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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 25 Feb, 2003
Analysis Summary
----------------
BGP routing table entries examined: 121439
Prefixes after maximum aggregation: 77267
Unique aggregates announced to Internet: 57865
Total ASes present in the Internet Routing Table: 14686
Origin-only ASes present in the Internet Routing Table: 12748
Origin ASes announcing only one prefix: 5758
Transit ASes present in the Internet Routing Table: 1938
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 13
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 22
Number of addresses announced to Internet: 1199002941
Equivalent to 71 /8s, 119 /16s and 85 /24s
Percentage of available address space announced: 32.3
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 55.5
Total number of prefixes smaller than registry allocations: 56741
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 20314
Total APNIC prefixes after maximum aggregation: 11926
Prefixes being announced from the APNIC address blocks: 18905
Unique aggregates announced from the APNIC address blocks: 11635
APNIC Region origin ASes present in the Internet Routing Table: 1733
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 294
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 106369184
Equivalent to 6 /8s, 87 /16s and 16 /24s
Percentage of available APNIC address space announced: 56.4
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 220/6
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 74789
Total ARIN prefixes after maximum aggregation: 47608
Prefixes being announced from the ARIN address blocks: 53034
Unique aggregates announced from the ARIN address blocks: 16546
ARIN Region origin ASes present in the Internet Routing Table: 8180
ARIN Region origin ASes announcing only one prefix: 2769
ARIN Region transit ASes present in the Internet Routing Table: 770
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 187427776
Equivalent to 11 /8s, 43 /16s and 235 /24s
Percentage of available ARIN address space announced: 69.8
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: 21032
Total RIPE prefixes after maximum aggregation: 15518
Prefixes being announced from the RIPE address blocks: 17575
Unique aggregates announced from the RIPE address blocks: 10990
RIPE Region origin ASes present in the Internet Routing Table: 4382
RIPE Region origin ASes announcing only one prefix: 2390
RIPE Region transit ASes present in the Internet Routing Table: 794
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 127317168
Equivalent to 7 /8s, 150 /16s and 180 /24s
Percentage of available RIPE address space announced: 75.9
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: 5292
Total LACNIC prefixes after maximum aggregation: 2215
Prefixes being announced from the LACNIC address blocks: 4635
Unique aggregates announced from the LACNIC address blocks: 3008
LACNIC Region origin ASes present in the Internet Routing Table: 327
LACNIC Region origin ASes announcing only one prefix: 82
LACNIC Region transit ASes present in the Internet Routing Table: 69
Average LACNIC Region AS path length visible: 5.8
Max LACNIC Region AS path length visible: 10
Number of LACNIC addresses announced to Internet: 12037888
Equivalent to 0 /8s, 183 /16s and 175 /24s
Percentage of available LACNIC address space announced: 71.8
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 1113 1135 814 Telstra Pty Ltd
703 414 368 319 UUNET
2907 395 1978 372 SINET Japan
17557 336 24 128 Pakistan Telecom
2764 326 340 293 connect.com.au pty ltd
7474 306 276 208 Optus Communications Pty Ltd
4134 304 2651 100 Data Communications Bureau
4814 259 79 15 China Telecom (Group)
3786 241 773 207 DACOM Corporation
4755 230 133 73 Videsh Sanchar Nigam Ltd. Aut
17676 229 3526 24 XTAGE CORPORATION
9583 220 33 13 Satyam Infoway Ltd.,
4766 207 2074 154 Korea Internet Exchange for "
9443 180 57 76 Primus Telecommunications
9800 166 205 41 CHINA UNICOM
4765 150 9 14 World Net & Services Co., Ltd
9238 132 8 19 TATA ISP
4716 129 737 123 TTnet
4739 128 57 116 Commerical Internet eXchange
9768 128 384 64 Korea Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1616 8889 1152 UUNET Technologies, Inc.
7018 1430 7183 969 AT&T
3908 1224 1589 484 Supernet, Inc.
1239 971 3134 685 Sprint
1 671 8087 435 GENUITY
852 605 1107 445 Telus Advanced Communications
7046 577 827 244 UUNET Technologies, Inc.
7843 560 402 206 Adelphia Corp.
4323 531 473 168 Time Warner Communications, I
4151 529 691 59 USDA
209 526 2107 335 Qwest
3561 500 2343 341 Cable & Wireless USA
690 498 73 308 Merit Network
7066 493 204 254 Virginia Polytechnic Institut
18566 486 114 7 Covad Communications
6197 480 555 114 BellSouth Network Solutions,
376 463 375 111 Reseau Interordinateurs Scien
705 449 165 196 UUNET Technologies, Inc.
2386 445 472 238 AT&T Data Communications Serv
6198 432 193 200 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 789 2247 651 UUNET - Commercial IP service
3301 316 1143 304 TeliaNet Sweden
3215 314 818 173 France Telecom Transpac
3320 263 1996 227 Deutsche Telekom AG
680 232 2054 229 DFN-IP service G-WiN
1257 219 370 196 SWIPnet Swedish IP Network
719 201 306 128 LANLINK autonomous system
5515 187 779 161 Sonera Solution Autonomous Sy
786 179 1874 179 The JANET IP Service
5400 161 70 95 BT Ignite European Backbone
8708 152 42 149 Romania Data Systems S.A.
20858 148 17 3 This AS will be used to conne
3303 144 517 143 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
8220 122 174 113 COLT Internet - International
2856 120 1299 110 BTnet UK Regional network
3269 111 751 61 TELECOM ITALIA
3233 108 11 12 RNC - Romanian Natioanal R&D
3246 104 358 101 Song Networks
3352 99 652 29 Ibernet, Internet Access Netw
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 284 98 105 ImpSat
7303 240 36 49 Telecom Argentina Stet-France
8151 209 316 114 UniNet S.A. de C.V.
11172 161 82 33 Servicios Alestra S.A de C.V
6503 158 207 110 AVANTEL, S.A.
16814 139 9 18 NSS, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
11340 110 3 38 Red Universitaria Nacional
10620 107 7 31 TVCABLE BOGOTA
6147 74 62 21 Telefonica Del Peru
1916 73 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 23 Chilesat Servicios Empresari
15311 71 27 36 Telefonica Empresas
8065 70 6 23 Empresas Publicas de Medellin
4270 69 18 10 Red de Interconexion Universi
11992 69 7 30 Integrated Systems
7927 65 5 40 Global One Venezuela
7080 64 4 1 Electronica y Comunicaciones
7984 61 11 40 Global One Colombia
15034 60 5 31 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1224 740 Supernet, Inc.
18566 486 479 Covad Communications
4151 529 470 USDA
7018 1430 461 AT&T
6197 480 366 BellSouth Network Solutions,
4323 531 363 Time Warner Communications, I
7843 560 354 Adelphia Corp.
376 463 352 Reseau Interordinateurs Scien
7046 577 333 UUNET Technologies, Inc.
11492 308 307 Cable One
1221 1113 299 Telstra Pty Ltd
6347 370 292 SAVVIS Communications Corpora
4355 402 290 EarthLink, Inc.
1239 971 286 Sprint
22927 295 281 TELEFONICA DE ARGENTINA
705 449 253 UUNET Technologies, Inc.
4814 259 244 China Telecom (Group)
7066 493 239 Virginia Polytechnic Institut
1 671 236 GENUITY
6198 432 232 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 66.205.199.0/24 25752 Neopolitan Networks
64513 PRIVATE 66.205.200.0/24 25752 Neopolitan Networks
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
64521 PRIVATE 198.189.23.0/24 2151 California State Uni
64521 PRIVATE 198.189.24.0/24 2151 California State Uni
64524 PRIVATE 198.189.134.0/24 2151 California State Uni
64524 PRIVATE 198.189.135.0/24 2151 California State Uni
64524 PRIVATE 198.189.136.0/24 2151 California State Uni
64524 PRIVATE 198.189.137.0/24 2151 California State Uni
64524 PRIVATE 198.189.138.0/24 2151 California State Uni
64521 PRIVATE 198.189.158.0/24 2151 California State Uni
64521 PRIVATE 198.189.235.0/24 2151 California State Uni
64521 PRIVATE 198.189.236.0/24 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
192.31.242.0/24 771 NASA Ames Research Center
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
192.136.86.0/24 719 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
192.153.136.0/21 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.243.36.0/23 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 /11:12 /12:46
/13:93 /14:238 /15:445 /16:7341 /17:1591 /18:2891
/19:8146 /20:8050 /21:5776 /22:8756 /23:10491 /24:66712
/25:154 /26:172 /27:92 /28:88 /29:57 /30:170
/31:2 /32:87
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 795 1224 Supernet, Inc.
7018 526 1430 AT&T
702 494 789 UUNET - Commercial IP service
18566 481 486 Covad Communications
701 475 1616 UUNET Technologies, Inc.
690 447 498 Merit Network
7066 392 493 Virginia Polytechnic Institut
1239 363 971 Sprint
6197 355 480 BellSouth Network Solutions,
6198 340 432 BellSouth Network Solutions,
7843 330 560 Adelphia Corp.
11492 307 308 Cable One
22927 294 295 TELEFONICA DE ARGENTINA
7046 279 577 UUNET Technologies, Inc.
6140 271 284 ImpSat
20115 256 381 Charter Communications
2386 242 445 AT&T Data Communications Serv
3215 239 314 France Telecom Transpac
7303 239 240 Telecom Argentina Stet-France
4355 229 402 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:652 13:1 15:4 17:2 20:9 24:843
25:1 32:83 34:1 38:54 40:18 44:2
55:1 57:15 61:452 62:502 63:1906 64:1386
65:1885 66:1441 67:214 68:281 69:51 80:319
81:89 128:143 129:189 130:40 131:81 132:13
133:2 134:144 135:4 136:195 137:117 138:105
139:72 140:103 141:110 142:94 143:46 144:110
145:18 146:262 147:85 148:266 149:73 150:44
151:96 152:252 153:51 154:3 155:107 156:42
157:39 158:123 159:142 160:34 161:58 162:134
163:80 164:270 165:139 166:80 167:302 168:393
169:54 170:303 171:8 192:5281 193:2420 194:2004
195:955 196:458 198:3588 199:3202 200:2867 202:3603
203:5068 204:3017 205:2034 206:2391 207:2386 208:2686
209:2791 210:731 211:324 212:949 213:733 214:21
215:21 216:3207 217:593 218:78 219:14 220:52
End of report
