May 2002 - routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Table Analysis 31 May '02

31 May '02

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 31 May, 2002 Analysis Summary ---------------- BGP routing table entries examined: 113208 Prefixes after maximum aggregation: 73232 Unique aggregates announced to Internet: 52880 Total ASes present in the Internet Routing Table: 13148 Origin-only ASes present in the Internet Routing Table: 11405 Origin ASes announcing only one prefix: 5013 Transit ASes present in the Internet Routing Table: 1743 Transit-only ASes present in the Internet Routing Table: 55 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 18 Illegal AS announcements present in the Routing Table: 1 Non-routable prefixes present in the Routing Table: 1 Prefixes being announced from the IANA Reserved Address blocks: 38 Number of addresses announced to Internet: 1178191436 Equivalent to 70 /8s, 57 /16s and 198 /24s Percentage of available address space announced: 31.8 Percentage of allocated address space announced: 59.2 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 45887 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18102 Total APNIC prefixes after maximum aggregation: 10934 Prefixes being announced from the APNIC address blocks: 16583 Unique aggregates announced from the APNIC address blocks: 9814 APNIC Region origin ASes present in the Internet Routing Table: 1515 APNIC Region origin ASes announcing only one prefix: 502 APNIC Region transit ASes present in the Internet Routing Table: 269 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 13 Number of APNIC addresses announced to Internet: 89895008 Equivalent to 5 /8s, 91 /16s and 176 /24s Percentage of available APNIC address space announced: 66.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 75766 Total ARIN prefixes after maximum aggregation: 47790 Prefixes being announced from the ARIN address blocks: 53927 Unique aggregates announced from the ARIN address blocks: 16653 ARIN Region origin ASes present in the Internet Routing Table: 7767 ARIN Region origin ASes announcing only one prefix: 2468 ARIN Region transit ASes present in the Internet Routing Table: 760 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 192059076 Equivalent to 11 /8s, 114 /16s and 150 /24s Percentage of available ARIN address space announced: 71.5 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 - 26623 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 19340 Total RIPE prefixes after maximum aggregation: 14508 Prefixes being announced from the RIPE address blocks: 15977 Unique aggregates announced from the RIPE address blocks: 10567 RIPE Region origin ASes present in the Internet Routing Table: 3811 RIPE Region origin ASes announcing only one prefix: 2043 RIPE Region transit ASes present in the Internet Routing Table: 697 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 110117664 Equivalent to 6 /8s, 144 /16s and 67 /24s Percentage of available RIPE address space announced: 72.9 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1268 1223 911 Telstra Pty Ltd 4538 482 1258 18 China Education and Research 2907 427 1861 368 SINET Japan 703 406 339 326 UUNET Technologies, Inc. 2764 393 360 358 connect.com.au pty ltd 7474 308 292 204 Optus Communications Pty Ltd 17557 289 19 112 Pakistan Telecom 4134 277 2100 94 Data Communications Bureau 9443 266 44 63 Primus Telecommunications 4755 248 109 79 Videsh Sanchar Nigam Ltd. Aut 4766 227 1517 158 Korea Internet Exchange for " 4814 178 70 12 China Telecom (Group) - Beiji 9583 177 32 5 Satyam Infoway Ltd., 7539 153 218 147 TANet2, sponsored by NSC, TAI 9768 147 387 76 Korea Telecom 17676 144 2226 22 XTAGE CORPORATION 7657 136 22 86 The Internet Group Limited 4780 116 186 39 Digital United Inc. 4713 115 1009 106 NTT Communications Corporatio 9800 114 186 22 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1116 2603 844 UUNET Technologies, Inc. 3301 398 908 349 TeliaNet Sweden 3352 278 521 27 Ibernet, Internet Access Netw 3215 266 599 165 France Telecom / &Equant 5515 263 783 175 Sonera Finland Autonomous Sys 3320 236 1947 181 Deutsche Telekom AG 680 231 2149 230 DFN-IP service G-WiN 1257 205 430 202 SWIPnet Swedish IP Network 5400 200 83 95 Concert European Core Network 719 187 290 126 LANLINK autonomous system 786 182 1874 182 The JANET IP Service 8708 148 23 140 Romania Data Systems S.A. 12302 133 10 46 MobiFon S.A. 2856 125 789 115 BTnet UK Regional network 3303 117 546 116 Swisscom Ltd 8297 117 57 65 Teleglobe Autonomous System i 3269 113 692 70 TELECOM ITALIA 3246 107 300 101 Song Networks / Clinet 3233 106 7 52 RNC - Romanian Natioanal R&D 5511 105 191 87 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2005 8882 1439 UUNET Technologies, Inc. 7018 1288 7543 933 AT&T 3908 903 1641 493 Supernet, Inc. 1239 825 3438 654 Sprint 1 815 8168 453 BBN Planet 852 795 1175 445 Telus Advanced Communications 7046 645 934 435 UUNET Technologies, Inc. 4323 634 436 257 Time Warner Communications, I 705 586 122 290 UUNET Technologies, Inc. 209 585 1969 326 Qwest 690 582 79 379 Merit Network 7132 570 606 138 Southwestern Bell Internet Se 3549 513 854 319 Global Crossing 7843 500 357 70 Adelphia Corp. 7066 475 202 248 Virginia Polytechnic Institut 2914 396 2108 389 Verio, Inc. 15290 391 299 204 AT&T Canada IES 2149 346 191 287 Performance Systems, Inc. 3741 345 731 236 The Internet Solution 6197 340 245 164 BellSouth Network Solutions, Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 482 464 China Education and Research 7132 570 432 Southwestern Bell Internet Se 7843 500 430 Adelphia Corp. 3908 903 410 Supernet, Inc. 4323 634 377 Time Warner Communications, I 1 815 362 BBN Planet 1221 1268 357 Telstra Pty Ltd 7018 1288 355 AT&T 852 795 350 Telus Advanced Communications 705 586 296 UUNET Technologies, Inc. 11371 292 286 Rhythms NetConnections 702 1116 272 UUNET Technologies, Inc. 4151 288 272 USDA 209 585 259 Qwest 6347 337 258 SAVVIS Communications Corpora 3352 278 251 Ibernet, Internet Access Netw 7029 262 247 Alltel Information Services, 4355 280 244 EarthLink, Inc. 7066 475 227 Virginia Polytechnic Institut 18566 222 218 Covad Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.0.2.0/24 1103 SURFnet BV Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.26.98.0/24 1239 Sprint 192.44.0.0/19 702 UUNET Technologies, Inc. 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.14.0/24 5515 Sonera Finland Autonomous Sys 192.83.16.0/20 5515 Sonera Finland Autonomous Sys 192.83.25.0/24 5515 Sonera Finland Autonomous Sys 192.83.32.0/19 5515 Sonera Finland Autonomous Sys 192.83.96.0/22 5515 Sonera Finland Autonomous Sys 192.83.100.0/24 5515 Sonera Finland Autonomous Sys 192.91.198.0/24 2568 CTS Network Services 192.92.167.0/24 297 NASA Science Network 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.135.248.0/23 109 Cisco Systems, Inc. 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.152.213.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.195.253.0/24 237 Merit Network 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 7168 Northwest Link Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:6 /10:7 /11:12 /12:34 /13:84 /14:231 /15:414 /16:7222 /17:1438 /18:2593 /19:7575 /20:7181 /21:5098 /22:7790 /23:9505 /24:63292 /25:207 /26:180 /27:81 /28:83 /29:41 /30:89 /31:1 /32:24 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 709 1116 UUNET Technologies, Inc. 701 556 2005 UUNET Technologies, Inc. 3908 490 903 Supernet, Inc. 690 454 582 Merit Network 705 396 586 UUNET Technologies, Inc. 7066 380 475 Virginia Polytechnic Institut 7018 336 1288 AT&T 7843 300 500 Adelphia Corp. 7046 282 645 UUNET Technologies, Inc. 209 264 585 Qwest 1 257 815 BBN Planet 7029 247 262 Alltel Information Services, 6197 245 340 BellSouth Network Solutions, 11371 245 292 Rhythms NetConnections 3301 238 398 TeliaNet Sweden 6198 231 317 BellSouth Network Solutions, 6517 222 244 Yipes Communications, Inc. 18566 218 222 Covad Communications 3549 214 513 Global Crossing 1239 211 825 Sprint Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:511 13:10 15:2 17:6 20:2 24:779 25:1 32:40 38:8 40:6 44:1 57:13 61:233 62:235 63:1929 64:1226 65:1501 66:959 67:80 68:18 80:234 81:24 128:60 129:138 130:23 131:47 132:11 133:3 134:119 135:8 136:246 137:91 138:150 139:57 140:174 141:119 142:77 143:38 144:152 145:11 146:174 147:138 148:200 149:92 150:39 151:97 152:267 153:54 154:14 155:96 156:75 157:132 158:68 159:128 160:18 161:62 162:147 163:100 164:273 165:140 166:230 167:174 168:119 169:58 170:348 171:2 192:5507 193:2423 194:2137 195:962 196:439 198:3711 199:3236 200:2568 202:3130 203:4568 204:3255 205:2169 206:2600 207:2722 208:2665 209:2744 210:595 211:223 212:903 213:621 214:9 215:19 216:3011 217:457 218:27 End of report

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The Cidr Report
by CIDR Report 25 May '02

25 May '02

This is an auto-generated mail on Fri May 24 23:00:00 PDT 2002 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 24May02 0) General Status Table History ------------- Date Prefixes 170502 109785 180502 109834 190502 109804 200502 109906 210502 109923 220502 109973 230502 109965 240502 110020 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 10.1.1.1/32 from AS(65302) AS Summary ---------- 1) Gains by aggregating at the origin AS level --- 24May02 --- For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Weekly Routing Table Report
by Routing Table Analysis 24 May '02

24 May '02

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 24 May, 2002 Analysis Summary ---------------- BGP routing table entries examined: 112362 Prefixes after maximum aggregation: 73172 Unique aggregates announced to Internet: 52720 Total ASes present in the Internet Routing Table: 13122 Origin-only ASes present in the Internet Routing Table: 11366 Origin ASes announcing only one prefix: 4997 Transit ASes present in the Internet Routing Table: 1756 Transit-only ASes present in the Internet Routing Table: 53 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 4 Non-routable prefixes present in the Routing Table: 1 Prefixes being announced from the IANA Reserved Address blocks: 40 Number of addresses announced to Internet: 1180795740 Equivalent to 70 /8s, 97 /16s and 131 /24s Percentage of available address space announced: 31.9 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 45201 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18140 Total APNIC prefixes after maximum aggregation: 10990 Prefixes being announced from the APNIC address blocks: 16614 Unique aggregates announced from the APNIC address blocks: 10372 APNIC Region origin ASes present in the Internet Routing Table: 1514 APNIC Region origin ASes announcing only one prefix: 500 APNIC Region transit ASes present in the Internet Routing Table: 270 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 12 Number of APNIC addresses announced to Internet: 84976608 Equivalent to 5 /8s, 16 /16s and 163 /24s Percentage of available APNIC address space announced: 62.8 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 75327 Total ARIN prefixes after maximum aggregation: 47783 Prefixes being announced from the ARIN address blocks: 53594 Unique aggregates announced from the ARIN address blocks: 16753 ARIN Region origin ASes present in the Internet Routing Table: 7746 ARIN Region origin ASes announcing only one prefix: 2454 ARIN Region transit ASes present in the Internet Routing Table: 762 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 192714436 Equivalent to 11 /8s, 124 /16s and 150 /24s Percentage of available ARIN address space announced: 71.8 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 - 26623 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 18894 Total RIPE prefixes after maximum aggregation: 14399 Prefixes being announced from the RIPE address blocks: 15552 Unique aggregates announced from the RIPE address blocks: 9789 RIPE Region origin ASes present in the Internet Routing Table: 3810 RIPE Region origin ASes announcing only one prefix: 2043 RIPE Region transit ASes present in the Internet Routing Table: 708 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 115017648 Equivalent to 6 /8s, 219 /16s and 7 /24s Percentage of available RIPE address space announced: 76.2 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1270 1223 912 Telstra Pty Ltd 4538 476 1194 17 China Education and Research 2907 426 1845 367 SINET Japan 703 405 338 326 UUNET Technologies, Inc. 2764 398 361 363 connect.com.au pty ltd 7474 308 291 206 Optus Communications Pty Ltd 17557 278 19 108 Pakistan Telecom 4134 276 2076 93 Data Communications Bureau 9443 266 44 63 Primus Telecommunications 4755 249 109 75 Videsh Sanchar Nigam Ltd. Aut 4766 223 1516 155 Korea Internet Exchange for " 9583 180 32 5 Satyam Infoway Ltd., 4814 160 68 16 China Telecom (Group) - Beiji 7539 153 218 147 TANet2, sponsored by NSC, TAI 9768 146 386 76 Korea Telecom 7657 128 22 85 The Internet Group Limited 17676 128 1970 11 XTAGE CORPORATION 4780 117 186 39 Digital United Inc. 4713 115 1009 106 NTT Communications Corporatio 9800 114 186 22 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1022 2610 847 UUNET Technologies, Inc. 3301 394 908 346 TeliaNet Sweden 3215 264 599 164 France Telecom / &Equant 5515 263 775 175 Sonera Finland Autonomous Sys 3320 235 1948 181 Deutsche Telekom AG 680 231 2149 230 DFN-IP service G-WiN 1257 208 430 205 SWIPnet Swedish IP Network 5400 200 83 95 Concert European Core Network 786 182 1874 182 The JANET IP Service 719 178 290 124 LANLINK autonomous system 8708 148 23 140 Romania Data Systems S.A. 12302 133 9 46 MobiFon S.A. 2856 126 789 116 BTnet UK Regional network 3303 116 546 115 Swisscom Ltd 8297 116 57 65 Teleglobe Autonomous System i 3269 115 694 71 TELECOM ITALIA 5511 105 191 87 France Telecom 517 100 226 96 KPNQwest Germany GmbH 2830 100 252 76 UUNET Dual-Homed customers 2874 97 84 37 Global One Services AB ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1997 8914 1431 UUNET Technologies, Inc. 7018 1293 7572 939 AT&T 3908 895 1640 485 Supernet, Inc. 1239 828 3442 659 Sprint 1 805 8168 454 BBN Planet 852 741 1176 448 Telus Advanced Communications 7046 680 937 460 UUNET Technologies, Inc. 4323 631 436 257 Time Warner Communications, I 690 587 79 383 Merit Network 209 582 1970 322 Qwest 7132 569 606 137 Southwestern Bell Internet Se 3549 517 854 322 Global Crossing 7843 510 363 61 Adelphia Corp. 7066 475 202 248 Virginia Polytechnic Institut 2914 398 2108 389 Verio, Inc. 15290 392 300 204 AT&T Canada IES 705 374 100 266 UUNET Technologies, Inc. 3741 345 731 236 The Internet Solution 2149 343 191 284 Performance Systems, Inc. 6197 341 260 164 BellSouth Network Solutions, Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 476 459 China Education and Research 7843 510 449 Adelphia Corp. 7132 569 432 Southwestern Bell Internet Se 3908 895 410 Supernet, Inc. 4323 631 374 Time Warner Communications, I 1221 1270 358 Telstra Pty Ltd 7018 1293 354 AT&T 1 805 351 BBN Planet 852 741 293 Telus Advanced Communications 11371 292 286 Rhythms NetConnections 4151 288 272 USDA 209 582 260 Qwest 6347 337 258 SAVVIS Communications Corpora 7029 261 246 Alltel Information Services, 4355 277 240 EarthLink, Inc. 7066 475 227 Virginia Polytechnic Institut 7046 680 220 UUNET Technologies, Inc. 18566 219 215 Covad Communications 6198 314 209 BellSouth Network Solutions, 6517 243 207 Yipes Communications, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 55555 RESERVED 136.162.254.0/24 7046 UUNET Technologies, 25780 UNALLOCATED 198.153.131.0/24 1 BBN Planet 25780 UNALLOCATED 198.153.231.0/24 1 BBN Planet 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.0.2.0/24 1103 SURFnet BV Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.26.98.0/24 1239 Sprint 192.31.126.0/23 1103 SURFnet BV 192.31.128.0/21 1103 SURFnet BV 192.44.0.0/19 702 UUNET Technologies, Inc. 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.14.0/24 5515 Sonera Finland Autonomous Sys 192.83.16.0/20 5515 Sonera Finland Autonomous Sys 192.83.25.0/24 5515 Sonera Finland Autonomous Sys 192.83.32.0/19 5515 Sonera Finland Autonomous Sys 192.83.96.0/22 5515 Sonera Finland Autonomous Sys 192.83.100.0/24 5515 Sonera Finland Autonomous Sys 192.91.198.0/24 2568 CTS Network Services 192.92.167.0/24 297 NASA Science Network 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.135.248.0/23 109 Cisco Systems, Inc. 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.152.213.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.195.253.0/24 237 Merit Network 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 7168 Northwest Link Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:6 /10:7 /11:13 /12:34 /13:85 /14:231 /15:408 /16:7203 /17:1431 /18:2592 /19:7576 /20:7155 /21:5081 /22:7761 /23:9421 /24:62582 /25:219 /26:186 /27:83 /28:87 /29:47 /30:92 /31:0 /32:42 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 628 1022 UUNET Technologies, Inc. 701 554 1997 UUNET Technologies, Inc. 3908 484 895 Supernet, Inc. 690 459 587 Merit Network 7066 380 475 Virginia Polytechnic Institut 7018 337 1293 AT&T 7046 306 680 UUNET Technologies, Inc. 7843 304 510 Adelphia Corp. 209 268 582 Qwest 1 249 805 BBN Planet 7029 246 261 Alltel Information Services, 6197 245 341 BellSouth Network Solutions, 11371 245 292 Rhythms NetConnections 3301 237 394 TeliaNet Sweden 6198 231 314 BellSouth Network Solutions, 6517 221 243 Yipes Communications, Inc. 3549 216 517 Global Crossing 18566 215 219 Covad Communications 1239 210 828 Sprint 1580 204 216 HQ, 5th Signal Command Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:513 13:10 15:2 17:6 20:2 24:777 25:1 32:40 38:8 40:6 44:1 57:13 61:226 62:200 63:1956 64:1212 65:1315 66:934 67:79 68:14 80:234 81:25 128:63 129:134 130:23 131:47 132:13 133:3 134:118 135:9 136:254 137:91 138:150 139:57 140:174 141:120 142:78 143:38 144:148 145:11 146:180 147:136 148:171 149:92 150:42 151:67 152:269 153:33 154:14 155:104 156:75 157:127 158:69 159:127 160:18 161:63 162:147 163:100 164:271 165:140 166:229 167:175 168:121 169:58 170:352 171:2 192:5499 193:2333 194:2102 195:804 196:409 198:3702 199:3232 200:2573 202:3154 203:4567 204:3250 205:2158 206:2579 207:2681 208:2652 209:2767 210:599 211:224 212:874 213:618 214:9 215:18 216:3001 217:466 218:20 End of report

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The Cidr Report
by CIDR Report 18 May '02

18 May '02

This is an auto-generated mail on Fri May 17 23:00:00 PDT 2002 It is not checked before it leaves my workstation. However, hopefully you will find this report interesting and will take the time to look through this to see if you can improve the amount of aggregation you perform. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. NEW: Check http://www.employees.org/~tbates/cidr-report-region.html for the regional version of this report. NEW: Check http://www.employees.org/~tbates/autnums.html for a complete list of autonomous system number to name mappings as used by the CIDR-Report. The report is split into sections: 0) General Status List the route table history for the last week, list any possibly bogus routes seen and give some status on ASes. 1) Gains by aggregating at the origin AS level This lists the "Top 30" players who if they decided to aggregate their announced classful prefixes at the origin AS level could make a significant difference in the reduction of the current size of the Internet routing table. This calculation does not take into account the inclusion of holes when forming an aggregate so it is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes. Please note that this is only a snapshot but does give some indication of ASes participating in CIDR. Clearly, it is generally a good thing to see a large amont of withdrawls. 3) Interesting aggregates Interesting here means not an aggregate made as a set of classful routes. Thanks to GX Networks for giving me access to their routing tables once a day. Please send any comments about this report directly to CIDR Report <cidr-report(a)cisco.com>. ------------------------------------------------------------------------------ CIDR REPORT for 17May02 0) General Status Table History ------------- Date Prefixes 100402 108550 110402 108701 120502 109917 130502 109712 140502 109853 150502 109940 160502 109828 170502 109785 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 10.1.1.1/32 from AS(65302) *** Bogus 10.1.1.1/32 from AS(65303) AS Summary ---------- 1) Gains by aggregating at the origin AS level --- 17May02 --- For the rest of the previous weeks gain information please see http://www.employees.org:80/~tbates/cidr-report.html 2) Weekly Delta Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report 3) Interesting aggregates Please see http://www.employees.org:80/~tbates/cidr-report.html for this part of the report

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Weekly Routing Table Report
by Routing Table Analysis 17 May '02

17 May '02

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 17 May, 2002 Analysis Summary ---------------- BGP routing table entries examined: 112248 Prefixes after maximum aggregation: 73217 Unique aggregates announced to Internet: 52555 Total ASes present in the Internet Routing Table: 13075 Origin-only ASes present in the Internet Routing Table: 11335 Origin ASes announcing only one prefix: 4978 Transit ASes present in the Internet Routing Table: 1740 Transit-only ASes present in the Internet Routing Table: 49 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 11 Non-routable prefixes present in the Routing Table: 1 Prefixes being announced from the IANA Reserved Address blocks: 40 Number of addresses announced to Internet: 1179664060 Equivalent to 70 /8s, 80 /16s and 62 /24s Percentage of available address space announced: 31.8 Percentage of allocated address space announced: 59.3 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 45313 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18016 Total APNIC prefixes after maximum aggregation: 10886 Prefixes being announced from the APNIC address blocks: 16528 Unique aggregates announced from the APNIC address blocks: 10235 APNIC Region origin ASes present in the Internet Routing Table: 1510 APNIC Region origin ASes announcing only one prefix: 497 APNIC Region transit ASes present in the Internet Routing Table: 270 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 84693696 Equivalent to 5 /8s, 12 /16s and 82 /24s Percentage of available APNIC address space announced: 62.6 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 75420 Total ARIN prefixes after maximum aggregation: 47997 Prefixes being announced from the ARIN address blocks: 53719 Unique aggregates announced from the ARIN address blocks: 16805 ARIN Region origin ASes present in the Internet Routing Table: 7725 ARIN Region origin ASes announcing only one prefix: 2446 ARIN Region transit ASes present in the Internet Routing Table: 754 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 192265156 Equivalent to 11 /8s, 117 /16s and 187 /24s Percentage of available ARIN address space announced: 71.6 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 - 26623 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 18812 Total RIPE prefixes after maximum aggregation: 14334 Prefixes being announced from the RIPE address blocks: 15512 Unique aggregates announced from the RIPE address blocks: 9747 RIPE Region origin ASes present in the Internet Routing Table: 3791 RIPE Region origin ASes announcing only one prefix: 2035 RIPE Region transit ASes present in the Internet Routing Table: 699 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 114854192 Equivalent to 6 /8s, 216 /16s and 137 /24s Percentage of available RIPE address space announced: 76.1 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1270 1223 914 Telstra Pty Ltd 4538 478 1194 17 China Education and Research 2907 432 1910 373 SINET Japan 703 403 337 324 UUNET Technologies, Inc. 2764 396 360 363 connect.com.au pty ltd 7474 308 291 206 Optus Communications Pty Ltd 4134 281 2068 95 Data Communications Bureau 17557 270 18 108 Pakistan Telecom 4755 265 109 75 Videsh Sanchar Nigam Ltd. Aut 9443 253 44 59 Primus Telecommunications 4766 224 1518 156 Korea Internet Exchange for " 9583 177 32 5 Satyam Infoway Ltd., 7539 152 218 146 TANet2, sponsored by NSC, TAI 9768 146 386 80 Korea Telecom 7657 131 22 87 The Internet Group Limited 4814 127 66 13 China Telecom (Group) - Beiji 17676 125 1954 10 XTAGE CORPORATION 4780 118 186 39 Digital United Inc. 4713 114 993 105 NTT Communications Corporatio 9800 114 186 22 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1035 2607 853 UUNET Technologies, Inc. 3301 394 908 346 TeliaNet Sweden 5515 268 776 176 Sonera Finland Autonomous Sys 3215 264 597 164 France Telecom / &Equant 680 231 2149 230 DFN-IP service G-WiN 3320 231 1947 178 Deutsche Telekom AG 1257 208 430 205 SWIPnet Swedish IP Network 5400 200 83 95 Concert European Core Network 786 182 1874 182 The JANET IP Service 719 168 289 120 LANLINK autonomous system 8708 141 22 136 Romania Data Systems S.A. 12302 131 9 49 MobiFon S.A. 2856 126 786 116 BTnet UK Regional network 3303 117 546 115 Swisscom Ltd 8297 116 4137 62 Teleglobe Autonomous System i 3269 115 694 71 TELECOM ITALIA 5511 111 191 92 France Telecom 517 101 226 97 KPNQwest Germany GmbH 2830 100 244 76 UUNET Dual-Homed customers 2874 97 84 37 Global One Services AB ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2089 8380 1458 UUNET Technologies, Inc. 7018 1293 7558 936 AT&T 3908 883 1644 486 Supernet, Inc. 1239 828 3412 669 Sprint 1 813 8185 459 BBN Planet 7046 690 872 476 UUNET Technologies, Inc. 852 664 1132 422 Telus Advanced Communications 4323 632 436 257 Time Warner Communications, I 209 583 1967 325 Qwest 7132 568 606 136 Southwestern Bell Internet Se 690 564 82 366 Merit Network 3549 515 854 320 Global Crossing 7843 503 364 57 Adelphia Corp. 7066 473 202 248 Virginia Polytechnic Institut 2914 399 2110 390 Verio, Inc. 705 373 100 265 UUNET Technologies, Inc. 3741 344 731 236 The Internet Solution 4293 342 84 265 Cable & Wireless USA 2149 341 191 283 Performance Systems, Inc. 6197 341 260 164 BellSouth Network Solutions, Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 478 461 China Education and Research 7843 503 446 Adelphia Corp. 7132 568 432 Southwestern Bell Internet Se 3908 883 397 Supernet, Inc. 4323 632 375 Time Warner Communications, I 7018 1293 357 AT&T 1221 1270 356 Telstra Pty Ltd 1 813 354 BBN Planet 11371 292 286 Rhythms NetConnections 4151 300 284 USDA 209 583 258 Qwest 6347 337 258 SAVVIS Communications Corpora 7029 261 246 Alltel Information Services, 852 664 242 Telus Advanced Communications 4355 276 238 EarthLink, Inc. 7066 473 225 Virginia Polytechnic Institut 7046 690 214 UUNET Technologies, Inc. 6198 313 209 BellSouth Network Solutions, 6517 240 206 Yipes Communications, Inc. 18566 209 205 Covad Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18189 UNALLOCATED 202.59.196.0/24 703 UUNET Technologies, 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 25810 UNALLOCATED 209.242.165.32/27 195 San Diego Supercompu 25810 UNALLOCATED 209.242.165.128/25 195 San Diego Supercompu 25810 UNALLOCATED 209.242.166.0/26 195 San Diego Supercompu 25810 UNALLOCATED 209.242.166.72/29 195 San Diego Supercompu 25810 UNALLOCATED 209.242.166.80/28 195 San Diego Supercompu 25810 UNALLOCATED 209.242.166.96/29 195 San Diego Supercompu 25810 UNALLOCATED 209.242.166.112/28 195 San Diego Supercompu 25810 UNALLOCATED 209.242.166.128/29 195 San Diego Supercompu 25810 UNALLOCATED 209.242.166.160/27 195 San Diego Supercompu Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.0.2.0/24 1103 SURFnet BV Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 153.147.0.0/16 3561 Cable & Wireless USA 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.31.126.0/23 1103 SURFnet BV 192.31.128.0/21 1103 SURFnet BV 192.44.0.0/19 702 UUNET Technologies, Inc. 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.14.0/24 5515 Sonera Finland Autonomous Sys 192.83.16.0/20 5515 Sonera Finland Autonomous Sys 192.83.25.0/24 5515 Sonera Finland Autonomous Sys 192.83.32.0/19 5515 Sonera Finland Autonomous Sys 192.83.96.0/22 5515 Sonera Finland Autonomous Sys 192.83.100.0/24 5515 Sonera Finland Autonomous Sys 192.91.198.0/24 2568 CTS Network Services 192.92.167.0/24 297 NASA Science Network 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.135.248.0/23 109 Cisco Systems, Inc. 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.152.213.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.195.253.0/24 237 Merit Network 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 7168 Northwest Link Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:6 /10:7 /11:13 /12:32 /13:85 /14:232 /15:407 /16:7200 /17:1442 /18:2569 /19:7517 /20:7112 /21:5054 /22:7740 /23:9388 /24:62606 /25:215 /26:188 /27:89 /28:98 /29:46 /30:113 /31:0 /32:69 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 658 2089 UUNET Technologies, Inc. 702 643 1035 UUNET Technologies, Inc. 3908 472 883 Supernet, Inc. 690 455 564 Merit Network 7066 378 473 Virginia Polytechnic Institut 7018 336 1293 AT&T 7046 321 690 UUNET Technologies, Inc. 7843 293 503 Adelphia Corp. 209 267 583 Qwest 1 251 813 BBN Planet 7029 246 261 Alltel Information Services, 6197 245 341 BellSouth Network Solutions, 11371 245 292 Rhythms NetConnections 3301 237 394 TeliaNet Sweden 6198 231 313 BellSouth Network Solutions, 4293 220 342 Cable & Wireless USA 6517 218 240 Yipes Communications, Inc. 3549 216 515 Global Crossing 1239 215 828 Sprint 18566 205 209 Covad Communications Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:508 13:10 15:2 17:7 20:2 24:768 25:1 32:40 38:8 40:6 44:1 57:13 61:219 62:202 63:1973 64:1197 65:1388 66:916 67:77 68:12 80:231 81:27 128:59 129:133 130:23 131:47 132:13 133:3 134:120 135:9 136:254 137:93 138:150 139:56 140:181 141:120 142:78 143:38 144:148 145:11 146:178 147:134 148:168 149:94 150:40 151:60 152:269 153:33 154:3 155:99 156:74 157:127 158:69 159:127 160:18 161:64 162:147 163:101 164:271 165:141 166:229 167:171 168:124 169:57 170:338 171:2 192:5441 193:2305 194:2108 195:797 196:410 198:3694 199:3243 200:2517 202:3135 203:4559 204:3270 205:2178 206:2618 207:2668 208:2817 209:2719 210:593 211:223 212:879 213:622 214:9 215:18 216:3023 217:457 218:17 End of report

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Weekly Routing Table Report
by Routing Table Analysis 10 May '02

10 May '02

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 10 May, 2002 Analysis Summary ---------------- BGP routing table entries examined: 111959 Prefixes after maximum aggregation: 73020 Unique aggregates announced to Internet: 53160 Total ASes present in the Internet Routing Table: 13046 Origin-only ASes present in the Internet Routing Table: 11316 Origin ASes announcing only one prefix: 4953 Transit ASes present in the Internet Routing Table: 1730 Transit-only ASes present in the Internet Routing Table: 48 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 2 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 43 Number of addresses announced to Internet: 1189483964 Equivalent to 70 /8s, 230 /16s and 21 /24s Percentage of available address space announced: 32.1 Percentage of allocated address space announced: 59.8 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 45114 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18181 Total APNIC prefixes after maximum aggregation: 10943 Prefixes being announced from the APNIC address blocks: 16673 Unique aggregates announced from the APNIC address blocks: 10306 APNIC Region origin ASes present in the Internet Routing Table: 1503 APNIC Region origin ASes announcing only one prefix: 489 APNIC Region transit ASes present in the Internet Routing Table: 268 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 84549184 Equivalent to 5 /8s, 10 /16s and 30 /24s Percentage of available APNIC address space announced: 62.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 74966 Total ARIN prefixes after maximum aggregation: 47733 Prefixes being announced from the ARIN address blocks: 53166 Unique aggregates announced from the ARIN address blocks: 16720 ARIN Region origin ASes present in the Internet Routing Table: 7708 ARIN Region origin ASes announcing only one prefix: 2427 ARIN Region transit ASes present in the Internet Routing Table: 753 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 191671748 Equivalent to 11 /8s, 108 /16s and 173 /24s Percentage of available ARIN address space announced: 71.4 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 - 26623 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 18812 Total RIPE prefixes after maximum aggregation: 14344 Prefixes being announced from the RIPE address blocks: 15478 Unique aggregates announced from the RIPE address blocks: 10333 RIPE Region origin ASes present in the Internet Routing Table: 3787 RIPE Region origin ASes announcing only one prefix: 2037 RIPE Region transit ASes present in the Internet Routing Table: 694 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 108967600 Equivalent to 6 /8s, 126 /16s and 182 /24s Percentage of available RIPE address space announced: 72.2 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1271 1210 937 Telstra Pty Ltd 4538 477 1194 17 China Education and Research 2907 433 1877 370 SINET Japan 703 408 337 327 UUNET Technologies, Inc. 2764 396 360 363 connect.com.au pty ltd 7474 305 291 207 Optus Communications Pty Ltd 4134 281 2068 95 Data Communications Bureau 9443 275 44 63 Primus Telecommunications 17557 275 19 111 Pakistan Telecom 4755 265 109 75 Videsh Sanchar Nigam Ltd. Aut 4766 222 1518 158 Korea Internet Exchange for " 4804 167 92 66 Microplex PTY LTD 9583 167 32 5 Satyam Infoway Ltd., 7539 157 235 151 TANet2, sponsored by NSC, TAI 9768 146 386 80 Korea Telecom 7657 129 22 89 The Internet Group Limited 17676 123 1953 10 XTAGE CORPORATION 4713 115 993 106 NTT Communications Corporatio 4814 114 64 6 China Telecom (Group) - Beiji 9800 114 186 22 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1040 2615 854 UUNET Technologies, Inc. 3301 393 908 345 TeliaNet Sweden 5515 276 761 173 Sonera Finland Autonomous Sys 3215 264 597 164 France Telecom / &Equant 680 231 2149 230 DFN-IP service G-WiN 3320 230 1947 177 Deutsche Telekom AG 1257 209 462 206 SWIPnet Swedish IP Network 5400 199 83 94 Concert European Core Network 786 182 1874 182 The JANET IP Service 719 165 289 119 LANLINK autonomous system 8708 141 22 136 Romania Data Systems S.A. 12302 130 9 49 MobiFon S.A. 2856 126 786 116 BTnet UK Regional network 8297 125 54 69 Teleglobe Autonomous System i 3303 115 546 114 Swisscom Ltd 3269 114 694 71 TELECOM ITALIA 5511 103 191 91 France Telecom 517 101 226 97 KPNQwest Germany GmbH 2830 98 227 74 UUNET Dual-Homed customers 2874 97 84 37 Global One Services AB ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2077 8381 1467 UUNET Technologies, Inc. 7018 1294 7557 942 AT&T 3908 865 1642 485 Supernet, Inc. 1239 852 3396 675 Sprint 1 809 8170 453 BBN Planet 7046 733 875 508 UUNET Technologies, Inc. 852 662 1148 422 Telus Advanced Communications 4323 632 436 256 Time Warner Communications, I 209 581 1935 321 Qwest 7132 570 605 138 Southwestern Bell Internet Se 690 539 75 348 Merit Network 3549 517 856 322 Global Crossing 7843 475 355 51 Adelphia Corp. 7066 473 202 248 Virginia Polytechnic Institut 2914 410 2143 397 Verio, Inc. 705 373 100 265 UUNET Technologies, Inc. 3741 344 731 236 The Internet Solution 2149 343 191 285 Performance Systems, Inc. 6197 340 245 164 BellSouth Network Solutions, 6347 338 370 80 SAVVIS Communications Corpora Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 477 460 China Education and Research 7132 570 432 Southwestern Bell Internet Se 7843 475 424 Adelphia Corp. 3908 865 380 Supernet, Inc. 4323 632 376 Time Warner Communications, I 1 809 356 BBN Planet 7018 1294 352 AT&T 1221 1271 334 Telstra Pty Ltd 11371 292 286 Rhythms NetConnections 4151 301 285 USDA 209 581 260 Qwest 6347 338 258 SAVVIS Communications Corpora 7029 260 245 Alltel Information Services, 852 662 240 Telus Advanced Communications 4355 270 232 EarthLink, Inc. 7046 733 225 UUNET Technologies, Inc. 7066 473 225 Virginia Polytechnic Institut 9443 275 212 Primus Telecommunications 6517 245 211 Yipes Communications, Inc. 1580 214 201 HQ, 5th Signal Command List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 153.147.0.0/16 3561 Cable & Wireless USA 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.31.126.0/23 1103 SURFnet BV 192.31.128.0/21 1103 SURFnet BV 192.44.0.0/19 702 UUNET Technologies, Inc. 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.1.0/24 5515 Sonera Finland Autonomous Sys 192.83.2.0/24 5515 Sonera Finland Autonomous Sys 192.83.8.0/21 5515 Sonera Finland Autonomous Sys 192.83.14.0/24 5515 Sonera Finland Autonomous Sys 192.83.16.0/20 5515 Sonera Finland Autonomous Sys 192.83.25.0/24 5515 Sonera Finland Autonomous Sys 192.83.32.0/19 5515 Sonera Finland Autonomous Sys 192.83.96.0/22 5515 Sonera Finland Autonomous Sys 192.83.100.0/24 5515 Sonera Finland Autonomous Sys 192.91.198.0/24 2568 CTS Network Services 192.92.167.0/24 297 NASA Science Network 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.135.248.0/23 109 Cisco Systems, Inc. 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.152.213.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.195.253.0/24 237 Merit Network 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 7168 Northwest Link Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:7 /10:7 /11:13 /12:32 /13:85 /14:231 /15:404 /16:7185 /17:1433 /18:2568 /19:7497 /20:7067 /21:5038 /22:7728 /23:9378 /24:62499 /25:218 /26:190 /27:80 /28:90 /29:50 /30:96 /31:0 /32:43 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 648 1040 UUNET Technologies, Inc. 701 640 2077 UUNET Technologies, Inc. 3908 454 865 Supernet, Inc. 690 447 539 Merit Network 7066 381 473 Virginia Polytechnic Institut 7046 359 733 UUNET Technologies, Inc. 7018 339 1294 AT&T 7843 279 475 Adelphia Corp. 209 269 581 Qwest 7029 245 260 Alltel Information Services, 11371 245 292 Rhythms NetConnections 6197 244 340 BellSouth Network Solutions, 1 243 809 BBN Planet 1239 240 852 Sprint 3301 236 393 TeliaNet Sweden 6198 230 312 BellSouth Network Solutions, 6517 223 245 Yipes Communications, Inc. 3549 216 517 Global Crossing 1580 202 214 HQ, 5th Signal Command 3215 199 264 France Telecom / &Equant Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:502 13:10 15:2 17:7 20:2 24:768 25:1 32:67 38:8 40:6 44:1 57:13 61:200 62:198 63:2010 64:1218 65:1324 66:924 67:70 68:10 80:242 81:21 128:59 129:138 130:23 131:48 132:13 133:3 134:120 135:9 136:317 137:93 138:150 139:53 140:183 141:120 142:82 143:38 144:148 145:12 146:177 147:135 148:166 149:93 150:41 151:60 152:288 153:33 154:3 155:99 156:74 157:125 158:69 159:130 160:18 161:64 162:149 163:102 164:272 165:127 166:228 167:170 168:124 169:55 170:306 171:2 192:5466 193:2329 194:2109 195:805 196:409 198:3752 199:3215 200:2463 202:3157 203:4552 204:3264 205:2164 206:2570 207:2664 208:2626 209:2713 210:682 211:238 212:867 213:613 214:9 215:18 216:3014 217:453 218:20 End of report

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

03 May '02

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 03 May, 2002 Analysis Summary ---------------- BGP routing table entries examined: 111873 Prefixes after maximum aggregation: 72897 Unique aggregates announced to Internet: 53102 Total ASes present in the Internet Routing Table: 13028 Origin-only ASes present in the Internet Routing Table: 11298 Origin ASes announcing only one prefix: 4965 Transit ASes present in the Internet Routing Table: 1730 Transit-only ASes present in the Internet Routing Table: 47 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 4 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 43 Number of addresses announced to Internet: 1188794684 Equivalent to 70 /8s, 219 /16s and 145 /24s Percentage of available address space announced: 32.1 Percentage of allocated address space announced: 59.8 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 45077 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18140 Total APNIC prefixes after maximum aggregation: 10897 Prefixes being announced from the APNIC address blocks: 16645 Unique aggregates announced from the APNIC address blocks: 10272 APNIC Region origin ASes present in the Internet Routing Table: 1503 APNIC Region origin ASes announcing only one prefix: 493 APNIC Region transit ASes present in the Internet Routing Table: 269 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 84391488 Equivalent to 5 /8s, 7 /16s and 182 /24s Percentage of available APNIC address space announced: 62.4 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 74929 Total ARIN prefixes after maximum aggregation: 47684 Prefixes being announced from the ARIN address blocks: 53032 Unique aggregates announced from the ARIN address blocks: 16682 ARIN Region origin ASes present in the Internet Routing Table: 7694 ARIN Region origin ASes announcing only one prefix: 2430 ARIN Region transit ASes present in the Internet Routing Table: 752 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 191550660 Equivalent to 11 /8s, 106 /16s and 212 /24s Percentage of available ARIN address space announced: 71.4 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 - 26623 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 18804 Total RIPE prefixes after maximum aggregation: 14316 Prefixes being announced from the RIPE address blocks: 15483 Unique aggregates announced from the RIPE address blocks: 10336 RIPE Region origin ASes present in the Internet Routing Table: 3784 RIPE Region origin ASes announcing only one prefix: 2042 RIPE Region transit ASes present in the Internet Routing Table: 692 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 108931888 Equivalent to 6 /8s, 126 /16s and 43 /24s Percentage of available RIPE address space announced: 72.1 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1277 1210 941 Telstra Pty Ltd 4538 477 1194 17 China Education and Research 2907 434 1878 371 SINET Japan 703 410 336 327 UUNET Technologies, Inc. 2764 397 362 364 connect.com.au pty ltd 7474 307 291 209 Optus Communications Pty Ltd 4134 280 2036 94 Data Communications Bureau 9443 274 44 63 Primus Telecommunications 17557 269 18 108 Pakistan Telecom 4755 248 109 74 Videsh Sanchar Nigam Ltd. Aut 4766 221 1518 158 Korea Internet Exchange for " 9583 169 32 5 Satyam Infoway Ltd., 4804 167 92 66 Microplex PTY LTD 7539 165 238 159 TANet2, sponsored by NSC, TAI 9768 146 386 80 Korea Telecom 7657 126 22 89 The Internet Group Limited 4814 125 64 5 China Telecom (Group) - Beiji 17676 122 1952 9 XTAGE CORPORATION 4713 115 993 106 NTT Communications Corporatio 4780 113 186 39 Digital United Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1037 2580 851 UUNET Technologies, Inc. 3301 394 924 346 TeliaNet Sweden 5515 275 761 173 Sonera Finland Autonomous Sys 3215 264 597 164 France Telecom / &Equant 680 231 2149 230 DFN-IP service G-WiN 3320 230 1947 177 Deutsche Telekom AG 1257 210 462 207 SWIPnet Swedish IP Network 5400 198 82 93 Concert European Core Network 786 182 1874 182 The JANET IP Service 8708 143 22 137 Romania Data Systems S.A. 719 136 270 96 LANLINK autonomous system 12302 130 9 49 MobiFon S.A. 2856 126 786 116 BTnet UK Regional network 8297 122 53 67 Teleglobe Autonomous System i 3303 117 546 116 Swisscom Ltd 3269 116 694 71 TELECOM ITALIA 5536 107 9 39 Internet Egypt Network 2118 106 109 20 EUnet/RELCOM Autonomous Syste 5511 106 191 93 France Telecom 517 101 226 97 KPNQwest Germany GmbH ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2055 8409 1469 UUNET Technologies, Inc. 7018 1280 7524 935 AT&T 3908 874 1661 486 Supernet, Inc. 1239 824 3389 661 Sprint 1 812 8188 456 BBN Planet 7046 808 877 582 UUNET Technologies, Inc. 852 662 1148 421 Telus Advanced Communications 4323 632 436 256 Time Warner Communications, I 209 583 1984 321 Qwest 7132 569 604 140 Southwestern Bell Internet Se 3549 519 856 321 Global Crossing 690 493 71 312 Merit Network 7066 473 202 248 Virginia Polytechnic Institut 7843 456 349 48 Adelphia Corp. 2914 417 2145 404 Verio, Inc. 705 377 100 268 UUNET Technologies, Inc. 2149 346 191 288 Performance Systems, Inc. 6197 346 342 135 BellSouth Network Solutions, 3741 344 731 236 The Internet Solution 6347 336 370 81 SAVVIS Communications Corpora Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 477 460 China Education and Research 7132 569 429 Southwestern Bell Internet Se 7843 456 408 Adelphia Corp. 3908 874 388 Supernet, Inc. 4323 632 376 Time Warner Communications, I 1 812 356 BBN Planet 7018 1280 345 AT&T 1221 1277 336 Telstra Pty Ltd 4151 304 288 USDA 11371 292 286 Rhythms NetConnections 209 583 262 Qwest 6347 336 255 SAVVIS Communications Corpora 7029 262 247 Alltel Information Services, 852 662 241 Telus Advanced Communications 7046 808 226 UUNET Technologies, Inc. 7066 473 225 Virginia Polytechnic Institut 4355 259 223 EarthLink, Inc. 6197 346 211 BellSouth Network Solutions, 9443 274 211 Primus Telecommunications 6517 244 210 Yipes Communications, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 25707 UNALLOCATED 63.167.148.0/24 7018 AT&T 112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 25733 UNALLOCATED 208.33.184.0/22 1239 Sprint Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 153.147.0.0/16 3561 Cable & Wireless USA 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.31.126.0/23 1103 SURFnet BV 192.31.128.0/21 1103 SURFnet BV 192.44.0.0/19 702 UUNET Technologies, Inc. 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.1.0/24 5515 Sonera Finland Autonomous Sys 192.83.2.0/24 5515 Sonera Finland Autonomous Sys 192.83.8.0/21 5515 Sonera Finland Autonomous Sys 192.83.14.0/24 5515 Sonera Finland Autonomous Sys 192.83.16.0/20 5515 Sonera Finland Autonomous Sys 192.83.25.0/24 5515 Sonera Finland Autonomous Sys 192.83.32.0/19 5515 Sonera Finland Autonomous Sys 192.83.96.0/22 5515 Sonera Finland Autonomous Sys 192.83.100.0/24 5515 Sonera Finland Autonomous Sys 192.91.198.0/24 2568 CTS Network Services 192.92.167.0/24 297 NASA Science Network 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.135.248.0/23 109 Cisco Systems, Inc. 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.152.213.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.195.253.0/24 237 Merit Network 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 7168 Northwest Link Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:8 /10:7 /11:13 /12:32 /13:85 /14:231 /15:404 /16:7186 /17:1426 /18:2605 /19:7491 /20:7070 /21:5029 /22:7729 /23:9367 /24:62392 /25:224 /26:194 /27:86 /28:92 /29:53 /30:92 /31:0 /32:37 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 648 1037 UUNET Technologies, Inc. 701 612 2055 UUNET Technologies, Inc. 3908 453 874 Supernet, Inc. 7046 435 808 UUNET Technologies, Inc. 690 432 493 Merit Network 7066 381 473 Virginia Polytechnic Institut 7018 331 1280 AT&T 209 275 583 Qwest 7843 267 456 Adelphia Corp. 7029 247 262 Alltel Information Services, 6197 246 346 BellSouth Network Solutions, 11371 245 292 Rhythms NetConnections 1 243 812 BBN Planet 3301 236 394 TeliaNet Sweden 6198 228 304 BellSouth Network Solutions, 6517 222 244 Yipes Communications, Inc. 3549 219 519 Global Crossing 1239 213 824 Sprint 1580 202 214 HQ, 5th Signal Command 3215 199 264 France Telecom / &Equant Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:2 4:2 9:1 12:497 13:10 15:2 17:7 20:2 24:760 25:1 32:67 38:8 40:6 44:1 57:13 61:202 62:197 63:2087 64:1212 65:1284 66:881 67:68 68:9 80:239 81:17 128:59 129:133 130:23 131:47 132:12 133:3 134:121 135:9 136:313 137:93 138:149 139:49 140:186 141:119 142:80 143:38 144:149 145:12 146:225 147:135 148:163 149:92 150:41 151:60 152:308 153:33 154:3 155:99 156:76 157:125 158:69 159:130 160:24 161:56 162:151 163:103 164:271 165:124 166:224 167:170 168:122 169:54 170:302 171:2 192:5449 193:2309 194:2126 195:830 196:438 198:3737 199:3208 200:2435 202:3163 203:4535 204:3281 205:2164 206:2564 207:2647 208:2602 209:2718 210:654 211:212 212:874 213:597 214:9 215:18 216:3012 217:458 218:20 End of report

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