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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 04 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 115352
Prefixes after maximum aggregation: 74354
Unique aggregates announced to Internet: 55194
Total ASes present in the Internet Routing Table: 13853
Origin-only ASes present in the Internet Routing Table: 11981
Origin ASes announcing only one prefix: 5379
Transit ASes present in the Internet Routing Table: 1872
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: 1
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: 1190818664
Equivalent to 70 /8s, 250 /16s and 115 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 47772
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18762
Total APNIC prefixes after maximum aggregation: 11392
Prefixes being announced from the APNIC address blocks: 17280
Unique aggregates announced from the APNIC address blocks: 10967
APNIC Region origin ASes present in the Internet Routing Table: 1620
APNIC Region origin ASes announcing only one prefix: 528
APNIC Region transit ASes present in the Internet Routing Table: 282
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 97984928
Equivalent to 5 /8s, 215 /16s and 33 /24s
Percentage of available APNIC address space announced: 64.4
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72181
Total ARIN prefixes after maximum aggregation: 46019
Prefixes being announced from the ARIN address blocks: 50446
Unique aggregates announced from the ARIN address blocks: 15294
ARIN Region origin ASes present in the Internet Routing Table: 7784
ARIN Region origin ASes announcing only one prefix: 2567
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: 18
Number of ARIN addresses announced to Internet: 181344320
Equivalent to 10 /8s, 207 /16s and 24 /24s
Percentage of available ARIN address space announced: 67.6
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 - 26591, 26624 - 27647
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: 19582
Total RIPE prefixes after maximum aggregation: 14861
Prefixes being announced from the RIPE address blocks: 16255
Unique aggregates announced from the RIPE address blocks: 10812
RIPE Region origin ASes present in the Internet Routing Table: 4072
RIPE Region origin ASes announcing only one prefix: 2203
RIPE Region transit ASes present in the Internet Routing Table: 759
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 114297472
Equivalent to 6 /8s, 208 /16s and 10 /24s
Percentage of available RIPE address space announced: 75.7
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: 4827
Total LACNIC prefixes after maximum aggregation: 2082
Prefixes being announced from the LACNIC address blocks: 4210
Unique aggregates announced from the LACNIC address blocks: 2624
LACNIC Region origin ASes present in the Internet Routing Table: 316
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11373568
Equivalent to 0 /8s, 173 /16s and 140 /24s
Percentage of available LACNIC address space announced: 67.8
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 1198 1187 881 Telstra Pty Ltd
703 398 375 314 UUNET
2907 361 1831 341 SINET Japan
2764 342 356 314 connect.com.au pty ltd
7474 303 275 206 Optus Communications Pty Ltd
4134 292 2268 96 Data Communications Bureau
17557 289 21 111 Pakistan Telecom
4755 254 139 73 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 224 80 16 China Telecom (Group)
17676 224 3506 33 XTAGE CORPORATION
9443 186 57 71 Primus Telecommunications
9583 165 32 5 Satyam Infoway Ltd.,
4515 137 102 78 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
7657 128 22 85 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 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 1784 9231 1282 UUNET Technologies, Inc.
7018 1337 7195 937 AT&T
3908 1049 1652 509 Supernet, Inc.
1239 847 3170 649 Sprint
852 756 1145 457 Telus Advanced Communications
7843 717 371 298 Adelphia Corp.
1 662 8089 439 GENUITY
7132 595 672 71 Southwestern Bell Internet Se
7046 579 878 300 UUNET Technologies, Inc.
209 526 2066 341 Qwest
4323 525 435 165 Time Warner Communications, I
690 518 75 325 Merit Network
7066 490 204 257 Virginia Polytechnic Institut
2548 447 1134 277 Business Internet, Inc.
705 409 130 199 UUNET Technologies, Inc.
3549 409 725 295 Global Crossing
6197 390 601 40 BellSouth Network Solutions,
4355 382 292 104 EarthLink, Inc.
2914 368 2027 361 Verio, Inc.
15290 358 230 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 874 2407 728 UUNET - Commercial IP service
3301 387 907 339 TeliaNet Sweden
3215 294 677 170 France Telecom Transpac
3320 248 1966 225 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 214 783 177 Sonera Solution Autonomous Sy
5400 210 84 98 BT Ignite European Backbone
1257 205 444 201 SWIPnet Swedish IP Network
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
8708 151 41 145 Romania Data Systems S.A.
3303 144 532 143 Swisscom Ltd
2856 135 788 125 BTnet UK Regional network
3246 123 373 116 Song Networks
12302 122 17 29 MobiFon S.A.
5511 111 192 89 France Telecom
8220 110 168 102 COLT Internet - International
3233 107 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 103 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 201 299 113 UniNet S.A. de C.V.
7303 172 27 49 Telecom Argentina Stet-France
11172 170 88 35 Servicios Alestra S.A de C.V
6503 151 206 106 AVANTEL, S.A.
10834 147 75 35 ADVANCE TELECOMUNICACIONES S.
6140 115 76 28 ImpSat USA, Inc.
16814 107 7 13 NSS, S.A.
13999 103 19 8 Mega Cable S.A. de C.V.
10620 93 6 29 TVCABLE BOGOTA
11340 79 2 24 Red Universitaria Nacional
1916 73 409 40 Fundacao de Amparo a Pesquisa
15311 73 24 31 Telefonica Empresas
15034 72 5 32 TIBA SA
11992 70 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
7984 64 27 42 Global One Colombia
2277 63 16 3 ECUANET - CORPORACION ECUATOR
4926 63 4 51 Telintar S.A.
8065 60 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 1049 540 Supernet, Inc.
7132 595 524 Southwestern Bell Internet Se
7843 717 419 Adelphia Corp.
7018 1337 400 AT&T
4323 525 360 Time Warner Communications, I
6197 390 350 BellSouth Network Solutions,
1221 1198 317 Telstra Pty Ltd
1580 319 307 ANOSCEUR
852 756 299 Telus Advanced Communications
18566 291 287 Covad Communications
7046 579 279 UUNET Technologies, Inc.
4355 382 278 EarthLink, Inc.
6347 341 267 SAVVIS Communications Corpora
4151 280 265 USDA
7066 490 233 Virginia Polytechnic Institut
376 337 229 Reseau Interordinateurs Scien
1 662 223 GENUITY
705 409 210 UUNET Technologies, Inc.
11492 222 209 Cable One
4814 224 208 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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 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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:90 /14:238 /15:428 /16:7274 /17:1501 /18:2708
/19:7863 /20:7508 /21:5292 /22:8106 /23:9863 /24:63607
/25:171 /26:208 /27:116 /28:84 /29:52 /30:107
/31:0 /32:56
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 619 1049 Supernet, Inc.
702 538 874 UUNET - Commercial IP service
7843 528 717 Adelphia Corp.
701 485 1784 UUNET Technologies, Inc.
690 465 518 Merit Network
7018 420 1337 AT&T
7066 388 490 Virginia Polytechnic Institut
1580 306 319 ANOSCEUR
18566 285 291 Covad Communications
6197 274 390 BellSouth Network Solutions,
7046 265 579 UUNET Technologies, Inc.
6198 243 313 BellSouth Network Solutions,
1239 240 847 Sprint
3301 231 387 TeliaNet Sweden
3215 225 294 France Telecom Transpac
4355 220 382 EarthLink, Inc.
11492 217 222 Cable One
209 203 526 Qwest
3320 189 248 Deutsche Telekom AG
5400 188 210 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:550 13:10 15:4 17:7 20:4
24:841 25:1 32:41 38:24 40:7 44:1
55:1 57:14 61:358 62:235 63:1851 64:1283
65:1523 66:1203 67:110 68:124 80:300 81:56
128:118 129:125 130:19 131:54 132:9 133:2
134:129 135:9 136:589 137:104 138:153 139:70
140:166 141:66 142:71 143:49 144:152 145:17
146:240 147:225 148:248 149:78 150:42 151:73
152:297 153:37 154:9 155:105 156:102 157:107
158:69 159:139 160:23 161:73 162:123 163:88
164:262 165:127 166:106 167:273 168:301 169:61
170:180 171:3 192:5378 193:2385 194:2020 195:810
196:435 198:3599 199:3058 200:2613 202:3416 203:4798
204:3253 205:2105 206:2334 207:2480 208:2552 209:2580
210:588 211:246 212:880 213:729 214:7 215:19
216:2926 217:502 218:47 219:2
End of report
-----
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