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Weekly Routing Table Report
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 27 Sep, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115493
Prefixes after maximum aggregation: 74306
Unique aggregates announced to Internet: 54740
Total ASes present in the Internet Routing Table: 13819
Origin-only ASes present in the Internet Routing Table: 11950
Origin ASes announcing only one prefix: 5354
Transit ASes present in the Internet Routing Table: 1869
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1193952488
Equivalent to 71 /8s, 42 /16s and 68 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 47686
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18725
Total APNIC prefixes after maximum aggregation: 11349
Prefixes being announced from the APNIC address blocks: 17243
Unique aggregates announced from the APNIC address blocks: 10956
APNIC Region origin ASes present in the Internet Routing Table: 1620
APNIC Region origin ASes announcing only one prefix: 529
APNIC Region transit ASes present in the Internet Routing Table: 280
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 97742368
Equivalent to 5 /8s, 211 /16s and 110 /24s
Percentage of available APNIC address space announced: 64.3
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: 72293
Total ARIN prefixes after maximum aggregation: 46009
Prefixes being announced from the ARIN address blocks: 50847
Unique aggregates announced from the ARIN address blocks: 15576
ARIN Region origin ASes present in the Internet Routing Table: 7759
ARIN Region origin ASes announcing only one prefix: 2546
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: 18
Number of ARIN addresses announced to Internet: 181229888
Equivalent to 10 /8s, 205 /16s and 89 /24s
Percentage of available ARIN address space announced: 67.5
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 - 26591
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19657
Total RIPE prefixes after maximum aggregation: 14869
Prefixes being announced from the RIPE address blocks: 16289
Unique aggregates announced from the RIPE address blocks: 10077
RIPE Region origin ASes present in the Internet Routing Table: 4066
RIPE Region origin ASes announcing only one prefix: 2199
RIPE Region transit ASes present in the Internet Routing Table: 757
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 117783680
Equivalent to 7 /8s, 5 /16s and 60 /24s
Percentage of available RIPE address space announced: 78.0
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4812
Total LACNIC prefixes after maximum aggregation: 2079
Prefixes being announced from the LACNIC address blocks: 4222
Unique aggregates announced from the LACNIC address blocks: 2619
LACNIC Region origin ASes present in the Internet Routing Table: 314
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11311872
Equivalent to 0 /8s, 172 /16s and 155 /24s
Percentage of available LACNIC address space announced: 67.4
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1197 1187 881 Telstra Pty Ltd
703 396 368 311 UUNET
2907 359 1815 339 SINET Japan
2764 345 357 317 connect.com.au pty ltd
7474 305 275 205 Optus Communications Pty Ltd
4134 290 2268 96 Data Communications Bureau
17557 288 21 110 Pakistan Telecom
4755 253 141 73 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 224 80 16 China Telecom (Group)
17676 221 3458 32 XTAGE CORPORATION
9443 185 57 70 Primus Telecommunications
9583 175 32 5 Satyam Infoway Ltd.,
4515 139 102 80 Star Internet Services Ltd.
9768 136 385 74 Korea Telecom
7657 128 22 85 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 116 1049 105 NTT Communications Corporatio
9498 109 8 21 BHARTI BT INTERNET LTD.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1787 9245 1287 UUNET Technologies, Inc.
7018 1323 7184 932 AT&T
1239 1121 3178 653 Sprint
3908 1047 1652 508 Supernet, Inc.
852 750 1145 454 Telus Advanced Communications
7843 713 371 304 Adelphia Corp.
1 657 8088 434 GENUITY
7132 602 638 140 Southwestern Bell Internet Se
7046 590 879 311 UUNET Technologies, Inc.
4323 523 435 165 Time Warner Communications, I
209 521 2066 348 Qwest
690 517 75 324 Merit Network
7066 488 204 258 Virginia Polytechnic Institut
2548 447 1118 274 Business Internet, Inc.
3549 418 727 298 Global Crossing
705 409 130 199 UUNET Technologies, Inc.
4355 382 292 104 EarthLink, Inc.
6197 382 597 39 BellSouth Network Solutions,
2914 368 2027 361 Verio, Inc.
15290 361 230 178 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 872 2406 727 UUNET - Commercial IP service
3301 385 907 341 TeliaNet Sweden
3215 294 677 170 France Telecom Transpac
3320 243 1966 221 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5400 215 86 102 BT Ignite European Backbone
5515 214 783 177 Sonera Solution Autonomous Sy
1257 202 444 199 SWIPnet Swedish IP Network
719 190 306 130 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 148 41 143 Romania Data Systems S.A.
3303 143 532 142 Swisscom Ltd
2856 132 786 122 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 123 373 116 Song Networks
5511 109 189 87 France Telecom
8220 108 168 101 COLT Internet - International
3233 107 10 8 RNC - Romanian Natioanal R&D
2874 104 85 40 Global One Services AB
3269 104 658 63 TELECOM ITALIA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 199 298 110 UniNet S.A. de C.V.
7303 172 27 50 Telecom Argentina Stet-France
11172 167 88 34 Servicios Alestra S.A de C.V
6503 159 206 113 AVANTEL, S.A.
10834 146 75 34 ADVANCE TELECOMUNICACIONES S.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
6140 99 76 27 ImpSat USA, Inc.
10620 93 6 29 TVCABLE BOGOTA
11340 80 2 25 Red Universitaria Nacional
15034 74 6 32 TIBA SA
1916 73 409 40 Fundacao de Amparo a Pesquisa
11992 70 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
15311 68 24 31 Telefonica Empresas
2277 66 16 3 ECUANET - CORPORACION ECUATOR
7984 66 27 42 Global One Colombia
4926 64 4 52 Telintar S.A.
8065 59 6 16 Empresas Publicas de Medellin
16528 57 5 35 ImpSat S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1047 539 Supernet, Inc.
1239 1121 468 Sprint
7132 602 462 Southwestern Bell Internet Se
7843 713 409 Adelphia Corp.
7018 1323 391 AT&T
4323 523 358 Time Warner Communications, I
6197 382 343 BellSouth Network Solutions,
1221 1197 316 Telstra Pty Ltd
852 750 296 Telus Advanced Communications
7046 590 279 UUNET Technologies, Inc.
4355 382 278 EarthLink, Inc.
6347 346 268 SAVVIS Communications Corpora
18566 272 268 Covad Communications
4151 279 264 USDA
376 343 233 Reseau Interordinateurs Scien
7066 488 230 Virginia Polytechnic Institut
1 657 223 GENUITY
705 409 210 UUNET Technologies, Inc.
4814 224 208 China Telecom (Group)
11492 215 201 Cable One
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65011 PRIVATE 207.8.204.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.8.227.0/24 4231 You Tools Corporatio
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65506 PRIVATE 207.106.30.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.58.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.90.0/24 4231 You Tools Corporatio
65011 PRIVATE 207.106.122.0/24 4231 You Tools Corporatio
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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 Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:6 /10:7 /11:12 /12:37
/13:89 /14:236 /15:428 /16:7272 /17:1501 /18:2690
/19:7876 /20:7533 /21:5285 /22:8097 /23:9823 /24:63807
/25:165 /26:221 /27:115 /28:83 /29:48 /30:88
/31:0 /32:55
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 618 1047 Supernet, Inc.
702 536 872 UUNET - Commercial IP service
7843 524 713 Adelphia Corp.
701 487 1787 UUNET Technologies, Inc.
690 465 517 Merit Network
1239 445 1121 Sprint
7018 407 1323 AT&T
7066 386 488 Virginia Polytechnic Institut
7046 276 590 UUNET Technologies, Inc.
18566 268 272 Covad Communications
6197 267 382 BellSouth Network Solutions,
6198 241 310 BellSouth Network Solutions,
3301 228 385 TeliaNet Sweden
3215 225 294 France Telecom Transpac
4355 220 382 EarthLink, Inc.
11492 210 215 Cable One
1580 198 211 ANOSCEUR
209 193 521 Qwest
5400 189 215 BT Ignite European Backbone
705 185 409 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:550 13:10 15:4 17:7 20:5
24:849 25:1 32:41 38:18 40:7 44:1
55:1 57:14 61:355 62:240 63:1918 64:1273
65:1573 66:1172 67:107 68:159 80:295 81:60
128:66 129:147 130:21 131:55 132:11 133:2
134:130 135:9 136:583 137:100 138:158 139:69
140:151 141:73 142:71 143:48 144:142 145:17
146:251 147:143 148:248 149:78 150:42 151:61
152:297 153:38 154:9 155:105 156:102 157:111
158:65 159:136 160:23 161:72 162:123 163:88
164:261 165:126 166:106 167:269 168:284 169:57
170:177 171:3 192:5384 193:2407 194:2019 195:812
196:427 198:3601 199:3081 200:2613 202:3394 203:4774
204:3297 205:2153 206:2419 207:2485 208:2614 209:2590
210:607 211:245 212:889 213:716 214:7 215:19
216:2916 217:502 218:44 219:2
End of report
-----
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