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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 26 Sep, 2003
Analysis Summary
----------------
BGP routing table entries examined: 128029
Prefixes after maximum aggregation: 80343
Unique aggregates announced to Internet: 62007
Total ASes present in the Internet Routing Table: 15879
Origin-only ASes present in the Internet Routing Table: 13773
Origin ASes announcing only one prefix: 6255
Transit ASes present in the Internet Routing Table: 2106
Transit-only ASes present in the Internet Routing Table: 71
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 26
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 14
Number of addresses announced to Internet: 1227136420
Equivalent to 73 /8s, 36 /16s and 157 /24s
Percentage of available address space announced: 33.1
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 56.0
Total number of prefixes smaller than registry allocations: 56786
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 22632
Total APNIC prefixes after maximum aggregation: 12755
Prefixes being announced from the APNIC address blocks: 21038
Unique aggregates announced from the APNIC address blocks: 12357
APNIC Region origin ASes present in the Internet Routing Table: 1898
APNIC Region origin ASes announcing only one prefix: 542
APNIC Region transit ASes present in the Internet Routing Table: 306
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 122373120
Equivalent to 7 /8s, 75 /16s and 68 /24s
Percentage of available APNIC address space announced: 65.9
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 77428
Total ARIN prefixes after maximum aggregation: 48741
Prefixes being announced from the ARIN address blocks: 55216
Unique aggregates announced from the ARIN address blocks: 17653
ARIN Region origin ASes present in the Internet Routing Table: 8696
ARIN Region origin ASes announcing only one prefix: 2992
ARIN Region transit ASes present in the Internet Routing Table: 840
Average ARIN Region AS path length visible: 4.8
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 197322528
Equivalent to 11 /8s, 194 /16s and 231 /24s
Percentage of available ARIN address space announced: 73.5
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, 26624 - 27647, 29695 - 30719
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: 22548
Total RIPE prefixes after maximum aggregation: 16566
Prefixes being announced from the RIPE address blocks: 19048
Unique aggregates announced from the RIPE address blocks: 12885
RIPE Region origin ASes present in the Internet Routing Table: 4867
RIPE Region origin ASes announcing only one prefix: 2621
RIPE Region transit ASes present in the Internet Routing Table: 857
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 136558144
Equivalent to 8 /8s, 35 /16s and 182 /24s
Percentage of available RIPE address space announced: 74.0
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, 188/8, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5416
Total LACNIC prefixes after maximum aggregation: 2281
Prefixes being announced from the LACNIC address blocks: 4871
Unique aggregates announced from the LACNIC address blocks: 3167
LACNIC Region origin ASes present in the Internet Routing Table: 347
LACNIC Region origin ASes announcing only one prefix: 100
LACNIC Region transit ASes present in the Internet Routing Table: 73
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 13292544
Equivalent to 0 /8s, 202 /16s and 212 /24s
Percentage of available LACNIC address space announced: 39.6
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/7
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 970 1109 689 Telstra Pty Ltd
4755 410 135 74 Videsh Sanchar Nigam Ltd. Aut
2907 374 1879 348 SINET Japan
703 333 372 265 UUNET
4134 305 2228 109 Data Communications Bureau
2764 299 322 262 connect.com.au pty ltd
17557 291 21 139 Pakistan Telecom
7474 268 306 208 Optus Communications Pty Ltd
17676 265 3980 26 XTAGE CORPORATION
9583 260 38 26 Satyam Infoway Ltd.,
4766 238 2461 173 Korea Internet Exchange for "
3786 235 773 203 DACOM Corporation
9800 203 332 52 CHINA UNICOM
9929 187 160 36 China Netcom Corp.
9942 185 68 110 COMindico Australia
9443 183 58 83 Primus Telecommunications
9498 183 20 16 BHARTI BT INTERNET LTD.
4538 174 1586 21 China Education and Research
17642 154 40 115 RequestDSL BGP AS# for Sydney
9238 141 9 22 TATA ISP
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1459 8719 1015 UUNET Technologies, Inc.
7018 1396 7155 973 AT&T
3908 918 1573 492 Supernet, Inc.
1239 906 3031 652 Sprint
18566 690 176 8 Covad Communications
4323 669 574 193 Time Warner Communications, I
6197 614 397 270 BellSouth Network Solutions,
189 603 431 353 Genuity
3356 560 10730 470 Level 3 Communications, LLC
7843 530 466 134 Adelphia Corp.
852 517 1123 410 Telus Advanced Communications
209 500 2127 288 Qwest
6198 497 330 192 BellSouth Network Solutions,
7066 488 205 262 Virginia Polytechnic Institut
20115 473 204 296 Charter Communications
1 431 1000 268 GENUITY
10753 422 87 207 XCOM Technologies, INC.
690 411 59 276 Merit Network
705 408 184 249 UUNET Technologies, Inc.
4355 396 334 109 EarthLink, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 711 2121 590 UUNET - Commercial IP service
3301 296 1169 283 TeliaNet Sweden
3320 272 1989 232 Deutsche Telekom AG
8220 255 434 244 COLT Internet - International
680 232 2054 229 DFN-IP service G-WiN
1257 228 358 183 SWIPnet Swedish IP Network
719 193 307 123 LANLINK autonomous system
5515 186 779 148 Sonera Solution Autonomous Sy
3215 184 737 105 France Telecom Transpac
5400 183 174 134 BT Ignite European Backbone
786 179 1874 179 The JANET IP Service
8708 156 110 153 Romania Data Systems S.A.
3303 146 540 141 Swisscom Ltd
12302 127 18 34 MobiFon S.A.
3246 126 376 124 Song Networks
3269 119 853 65 TELECOM ITALIA
2856 113 1293 104 BTnet UK Regional network
25186 104 128 72 France Telecom Transpac's Tra
3352 98 824 34 Ibernet, Internet Access Netw
2647 95 4225 48 SITA
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 339 103 105 ImpSat
8151 232 366 121 UniNet S.A. de C.V.
7303 216 40 58 Telecom Argentina Stet-France
11172 187 79 44 Servicios Alestra S.A de C.V
16814 151 10 17 NSS, S.A.
6503 129 189 93 AVANTEL, S.A.
10620 129 8 25 TVCABLE BOGOTA
11340 103 3 36 Red Universitaria Nacional
11992 89 8 36 Integrated Systems
6147 84 70 19 Telefonica Del Peru
8065 82 8 17 Empresas Publicas de Medellin
6535 75 5 18 Chilesat Servicios Empresari
15311 75 14 38 Telefonica Empresas
11830 72 21 27 Instituto Costarricense de El
4270 68 18 9 Red de Interconexion Universi
7927 67 6 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
1916 61 270 41 Fundacao de Amparo a Pesquisa
7984 59 12 40 Global One Colombia
4926 57 4 48 Telintar S.A.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 690 682 Covad Communications
4323 669 476 Time Warner Communications, I
3908 918 426 Supernet, Inc.
7018 1396 423 AT&T
7843 530 396 Adelphia Corp.
6197 614 344 BellSouth Network Solutions,
4755 410 336 Videsh Sanchar Nigam Ltd. Aut
6198 497 305 BellSouth Network Solutions,
27364 314 291 Armstrong Cable Services
4355 396 287 EarthLink, Inc.
1221 970 281 Telstra Pty Ltd
22909 296 276 Comcast Cable Corporation
6347 356 275 SAVVIS Communications Corpora
1239 906 254 Sprint
189 603 250 Genuity
22773 282 250 Cox Communications, Inc. Atla
376 361 246 Reseau Interordinateurs Scien
25844 243 241 Skadden, Arps, Slate, Meagher
17676 265 239 XTAGE CORPORATION
6140 339 234 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica
65093 PRIVATE 148.170.28.0/22 7991 Savvis Communication
65093 PRIVATE 148.170.32.0/22 7991 Savvis Communication
65093 PRIVATE 148.170.92.0/22 7991 Savvis Communication
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom
23780 UNALLOCATED 211.15.112.0/20 2516 Kokusai Denshin Denw
23780 UNALLOCATED 211.19.224.0/19 2516 Kokusai Denshin Denw
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.43.230.0/24 4738 South Australian Academic Res
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.153.136.0/21 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:4 /10:6 /11:12 /12:55
/13:97 /14:265 /15:469 /16:7444 /17:1761 /18:3130
/19:8486 /20:8821 /21:6463 /22:9459 /23:10832 /24:70088
/25:152 /26:204 /27:168 /28:25 /29:9 /30:51
/31:0 /32:10
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 684 690 Covad Communications
3908 579 918 Supernet, Inc.
189 519 603 Genuity
7018 500 1396 AT&T
6197 478 614 BellSouth Network Solutions,
701 436 1459 UUNET Technologies, Inc.
702 426 711 UUNET - Commercial IP service
10753 390 422 XCOM Technologies, INC.
7066 384 488 Virginia Polytechnic Institut
6198 383 497 BellSouth Network Solutions,
690 371 411 Merit Network
1239 316 906 Sprint
20115 316 473 Charter Communications
27364 308 314 Armstrong Cable Services
3356 276 560 Level 3 Communications, LLC
25844 243 243 Skadden, Arps, Slate, Meagher
4355 214 396 EarthLink, Inc.
7843 214 530 Adelphia Corp.
3320 211 272 Deutsche Telekom AG
14824 199 226 NewSouth Communications Corp.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:709 13:1 15:4 16:1 17:3
20:6 24:826 25:1 32:84 38:47 40:23
43:1 44:2 55:1 57:14 61:326 62:403
63:1878 64:1736 65:1954 66:2632 67:284 68:359
69:253 80:422 81:127 82:16 128:146 129:166
130:61 131:83 132:18 133:1 134:169 135:9
136:186 137:116 138:129 139:49 140:162 141:138
142:101 143:44 144:88 145:14 146:276 147:65
148:302 149:79 150:121 151:66 152:212 153:58
154:7 155:128 156:58 157:54 158:134 159:140
160:45 161:69 162:362 163:75 164:314 165:150
166:101 167:305 168:178 169:96 170:325 171:9
192:5329 193:2452 194:1977 195:1160 196:462 198:3596
199:2727 200:2987 202:3979 203:5306 204:3000 205:2035
206:2337 207:2505 208:2563 209:2695 210:926 211:361
212:926 213:933 214:16 215:22 216:3271 217:729
218:107 219:35 220:116 221:11 222:1
End of report
