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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sat 24 May, 2003
Analysis Summary
----------------
BGP routing table entries examined: 126290
Prefixes after maximum aggregation: 78819
Unique aggregates announced to Internet: 59185
Total ASes present in the Internet Routing Table: 15238
Origin-only ASes present in the Internet Routing Table: 13203
Origin ASes announcing only one prefix: 5975
Transit ASes present in the Internet Routing Table: 2035
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 4
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 18
Number of addresses announced to Internet: 1230973504
Equivalent to 73 /8s, 95 /16s and 42 /24s
Percentage of available address space announced: 33.2
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 55.9
Total number of prefixes smaller than registry allocations: 54888
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 21532
Total APNIC prefixes after maximum aggregation: 12485
Prefixes being announced from the APNIC address blocks: 19927
Unique aggregates announced from the APNIC address blocks: 12044
APNIC Region origin ASes present in the Internet Routing Table: 1807
APNIC Region origin ASes announcing only one prefix: 523
APNIC Region transit ASes present in the Internet Routing Table: 302
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 113449376
Equivalent to 6 /8s, 195 /16s and 25 /24s
Percentage of available APNIC address space announced: 61.1
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: 77776
Total ARIN prefixes after maximum aggregation: 48205
Prefixes being announced from the ARIN address blocks: 55799
Unique aggregates announced from the ARIN address blocks: 16548
ARIN Region origin ASes present in the Internet Routing Table: 8430
ARIN Region origin ASes announcing only one prefix: 2877
ARIN Region transit ASes present in the Internet Routing Table: 815
Average ARIN Region AS path length visible: 4.6
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 192116224
Equivalent to 11 /8s, 115 /16s and 118 /24s
Percentage of available ARIN address space announced: 71.6
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, 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: 21629
Total RIPE prefixes after maximum aggregation: 15880
Prefixes being announced from the RIPE address blocks: 18132
Unique aggregates announced from the RIPE address blocks: 12072
RIPE Region origin ASes present in the Internet Routing Table: 4593
RIPE Region origin ASes announcing only one prefix: 2489
RIPE Region transit ASes present in the Internet Routing Table: 818
Average RIPE Region AS path length visible: 5.5
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 131343360
Equivalent to 7 /8s, 212 /16s and 36 /24s
Percentage of available RIPE address space announced: 71.2
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: 5349
Total LACNIC prefixes after maximum aggregation: 2249
Prefixes being announced from the LACNIC address blocks: 4766
Unique aggregates announced from the LACNIC address blocks: 2970
LACNIC Region origin ASes present in the Internet Routing Table: 334
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 12571136
Equivalent to 0 /8s, 191 /16s and 210 /24s
Percentage of available LACNIC address space announced: 37.5
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 1081 1103 770 Telstra Pty Ltd
4755 411 134 71 Videsh Sanchar Nigam Ltd. Aut
2907 376 1927 352 SINET Japan
17557 373 26 150 Pakistan Telecom
703 346 373 275 UUNET
2764 315 342 279 connect.com.au pty ltd
4814 295 86 19 China Telecom (Group)
7474 270 290 203 Optus Communications Pty Ltd
17676 248 3830 17 XTAGE CORPORATION
3786 242 773 209 DACOM Corporation
4134 235 2042 117 Data Communications Bureau
9583 225 34 17 Satyam Infoway Ltd.,
4766 213 2475 159 Korea Internet Exchange for "
9443 184 58 84 Primus Telecommunications
9800 181 260 59 CHINA UNICOM
9498 142 10 17 BHARTI BT INTERNET LTD.
4739 137 57 125 Commerical Internet eXchange
9238 134 8 17 TATA ISP
7539 128 140 102 TANet2, sponsored by NSC, TAI
4716 127 729 121 TTnet
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1558 8933 1099 UUNET Technologies, Inc.
7018 1334 7208 922 AT&T
4151 1280 691 60 USDA
7132 966 6475 207 Southwestern Bell Internet Se
1239 942 3010 664 Sprint
3908 924 1556 484 Supernet, Inc.
189 705 341 292 Genuity
7843 669 348 184 Adelphia Corp.
1 658 2607 448 GENUITY
4323 597 525 175 Time Warner Communications, I
18566 579 160 8 Covad Communications
2386 567 507 271 AT&T Data Communications Serv
852 534 1123 422 Telus Advanced Communications
705 510 272 333 UUNET Technologies, Inc.
209 489 2104 294 Qwest
6197 487 341 196 BellSouth Network Solutions,
7066 485 204 260 Virginia Polytechnic Institut
690 476 68 315 Merit Network
20115 472 195 288 Charter Communications
6198 464 229 177 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 757 2175 643 UUNET - Commercial IP service
3320 346 2004 228 Deutsche Telekom AG
3301 308 1157 295 TeliaNet Sweden
3215 302 852 173 France Telecom Transpac
680 232 2053 229 DFN-IP service G-WiN
1257 227 327 189 SWIPnet Swedish IP Network
8220 224 384 211 COLT Internet - International
719 215 307 124 LANLINK autonomous system
5400 204 121 115 BT Ignite European Backbone
5515 181 795 152 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
8708 154 44 149 Romania Data Systems S.A.
3303 143 549 140 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
20858 124 17 3 This AS will be used to conne
2856 122 1299 112 BTnet UK Regional network
3269 116 819 63 TELECOM ITALIA
3246 112 365 110 Song Networks
3352 108 780 32 Ibernet, Internet Access Netw
2874 100 85 40 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 300 98 108 ImpSat
7303 245 36 58 Telecom Argentina Stet-France
8151 212 350 118 UniNet S.A. de C.V.
11172 169 66 41 Servicios Alestra S.A de C.V
16814 137 9 18 NSS, S.A.
6503 136 190 99 AVANTEL, S.A.
10620 113 7 33 TVCABLE BOGOTA
11340 105 3 33 Red Universitaria Nacional
6147 96 62 20 Telefonica Del Peru
11992 87 8 37 Integrated Systems
8065 80 8 14 Empresas Publicas de Medellin
6535 74 5 23 Chilesat Servicios Empresari
15311 71 12 35 Telefonica Empresas
1916 68 304 42 Fundacao de Amparo a Pesquisa
4270 68 18 9 Red de Interconexion Universi
13999 68 36 8 Mega Cable S.A. de C.V.
7738 67 186 12 Telecomunicacoes da Bahia S.A
11830 65 4 26 Instituto Costarricense de El
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4151 1280 1220 USDA
7132 966 759 Southwestern Bell Internet Se
18566 579 571 Covad Communications
7843 669 485 Adelphia Corp.
3908 924 440 Supernet, Inc.
4323 597 422 Time Warner Communications, I
189 705 413 Genuity
7018 1334 412 AT&T
4755 411 340 Videsh Sanchar Nigam Ltd. Aut
1221 1081 311 Telstra Pty Ltd
2386 567 296 AT&T Data Communications Serv
6197 487 291 BellSouth Network Solutions,
4355 401 290 EarthLink, Inc.
6198 464 287 BellSouth Network Solutions,
22927 298 285 TELEFONICA DE ARGENTINA
6347 361 282 SAVVIS Communications Corpora
1239 942 278 Sprint
4814 295 276 China Telecom (Group)
27364 294 274 Armstrong Cable Services
22909 272 257 Comcast Cable Corporation
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65516 PRIVATE 61.232.70.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.71.0/24 17621 China Netcom Corp.
65516 PRIVATE 61.232.72.0/22 17621 China Netcom Corp.
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
137.0.0.0/13 568 DISO-UNRRA
158.0.0.0/13 568 DISO-UNRRA
192.16.52.0/24 1239 Sprint
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
192.136.135.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.158.254.0/24 705 UUNET Technologies, Inc.
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 /9:5 /10:8 /11:13 /12:51
/13:98 /14:254 /15:475 /16:7422 /17:1682 /18:2972
/19:8424 /20:8415 /21:6107 /22:9035 /23:10651 /24:70149
/25:163 /26:212 /27:52 /28:26 /29:12 /30:21
/31:0 /32:25
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
189 628 705 Genuity
3908 577 924 Supernet, Inc.
18566 573 579 Covad Communications
702 464 757 UUNET - Commercial IP service
7018 462 1334 AT&T
701 435 1558 UUNET Technologies, Inc.
7843 433 669 Adelphia Corp.
690 428 476 Merit Network
7066 382 485 Virginia Polytechnic Institut
6197 363 487 BellSouth Network Solutions,
6198 363 464 BellSouth Network Solutions,
1239 351 942 Sprint
2386 347 567 AT&T Data Communications Serv
20115 333 472 Charter Communications
3320 289 346 Deutsche Telekom AG
27364 287 294 Armstrong Cable Services
4814 281 295 China Telecom (Group)
1 245 658 GENUITY
22927 236 298 TELEFONICA DE ARGENTINA
3215 225 302 France Telecom Transpac
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:706 13:1 15:4 16:1 17:3 20:8
24:831 25:1 32:87 38:123 40:19 44:2
55:1 57:17 61:460 62:525 63:1879 64:1768
65:1927 66:2455 67:174 68:385 69:146 80:347
81:124 128:144 129:180 130:46 131:80 132:12
133:1 134:177 135:4 136:115 137:107 138:108
139:65 140:138 141:117 142:93 143:44 144:103
145:14 146:270 147:95 148:289 149:70 150:44
151:79 152:241 153:57 154:7 155:109 156:48
157:38 158:126 159:145 160:39 161:75 162:132
163:74 164:306 165:144 166:94 167:330 168:408
169:62 170:317 171:7 192:5311 193:2429 194:1978
195:1032 196:465 198:3575 199:3934 200:2962 202:3777
203:5240 204:3002 205:2058 206:2376 207:2372 208:2625
209:2832 210:809 211:332 212:978 213:783 214:20
215:23 216:3252 217:611 218:90 219:38 220:95
221:2
End of report
