Weekly Routing Table Report
Routing Table Analysis
cscora at thyme.apnic.net
Fri Jul 19 06:04:59 EDT 2002
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 at 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 at cisco.com>.
Routing Table Report 20:00 +10GMT Fri 19 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113997
Prefixes after maximum aggregation: 73584
Unique aggregates announced to Internet: 53982
Total ASes present in the Internet Routing Table: 13381
Origin-only ASes present in the Internet Routing Table: 11573
Origin ASes announcing only one prefix: 5143
Transit ASes present in the Internet Routing Table: 1808
Transit-only ASes present in the Internet Routing Table: 50
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: 16
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 41
Number of addresses announced to Internet: 1179873784
Equivalent to 70 /8s, 83 /16s and 113 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46191
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18841
Total APNIC prefixes after maximum aggregation: 11130
Prefixes being announced from the APNIC address blocks: 17370
Unique aggregates announced from the APNIC address blocks: 10548
APNIC Region origin ASes present in the Internet Routing Table: 1571
APNIC Region origin ASes announcing only one prefix: 516
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 89465184
Equivalent to 5 /8s, 85 /16s and 33 /24s
Percentage of available APNIC address space announced: 58.8
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75393
Total ARIN prefixes after maximum aggregation: 47868
Prefixes being announced from the ARIN address blocks: 53475
Unique aggregates announced from the ARIN address blocks: 17970
ARIN Region origin ASes present in the Internet Routing Table: 7868
ARIN Region origin ASes announcing only one prefix: 2528
ARIN Region transit ASes present in the Internet Routing Table: 787
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 189289040
Equivalent to 11 /8s, 72 /16s and 82 /24s
Percentage of available ARIN address space announced: 70.5
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: 19749
Total RIPE prefixes after maximum aggregation: 14586
Prefixes being announced from the RIPE address blocks: 16295
Unique aggregates announced from the RIPE address blocks: 9933
RIPE Region origin ASes present in the Internet Routing Table: 3895
RIPE Region origin ASes announcing only one prefix: 2099
RIPE Region transit ASes present in the Internet Routing Table: 729
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 115727904
Equivalent to 6 /8s, 229 /16s and 222 /24s
Percentage of available RIPE address space announced: 76.6
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503, 24576 - 25599
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 1258 1207 901 Telstra Pty Ltd
4538 558 1278 26 China Education and Research
703 406 359 321 UUNET Technologies, Inc.
2907 365 1849 342 SINET Japan
2764 358 358 329 connect.com.au pty ltd
7474 319 296 213 Optus Communications Pty Ltd
17557 296 20 103 Pakistan Telecom
4755 293 112 77 Videsh Sanchar Nigam Ltd. Aut
4134 291 2134 102 Data Communications Bureau
9443 252 45 67 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group) - Beiji
9583 180 32 5 Satyam Infoway Ltd.,
17676 165 2562 30 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 128 22 87 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
7539 120 184 119 TANet2, sponsored by NSC, TAI
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 911 2442 768 UUNET Technologies, Inc.
5515 647 785 188 Sonera Finland Autonomous Sys
3301 397 924 347 TeliaNet Sweden
3215 276 639 175 France Telecom / &Equant
3352 274 531 31 Ibernet, Internet Access Netw
3320 263 1962 202 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 208 85 97 Concert European Core Network
1257 206 430 203 SWIPnet Swedish IP Network
719 189 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 140 548 139 Swisscom Ltd
8708 139 23 136 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks / Clinet
5511 110 192 88 France Telecom
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1844 9193 1386 UUNET Technologies, Inc.
7018 1298 7402 943 AT&T
3908 935 1643 503 Supernet, Inc.
1239 821 3276 643 Sprint
852 752 1175 450 Telus Advanced Communications
1 702 8078 451 GENUITY
7843 643 360 239 Adelphia Corp.
4323 627 439 258 Time Warner Communications, I
7132 583 659 133 Southwestern Bell Internet Se
209 540 2011 352 Qwest
7046 536 889 340 UUNET Technologies, Inc.
690 516 74 328 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 464 165 56 Alltel Information Services,
3549 434 828 314 Global Crossing
2914 396 2067 373 Verio, Inc.
15290 378 297 193 AT&T Canada IES
6197 370 547 36 BellSouth Network Solutions,
6347 345 370 77 SAVVIS Communications Corpora
2386 317 406 195 AT&T Data Communications Serv
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 558 532 China Education and Research
5515 647 459 Sonera Finland Autonomous Sys
7132 583 450 Southwestern Bell Internet Se
3908 935 432 Supernet, Inc.
7029 464 408 Alltel Information Services,
7843 643 404 Adelphia Corp.
4323 627 369 Time Warner Communications, I
1221 1258 357 Telstra Pty Ltd
7018 1298 355 AT&T
6197 370 334 BellSouth Network Solutions,
852 752 302 Telus Advanced Communications
4151 288 272 USDA
6347 345 268 SAVVIS Communications Corpora
1 702 251 GENUITY
4355 303 251 EarthLink, Inc.
3352 274 243 Ibernet, Internet Access Netw
7066 485 231 Virginia Polytechnic Institut
18566 231 227 Covad Communications
4755 293 216 Videsh Sanchar Nigam Ltd. Aut
7303 278 215 Telecom Argentina Stet-France
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26108 UNALLOCATED 64.70.35.0/24 3967 Exodus Communication
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65003 PRIVATE 202.92.64.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
65527 PRIVATE 206.98.160.0/24 6221 US Cybersites, Inc
65156 PRIVATE 206.98.164.0/24 6221 US Cybersites, Inc
65527 PRIVATE 206.98.236.0/24 6221 US Cybersites, Inc
65156 PRIVATE 206.98.244.0/24 6221 US Cybersites, Inc
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65111 PRIVATE 207.51.32.0/24 6221 US Cybersites, Inc
65500 PRIVATE 208.144.80.0/24 6221 US Cybersites, Inc
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
88.128.0.0/17 9116 Goldenlines main autonomous s
88.128.128.0/17 9116 Goldenlines main autonomous s
88.129.0.0/17 9116 Goldenlines main autonomous s
88.129.128.0/17 9116 Goldenlines main autonomous s
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.5.154.0/24 16588 Spider Web Hosting Solutions
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.
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.69.0/24 5515 Sonera Finland Autonomous Sys
192.83.72.0/21 5515 Sonera Finland Autonomous Sys
192.83.80.0/20 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
192.108.46.0/23 680 DFN-IP service G-WiN
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 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
192.153.136.0/21 568 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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:86 /14:235 /15:415 /16:7258 /17:1455 /18:2658
/19:7696 /20:7434 /21:5233 /22:7938 /23:9714 /24:63113
/25:203 /26:180 /27:86 /28:70 /29:49 /30:72
/31:0 /32:22
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 554 911 UUNET Technologies, Inc.
701 511 1844 UUNET Technologies, Inc.
3908 511 935 Supernet, Inc.
690 458 516 Merit Network
7843 448 643 Adelphia Corp.
5515 407 647 Sonera Finland Autonomous Sys
7066 388 485 Virginia Polytechnic Institut
7029 367 464 Alltel Information Services,
7018 352 1298 AT&T
6197 256 370 BellSouth Network Solutions,
6198 238 310 BellSouth Network Solutions,
3301 234 397 TeliaNet Sweden
18566 227 231 Covad Communications
1239 214 821 Sprint
209 213 540 Qwest
3215 209 276 France Telecom / &Equant
1580 205 218 HQ, 5th Signal Command
3352 199 274 Ibernet, Internet Access Netw
7046 198 536 UUNET Technologies, Inc.
3320 196 263 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:502 13:10 15:2 17:6 20:3
24:750 25:1 32:41 38:9 40:6 44:1
57:13 61:297 62:227 63:1865 64:1192 65:1380
66:991 67:91 68:65 80:256 81:34 128:63
129:129 130:22 131:95 132:11 133:2 134:125
135:8 136:243 137:95 138:152 139:70 140:166
141:124 142:79 143:44 144:146 145:14 146:189
147:139 148:238 149:79 150:41 151:67 152:266
153:36 154:13 155:113 156:70 157:127 158:70
159:136 160:18 161:71 162:213 163:94 164:262
165:133 166:219 167:175 168:294 169:59 170:240
171:3 192:5507 193:2436 194:2177 195:920 196:410
198:3633 199:3170 200:2614 202:3323 203:4719 204:3235
205:2171 206:2609 207:2501 208:2601 209:2622 210:604
211:232 212:912 213:670 214:9 215:19 216:2821
217:472 218:28
End of report
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