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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 28 Mar, 2003
Analysis Summary
----------------
BGP routing table entries examined: 122971
Prefixes after maximum aggregation: 78082
Unique aggregates announced to Internet: 59143
Total ASes present in the Internet Routing Table: 14895
Origin-only ASes present in the Internet Routing Table: 12908
Origin ASes announcing only one prefix: 5845
Transit ASes present in the Internet Routing Table: 1987
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 255
Illegal AS announcements present in the Routing Table: 2
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1220281445
Equivalent to 72 /8s, 188 /16s and 4 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 55.0
Total number of prefixes smaller than registry allocations: 57715
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20713
Total APNIC prefixes after maximum aggregation: 12278
Prefixes being announced from the APNIC address blocks: 19165
Unique aggregates announced from the APNIC address blocks: 11844
APNIC Region origin ASes present in the Internet Routing Table: 1760
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 292
Average APNIC Region AS path length visible: 4.8
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 108308736
Equivalent to 6 /8s, 116 /16s and 169 /24s
Percentage of available APNIC address space announced: 64.2
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 75635
Total ARIN prefixes after maximum aggregation: 47937
Prefixes being announced from the ARIN address blocks: 53868
Unique aggregates announced from the ARIN address blocks: 16807
ARIN Region origin ASes present in the Internet Routing Table: 8258
ARIN Region origin ASes announcing only one prefix: 2789
ARIN Region transit ASes present in the Internet Routing Table: 796
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188930112
Equivalent to 11 /8s, 66 /16s and 216 /24s
Percentage of available ARIN address space announced: 70.4
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: 21380
Total RIPE prefixes after maximum aggregation: 15665
Prefixes being announced from the RIPE address blocks: 17894
Unique aggregates announced from the RIPE address blocks: 11860
RIPE Region origin ASes present in the Internet Routing Table: 4473
RIPE Region origin ASes announcing only one prefix: 2450
RIPE Region transit ASes present in the Internet Routing Table: 804
Average RIPE Region AS path length visible: 5.2
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 128527872
Equivalent to 7 /8s, 169 /16s and 46 /24s
Percentage of available RIPE address space announced: 76.6
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: 5241
Total LACNIC prefixes after maximum aggregation: 2202
Prefixes being announced from the LACNIC address blocks: 4654
Unique aggregates announced from the LACNIC address blocks: 2951
LACNIC Region origin ASes present in the Internet Routing Table: 331
LACNIC Region origin ASes announcing only one prefix: 86
LACNIC Region transit ASes present in the Internet Routing Table: 71
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 12404480
Equivalent to 0 /8s, 189 /16s and 71 /24s
Percentage of available LACNIC address space announced: 73.9
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 1105 1106 808 Telstra Pty Ltd
703 406 370 314 UUNET
2907 385 1971 364 SINET Japan
17557 376 28 139 Pakistan Telecom
2764 324 340 291 connect.com.au pty ltd
4134 313 2698 104 Data Communications Bureau
7474 307 276 208 Optus Communications Pty Ltd
4814 264 79 15 China Telecom (Group)
3786 251 772 212 DACOM Corporation
17676 237 3654 25 XTAGE CORPORATION
4755 224 135 71 Videsh Sanchar Nigam Ltd. Aut
9583 219 33 14 Satyam Infoway Ltd.,
4766 206 2074 155 Korea Internet Exchange for "
9443 179 58 78 Primus Telecommunications
9800 173 217 45 CHINA UNICOM
9238 135 8 17 TATA ISP
4716 128 717 122 TTnet
7539 128 166 121 TANet2, sponsored by NSC, TAI
4739 127 57 116 Commerical Internet eXchange
9768 125 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1581 8935 1119 UUNET Technologies, Inc.
7018 1355 7143 941 AT&T
3908 1081 1588 482 Supernet, Inc.
1239 972 3122 692 Sprint
1 690 8073 427 GENUITY
7132 674 5939 475 Southwestern Bell Internet Se
7843 606 404 155 Adelphia Corp.
3561 592 2352 344 Cable & Wireless USA
4151 582 691 60 USDA
4323 561 490 174 Time Warner Communications, I
852 553 1107 436 Telus Advanced Communications
18566 543 122 13 Covad Communications
705 535 208 269 UUNET Technologies, Inc.
209 532 2105 339 Qwest
690 503 73 316 Merit Network
2386 499 481 247 AT&T Data Communications Serv
7066 489 204 255 Virginia Polytechnic Institut
6197 474 338 196 BellSouth Network Solutions,
6198 448 222 175 BellSouth Network Solutions,
20115 419 173 275 Charter Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 783 2236 649 UUNET - Commercial IP service
3215 310 835 174 France Telecom Transpac
3301 310 1174 300 TeliaNet Sweden
3320 266 1996 229 Deutsche Telekom AG
680 232 2053 229 DFN-IP service G-WiN
5400 223 77 106 BT Ignite European Backbone
1257 217 328 191 SWIPnet Swedish IP Network
719 202 307 125 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 180 1874 180 The JANET IP Service
8708 153 42 150 Romania Data Systems S.A.
20858 153 17 3 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
8220 136 215 128 COLT Internet - International
12302 123 18 30 MobiFon S.A.
2856 119 1298 109 BTnet UK Regional network
3269 112 753 62 TELECOM ITALIA
3246 110 384 107 Song Networks
3233 107 11 12 RNC - Romanian Natioanal R&D
3352 106 734 32 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 290 98 107 ImpSat
7303 242 36 56 Telecom Argentina Stet-France
8151 217 349 116 UniNet S.A. de C.V.
11172 165 66 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 76 62 20 Telefonica Del Peru
1916 75 306 45 Fundacao de Amparo a Pesquisa
11992 74 8 36 Integrated Systems
6535 73 5 21 Chilesat Servicios Empresari
8065 73 6 18 Empresas Publicas de Medellin
15311 71 27 36 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
7080 64 4 1 Electronica y Comunicaciones
7927 64 5 39 Global One Venezuela
11830 64 4 25 Instituto Costarricense de El
7984 61 11 40 Global One Colombia
13999 60 36 8 Mega Cable S.A. de C.V.
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1081 599 Supernet, Inc.
18566 543 530 Covad Communications
4151 582 522 USDA
7843 606 451 Adelphia Corp.
7018 1355 414 AT&T
4323 561 387 Time Warner Communications, I
1221 1105 297 Telstra Pty Ltd
6347 373 291 SAVVIS Communications Corpora
1239 972 280 Sprint
6197 474 278 BellSouth Network Solutions,
4355 387 278 EarthLink, Inc.
6198 448 273 BellSouth Network Solutions,
22927 286 272 TELEFONICA DE ARGENTINA
705 535 266 UUNET Technologies, Inc.
1 690 263 GENUITY
2386 499 252 AT&T Data Communications Serv
4814 264 249 China Telecom (Group)
3561 592 248 Cable & Wireless USA
27364 265 247 Armstrong Cable Services
17557 376 237 Pakistan Telecom
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
Advertised Unallocated 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
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
192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM,
192.172.0.0/19 568 DISO-UNRRA
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 /9:3 /10:8 /11:13 /12:46
/13:90 /14:242 /15:456 /16:7366 /17:1636 /18:2930
/19:8264 /20:8225 /21:5866 /22:8852 /23:10648 /24:67428
/25:194 /26:198 /27:129 /28:123 /29:76 /30:89
/31:4 /32:67
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 671 1081 Supernet, Inc.
18566 538 543 Covad Communications
702 486 783 UUNET - Commercial IP service
7018 467 1355 AT&T
701 460 1581 UUNET Technologies, Inc.
690 452 503 Merit Network
7066 388 489 Virginia Polytechnic Institut
1239 369 972 Sprint
6198 355 448 BellSouth Network Solutions,
7843 355 606 Adelphia Corp.
6197 354 474 BellSouth Network Solutions,
2386 299 499 AT&T Data Communications Serv
20115 292 419 Charter Communications
22927 285 286 TELEFONICA DE ARGENTINA
705 281 535 UUNET Technologies, Inc.
6140 277 290 ImpSat
27364 258 265 Armstrong Cable Services
7303 241 242 Telecom Argentina Stet-France
3215 234 310 France Telecom Transpac
209 225 532 Qwest
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 12:667 13:1 15:4 17:2 20:10
24:770 25:1 32:93 38:63 40:18 44:2
55:1 57:16 61:459 62:514 63:1947 64:1463
65:1908 66:1604 67:199 68:300 69:68 80:334
81:109 128:149 129:205 130:45 131:83 132:11
133:11 134:145 135:4 136:113 137:111 138:106
139:67 140:149 141:85 142:97 143:47 144:103
145:16 146:266 147:90 148:274 149:73 150:42
151:66 152:248 153:52 154:2 155:106 156:45
157:44 158:123 159:140 160:33 161:61 162:127
163:79 164:295 165:145 166:74 167:322 168:398
169:56 170:316 171:6 192:5311 193:2397 194:2003
195:976 196:477 198:3579 199:3276 200:2890 202:3656
203:5048 204:3057 205:2022 206:2394 207:2411 208:2683
209:2806 210:732 211:330 212:974 213:777 214:20
215:21 216:3246 217:608 218:82 219:11 220:56
End of report
