 494 72 312 Merit Network 7066 485 204 255 Virginia Polytechnic Institut 6197 480 339 195 BellSouth Network Solutions, 6198 457 226 175 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 773 2186 643 UUNET - Commercial IP service 3215 312 851 175 France Telecom Transpac 3301 305 1172 295 TeliaNet Sweden 3320 264 2004 225 Deutsche Telekom AG 680 231 2051 228 DFN-IP service G-WiN 1257 216 327 190 SWIPnet Swedish IP Network 5400 199 97 110 BT Ignite European Backbone 8220 199 364 188 COLT Internet - International 719 197 307 125 LANLINK autonomous system 5515 196 779 168 Sonera Solution Autonomous Sy 786 180 1874 180 The JANET IP Service 20858 164 17 3 This AS will be used to conne 8708 157 44 152 Romania Data Systems S.A. 3303 142 517 141 Swisscom Ltd 12302 126 18 33 MobiFon S.A. 2856 120 1298 110 BTnet UK Regional network 3269 112 755 63 TELECOM ITALIA 3246 109 383 106 Song Networks 3352 106 734 32 Ibernet, Internet Access Netw 3233 105 11 12 RNC - Romanian Natioanal R&D LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 294 99 105 ImpSat 7303 247 36 65 Telecom Argentina Stet-France 8151 216 334 118 UniNet S.A. de C.V. 11172 162 66 33 Servicios Alestra S.A de C.V 6503 154 207 108 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 10620 113 7 33 TVCABLE BOGOTA 11340 106 3 34 Red Universitaria Nacional 6147 90 62 20 Telefonica Del Peru 11992 89 8 37 Integrated Systems 8065 76 6 15 Empresas Publicas de Medellin 1916 75 306 45 Fundacao de Amparo a Pesquisa 6535 74 5 19 Chilesat Servicios Empresari 13999 74 36 8 Mega Cable S.A. de C.V. 15311 72 28 36 Telefonica Empresas 4270 68 18 10 Red de Interconexion Universi 11830 66 4 26 Instituto Costarricense de El 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 63 11 42 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7132 957 748 Southwestern Bell Internet Se 4151 769 708 USDA 18566 540 534 Covad Communications 7843 684 506 Adelphia Corp. 3908 937 460 Supernet, Inc. 7018 1366 419 AT&T 189 705 415 Genuity 4323 573 407 Time Warner Communications, I 1221 1101 308 Telstra Pty Ltd 705 529 295 UUNET Technologies, Inc. 6347 365 286 SAVVIS Communications Corpora 1239 969 285 Sprint 6197 480 285 BellSouth Network Solutions, 6198 457 282 BellSouth Network Solutions, 22927 296 282 TELEFONICA DE ARGENTINA 4355 384 275 EarthLink, Inc. 1 754 273 GENUITY 4814 273 258 China Telecom (Group) 27364 270 252 Armstrong Cable Services 2386 511 243 AT&T Data Communications Serv List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.16.52.0/24 1239 Sprint 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.254.0/24 705 UUNET Technologies, Inc. 192.172.0.0/19 568 DISO-UNRRA 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:4 /10:8 /11:13 /12:50 /13:93 /14:251 /15:465 /16:7382 /17:1646 /18:2956 /19:8335 /20:8266 /21:5951 /22:8859 /23:10554 /24:68796 /25:164 /26:193 /27:52 /28:25 /29:13 /30:24 /31:0 /32:28 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 626 705 Genuity 3908 593 937 Supernet, Inc. 18566 534 540 Covad Communications 702 480 773 UUNET - Commercial IP service 7018 478 1366 AT&T 690 443 494 Merit Network 701 439 1580 UUNET Technologies, Inc. 7843 429 684 Adelphia Corp. 7066 384 485 Virginia Polytechnic Institut 1239 364 969 Sprint 6198 360 457 BellSouth Network Solutions, 6197 358 480 BellSouth Network Solutions, 11305 318 341 Interland Incorporated 2386 308 511 AT&T Data Communications Serv 20115 295 426 Charter Communications 1 266 754 GENUITY 4814 263 273 China Telecom (Group) 27364 263 270 Armstrong Cable Services 3215 235 312 France Telecom Transpac 22927 235 296 TELEFONICA DE ARGENTINA Number of /24s announced per /8 block (Global) ---------------------------------------------- 12:675 13:1 15:4 17:3 20:9 24:816 25:1 32:85 38:64 40:19 44:2 55:1 57:16 61:431 62:523 63:1886 64:1529 65:1928 66:2365 67:163 68:358 69:110 80:335 81:120 128:153 129:177 130:45 131:82 132:10 133:2 134:154 135:4 136:112 137:111 138:108 139:66 140:147 141:92 142:95 143:45 144:113 145:14 146:270 147:93 148:276 149:72 150:44 151:68 152:245 153:57 154:2 155:106 156:45 157:38 158:123 159:143 160:37 161:75 162:137 163:77 164:313 165:140 166:76 167:328 168:406 169:57 170:314 171:7 192:5346 193:2428 194:1995 195:990 196:458 198:3565 199:3457 200:2934 202:3703 203:5067 204:3070 205:2003 206:2403 207:2406 208:2651 209:2818 210:748 211:339 212:985 213:787 214:21 215:21 216:3299 217:624 218:86 219:12 220:57 End of report

1 0

The Cidr Report
by cidr-report＠potaroo.net 11 Apr '03

11 Apr '03

This report has been generated at Fri Apr 11 21:46:50 2003 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 04-04-03 121205 86530 05-04-03 121077 86591 06-04-03 120820 86365 07-04-03 120917 86463 08-04-03 121020 86473 09-04-03 121144 86561 10-04-03 120942 86620 11-04-03 121008 86701 AS Summary 14913 Number of ASes in routing system 5884 Number of ASes announcing only one prefix 1564 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73154560 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 11Apr03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 121213 86696 34517 28.5% All ASes AS4151 691 75 616 89.1% USDA-1 USDA AS7843 642 188 454 70.7% ADELPHIA-AS Adelphia Corp. AS701 1564 1111 453 29.0% ALTERNET-AS UUNET Technologies, Inc. AS4323 567 167 400 70.5% TW-COMM Time Warner Communications, Inc. AS7132 802 414 388 48.4% SBIS-AS SBC Internet Services - Southwest AS3908 911 529 382 41.9% SUPERNETASBLK SuperNet, Inc. AS7018 1351 976 375 27.8% ATT-INTERNET4 AT&T WorldNet Services AS1221 1107 797 310 28.0% ASN-TELSTRA Telstra Pty Ltd AS1239 965 682 283 29.3% SPRINTLINK Sprint AS6198 457 181 276 60.4% BATI-MIA BellSouth Network Solutions, Inc AS6197 476 202 274 57.6% BATI-ATL BellSouth Network Solutions, Inc AS705 487 215 272 55.9% ALTERNET-AS UUNET Technologies, Inc. AS22927 286 14 272 95.1% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS4355 373 115 258 69.2% ERMS-EARTHLNK EARTHLINK, INC AS4814 270 16 254 94.1% CHINANET-BEIJING-AP China Telecom (Group) AS17557 378 144 234 61.9% PKTELECOM-AS-AP Pakistan Telecom AS209 529 303 226 42.7% ASN-QWEST Qwest AS2386 507 282 225 44.4% INS-AS AT&T Data Communications Services AS17676 237 29 208 87.8% GIGAINFRA XTAGE CORPORATION AS27364 266 59 207 77.8% ACS-INTERNET Armstrong Cable Services AS11305 341 143 198 58.1% INTERLAND-NET1 Interland Incorporated AS22773 203 8 195 96.1% CCINET-2 Cox Communications Inc. Atlanta AS690 495 316 179 36.2% MERIT-AS-27 Merit Network Inc. AS3561 513 335 178 34.7% CWUSA Cable & Wireless USA AS6347 367 190 177 48.2% DIAMOND SAVVIS Communications Corporation AS2048 254 84 170 66.9% LANET-1 State of Louisiana AS22291 241 79 162 67.2% CHARTER-LA Charter Communications AS6327 190 34 156 82.1% SHAWFIBER Shaw Fiberlink Limited AS7303 242 93 149 61.6% AR-TAST-LACNIC Telecom Argentina Stet-France Telecom S.A. AS3215 321 175 146 45.5% AS3215 France Telecom Transpac Total 16033 7956 8077 50.4% Top 30 total Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

1 0

Weekly Routing Table Report
by Routing Table Analysis 11 Apr '03

11 Apr '03

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 11 Apr, 2003 Analysis Summary ---------------- BGP routing table entries examined: 124049 Prefixes after maximum aggregation: 78292 Unique aggregates announced to Internet: 59307 Total ASes present in the Internet Routing Table: 14970 Origin-only ASes present in the Internet Routing Table: 12977 Origin ASes announcing only one prefix: 5887 Transit ASes present in the Internet Routing Table: 1993 Transit-only ASes present in the Internet Routing Table: 70 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 20 Number of addresses announced to Internet: 1206880288 Equivalent to 71 /8s, 239 /16s and 136 /24s Percentage of available address space announced: 32.6 Percentage of allocated address space announced: 58.2 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 58512 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 20748 Total APNIC prefixes after maximum aggregation: 12172 Prefixes being announced from the APNIC address blocks: 19182 Unique aggregates announced from the APNIC address blocks: 11860 APNIC Region origin ASes present in the Internet Routing Table: 1766 APNIC Region origin ASes announcing only one prefix: 519 APNIC Region transit ASes present in the Internet Routing Table: 290 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 109842432 Equivalent to 6 /8s, 140 /16s and 16 /24s Percentage of available APNIC address space announced: 59.2 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 76640 Total ARIN prefixes after maximum aggregation: 48173 Prefixes being announced from the ARIN address blocks: 54924 Unique aggregates announced from the ARIN address blocks: 16806 ARIN Region origin ASes present in the Internet Routing Table: 8306 ARIN Region origin ASes announcing only one prefix: 2829 ARIN Region transit ASes present in the Internet Routing Table: 793 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 190251264 Equivalent to 11 /8s, 87 /16s and 1 /24s Percentage of available ARIN address space announced: 70.9 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 25600 - 26591, 26624 - 27647, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 21362 Total RIPE prefixes after maximum aggregation: 15737 Prefixes being announced from the RIPE address blocks: 17881 Unique aggregates announced from the RIPE address blocks: 11986 RIPE Region origin ASes present in the Internet Routing Table: 4498 RIPE Region origin ASes announcing only one prefix: 2454 RIPE Region transit ASes present in the Internet Routing Table: 811 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 128928000 Equivalent to 7 /8s, 175 /16s and 73 /24s Percentage of available RIPE address space announced: 76.8 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5297 Total LACNIC prefixes after maximum aggregation: 2210 Prefixes being announced from the LACNIC address blocks: 4681 Unique aggregates announced from the LACNIC address blocks: 2960 LACNIC Region origin ASes present in the Internet Routing Table: 330 LACNIC Region origin ASes announcing only one prefix: 85 LACNIC Region transit ASes present in the Internet Routing Table: 68 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 12420096 Equivalent to 0 /8s, 189 /16s and 132 /24s Percentage of available LACNIC address space announced: 37.0 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1100 1105 790 Telstra Pty Ltd 703 394 365 313 UUNET 2907 379 1974 358 SINET Japan 17557 378 28 142 Pakistan Telecom 2764 323 341 291 connect.com.au pty ltd 7474 271 276 207 Optus Communications Pty Ltd 4814 270 79 15 China Telecom (Group) 3786 245 775 212 DACOM Corporation 17676 239 3686 26 XTAGE CORPORATION 4755 236 135 75 Videsh Sanchar Nigam Ltd. Aut 4134 235 1999 122 Data Communications Bureau 9583 220 33 14 Satyam Infoway Ltd., 4766 210 2078 159 Korea Internet Exchange for " 9443 180 58 79 Primus Telecommunications 9800 175 244 53 CHINA UNICOM 9238 140 8 17 TATA ISP 7476 137 182 29 The University of Queensland 4739 129 57 118 Commerical Internet eXchange 4716 128 731 122 TTnet 9498 126 9 10 BHARTI BT INTERNET LTD. ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1596 8895 1124 UUNET Technologies, Inc. 7018 1360 7172 941 AT&T 1239 967 3120 681 Sprint 3908 933 1571 475 Supernet, Inc. 7132 802 6148 414 Southwestern Bell Internet Se 1 772 2846 493 GENUITY 189 706 341 291 Genuity 4151 691 691 58 USDA 7843 645 401 163 Adelphia Corp. 3561 585 2351 337 Cable & Wireless USA 4323 568 498 165 Time Warner Communications, I 852 549 1110 430 Telus Advanced Communications 18566 540 128 6 Covad Communications 209 535 2140 302 Qwest 2386 508 482 269 AT&T Data Communications Serv 690 495 73 316 Merit Network 705 487 229 215 UUNET Technologies, Inc. 7066 485 204 255 Virginia Polytechnic Institut 6197 476 338 196 BellSouth Network Solutions, 6198 455 226 174 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 779 2203 646 UUNET - Commercial IP service 3215 320 851 175 France Telecom Transpac 3301 309 1157 299 TeliaNet Sweden 3320 269 1997 231 Deutsche Telekom AG 680 232 2053 229 DFN-IP service G-WiN 1257 216 327 190 SWIPnet Swedish IP Network 5400 196 97 110 BT Ignite European Backbone 5515 196 779 168 Sonera Solution Autonomous Sy 719 195 307 125 LANLINK autonomous system 786 180 1874 180 The JANET IP Service 8220 169 298 159 COLT Internet - International 20858 161 17 3 This AS will be used to conne 8708 155 44 151 Romania Data Systems S.A. 3303 144 517 143 Swisscom Ltd 12302 126 18 33 MobiFon S.A. 2856 119 1298 109 BTnet UK Regional network 3269 112 755 63 TELECOM ITALIA 3246 110 384 107 Song Networks 3233 107 11 12 RNC - Romanian Natioanal R&D 3352 106 734 32 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 294 99 105 ImpSat 7303 242 36 61 Telecom Argentina Stet-France 8151 217 334 119 UniNet S.A. de C.V. 11172 163 66 33 Servicios Alestra S.A de C.V 6503 154 207 108 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 10620 113 7 33 TVCABLE BOGOTA 11340 106 3 34 Red Universitaria Nacional 6147 90 62 20 Telefonica Del Peru 11992 90 9 36 Integrated Systems 1916 75 306 45 Fundacao de Amparo a Pesquisa 8065 75 6 15 Empresas Publicas de Medellin 6535 74 5 19 Chilesat Servicios Empresari 13999 74 36 8 Mega Cable S.A. de C.V. 15311 72 28 36 Telefonica Empresas 4270 68 18 10 Red de Interconexion Universi 11830 65 4 26 Instituto Costarricense de El 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 61 11 40 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4151 691 633 USDA 18566 540 534 Covad Communications 7843 645 482 Adelphia Corp. 3908 933 458 Supernet, Inc. 7018 1360 419 AT&T 189 706 415 Genuity 4323 568 403 Time Warner Communications, I 7132 802 388 Southwestern Bell Internet Se 1221 1100 310 Telstra Pty Ltd 1239 967 286 Sprint 6347 368 286 SAVVIS Communications Corpora 6198 455 281 BellSouth Network Solutions, 6197 476 280 BellSouth Network Solutions, 1 772 279 GENUITY 705 487 272 UUNET Technologies, Inc. 4355 373 272 EarthLink, Inc. 22927 286 272 TELEFONICA DE ARGENTINA 4814 270 255 China Telecom (Group) 3561 585 248 Cable & Wireless USA 27364 266 248 Armstrong Cable Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.16.52.0/24 1239 Sprint 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM, 192.158.251.0/24 27321 INTERNET SOFTWARE CONSORTIUM, 192.172.0.0/19 568 DISO-UNRRA 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:17 /9:5 /10:8 /11:13 /12:47 /13:92 /14:251 /15:464 /16:7379 /17:1636 /18:2952 /19:8309 /20:8210 /21:5922 /22:8847 /23:10647 /24:68727 /25:158 /26:193 /27:52 /28:26 /29:13 /30:44 /31:0 /32:37 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 627 706 Genuity 3908 592 933 Supernet, Inc. 18566 534 540 Covad Communications 702 485 779 UUNET - Commercial IP service 701 476 1596 UUNET Technologies, Inc. 7018 476 1360 AT&T 690 444 495 Merit Network 7843 392 645 Adelphia Corp. 7066 384 485 Virginia Polytechnic Institut 1239 367 967 Sprint 6198 359 455 BellSouth Network Solutions, 6197 355 476 BellSouth Network Solutions, 11305 318 341 Interland Incorporated 2386 304 508 AT&T Data Communications Serv 20115 299 426 Charter Communications 22927 285 286 TELEFONICA DE ARGENTINA 6140 281 294 ImpSat 1 272 772 GENUITY 27364 259 266 Armstrong Cable Services 3215 243 320 France Telecom Transpac Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:1 12:677 13:1 15:4 17:3 20:9 24:801 25:1 32:86 38:63 40:18 44:2 55:1 57:17 61:407 62:519 63:1883 64:1557 65:1916 66:2357 67:161 68:338 69:102 80:329 81:128 128:150 129:180 130:45 131:135 132:11 133:2 134:151 135:4 136:113 137:110 138:105 139:66 140:118 141:91 142:95 143:46 144:113 145:16 146:269 147:93 148:277 149:71 150:46 151:68 152:246 153:57 154:2 155:107 156:46 157:44 158:124 159:141 160:36 161:75 162:129 163:78 164:309 165:134 166:75 167:328 168:396 169:56 170:316 171:7 192:5349 193:2414 194:1985 195:994 196:464 198:3558 199:3386 200:2912 202:3673 203:5077 204:3066 205:2012 206:2426 207:2424 208:2665 209:2883 210:750 211:339 212:983 213:776 214:20 215:21 216:3301 217:635 218:85 219:13 220:54 End of report

1 0

The Cidr Report
by cidr-report＠potaroo.net 04 Apr '03

04 Apr '03

This report has been generated at Fri Apr 4 21:45:29 2003 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 29-03-03 121022 86344 30-03-03 121098 86444 30-03-03 121192 86322 31-03-03 121111 86222 01-04-03 121043 86425 02-04-03 121298 86692 03-04-03 121290 86674 04-04-03 121205 86508 AS Summary 14872 Number of ASes in routing system 5874 Number of ASes announcing only one prefix 1557 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73080832 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 04Apr03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 121023 86497 34526 28.5% All ASes AS4151 612 75 537 87.7% USDA-1 USDA AS18566 516 12 504 97.7% COVAD Covad Communications AS701 1557 1113 444 28.5% ALTERNET-AS UUNET Technologies, Inc. AS7843 621 189 432 69.6% ADELPHIA-AS Adelphia Corp. AS3908 956 529 427 44.7% SUPERNETASBLK SuperNet, Inc. AS7018 1349 958 391 29.0% ATT-INTERNET4 AT&T WorldNet Services AS4323 565 181 384 68.0% TW-COMM Time Warner Communications, Inc. AS7132 727 409 318 43.7% SBIS-AS SBC Internet Services - Southwest AS1221 1108 811 297 26.8% ASN-TELSTRA Telstra Pty Ltd AS1239 960 679 281 29.3% SPRINTLINK Sprint AS22927 295 14 281 95.3% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS6198 460 185 275 59.8% BATI-MIA BellSouth Network Solutions, Inc AS6197 475 202 273 57.5% BATI-ATL BellSouth Network Solutions, Inc AS4355 380 110 270 71.1% ERMS-EARTHLNK EARTHLINK, INC AS705 459 203 256 55.8% ALTERNET-AS UUNET Technologies, Inc. AS4814 269 15 254 94.4% CHINANET-BEIJING-AP China Telecom (Group) AS2386 499 277 222 44.5% INS-AS AT&T Data Communications Services AS17676 235 28 207 88.1% GIGAINFRA XTAGE CORPORATION AS27364 266 65 201 75.6% ACS-INTERNET Armstrong Cable Services AS11305 340 146 194 57.1% INTERLAND-NET1 Interland Incorporated AS22773 202 8 194 96.0% CCINET-2 Cox Communications Inc. Atlanta AS209 523 337 186 35.6% ASN-QWEST Qwest AS690 502 318 184 36.7% MERIT-AS-27 Merit Network Inc. AS22291 240 60 180 75.0% CHARTER-LA Charter Communications AS3561 515 338 177 34.4% CWUSA Cable & Wireless USA AS2048 258 87 171 66.3% LANET-1 State of Louisiana AS6347 368 201 167 45.4% DIAMOND SAVVIS Communications Corporation AS1 639 483 156 24.4% GNTY-1 Genuity AS6327 190 34 156 82.1% SHAWFIBER Shaw Fiberlink Limited AS6140 295 152 143 48.5% IMPSAT-USA ImpSat Total 16381 8219 8162 49.8% Top 30 total Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

1 0

Weekly Routing Table Report
by Routing Table Analysis 04 Apr '03

04 Apr '03

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 04 Apr, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123590 Prefixes after maximum aggregation: 78340 Unique aggregates announced to Internet: 58939 Total ASes present in the Internet Routing Table: 14931 Origin-only ASes present in the Internet Routing Table: 12943 Origin ASes announcing only one prefix: 5863 Transit ASes present in the Internet Routing Table: 1988 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 5 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 22 Number of addresses announced to Internet: 1222409184 Equivalent to 72 /8s, 220 /16s and 123 /24s Percentage of available address space announced: 33.0 Percentage of allocated address space announced: 59.9 Percentage of available address space allocated: 55.0 Total number of prefixes smaller than registry allocations: 58485 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 20488 Total APNIC prefixes after maximum aggregation: 12277 Prefixes being announced from the APNIC address blocks: 18943 Unique aggregates announced from the APNIC address blocks: 11702 APNIC Region origin ASes present in the Internet Routing Table: 1762 APNIC Region origin ASes announcing only one prefix: 522 APNIC Region transit ASes present in the Internet Routing Table: 285 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 108879360 Equivalent to 6 /8s, 125 /16s and 94 /24s Percentage of available APNIC address space announced: 64.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 76495 Total ARIN prefixes after maximum aggregation: 48164 Prefixes being announced from the ARIN address blocks: 54710 Unique aggregates announced from the ARIN address blocks: 16696 ARIN Region origin ASes present in the Internet Routing Table: 8289 ARIN Region origin ASes announcing only one prefix: 2804 ARIN Region transit ASes present in the Internet Routing Table: 795 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 190081984 Equivalent to 11 /8s, 84 /16s and 107 /24s Percentage of available ARIN address space announced: 70.8 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 25600 - 26591, 26624 - 27647, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 21353 Total RIPE prefixes after maximum aggregation: 15689 Prefixes being announced from the RIPE address blocks: 17870 Unique aggregates announced from the RIPE address blocks: 11931 RIPE Region origin ASes present in the Internet Routing Table: 4480 RIPE Region origin ASes announcing only one prefix: 2452 RIPE Region transit ASes present in the Internet Routing Table: 811 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 128463104 Equivalent to 7 /8s, 168 /16s and 49 /24s Percentage of available RIPE address space announced: 76.6 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5249 Total LACNIC prefixes after maximum aggregation: 2210 Prefixes being announced from the LACNIC address blocks: 4645 Unique aggregates announced from the LACNIC address blocks: 2939 LACNIC Region origin ASes present in the Internet Routing Table: 329 LACNIC Region origin ASes announcing only one prefix: 85 LACNIC Region transit ASes present in the Internet Routing Table: 67 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 12407040 Equivalent to 0 /8s, 189 /16s and 81 /24s Percentage of available LACNIC address space announced: 74.0 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1101 1105 804 Telstra Pty Ltd 703 397 367 313 UUNET 2907 381 1976 360 SINET Japan 2764 318 340 286 connect.com.au pty ltd 7474 271 276 207 Optus Communications Pty Ltd 4814 269 79 15 China Telecom (Group) 3786 245 775 212 DACOM Corporation 4134 240 2051 127 Data Communications Bureau 17676 237 3654 25 XTAGE CORPORATION 4755 230 135 75 Videsh Sanchar Nigam Ltd. Aut 17557 228 17 119 Pakistan Telecom 9583 219 33 14 Satyam Infoway Ltd., 4766 211 2078 158 Korea Internet Exchange for " 9443 179 58 78 Primus Telecommunications 9800 174 226 48 CHINA UNICOM 9238 134 8 21 TATA ISP 4716 128 731 122 TTnet 4739 128 57 117 Commerical Internet eXchange 9498 127 9 10 BHARTI BT INTERNET LTD. 9768 125 384 64 Korea Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1581 8873 1117 UUNET Technologies, Inc. 7018 1352 7153 936 AT&T 3908 979 1571 475 Supernet, Inc. 1239 968 3139 684 Sprint 1 773 2845 490 GENUITY 7132 727 6084 408 Southwestern Bell Internet Se 189 706 341 291 Genuity 7843 624 400 166 Adelphia Corp. 4151 612 691 58 USDA 3561 587 2353 338 Cable & Wireless USA 4323 566 491 178 Time Warner Communications, I 852 550 1107 433 Telus Advanced Communications 18566 534 124 7 Covad Communications 209 529 2089 337 Qwest 690 502 73 318 Merit Network 2386 500 481 271 AT&T Data Communications Serv 7066 485 204 255 Virginia Polytechnic Institut 6197 475 338 196 BellSouth Network Solutions, 705 463 188 207 UUNET Technologies, Inc. 6198 458 226 178 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 782 2221 649 UUNET - Commercial IP service 3215 316 851 175 France Telecom Transpac 3301 311 1174 301 TeliaNet Sweden 3320 267 1996 230 Deutsche Telekom AG 680 232 2053 229 DFN-IP service G-WiN 1257 216 328 190 SWIPnet Swedish IP Network 719 195 307 125 LANLINK autonomous system 5515 195 779 168 Sonera Solution Autonomous Sy 5400 194 93 108 BT Ignite European Backbone 786 180 1874 180 The JANET IP Service 20858 155 17 3 This AS will be used to conne 8708 154 42 150 Romania Data Systems S.A. 3303 145 517 144 Swisscom Ltd 8220 137 215 128 COLT Internet - International 12302 124 18 31 MobiFon S.A. 2856 119 1298 109 BTnet UK Regional network 3269 112 754 62 TELECOM ITALIA 3246 110 384 107 Song Networks 3233 107 11 12 RNC - Romanian Natioanal R&D 3352 105 734 32 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 295 99 106 ImpSat 7303 241 36 65 Telecom Argentina Stet-France 8151 213 333 115 UniNet S.A. de C.V. 11172 164 66 33 Servicios Alestra S.A de C.V 6503 156 207 109 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 11340 109 3 37 Red Universitaria Nacional 10620 107 7 31 TVCABLE BOGOTA 11992 90 9 36 Integrated Systems 6147 77 62 20 Telefonica Del Peru 6535 73 5 21 Chilesat Servicios Empresari 8065 73 6 18 Empresas Publicas de Medellin 15311 71 27 36 Telefonica Empresas 1916 70 304 44 Fundacao de Amparo a Pesquisa 4270 69 18 10 Red de Interconexion Universi 13999 68 36 8 Mega Cable S.A. de C.V. 11830 65 4 26 Instituto Costarricense de El 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 61 11 40 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4151 612 554 USDA 18566 534 527 Covad Communications 3908 979 504 Supernet, Inc. 7843 624 458 Adelphia Corp. 7018 1352 416 AT&T 189 706 415 Genuity 4323 566 388 Time Warner Communications, I 7132 727 319 Southwestern Bell Internet Se 1221 1101 297 Telstra Pty Ltd 6347 370 288 SAVVIS Communications Corpora 1239 968 284 Sprint 1 773 283 GENUITY 22927 295 281 TELEFONICA DE ARGENTINA 6198 458 280 BellSouth Network Solutions, 6197 475 279 BellSouth Network Solutions, 4355 379 277 EarthLink, Inc. 705 463 256 UUNET Technologies, Inc. 4814 269 254 China Telecom (Group) 3561 587 249 Cable & Wireless USA 27364 266 248 Armstrong Cable Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64500 RESERVED 192.83.252.0/24 297 NASA Science Network 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve 65000 PRIVATE 202.172.216.0/24 9226 AS for Singapore Int 65000 PRIVATE 202.172.217.0/24 9226 AS for Singapore Int Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.16.52.0/24 1239 Sprint 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.75.199.0/24 25745 Alentus Corporation 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM, 192.158.251.0/24 27321 INTERNET SOFTWARE CONSORTIUM, 192.172.0.0/19 568 DISO-UNRRA 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:5 /10:8 /11:13 /12:47 /13:92 /14:248 /15:460 /16:7375 /17:1644 /18:2953 /19:8262 /20:8192 /21:5911 /22:8840 /23:10653 /24:68292 /25:173 /26:192 /27:52 /28:34 /29:20 /30:60 /31:0 /32:46 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 627 706 Genuity 3908 615 979 Supernet, Inc. 18566 529 534 Covad Communications 702 485 782 UUNET - Commercial IP service 701 469 1581 UUNET Technologies, Inc. 7018 468 1352 AT&T 690 451 502 Merit Network 7066 384 485 Virginia Polytechnic Institut 7843 374 624 Adelphia Corp. 1239 373 968 Sprint 6198 362 458 BellSouth Network Solutions, 6197 354 475 BellSouth Network Solutions, 11305 317 340 Interland Incorporated 2386 299 500 AT&T Data Communications Serv 20115 298 425 Charter Communications 22927 294 295 TELEFONICA DE ARGENTINA 6140 282 295 ImpSat 1 277 773 GENUITY 27364 259 266 Armstrong Cable Services 7303 240 241 Telecom Argentina Stet-France Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:670 13:1 15:4 17:2 20:10 24:789 25:1 32:86 38:65 40:18 44:2 55:1 57:17 61:461 62:517 63:1888 64:1516 65:1907 66:2338 67:176 68:322 69:79 80:333 81:123 128:150 129:176 130:45 131:83 132:11 133:11 134:146 135:4 136:113 137:111 138:105 139:66 140:149 141:88 142:94 143:48 144:101 145:16 146:268 147:90 148:278 149:73 150:43 151:66 152:248 153:53 154:2 155:119 156:46 157:44 158:124 159:140 160:34 161:60 162:129 163:78 164:309 165:135 166:75 167:325 168:408 169:56 170:314 171:6 192:5354 193:2399 194:1986 195:991 196:478 198:3563 199:3293 200:2884 202:3541 203:4995 204:3064 205:2015 206:2390 207:2395 208:2668 209:2916 210:736 211:337 212:1015 213:773 214:20 215:21 216:3326 217:613 218:83 219:11 220:57 End of report

1 0

The Cidr Report
by cidr-report＠potaroo.net 28 Mar '03

28 Mar '03

This report has been generated at Fri Mar 28 21:50:09 2003 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 21-03-03 120815 86434 22-03-03 120741 86424 23-03-03 120589 86556 24-03-03 120679 86593 25-03-03 120712 86324 26-03-03 120739 86276 27-03-03 120877 86281 28-03-03 120855 86349 AS Summary 14836 Number of ASes in routing system 5851 Number of ASes announcing only one prefix 1555 Largest number of prefixes announced by an AS AS701 : ALTERNET-AS UUNET Technologies, Inc. 73048064 Largest address span announced by an AS (/32s) AS568 : SUMNET-AS DISO-UNRRA Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 28Mar03 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 121000 86362 34638 28.6% All ASes AS3908 1048 537 511 48.8% SUPERNETASBLK SuperNet, Inc. AS18566 509 14 495 97.2% COVAD Covad Communications AS4151 585 107 478 81.7% USDA-1 USDA AS701 1555 1115 440 28.3% ALTERNET-AS UUNET Technologies, Inc. AS7843 599 198 401 66.9% ADELPHIA-AS Adelphia Corp. AS7018 1346 952 394 29.3% ATT-INTERNET4 AT&T WorldNet Services AS4323 561 176 385 68.6% TW-COMM Time Warner Communications, Inc. AS1221 1109 813 296 26.7% ASN-TELSTRA Telstra Pty Ltd AS1239 968 688 280 28.9% SPRINTLINK Sprint AS6197 476 202 274 57.6% BATI-ATL BellSouth Network Solutions, Inc AS22927 286 14 272 95.1% AR-TEAR2-LACNIC TELEFONICA DE ARGENTINA AS6198 450 182 268 59.6% BATI-MIA BellSouth Network Solutions, Inc AS705 534 268 266 49.8% ASN-ALTERNET UUNET Technologies, Inc. AS4355 382 116 266 69.6% ERMS-EARTHLNK EARTHLINK, INC AS1 685 429 256 37.4% GNTY-1 Genuity AS4814 267 15 252 94.4% CHINANET-BEIJING-AP China Telecom (Group) AS2386 499 249 250 50.1% INS-AS AT&T Data Communications Services AS17676 235 28 207 88.1% GIGAINFRA XTAGE CORPORATION AS22291 239 39 200 83.7% CHARTER-LA Charter Communications AS27364 265 65 200 75.5% ACS-INTERNET Armstrong Cable Services AS7132 674 475 199 29.5% SBIS-AS SBC Internet Services - Southwest AS4134 316 123 193 61.1% CHINANET-BACKBONE No.31,Jin-rong Street AS22773 197 8 189 95.9% CCINET-2 Cox Communications Inc. Atlanta AS209 526 339 187 35.6% ASN-QWEST Qwest AS690 503 316 187 37.2% MERIT-AS-27 Merit Network Inc. AS6347 373 193 180 48.3% DIAMOND SAVVIS Communications Corporation AS3561 520 344 176 33.8% CWUSA Cable & Wireless USA AS2048 259 87 172 66.4% LANET-1 State of Louisiana AS17557 375 214 161 42.9% PKTELECOM-AS-AP Pakistan Telecom AS6140 290 140 150 51.7% IMPSAT-USA ImpSat Total 16631 8446 8185 49.2% Top 30 total Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org

1 0

Weekly Routing Table Report
by Routing Table Analysis 28 Mar '03

28 Mar '03

This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats(a)lists.apnic.net For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 28 Mar, 2003 Analysis Summary ---------------- BGP routing table entries examined: 122998 Prefixes after maximum aggregation: 78122 Unique aggregates announced to Internet: 59135 Total ASes present in the Internet Routing Table: 14894 Origin-only ASes present in the Internet Routing Table: 12911 Origin ASes announcing only one prefix: 5837 Transit ASes present in the Internet Routing Table: 1983 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 2 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 19 Number of addresses announced to Internet: 1220551781 Equivalent to 72 /8s, 192 /16s and 36 /24s Percentage of available address space announced: 32.9 Percentage of allocated address space announced: 59.8 Percentage of available address space allocated: 55.0 Total number of prefixes smaller than registry allocations: 57742 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 20725 Total APNIC prefixes after maximum aggregation: 12301 Prefixes being announced from the APNIC address blocks: 19182 Unique aggregates announced from the APNIC address blocks: 11850 APNIC Region origin ASes present in the Internet Routing Table: 1758 APNIC Region origin ASes announcing only one prefix: 516 APNIC Region transit ASes present in the Internet Routing Table: 288 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 108415488 Equivalent to 6 /8s, 118 /16s and 74 /24s Percentage of available APNIC address space announced: 64.2 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 75705 Total ARIN prefixes after maximum aggregation: 47969 Prefixes being announced from the ARIN address blocks: 53900 Unique aggregates announced from the ARIN address blocks: 16821 ARIN Region origin ASes present in the Internet Routing Table: 8263 ARIN Region origin ASes announcing only one prefix: 2788 ARIN Region transit ASes present in the Internet Routing Table: 793 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 188991296 Equivalent to 11 /8s, 67 /16s and 199 /24s Percentage of available ARIN address space announced: 70.4 ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106 2138 - 2584, 2615 - 2772, 2823 - 2829, 2880 - 3153 3354 - 4607, 4865 - 5119, 5632 - 6655, 6912 - 7466 7723 - 8191, 10240 - 12287, 13312 - 15359 16384 - 17407, 18432 - 20479, 21504 - 23551 25600 - 26591, 26624 - 27647, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 21357 Total RIPE prefixes after maximum aggregation: 15641 Prefixes being announced from the RIPE address blocks: 17880 Unique aggregates announced from the RIPE address blocks: 11859 RIPE Region origin ASes present in the Internet Routing Table: 4470 RIPE Region origin ASes announcing only one prefix: 2446 RIPE Region transit ASes present in the Internet Routing Table: 808 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 128518400 Equivalent to 7 /8s, 169 /16s and 9 /24s Percentage of available RIPE address space announced: 76.6 RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503, 24576 - 25599, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5209 Total LACNIC prefixes after maximum aggregation: 2211 Prefixes being announced from the LACNIC address blocks: 4635 Unique aggregates announced from the LACNIC address blocks: 2949 LACNIC Region origin ASes present in the Internet Routing Table: 331 LACNIC Region origin ASes announcing only one prefix: 87 LACNIC Region transit ASes present in the Internet Routing Table: 70 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 12399872 Equivalent to 0 /8s, 189 /16s and 53 /24s Percentage of available LACNIC address space announced: 73.9 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1104 1106 808 Telstra Pty Ltd 703 406 370 314 UUNET 2907 385 1975 364 SINET Japan 17557 375 28 141 Pakistan Telecom 2764 324 340 291 connect.com.au pty ltd 4134 314 2698 104 Data Communications Bureau 7474 307 276 208 Optus Communications Pty Ltd 4814 267 79 15 China Telecom (Group) 3786 251 772 212 DACOM Corporation 17676 237 3654 25 XTAGE CORPORATION 4755 229 133 74 Videsh Sanchar Nigam Ltd. Aut 9583 219 33 14 Satyam Infoway Ltd., 4766 211 2074 158 Korea Internet Exchange for " 9443 179 58 78 Primus Telecommunications 9800 174 221 46 CHINA UNICOM 9238 135 8 17 TATA ISP 4716 128 717 122 TTnet 9498 128 9 19 BHARTI BT INTERNET LTD. 4739 127 57 116 Commerical Internet eXchange 7539 127 166 121 TANet2, sponsored by NSC, TAI ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1576 8935 1116 UUNET Technologies, Inc. 7018 1350 7141 942 AT&T 3908 1073 1588 481 Supernet, Inc. 1239 978 3123 695 Sprint 1 690 8073 427 GENUITY 7132 674 5939 475 Southwestern Bell Internet Se 7843 602 400 169 Adelphia Corp. 3561 593 2352 345 Cable & Wireless USA 4151 585 691 60 USDA 4323 562 490 174 Time Warner Communications, I 852 553 1107 436 Telus Advanced Communications 18566 543 122 13 Covad Communications 705 535 208 269 UUNET Technologies, Inc. 209 532 2105 339 Qwest 690 503 73 316 Merit Network 7066 500 204 255 Virginia Polytechnic Institut 2386 499 481 247 AT&T Data Communications Serv 6197 476 338 196 BellSouth Network Solutions, 6198 448 222 175 BellSouth Network Solutions, 20115 419 173 275 Charter Communications RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 783 2236 649 UUNET - Commercial IP service 3301 311 1174 301 TeliaNet Sweden 3215 308 835 173 France Telecom Transpac 3320 267 1996 230 Deutsche Telekom AG 680 232 2053 229 DFN-IP service G-WiN 5400 223 77 106 BT Ignite European Backbone 1257 217 328 191 SWIPnet Swedish IP Network 719 202 307 125 LANLINK autonomous system 5515 187 779 161 Sonera Solution Autonomous Sy 786 180 1874 180 The JANET IP Service 20858 153 17 3 This AS will be used to conne 8708 150 42 146 Romania Data Systems S.A. 3303 145 517 144 Swisscom Ltd 8220 136 215 128 COLT Internet - International 12302 123 18 30 MobiFon S.A. 2856 119 1298 109 BTnet UK Regional network 3269 112 753 62 TELECOM ITALIA 3246 110 384 107 Song Networks 3233 107 11 12 RNC - Romanian Natioanal R&D 3352 106 734 32 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 290 98 107 ImpSat 7303 241 36 59 Telecom Argentina Stet-France 8151 216 349 116 UniNet S.A. de C.V. 11172 165 66 33 Servicios Alestra S.A de C.V 6503 155 191 109 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 11340 109 3 37 Red Universitaria Nacional 10620 107 7 31 TVCABLE BOGOTA 6147 76 62 20 Telefonica Del Peru 1916 75 306 45 Fundacao de Amparo a Pesquisa 11992 74 8 36 Integrated Systems 6535 73 5 21 Chilesat Servicios Empresari 8065 73 6 18 Empresas Publicas de Medellin 15311 71 27 36 Telefonica Empresas 4270 69 18 10 Red de Interconexion Universi 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 11830 64 4 25 Instituto Costarricense de El 7984 61 11 40 Global One Colombia 15034 59 5 31 TIBA SA Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 3908 1073 592 Supernet, Inc. 18566 543 530 Covad Communications 4151 585 525 USDA 7843 602 433 Adelphia Corp. 7018 1350 408 AT&T 4323 562 388 Time Warner Communications, I 1221 1104 296 Telstra Pty Ltd 6347 375 293 SAVVIS Communications Corpora 1239 978 283 Sprint 6197 476 280 BellSouth Network Solutions, 4355 387 278 EarthLink, Inc. 6198 448 273 BellSouth Network Solutions, 22927 286 272 TELEFONICA DE ARGENTINA 705 535 266 UUNET Technologies, Inc. 1 690 263 GENUITY 2386 499 252 AT&T Data Communications Serv 4814 267 252 China Telecom (Group) 3561 593 248 Cable & Wireless USA 27364 265 247 Armstrong Cable Services 7066 500 245 Virginia Polytechnic Institut List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM, 192.172.0.0/19 568 DISO-UNRRA 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:3 /10:8 /11:13 /12:47 /13:91 /14:243 /15:455 /16:7365 /17:1636 /18:2939 /19:8272 /20:8227 /21:5866 /22:8858 /23:10655 /24:67415 /25:194 /26:198 /27:129 /28:125 /29:79 /30:90 /31:4 /32:68 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 3908 671 1073 Supernet, Inc. 18566 538 543 Covad Communications 702 486 783 UUNET - Commercial IP service 7018 465 1350 AT&T 701 459 1576 UUNET Technologies, Inc. 690 452 503 Merit Network 7066 399 500 Virginia Polytechnic Institut 1239 374 978 Sprint 6197 355 476 BellSouth Network Solutions, 6198 355 448 BellSouth Network Solutions, 7843 355 602 Adelphia Corp. 2386 299 499 AT&T Data Communications Serv 20115 292 419 Charter Communications 22927 285 286 TELEFONICA DE ARGENTINA 705 281 535 UUNET Technologies, Inc. 6140 277 290 ImpSat 27364 258 265 Armstrong Cable Services 7303 240 241 Telecom Argentina Stet-France 3215 232 308 France Telecom Transpac 209 225 532 Qwest Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:664 13:1 15:4 17:2 20:10 24:770 25:1 32:93 38:63 40:18 44:2 55:1 57:16 61:462 62:515 63:1947 64:1475 65:1902 66:1606 67:202 68:301 69:70 80:335 81:109 128:149 129:210 130:45 131:83 132:11 133:11 134:146 135:4 136:113 137:111 138:106 139:67 140:149 141:85 142:97 143:47 144:95 145:16 146:266 147:90 148:274 149:74 150:42 151:66 152:248 153:52 154:2 155:112 156:45 157:44 158:123 159:140 160:33 161:61 162:127 163:81 164:307 165:145 166:74 167:322 168:397 169:56 170:316 171:6 192:5303 193:2392 194:1989 195:977 196:478 198:3570 199:3276 200:2883 202:3649 203:5050 204:3053 205:2025 206:2393 207:2407 208:2681 209:2816 210:733 211:332 212:988 213:773 214:20 215:22 216:3234 217:605 218:82 219:11 220:54 End of report

1 0