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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 21 Jan, 2003
Analysis Summary
----------------
BGP routing table entries examined: 119853
Prefixes after maximum aggregation: 76524
Unique aggregates announced to Internet: 57501
Total ASes present in the Internet Routing Table: 14443
Origin-only ASes present in the Internet Routing Table: 12551
Origin ASes announcing only one prefix: 5647
Transit ASes present in the Internet Routing Table: 1892
Transit-only ASes present in the Internet Routing Table: 60
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: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 30
Number of addresses announced to Internet: 1191327449
Equivalent to 71 /8s, 2 /16s and 54 /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: 55674
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20397
Total APNIC prefixes after maximum aggregation: 11891
Prefixes being announced from the APNIC address blocks: 18879
Unique aggregates announced from the APNIC address blocks: 11343
APNIC Region origin ASes present in the Internet Routing Table: 1715
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 104576160
Equivalent to 6 /8s, 59 /16s and 180 /24s
Percentage of available APNIC address space announced: 68.8
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: 73774
Total ARIN prefixes after maximum aggregation: 47151
Prefixes being announced from the ARIN address blocks: 52001
Unique aggregates announced from the ARIN address blocks: 16040
ARIN Region origin ASes present in the Internet Routing Table: 8072
ARIN Region origin ASes announcing only one prefix: 2720
ARIN Region transit ASes present in the Internet Routing Table: 749
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 185702896
Equivalent to 11 /8s, 17 /16s and 153 /24s
Percentage of available ARIN address space announced: 69.2
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 - 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: 20558
Total RIPE prefixes after maximum aggregation: 15291
Prefixes being announced from the RIPE address blocks: 17164
Unique aggregates announced from the RIPE address blocks: 11484
RIPE Region origin ASes present in the Internet Routing Table: 4274
RIPE Region origin ASes announcing only one prefix: 2323
RIPE Region transit ASes present in the Internet Routing Table: 773
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 122335296
Equivalent to 7 /8s, 74 /16s and 176 /24s
Percentage of available RIPE address space announced: 81.0
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, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5118
Total LACNIC prefixes after maximum aggregation: 2191
Prefixes being announced from the LACNIC address blocks: 4478
Unique aggregates announced from the LACNIC address blocks: 2935
LACNIC Region origin ASes present in the Internet Routing Table: 324
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: 5.7
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 11859200
Equivalent to 0 /8s, 180 /16s and 245 /24s
Percentage of available LACNIC address space announced: 70.7
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1133 1184 834 Telstra Pty Ltd
7474 559 277 205 Optus Communications Pty Ltd
703 405 368 317 UUNET
2907 390 1976 366 SINET Japan
2764 337 341 306 connect.com.au pty ltd
17557 329 24 129 Pakistan Telecom
4134 298 2505 97 Data Communications Bureau
4814 261 79 15 China Telecom (Group)
4755 238 134 74 Videsh Sanchar Nigam Ltd. Aut
3786 237 772 204 DACOM Corporation
17676 228 3556 27 XTAGE CORPORATION
4766 200 2075 149 Korea Internet Exchange for "
9583 191 33 12 Satyam Infoway Ltd.,
9443 188 57 77 Primus Telecommunications
9800 167 205 41 CHINA UNICOM
4765 136 7 13 World Net & Services Co., Ltd
4716 129 737 123 TTnet
9768 129 384 64 Korea Telecom
9238 126 7 17 TATA ISP
7713 124 46 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1610 9014 1184 UUNET Technologies, Inc.
7018 1436 7092 969 AT&T
3908 1202 1636 508 Supernet, Inc.
1239 967 3160 678 Sprint
1 654 8076 430 GENUITY
852 610 1140 447 Telus Advanced Communications
7843 587 392 226 Adelphia Corp.
7046 558 825 258 UUNET Technologies, Inc.
4323 528 472 167 Time Warner Communications, I
690 521 76 326 Merit Network
209 520 2102 329 Qwest
7066 492 204 252 Virginia Polytechnic Institut
6197 464 561 104 BellSouth Network Solutions,
18566 431 112 5 Covad Communications
705 429 133 185 UUNET Technologies, Inc.
2386 426 451 239 AT&T Data Communications Serv
6198 421 185 198 BellSouth Network Solutions,
4355 408 313 116 EarthLink, Inc.
3549 402 709 296 Global Crossing
15290 394 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 808 2306 671 UUNET - Commercial IP service
3301 319 1141 298 TeliaNet Sweden
3215 313 803 174 France Telecom Transpac
3320 254 1995 227 Deutsche Telekom AG
680 237 2166 235 DFN-IP service G-WiN
5515 214 783 175 Sonera Solution Autonomous Sy
1257 206 400 195 SWIPnet Swedish IP Network
786 177 1873 177 The JANET IP Service
719 171 306 130 LANLINK autonomous system
5400 160 68 96 BT Ignite European Backbone
8708 156 42 146 Romania Data Systems S.A.
3303 144 517 143 Swisscom Ltd
20858 142 17 3 This AS will be used to conne
2856 130 1302 117 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
8220 122 174 113 COLT Internet - International
3246 117 377 114 Song Networks
3269 113 754 63 TELECOM ITALIA
5511 106 193 83 France Telecom
3233 104 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 316 98 106 ImpSat
7303 228 36 52 Telecom Argentina Stet-France
8151 207 317 113 UniNet S.A. de C.V.
11172 160 83 33 Servicios Alestra S.A de C.V
6503 157 207 107 AVANTEL, S.A.
16814 140 9 14 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
10620 98 6 32 TVCABLE BOGOTA
11340 82 2 33 Red Universitaria Nacional
6147 78 58 20 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
15311 72 27 37 Telefonica Empresas
6535 70 4 21 Chilesat Servicios Empresari
4270 68 18 10 Red de Interconexion Universi
11992 68 7 32 Integrated Systems
8065 67 6 14 Empresas Publicas de Medellin
7984 62 11 40 Global One Colombia
11830 59 4 20 Instituto Costarricense de El
15034 59 5 31 TIBA SA
4926 57 4 47 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1202 694 Supernet, Inc.
7018 1436 467 AT&T
18566 431 426 Covad Communications
7843 587 361 Adelphia Corp.
4323 528 361 Time Warner Communications, I
6197 464 360 BellSouth Network Solutions,
7474 559 354 Optus Communications Pty Ltd
7046 558 300 UUNET Technologies, Inc.
1221 1133 299 Telstra Pty Ltd
11492 297 296 Cable One
4355 408 292 EarthLink, Inc.
6347 372 292 SAVVIS Communications Corpora
1239 967 289 Sprint
4151 329 271 USDA
22927 289 267 TELEFONICA DE ARGENTINA
4814 261 246 China Telecom (Group)
705 429 244 UUNET Technologies, Inc.
7066 492 240 Virginia Polytechnic Institut
376 345 240 Reseau Interordinateurs Scien
1 654 224 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64514 PRIVATE 198.188.18.0/24 2151 California State Uni
64514 PRIVATE 198.188.28.0/24 2151 California State Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
64514 PRIVATE 207.62.82.0/23 2151 California State Uni
64514 PRIVATE 207.62.84.0/22 2151 California State Uni
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
158.255.3.0/24 702 UUNET - Commercial IP service
178.54.59.0/24 7018 AT&T
188.1.0.0/16 680 DFN-IP service G-WiN
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
192.119.135.0/24 270 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
192.156.164.0/24 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 /8:17 /9:3 /10:8 /11:12 /12:44
/13:91 /14:240 /15:443 /16:7333 /17:1558 /18:2834
/19:8045 /20:7834 /21:5642 /22:8565 /23:10276 /24:65972
/25:150 /26:185 /27:114 /28:142 /29:193 /30:109
/31:0 /32:43
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 769 1202 Supernet, Inc.
7018 519 1436 AT&T
702 495 808 UUNET - Commercial IP service
690 470 521 Merit Network
18566 426 431 Covad Communications
701 424 1610 UUNET Technologies, Inc.
7066 391 492 Virginia Polytechnic Institut
7843 361 587 Adelphia Corp.
1239 356 967 Sprint
6197 341 464 BellSouth Network Solutions,
6198 335 421 BellSouth Network Solutions,
7474 309 559 Optus Communications Pty Ltd
6140 304 316 ImpSat
11492 296 297 Cable One
22927 288 289 TELEFONICA DE ARGENTINA
7046 254 558 UUNET Technologies, Inc.
3215 240 313 France Telecom Transpac
20115 229 349 Charter Communications
2386 228 426 AT&T Data Communications Serv
4355 227 408 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:637 13:1 15:6 17:3 20:7 24:790
25:1 32:82 38:37 40:18 44:1 55:1
57:16 61:435 62:474 63:1876 64:1344 65:1812
66:1371 67:202 68:224 69:35 80:345 81:100
128:128 129:188 130:22 131:73 132:9 133:4
134:157 135:7 136:200 137:112 138:208 139:68
140:122 141:103 142:94 143:44 144:149 145:16
146:255 147:125 148:266 149:78 150:42 151:94
152:258 153:37 154:7 155:104 156:49 157:63
158:119 159:139 160:29 161:57 162:132 163:84
164:279 165:137 166:85 167:303 168:391 169:57
170:289 171:8 178:1 192:5363 193:2403 194:1969
195:913 196:456 198:3580 199:3042 200:2783 202:3634
203:5030 204:3017 205:2111 206:2356 207:2415 208:2668
209:2701 210:690 211:319 212:895 213:707 214:13
215:22 216:3193 217:553 218:71 219:16 220:42
End of report
