July 2001 - routing-wg - mailman.ripe.net

The Cidr Report
by CIDR Report 28 Jul '01

28 Jul '01

This is an auto-generated mail on Fri Jul 27 23:00:00 PDT 2001 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. 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is possible even larger reduction should be possible. 2) Weekly Delta A summary of the last weeks changes in terms of withdrawn and added routes.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>. 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. ------------------------------------------------------------------------------ CIDR REPORT for 27Jul01 0) General Status Table History ------------- Date Prefixes 200701 100950 210701 101113 220701 101068 230701 101044 240701 101039 250701 101495 260701 101472 270701 101541 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- *** Bogus 82.105.0.0/16 from AS3269 *** Bogus 82.105.128.0/17 from AS3269 AS Summary ---------- Number of ASes in routing system: 11297 Number of ASes announcing only one prefix: 6733 (3865 cidr, 2868 classful) Largest number of cidr routes: 869 announced by AS701 Largest number of classful routes: 1414 announced by AS701 1) Gains by aggregating at the origin AS level --- 27Jul01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1330 989 341 25.6% Telstra Pty Ltd AS701 1414 1199 215 15.2% UUNET Technologies, Inc. AS4293 385 276 109 28.3% Cable & Wireless USA AS6595 167 60 107 64.1% DoD Education Activity Networ AS6429 200 101 99 49.5% RdC Internet AS13999 104 8 96 92.3% Mega Cable S.A. de C.V. AS705 237 142 95 40.1% UUNET Technologies, Inc. AS4755 215 121 94 43.7% VSNL India AS7018 723 633 90 12.4% AT&T AS2551 429 342 87 20.3% NETCOM On-Line Communication AS4151 164 80 84 51.2% USDA AS8013 295 216 79 26.8% PSINet Ltd. Canada AS724 232 159 73 31.5% DLA Systems Automation Center AS577 247 174 73 29.6% Bell Canada AS7046 314 247 67 21.3% UUNET Technologies, Inc. AS16473 127 60 67 52.8% Bell South AS6471 124 60 64 51.6% ENTEL CHILE S.A. AS3464 152 90 62 40.8% Alabama SuperComputer Network AS4200 120 60 60 50.0% Apex Global Information Servi AS1239 461 402 59 12.8% Sprint ICM-Inria AS16758 63 6 57 90.5% IKON Office Solutions AS12302 89 33 56 62.9% MobiFon S.A. AS1 567 511 56 9.9% BBN Planet AS226 143 90 53 37.1% Los Nettos AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS3908 200 149 51 25.5% Supernet, Inc. AS17561 112 61 51 45.5% Internet Service West Austral AS852 214 164 50 23.4% Telus Advanced Communications AS9842 54 5 49 90.7% Lotte Data Communication Comp AS4323 235 186 49 20.9% Time Warner Communications, I 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 Analysis 26 Jul '01

26 Jul '01

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 27 Jul, 2001 Analysis Summary ---------------- BGP routing table entries examined: 105607 Origin ASes present in the Internet Routing Table: 11377 Origin ASes announcing only one prefix: 4157 Transit ASes present in the Internet Routing Table: 1500 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 55 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 18 Number of addresses announced to Internet: 1246191288 Equivalent to 74 /8s, 71 /16s and 94 /24s Percentage of available address space announced: 33.6 Percentage of allocated address space announced: 65.3 Percentage of available address space allocated: 51.5 Total number of prefixes smaller than registry allocations: 71945 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15682 Prefixes being announced from the APNIC address blocks: 14143 APNIC Region origin ASes present in the Internet Routing Table: 1330 APNIC Region origin ASes announcing only one prefix: 460 APNIC Region transit ASes present in the Internet Routing Table: 222 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 74489733 Equivalent to 4 /8s, 112 /16s and 159 /24s Percentage of available APNIC address space announced: 73.2 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72516 Prefixes being announced from the ARIN address blocks: 52358 ARIN Region origin ASes present in the Internet Routing Table: 6855 ARIN Region origin ASes announcing only one prefix: 2012 ARIN Region transit ASes present in the Internet Routing Table: 707 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 12 Number of ARIN addresses announced to Internet: 200791200 Equivalent to 11 /8s, 247 /16s and 212 /24s Percentage of available ARIN address space announced: 79.8 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17406 Prefixes being announced from the RIPE address blocks: 13497 RIPE Region origin ASes present in the Internet Routing Table: 3208 RIPE Region origin ASes announcing only one prefix: 1685 RIPE Region transit ASes present in the Internet Routing Table: 573 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 102374143 Equivalent to 6 /8s, 26 /16s and 26 /24s Percentage of available RIPE address space announced: 67.8 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 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 Description 1221 1669 1330 Telstra 2764 442 362 connect.com.au pty ltd 703 402 367 UUNET Technologies, Inc. 2907 367 1784 SINET Japan 4755 298 163 VSNL India 7474 245 293 Optus Communications 4134 233 1618 Data Communications Bureau 7539 209 175 TANet2, sponsored by NSC, TAI 4766 176 1336 KORnet Powered BY Korea Telec 7545 145 21 TPG Internet Pty Ltd 9443 143 40 INTERNETPRIMUS-AS-A 4786 129 17 NetConnect Communications Pty 4763 119 69 Telstra New Zealand 17561 115 151 Internet service provision to 7586 114 17 Paradox Digital Pty. Ltd 4812 111 279 Shanghai Telecom Company 7657 111 22 The Internet Group Limited 4713 109 878 NTT-OCNET 4740 109 15 Ozemail 4732 108 358 DDI Corporation RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 680 1831 UUNET Technologies, Inc. 3301 430 918 TeliaNet Sweden 15870 412 12 Global Center Frankfurt 1257 280 520 Swipnet AB 1270 244 869 UUNET Germany 680 229 2069 Deutschef Forschurgsnetz 3215 227 496 RAIN 15878 202 8 Global Center Paris 719 185 291 LANLINK 786 184 1890 JANET IP Service 5515 176 654 Sonera Finland 3320 175 1411 Deutsche Telekom AG 8708 153 15 Romania Data System 5400 139 66 Concert Internet Plus Europea 3303 131 576 Swisscom 517 125 272 Xlink 2856 123 776 BTnet UK Regional network 5549 117 66 Seicom Computer Gmb 8503 108 3 PCNET - PCNET DATA Network 1267 107 1989 IUnet S.p.A ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2309 8321 UUNET Technologies, Inc. 7018 980 7031 AT&T 1 902 8699 BBN Planet 7046 755 1072 UUNET Technologies, Inc. 1239 694 3296 Sprint ICM-Inria 2914 516 2319 Verio, Inc. 690 507 77 Merit Network 4293 484 98 Cable & Wireless USA 209 476 1868 Qwest 2551 452 651 NETCOM On-Line Communication 3561 430 2430 Cable & Wireless USA 3908 415 487 Supernet, Inc. 2548 413 1010 Digital Express Group, Inc. 2149 408 345 Performance Systems, Inc. 18994 392 10 Global Crossing 3549 357 815 Global Crossing 4323 339 314 Time Warner Communications, I 11371 337 100 Rhythms NetConnections 3967 334 454 Exodus Communication 15290 327 340 AT&T Canada IES Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2309 8321 UUNET Technologies, Inc. 1221 1669 1330 Telstra 7018 980 7031 AT&T 1 902 8699 BBN Planet 7046 755 1072 UUNET Technologies, Inc. 1239 694 3296 Sprint ICM-Inria 702 680 1831 UUNET Technologies, Inc. 2914 516 2319 Verio, Inc. 690 507 77 Merit Network 4293 484 98 Cable & Wireless USA 209 476 1868 Qwest 2551 452 651 NETCOM On-Line Communication 2764 442 362 connect.com.au pty ltd 3301 430 918 TeliaNet Sweden 3561 430 2430 Cable & Wireless USA 3908 415 487 Supernet, Inc. 2548 413 1010 Digital Express Group, Inc. 15870 412 12 Global Center Frankfurt 2149 408 345 Performance Systems, Inc. 703 402 367 UUNET Technologies, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 17680 UNALLOCATED 61.213.48.0/20 10009 ARE Works,Inc. 18541 UNALLOCATED 63.166.66.0/24 1239 Sprint ICM-Inria 18541 UNALLOCATED 63.169.205.0/24 1239 Sprint ICM-Inria 19714 UNALLOCATED 64.166.88.0/24 701 UUNET Technologies, 65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services 19714 UNALLOCATED 65.200.78.0/23 701 UUNET Technologies, 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 19062 UNALLOCATED 192.197.96.0/20 1691 BCTEL Advanced Commu 65460 PRIVATE 192.231.11.0/24 7018 AT&T 5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies, 20938 UNALLOCATED 195.13.38.0/23 8246 Internet Technologie 17803 UNALLOCATED 202.68.128.0/19 4755 VSNL India 17803 UNALLOCATED 202.68.134.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.135.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.136.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.138.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.139.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.140.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.145.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.146.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.147.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.148.0/24 4755 VSNL India 17803 UNALLOCATED 202.68.150.0/24 4755 VSNL India 17803 UNALLOCATED 202.157.190.0/23 4755 VSNL India 17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET 4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net 21637 UNALLOCATED 204.1.98.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.106.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.107.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.108.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.1.109.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.68.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.76.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.94.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.95.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.96.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.100.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.104.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.106.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.107.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.109.0/24 2914 Verio, Inc. 21637 UNALLOCATED 204.27.115.0/24 2914 Verio, Inc. 20413 UNALLOCATED 204.108.128.0/17 6347 SAVVIS Communication 19551 UNALLOCATED 204.229.224.0/22 6226 US West Communicatio 20413 UNALLOCATED 207.8.234.0/24 6347 SAVVIS Communication 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 20413 UNALLOCATED 207.106.119.0/24 6347 SAVVIS Communication 19322 UNALLOCATED 208.44.17.0/24 209 Qwest 21879 UNALLOCATED 208.253.207.96/27 16467 NextWeb, Inc. 21879 UNALLOCATED 209.81.62.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 82.105.0.0/16 3269 TELECOM ITALIA 82.105.128.0/17 3269 TELECOM ITALIA 99.0.0.0/8 9638 National Agricultural Coopera 128.65.0.0/16 3463 ACES Research Inc 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 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 US DOD NIC Unregistered 172.32.1.0/25 1221 Telstra 172.122.0.0/16 701 UUNET Technologies, Inc. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:5 /10:6 /11:9 /12:32 /13:82 /14:218 /15:362 /16:6921 /17:1189 /18:2252 /19:6762 /20:5492 /21:4560 /22:6837 /23:8663 /24:59919 /25:291 /26:363 /27:430 /28:435 /29:352 /30:336 /31:1 /32:70 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 1221 1516 1669 Telstra 701 1444 2309 UUNET Technologies, Inc. 7046 589 755 UUNET Technologies, Inc. 690 504 507 Merit Network 7018 500 980 AT&T 4293 468 484 Cable & Wireless USA 702 429 680 UUNET Technologies, Inc. 1 423 902 BBN Planet 15870 408 412 Global Center Frankfurt 2764 397 442 connect.com.au pty ltd 18994 390 392 Global Crossing 1239 380 694 Sprint ICM-Inria 209 356 476 Qwest 2551 342 452 NETCOM On-Line Communication 703 333 402 UUNET Technologies, Inc. 11371 324 337 Rhythms NetConnections 3908 320 415 Supernet, Inc. 18993 305 309 Global Crossing 2548 303 413 Digital Express Group, Inc. 4323 290 339 Time Warner Communications, I Advertised prefixes smaller than registry allocations (per /8 block) -------------------------------------------------------------------- 4:1 6:12 9:6 12:585 13:13 15:11 17:13 20:7 24:850 26:1 32:43 35:3 38:20 40:2 43:4 44:10 45:1 47:40 52:2 53:4 55:1 56:5 57:15 61:137 62:196 63:2520 64:2753 65:1036 66:773 80:44 128:61 129:182 130:54 131:67 132:42 133:1 134:240 135:13 136:37 137:180 138:233 139:86 140:259 141:225 142:118 143:98 144:209 145:32 146:195 147:179 148:250 149:124 150:63 151:264 152:965 153:40 154:16 155:141 156:92 157:156 158:114 159:83 160:93 161:146 162:157 163:248 164:206 165:252 166:262 167:173 168:208 169:54 170:449 171:20 172:1 192:32 193:2624 194:2768 195:1046 196:3 198:6 199:3942 200:2751 202:3775 203:5804 204:4404 205:2948 206:4144 207:3688 208:5215 209:4415 210:795 211:335 212:1121 213:711 216:4760 217:461 218:3 End of report

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The Cidr Report
by CIDR Report 21 Jul '01

21 Jul '01

This is an auto-generated mail on Fri Jul 20 23:00:00 PDT 2001 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. 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>. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. ------------------------------------------------------------------------------ CIDR REPORT for 20Jul01 0) General Status Table History ------------- Date Prefixes 130701 100848 140701 100609 150701 101337 160701 100485 170701 100311 180701 100565 190701 100739 200701 100950 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 11241 Number of ASes announcing only one prefix: 6694 (3840 cidr, 2854 classful) Largest number of cidr routes: 865 announced by AS701 Largest number of classful routes: 1414 announced by AS701 1) Gains by aggregating at the origin AS level --- 20Jul01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1347 1001 346 25.7% Telstra Pty Ltd AS701 1414 1199 215 15.2% UUNET Technologies, Inc. AS4293 391 280 111 28.4% Cable & Wireless USA AS6595 169 59 110 65.1% DoD Education Activity Networ AS6429 199 102 97 48.7% RdC Internet AS13999 104 8 96 92.3% Mega Cable S.A. de C.V. AS705 232 137 95 40.9% UUNET Technologies, Inc. AS7018 726 634 92 12.7% AT&T AS4755 211 121 90 42.7% VSNL India AS4151 161 79 82 50.9% USDA AS8013 298 217 81 27.2% PSINet Ltd. Canada AS577 246 173 73 29.7% Bell Canada AS724 230 158 72 31.3% DLA Systems Automation Center AS7046 313 249 64 20.4% UUNET Technologies, Inc. AS6471 122 58 64 52.5% ENTEL CHILE S.A. AS16473 121 58 63 52.1% Bell South AS4200 131 70 61 46.6% Apex Global Information Servi AS3464 148 91 57 38.5% Alabama SuperComputer Network AS16758 63 6 57 90.5% IKON Office Solutions AS1 569 513 56 9.8% BBN Planet AS1239 447 392 55 12.3% Sprint ICM-Inria AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS3908 203 152 51 25.1% Supernet, Inc. AS17561 112 61 51 45.5% Internet Service West Austral AS852 213 163 50 23.5% Telus Advanced Communications AS4323 235 185 50 21.3% Time Warner Communications, I AS2149 320 270 50 15.6% Performance Systems, Inc. AS12302 83 33 50 60.2% MobiFon S.A. AS703 268 220 48 17.9% UUNET Technologies, Inc. AS5106 81 33 48 59.3% Ameritech Advanced Data Servi 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 Analysis 19 Jul '01

19 Jul '01

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 Jul, 2001 Analysis Summary ---------------- BGP routing table entries examined: 104573 Origin ASes present in the Internet Routing Table: 11312 Origin ASes announcing only one prefix: 4160 Transit ASes present in the Internet Routing Table: 1514 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 15 Illegal AS announcements present in the Routing Table: 19 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 16 Number of addresses announced to Internet: 1240384498 Equivalent to 73 /8s, 238 /16s and 195 /24s Percentage of available address space announced: 33.5 Percentage of allocated address space announced: 65.0 Percentage of available address space allocated: 51.5 Total number of prefixes smaller than registry allocations: 71049 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15502 Prefixes being announced from the APNIC address blocks: 13946 APNIC Region origin ASes present in the Internet Routing Table: 1329 APNIC Region origin ASes announcing only one prefix: 463 APNIC Region transit ASes present in the Internet Routing Table: 223 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 74027962 Equivalent to 4 /8s, 105 /16s and 147 /24s Percentage of available APNIC address space announced: 72.8 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 71715 Prefixes being announced from the ARIN address blocks: 51695 ARIN Region origin ASes present in the Internet Routing Table: 6798 ARIN Region origin ASes announcing only one prefix: 2013 ARIN Region transit ASes present in the Internet Routing Table: 710 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 13 Number of ARIN addresses announced to Internet: 201112880 Equivalent to 11 /8s, 252 /16s and 189 /24s Percentage of available ARIN address space announced: 79.9 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17353 Prefixes being announced from the RIPE address blocks: 13448 RIPE Region origin ASes present in the Internet Routing Table: 3195 RIPE Region origin ASes announcing only one prefix: 1684 RIPE Region transit ASes present in the Internet Routing Table: 582 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 101605394 Equivalent to 6 /8s, 14 /16s and 96 /24s Percentage of available RIPE address space announced: 67.3 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 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 Description 1221 1673 1346 Telstra 2764 433 345 connect.com.au pty ltd 703 401 383 UUNET Technologies, Inc. 2907 367 1784 SINET Japan 4755 283 158 VSNL India 7474 242 292 Optus Communications 4134 232 1610 Data Communications Bureau 7539 207 165 TANet2, sponsored by NSC, TAI 4766 176 1336 KORnet Powered BY Korea Telec 7545 145 21 TPG Internet Pty Ltd 9443 134 38 INTERNETPRIMUS-AS-A 4786 130 17 NetConnect Communications Pty 4763 118 69 Telstra New Zealand 17561 115 151 Internet service provision to 7657 113 22 The Internet Group Limited 7586 112 17 Paradox Digital Pty. Ltd 4812 111 279 Shanghai Telecom Company 4740 110 15 Ozemail 4713 109 878 NTT-OCNET 9583 108 60 Satyam Infoway Ltd., RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 679 1846 UUNET Technologies, Inc. 3301 430 918 TeliaNet Sweden 15870 417 12 Global Center Frankfurt 1257 280 504 Swipnet AB 1270 245 868 UUNET Germany 680 232 2069 Deutschef Forschurgsnetz 3215 220 495 RAIN 15878 202 8 Global Center Paris 719 187 291 LANLINK 786 184 1890 JANET IP Service 5515 174 654 Sonera Finland 3320 170 1410 Deutsche Telekom AG 8708 151 15 Romania Data System 5400 139 66 Concert Internet Plus Europea 3303 130 575 Swisscom 517 124 272 Xlink 2856 123 776 BTnet UK Regional network 5549 117 66 Seicom Computer Gmb 1267 107 1989 IUnet S.p.A 8503 106 3 PCNET - PCNET DATA Network ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2318 8313 UUNET Technologies, Inc. 7018 971 6988 AT&T 1 906 8715 BBN Planet 7046 744 1055 UUNET Technologies, Inc. 1239 686 3295 Sprint ICM-Inria 690 525 94 Merit Network 2914 518 2317 Verio, Inc. 4293 491 99 Cable & Wireless USA 209 473 1883 Qwest 3561 433 2450 Cable & Wireless USA 3908 420 583 Supernet, Inc. 2548 415 1012 Digital Express Group, Inc. 2149 414 377 Performance Systems, Inc. 18994 397 10 Global Crossing 4323 361 300 Time Warner Communications, I 3549 351 809 Global Crossing 11371 337 100 Rhythms NetConnections 3967 331 450 Exodus Communication 15290 321 340 AT&T Canada IES 6347 315 353 SAVVIS Communications Corpora Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2318 8313 UUNET Technologies, Inc. 1221 1673 1346 Telstra 7018 971 6988 AT&T 1 906 8715 BBN Planet 7046 744 1055 UUNET Technologies, Inc. 1239 686 3295 Sprint ICM-Inria 702 679 1846 UUNET Technologies, Inc. 690 525 94 Merit Network 2914 518 2317 Verio, Inc. 4293 491 99 Cable & Wireless USA 209 473 1883 Qwest 2764 433 345 connect.com.au pty ltd 3561 433 2450 Cable & Wireless USA 3301 430 918 TeliaNet Sweden 3908 420 583 Supernet, Inc. 15870 417 12 Global Center Frankfurt 2548 415 1012 Digital Express Group, Inc. 2149 414 377 Performance Systems, Inc. 703 401 383 UUNET Technologies, Inc. 18994 397 10 Global Crossing List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18541 UNALLOCATED 63.166.66.0/24 1239 Sprint ICM-Inria 18541 UNALLOCATED 63.169.205.0/24 1239 Sprint ICM-Inria 578 UNALLOCATED 64.230.242.0/28 577 Bell Canada 578 UNALLOCATED 64.230.242.16/28 577 Bell Canada 65501 PRIVATE 64.243.116.0/24 16890 K&G Network Services 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 19062 UNALLOCATED 192.197.96.0/20 1691 BCTEL Advanced Commu 65460 PRIVATE 192.231.11.0/24 7018 AT&T 5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies, 17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET 4831 UNALLOCATED 202.172.32.0/20 9740 Cable & Wireless Net 19551 UNALLOCATED 204.229.224.0/22 6226 US West Communicatio 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 19322 UNALLOCATED 208.44.17.0/24 209 Qwest 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 99.0.0.0/8 9638 National Agricultural Coopera 128.65.0.0/16 3463 ACES Research Inc 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 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 US DOD NIC Unregistered 172.32.1.0/25 1221 Telstra 172.122.0.0/16 701 UUNET Technologies, Inc. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:5 /10:6 /11:8 /12:32 /13:82 /14:215 /15:353 /16:6914 /17:1177 /18:2244 /19:6753 /20:5408 /21:4515 /22:6806 /23:8631 /24:59130 /25:289 /26:361 /27:429 /28:431 /29:355 /30:336 /31:1 /32:72 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 1221 1518 1673 Telstra 701 1454 2318 UUNET Technologies, Inc. 7046 577 744 UUNET Technologies, Inc. 690 521 525 Merit Network 7018 490 971 AT&T 4293 475 491 Cable & Wireless USA 702 428 679 UUNET Technologies, Inc. 1 426 906 BBN Planet 15870 413 417 Global Center Frankfurt 18994 395 397 Global Crossing 2764 389 433 connect.com.au pty ltd 1239 369 686 Sprint ICM-Inria 209 351 473 Qwest 703 331 401 UUNET Technologies, Inc. 11371 324 337 Rhythms NetConnections 3908 319 420 Supernet, Inc. 4323 314 361 Time Warner Communications, I 18993 308 312 Global Crossing 2548 304 415 Digital Express Group, Inc. 8013 278 308 PSINet Ltd. Canada Advertised prefixes smaller than registry allocations (per /8 block) -------------------------------------------------------------------- 4:1 9:6 12:579 13:13 15:11 17:11 20:7 24:846 26:1 32:42 35:4 38:30 40:2 43:4 44:5 45:1 47:40 52:2 53:4 55:1 56:5 57:15 61:117 62:197 63:2512 64:2746 65:1001 66:758 80:47 128:61 129:188 130:54 131:67 132:41 133:1 134:231 135:11 136:36 137:178 138:233 139:86 140:257 141:225 142:113 143:98 144:198 145:32 146:199 147:180 148:239 149:124 150:63 151:261 152:984 153:40 154:21 155:144 156:92 157:156 158:113 159:82 160:85 161:146 162:160 163:237 164:167 165:250 166:260 167:158 168:215 169:54 170:446 171:20 172:1 192:32 193:2607 194:2750 195:1078 196:3 198:4 199:3881 200:2756 202:3739 203:5755 204:4372 205:2926 206:4110 207:3637 208:5200 209:4100 210:777 211:293 212:1124 213:697 216:4751 217:441 218:3 End of report

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Enhancements to the RIS User Interface
by Henk Uijterwaal (RIPE-NCC) 19 Jul '01

19 Jul '01

Dear All, We have made 2 enhancements to the RIS user interface. Both can be accessed through the RIS web-page at http://www.ripe.net/ris/ris-index.html or http://abcoude.ripe.net/ris/query.html 1. Standard query RIS data query. The standard RIS query has been split into two: - "Search by AS": this searches the RIS DB for an AS, returned is a list of prefixes and their AS paths in which the AS number is seen. - "Search by Prefix": this searches the RIS DB for a given prefix. While the functionality is the same as before, this should make the standard queries easier to use. The (existing) status report will show you which data has been inserted into the DB. 2. RIS report A first version of a daily RISreport has been put online. The RISreport is a tool to extract interesting quantities from the peering sessions and maintain their values in a data-base. From the data-base, one can generate plots through a web-interface. This version is limited to a few plots for only the first 2 RRC's (RRC00 and RRC01). However, the mechanism to produce these plots can be easily expanded to plot other quantities and we will add more plots in the near future. In the meantime, if you have suggestions for new plots, please post them to the list. We also plan to add plots for the other route collectors soon. The RISreport has been mainly built by Thomas Franchetti during his internship at the RIPE NCC from Aug-2000 to April-2001 and we like to thank him for his efforts. As usual, any feedback on how we can improve the RIS project is more than welcome. Your RIPE NCC RIS Team Arife, Daniel, Luigi and Henk ------------------------------------------------------------------------------ Henk Uijterwaal Email: henk.uijterwaal(a)ripe.net RIPE Network Coordination Centre WWW: http://www.ripe.net/home/henk Singel 258 Phone: +31.20.5354414 1016 AB Amsterdam Fax: +31.20.5354445 The Netherlands Mobile: +31.6.55861746 ------------------------------------------------------------------------------ As long as you don't tell your friends how I played the hand, then I won't tell my friends how you defended it. (Anonymous)

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uk.unitron ip as issue
by John Shaw 17 Jul '01

17 Jul '01

Hi There, can you help, i have the range 217.196.0.0/20 (as20652) and announce it to cable and wireless and firstnet services (as15758) But when doing a traceroute into my network all 217.196 ip addresses have as15758's as number on them??? Even if i come in via cable and wireless or firstnet. now both transit providers did make an error and put a route object in for my network, which should have now been deleted. but im still getting firstnets as number on my range. This is very confusing and we can't locate the problem, everything seems ok in the ripe database now and as20652 (us) is the origin for the 217.196.0.0/20 network. can you help? John Shaw Technical Director Userve Internet Email: john(a)userve.net Web: www.userve.net

2 1

The Cidr Report
by cidr-report＠cisco.com 14 Jul '01

14 Jul '01

This is an auto-generated mail on Fri Jul 13 23:00:00 PDT 2001 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. 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(a)cisco.com. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. ------------------------------------------------------------------------------ CIDR REPORT for 13Jul01 0) General Status Table History ------------- Date Prefixes 060701 101036 070701 100965 080701 100869 090701 100962 100701 100995 110701 101196 120701 101105 130701 100848 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 11205 Number of ASes announcing only one prefix: 6646 (3807 cidr, 2839 classful) Largest number of cidr routes: 863 announced by AS701 Largest number of classful routes: 1429 announced by AS701 1) Gains by aggregating at the origin AS level --- 13Jul01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1335 997 338 25.3% Telstra Pty Ltd AS701 1429 1212 217 15.2% UUNET Technologies, Inc. AS4293 395 281 114 28.9% Cable & Wireless USA AS6595 161 57 104 64.6% DoD Education Activity Networ AS13999 104 8 96 92.3% Mega Cable S.A. de C.V. AS705 232 137 95 40.9% UUNET Technologies, Inc. AS6429 200 108 92 46.0% RdC Internet AS7018 730 639 91 12.5% AT&T AS4755 211 120 91 43.1% VSNL India AS2568 146 55 91 62.3% CTS Network Services AS4151 160 78 82 51.2% USDA AS8013 296 216 80 27.0% PSINet Ltd. Canada AS577 246 173 73 29.7% Bell Canada AS724 237 165 72 30.4% DLA Systems Automation Center AS7046 311 247 64 20.6% UUNET Technologies, Inc. AS6471 122 59 63 51.6% ENTEL CHILE S.A. AS3464 151 90 61 40.4% Alabama SuperComputer Network AS16473 113 54 59 52.2% Bell South AS16758 63 6 57 90.5% IKON Office Solutions AS1 570 514 56 9.8% BBN Planet AS1239 440 385 55 12.5% Sprint ICM-Inria AS226 144 91 53 36.8% Los Nettos AS6413 65 13 52 80.0% Southern Online Systems, Inc. AS3908 202 151 51 25.2% Supernet, Inc. AS17561 112 61 51 45.5% Internet Service West Austral AS852 215 165 50 23.3% Telus Advanced Communications AS9842 54 5 49 90.7% Lotte Data Communication Comp AS2149 317 268 49 15.5% Performance Systems, Inc. AS5106 81 33 48 59.3% Ameritech Advanced Data Servi AS4323 231 183 48 20.8% Time Warner Communications, I 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 Analysis 12 Jul '01

12 Jul '01

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 13 Jul, 2001 Analysis Summary ---------------- BGP routing table entries examined: 105113 Origin ASes present in the Internet Routing Table: 11289 Origin ASes announcing only one prefix: 4140 Transit ASes present in the Internet Routing Table: 1507 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 22 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 16 Number of addresses announced to Internet: 1241668606 Equivalent to 74 /8s, 2 /16s and 91 /24s Percentage of available address space announced: 33.5 Percentage of allocated address space announced: 65.1 Percentage of available address space allocated: 51.5 Total number of prefixes smaller than registry allocations: 71526 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15479 Prefixes being announced from the APNIC address blocks: 13968 APNIC Region origin ASes present in the Internet Routing Table: 1321 APNIC Region origin ASes announcing only one prefix: 467 APNIC Region transit ASes present in the Internet Routing Table: 221 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 72982886 Equivalent to 4 /8s, 89 /16s and 161 /24s Percentage of available APNIC address space announced: 71.8 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 71856 Prefixes being announced from the ARIN address blocks: 51537 ARIN Region origin ASes present in the Internet Routing Table: 6806 ARIN Region origin ASes announcing only one prefix: 2015 ARIN Region transit ASes present in the Internet Routing Table: 711 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 13 Number of ARIN addresses announced to Internet: 201497460 Equivalent to 12 /8s, 2 /16s and 155 /24s Percentage of available ARIN address space announced: 80.1 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17765 Prefixes being announced from the RIPE address blocks: 13726 RIPE Region origin ASes present in the Internet Routing Table: 3166 RIPE Region origin ASes announcing only one prefix: 1658 RIPE Region transit ASes present in the Internet Routing Table: 575 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 101358224 Equivalent to 6 /8s, 10 /16s and 154 /24s Percentage of available RIPE address space announced: 67.1 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 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 Description 1221 1673 1330 Telstra 2764 426 345 connect.com.au pty ltd 703 403 383 UUNET Technologies, Inc. 2907 367 1783 SINET Japan 4755 292 162 VSNL India 7474 242 293 Optus Communications 4134 233 1609 Data Communications Bureau 7539 208 181 TANet2, sponsored by NSC, TAI 4766 176 1242 KORnet Powered BY Korea Telec 7545 146 21 TPG Internet Pty Ltd 9443 136 38 INTERNETPRIMUS-AS-A 4786 130 17 NetConnect Communications Pty 4763 118 69 Telstra New Zealand 17561 115 151 Internet service provision to 7657 113 22 The Internet Group Limited 7586 112 17 Paradox Digital Pty. Ltd 9583 110 60 Satyam Infoway Ltd., 4740 109 15 Ozemail 4713 107 869 NTT-OCNET 4812 106 259 Shanghai Telecom Company RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 677 1849 UUNET Technologies, Inc. 3301 429 918 TeliaNet Sweden 15870 426 12 Global Center Frankfurt 719 413 337 LANLINK 1257 278 504 Swipnet AB 1270 249 868 UUNET Germany 680 232 2069 Deutschef Forschurgsnetz 3215 219 495 RAIN 15878 210 8 Global Center Paris 786 184 1890 JANET IP Service 3246 182 170 Clinet 5515 179 654 Sonera Finland 3320 169 1410 Deutsche Telekom AG 8708 148 15 Romania Data System 5400 140 68 Concert Internet Plus Europea 3303 130 575 Swisscom 517 125 272 Xlink 2856 123 776 BTnet UK Regional network 5549 118 66 Seicom Computer Gmb 1267 106 1986 IUnet S.p.A ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2313 8151 UUNET Technologies, Inc. 7018 963 7050 AT&T 1 902 8714 BBN Planet 7046 753 1092 UUNET Technologies, Inc. 1239 674 3322 Sprint ICM-Inria 690 554 97 Merit Network 2914 517 2317 Verio, Inc. 209 494 1876 Qwest 4293 494 99 Cable & Wireless USA 3561 431 2448 Cable & Wireless USA 2149 416 377 Performance Systems, Inc. 3908 416 583 Supernet, Inc. 2548 414 996 Digital Express Group, Inc. 18994 408 10 Global Crossing 3549 349 813 Global Crossing 11371 337 100 Rhythms NetConnections 4323 333 298 Time Warner Communications, I 3967 330 448 Exodus Communication 15290 323 342 AT&T Canada IES 18993 314 8 Global Crossing Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2313 8151 UUNET Technologies, Inc. 1221 1673 1330 Telstra 7018 963 7050 AT&T 1 902 8714 BBN Planet 7046 753 1092 UUNET Technologies, Inc. 702 677 1849 UUNET Technologies, Inc. 1239 674 3322 Sprint ICM-Inria 690 554 97 Merit Network 2914 517 2317 Verio, Inc. 209 494 1876 Qwest 4293 494 99 Cable & Wireless USA 3561 431 2448 Cable & Wireless USA 3301 429 918 TeliaNet Sweden 2764 426 345 connect.com.au pty ltd 15870 426 12 Global Center Frankfurt 2149 416 377 Performance Systems, Inc. 3908 416 583 Supernet, Inc. 2548 414 996 Digital Express Group, Inc. 719 413 337 LANLINK 18994 408 10 Global Crossing List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 578 UNALLOCATED 64.230.242.0/28 577 Bell Canada 578 UNALLOCATED 64.230.242.16/28 577 Bell Canada 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies, 65000 PRIVATE 194.100.160.0/24 3246 Clinet 65000 PRIVATE 194.100.161.0/24 3246 Clinet 65000 PRIVATE 194.100.162.0/24 3246 Clinet 65000 PRIVATE 194.100.163.0/24 3246 Clinet 65000 PRIVATE 194.100.164.0/24 3246 Clinet 65000 PRIVATE 194.100.165.0/24 3246 Clinet 65000 PRIVATE 194.100.166.0/24 3246 Clinet 65000 PRIVATE 194.100.167.0/24 3246 Clinet 65000 PRIVATE 194.100.168.0/24 3246 Clinet 65000 PRIVATE 194.100.169.0/24 3246 Clinet 65000 PRIVATE 194.100.170.0/24 3246 Clinet 65000 PRIVATE 194.100.201.0/24 3246 Clinet 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 99.0.0.0/8 9638 National Agricultural Coopera 128.65.0.0/16 3463 ACES Research Inc 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 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 US DOD NIC Unregistered 172.32.1.0/25 1221 Telstra 172.122.0.0/16 701 UUNET Technologies, Inc. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:5 /10:6 /11:9 /12:33 /13:80 /14:211 /15:354 /16:6913 /17:1190 /18:2231 /19:6742 /20:5376 /21:4511 /22:6849 /23:8673 /24:59597 /25:293 /26:364 /27:436 /28:449 /29:364 /30:338 /31:1 /32:68 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 1221 1518 1673 Telstra 701 1452 2313 UUNET Technologies, Inc. 7046 586 753 UUNET Technologies, Inc. 690 550 554 Merit Network 4293 478 494 Cable & Wireless USA 7018 474 963 AT&T 702 427 677 UUNET Technologies, Inc. 1 424 902 BBN Planet 15870 422 426 Global Center Frankfurt 18994 406 408 Global Crossing 2764 382 426 connect.com.au pty ltd 209 370 494 Qwest 1239 358 674 Sprint ICM-Inria 703 332 403 UUNET Technologies, Inc. 11371 324 337 Rhythms NetConnections 3908 314 416 Supernet, Inc. 18993 310 314 Global Crossing 2548 304 414 Digital Express Group, Inc. 4323 286 333 Time Warner Communications, I 8013 278 308 PSINet Ltd. Canada Advertised prefixes smaller than registry allocations (per /8 block) -------------------------------------------------------------------- 4:1 6:12 9:6 12:575 13:13 15:11 17:13 20:6 24:947 26:1 32:37 38:224 40:2 43:4 44:11 45:1 47:40 52:2 53:4 55:1 56:5 57:15 61:118 62:197 63:2506 64:2730 65:987 66:741 80:39 128:61 129:197 130:54 131:66 132:40 133:1 134:234 135:12 136:36 137:212 138:234 139:87 140:254 141:226 142:122 143:98 144:200 145:29 146:193 147:180 148:236 149:136 150:63 151:264 152:1079 153:38 154:24 155:146 156:92 157:156 158:113 159:80 160:85 161:146 162:161 163:193 164:170 165:248 166:257 167:156 168:204 169:54 170:436 171:20 172:1 192:32 193:2755 194:2799 195:1105 196:3 198:6 199:3875 200:2705 202:3761 203:5773 204:4316 205:2903 206:4093 207:3638 208:5201 209:4101 210:772 211:295 212:1175 213:719 216:4716 217:450 218:3 End of report

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The Cidr Report
by Tony Bates 07 Jul '01

07 Jul '01

This is an auto-generated mail on Fri Jul 6 23:00:00 PDT 2001 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. 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 me. Check http://www.employees.org/~tbates/cidr-report.html for a daily update of this report. ------------------------------------------------------------------------------ CIDR REPORT for 06Jul01 0) General Status Table History ------------- Date Prefixes 290601 100654 300601 101008 010701 100929 020701 100843 030701 101022 040701 101049 050701 100922 060701 101036 Check http://www.employees.org/~tbates/cidr.plot.html for a plot of the table history. Possible Bogus Routes --------------------- AS Summary ---------- Number of ASes in routing system: 11154 Number of ASes announcing only one prefix: 6601 (3771 cidr, 2830 classful) Largest number of cidr routes: 1007 announced by AS701 Largest number of classful routes: 1423 announced by AS701 1) Gains by aggregating at the origin AS level --- 06Jul01 --- ASnum NetsNow NetsCIDR NetGain % Gain Description AS1221 1342 1000 342 25.5% UNKNOWN AS701 1423 1209 214 15.0% UNKNOWN AS4293 394 282 112 28.4% UNKNOWN AS6595 158 57 101 63.9% UNKNOWN AS7018 743 651 92 12.4% UNKNOWN AS6429 201 109 92 45.8% UNKNOWN AS705 225 134 91 40.4% UNKNOWN AS4755 207 122 85 41.1% UNKNOWN AS4151 159 77 82 51.6% UNKNOWN AS8013 298 218 80 26.8% UNKNOWN AS13999 94 15 79 84.0% UNKNOWN AS724 246 172 74 30.1% UNKNOWN AS577 247 174 73 29.6% UNKNOWN AS6471 118 55 63 53.4% UNKNOWN AS3464 152 90 62 40.8% UNKNOWN AS7046 306 245 61 19.9% UNKNOWN AS1 584 524 60 10.3% UNKNOWN AS16758 63 6 57 90.5% UNKNOWN AS1239 446 391 55 12.3% UNKNOWN AS226 144 91 53 36.8% UNKNOWN AS6413 65 13 52 80.0% UNKNOWN AS3908 205 154 51 24.9% UNKNOWN AS17561 112 61 51 45.5% UNKNOWN AS852 211 161 50 23.7% UNKNOWN AS2149 323 273 50 15.5% UNKNOWN AS9842 54 5 49 90.7% UNKNOWN AS12302 79 30 49 62.0% MobiFon S.A. AS5106 81 33 48 59.3% UNKNOWN AS15290 237 191 46 19.4% UNKNOWN AS3602 221 176 45 20.4% UNKNOWN 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 Analysis 05 Jul '01

05 Jul '01

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 06 Jul, 2001 Analysis Summary ---------------- BGP routing table entries examined: 103233 Origin ASes present in the Internet Routing Table: 11185 Origin ASes announcing only one prefix: 4127 Transit ASes present in the Internet Routing Table: 1520 Average AS path length visible in the Internet Routing Table: 5.5 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 20 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 13 Number of addresses announced to Internet: 1219205911 Equivalent to 72 /8s, 171 /16s and 155 /24s Percentage of available address space announced: 32.9 Percentage of allocated address space announced: 63.9 Percentage of available address space allocated: 51.5 Total number of prefixes smaller than registry allocations: 69965 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15010 Prefixes being announced from the APNIC address blocks: 13571 APNIC Region origin ASes present in the Internet Routing Table: 1289 APNIC Region origin ASes announcing only one prefix: 473 APNIC Region transit ASes present in the Internet Routing Table: 224 Average APNIC Region AS path length visible: 5.8 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 71158591 Equivalent to 4 /8s, 61 /16s and 203 /24s Percentage of available APNIC address space announced: 70.0 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 71367 Prefixes being announced from the ARIN address blocks: 51264 ARIN Region origin ASes present in the Internet Routing Table: 6783 ARIN Region origin ASes announcing only one prefix: 2004 ARIN Region transit ASes present in the Internet Routing Table: 719 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 199350017 Equivalent to 11 /8s, 225 /16s and 215 /24s Percentage of available ARIN address space announced: 79.2 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 - 22527 ARIN Address Blocks 24/8, 63/8, 64/6, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 16856 Prefixes being announced from the RIPE address blocks: 12951 RIPE Region origin ASes present in the Internet Routing Table: 3124 RIPE Region origin ASes announcing only one prefix: 1650 RIPE Region transit ASes present in the Internet Routing Table: 576 Average RIPE Region AS path length visible: 6.3 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 100222080 Equivalent to 5 /8s, 249 /16s and 68 /24s Percentage of available RIPE address space announced: 66.4 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 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 Description 1221 1557 1309 Telstra 2764 435 345 connect.com.au pty ltd 703 385 382 UUNET Technologies, Inc. 2907 368 1783 SINET Japan 4755 285 165 VSNL India 7474 237 293 Optus Communications 4134 217 1555 Data Communications Bureau 4766 175 1242 KORnet Powered BY Korea Telec 7539 155 175 TANet2, sponsored by NSC, TAI 4786 145 16 NetConnect Communications Pty 7545 142 21 TPG Internet Pty Ltd 9443 132 38 INTERNETPRIMUS-AS-A 4740 117 16 Ozemail 7586 116 18 Paradox Digital Pty. Ltd 7657 115 22 The Internet Group Limited 17561 115 151 Internet service provision to 9583 111 60 Satyam Infoway Ltd., 4713 107 869 NTT-OCNET 4732 106 358 DDI Corporation 9797 103 32 Asia Online Australia RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 656 1828 UUNET Technologies, Inc. 3301 427 918 TeliaNet Sweden 15870 427 12 Global Center Frankfurt 1257 278 504 Swipnet AB 1270 257 870 UUNET Germany 680 230 2053 Deutschef Forschurgsnetz 3215 214 495 RAIN 15878 212 8 Global Center Paris 719 186 291 LANLINK 786 184 1904 JANET IP Service 5515 175 654 Sonera Finland 3320 171 1410 Deutsche Telekom AG 8708 147 15 Romania Data System 5400 133 68 Concert Internet Plus Europea 3303 129 576 Swisscom 517 126 272 Xlink 2856 120 776 BTnet UK Regional network 1267 101 1970 IUnet S.p.A 1290 98 406 PSINet UK Ltd. 3269 92 664 TELECOM ITALIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2450 8067 UUNET Technologies, Inc. 7018 960 7056 AT&T 1 835 8720 BBN Planet 7046 739 1089 UUNET Technologies, Inc. 1239 655 3289 Sprint ICM-Inria 690 549 79 Merit Network 2914 518 2314 Verio, Inc. 4293 497 101 Cable & Wireless USA 209 474 1876 Qwest 3561 454 2404 Cable & Wireless USA 3491 440 378 CAIS Internet 705 424 62 UUNET Technologies, Inc. 2149 417 378 Performance Systems, Inc. 2548 412 980 Digital Express Group, Inc. 18994 410 10 Global Crossing 3908 406 582 Supernet, Inc. 3549 348 813 Global Crossing 3967 337 455 Exodus Communication 11371 331 99 Rhythms NetConnections 15290 324 358 AT&T Canada IES Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2450 8067 UUNET Technologies, Inc. 1221 1557 1309 Telstra 7018 960 7056 AT&T 1 835 8720 BBN Planet 7046 739 1089 UUNET Technologies, Inc. 702 656 1828 UUNET Technologies, Inc. 1239 655 3289 Sprint ICM-Inria 690 549 79 Merit Network 2914 518 2314 Verio, Inc. 4293 497 101 Cable & Wireless USA 209 474 1876 Qwest 3561 454 2404 Cable & Wireless USA 3491 440 378 CAIS Internet 2764 435 345 connect.com.au pty ltd 3301 427 918 TeliaNet Sweden 15870 427 12 Global Center Frankfurt 705 424 62 UUNET Technologies, Inc. 2149 417 378 Performance Systems, Inc. 2548 412 980 Digital Express Group, Inc. 18994 410 10 Global Crossing List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 17675 UNALLOCATED 61.211.160.0/20 3549 Global Crossing 17682 UNALLOCATED 61.213.16.0/20 4713 NTT-OCNET 17682 UNALLOCATED 61.213.32.0/21 4713 NTT-OCNET 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 5962 UNALLOCATED 192.41.249.0/24 721 DLA Systems Automati 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies, 17674 UNALLOCATED 202.6.156.0/22 9225 Level 3 Communicatio 9700 UNALLOCATED 202.30.50.0/23 3786 DACOM Corporation 17657 UNALLOCATED 202.161.160.0/20 9653 AGNS HongKong NET 9700 UNALLOCATED 203.255.208.0/24 3786 DACOM Corporation 9700 UNALLOCATED 203.255.209.0/24 3786 DACOM Corporation 9700 UNALLOCATED 203.255.210.0/24 3786 DACOM Corporation 9700 UNALLOCATED 203.255.211.0/24 3786 DACOM Corporation 5954 UNALLOCATED 204.130.191.0/24 721 DLA Systems Automati 5979 UNALLOCATED 206.197.206.0/24 721 DLA Systems Automati 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 128.65.0.0/16 3463 ACES Research Inc 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 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 172.122.0.0/16 701 UUNET Technologies, Inc. 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:5 /10:6 /11:9 /12:32 /13:78 /14:212 /15:352 /16:6895 /17:1180 /18:2170 /19:6702 /20:5326 /21:4471 /22:6719 /23:8465 /24:58814 /25:169 /26:262 /27:352 /28:366 /29:309 /30:282 /31:1 /32:37 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1585 2450 UUNET Technologies, Inc. 1221 1405 1557 Telstra 7046 572 739 UUNET Technologies, Inc. 690 546 549 Merit Network 4293 480 497 Cable & Wireless USA 7018 469 960 AT&T 15870 423 427 Global Center Frankfurt 3491 415 440 CAIS Internet 702 410 656 UUNET Technologies, Inc. 18994 408 410 Global Crossing 2764 390 435 connect.com.au pty ltd 705 385 424 UUNET Technologies, Inc. 1 354 835 BBN Planet 209 350 474 Qwest 1239 336 655 Sprint ICM-Inria 11371 318 331 Rhythms NetConnections 703 314 385 UUNET Technologies, Inc. 18993 312 316 Global Crossing 2548 304 412 Digital Express Group, Inc. 3908 303 406 Supernet, Inc. Advertised prefixes smaller than registry allocations (per /8 block) -------------------------------------------------------------------- 4:1 6:12 9:6 12:568 13:13 15:11 17:13 20:4 24:840 26:1 32:34 35:2 38:358 40:2 43:4 44:11 45:1 47:38 52:2 53:4 55:1 56:5 57:14 61:109 62:188 63:2491 64:2670 65:1205 66:733 80:15 128:60 129:201 130:54 131:63 132:40 133:1 134:235 135:12 136:36 137:176 138:278 139:84 140:194 141:225 142:113 143:98 144:179 145:31 146:192 147:178 148:204 149:131 150:60 151:265 152:812 153:38 154:4 155:145 156:94 157:154 158:100 159:102 160:81 161:134 162:162 163:221 164:169 165:238 166:255 167:155 168:201 169:53 170:434 171:20 172:1 192:15 193:2573 194:2683 195:980 198:4 199:3845 200:2693 202:3667 203:5649 204:4348 205:2896 206:3969 207:3668 208:5175 209:4051 210:719 211:255 212:1096 213:586 216:4638 217:413 218:3 End of report

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