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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 04:00 +10GMT Tue 15 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116167
Prefixes after maximum aggregation: 74611
Unique aggregates announced to Internet: 55470
Total ASes present in the Internet Routing Table: 13902
Origin-only ASes present in the Internet Routing Table: 12041
Origin ASes announcing only one prefix: 5391
Transit ASes present in the Internet Routing Table: 1861
Transit-only ASes present in the Internet Routing Table: 56
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: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1193005704
Equivalent to 71 /8s, 27 /16s and 210 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48320
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18888
Total APNIC prefixes after maximum aggregation: 11408
Prefixes being announced from the APNIC address blocks: 17389
Unique aggregates announced from the APNIC address blocks: 11020
APNIC Region origin ASes present in the Internet Routing Table: 1621
APNIC Region origin ASes announcing only one prefix: 520
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 98588576
Equivalent to 5 /8s, 224 /16s and 87 /24s
Percentage of available APNIC address space announced: 64.8
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: 72820
Total ARIN prefixes after maximum aggregation: 46219
Prefixes being announced from the ARIN address blocks: 50921
Unique aggregates announced from the ARIN address blocks: 15377
ARIN Region origin ASes present in the Internet Routing Table: 7821
ARIN Region origin ASes announcing only one prefix: 2580
ARIN Region transit ASes present in the Internet Routing Table: 750
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 181469280
Equivalent to 10 /8s, 209 /16s and 0 /24s
Percentage of available ARIN address space announced: 67.6
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
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: 19776
Total RIPE prefixes after maximum aggregation: 14928
Prefixes being announced from the RIPE address blocks: 16451
Unique aggregates announced from the RIPE address blocks: 10896
RIPE Region origin ASes present in the Internet Routing Table: 4088
RIPE Region origin ASes announcing only one prefix: 2210
RIPE Region transit ASes present in the Internet Routing Table: 757
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 115887232
Equivalent to 6 /8s, 232 /16s and 76 /24s
Percentage of available RIPE address space announced: 76.7
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
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4683
Total LACNIC prefixes after maximum aggregation: 2056
Prefixes being announced from the LACNIC address blocks: 4118
Unique aggregates announced from the LACNIC address blocks: 2623
LACNIC Region origin ASes present in the Internet Routing Table: 316
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 6.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11468032
Equivalent to 0 /8s, 174 /16s and 253 /24s
Percentage of available LACNIC address space announced: 68.4
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1199 1187 879 Telstra Pty Ltd
703 394 368 310 UUNET
2907 352 1768 331 SINET Japan
2764 342 356 314 connect.com.au pty ltd
7474 302 275 206 Optus Communications Pty Ltd
4134 296 2284 96 Data Communications Bureau
17557 280 21 109 Pakistan Telecom
4755 265 139 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1808 157 Korea Internet Exchange for "
4814 229 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 184 57 71 Primus Telecommunications
9583 161 32 5 Satyam Infoway Ltd.,
4515 135 102 76 Star Internet Services Ltd.
9768 134 385 73 Korea Telecom
4716 128 736 122 TTnet
7657 127 23 84 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1794 9199 1279 UUNET Technologies, Inc.
7018 1350 7182 940 AT&T
3908 1063 1651 505 Supernet, Inc.
1239 875 3202 658 Sprint
852 737 1145 456 Telus Advanced Communications
7843 729 371 303 Adelphia Corp.
1 656 8042 433 GENUITY
7132 595 672 69 Southwestern Bell Internet Se
7046 580 878 299 UUNET Technologies, Inc.
209 572 2064 335 Qwest
4323 518 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
705 445 135 206 UUNET Technologies, Inc.
2548 427 1117 267 Business Internet, Inc.
3549 404 725 290 Global Crossing
6198 396 180 195 BellSouth Network Solutions,
6197 392 601 40 BellSouth Network Solutions,
4355 379 292 104 EarthLink, Inc.
2914 364 2020 357 Verio, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 875 2407 728 UUNET - Commercial IP service
3301 384 1164 334 TeliaNet Sweden
3215 297 677 172 France Telecom Transpac
3320 256 1966 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 212 783 176 Sonera Solution Autonomous Sy
1257 206 446 202 SWIPnet Swedish IP Network
5400 205 83 97 BT Ignite European Backbone
719 192 307 131 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 161 790 138 BTnet UK Regional network
8708 155 41 147 Romania Data Systems S.A.
3303 143 516 142 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
3246 122 373 115 Song Networks
8220 112 168 104 COLT Internet - International
5511 110 192 88 France Telecom
3233 106 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 103 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 203 330 110 UniNet S.A. de C.V.
7303 174 27 49 Telecom Argentina Stet-France
11172 169 88 34 Servicios Alestra S.A de C.V
6140 153 78 44 ImpSat USA, Inc.
6503 150 174 108 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
13999 105 20 7 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11340 79 2 24 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
11992 72 7 30 Integrated Systems
4270 68 18 10 Red de Interconexion Universi
15034 64 5 33 TIBA SA
4926 62 4 50 Telintar S.A.
7984 62 27 42 Global One Colombia
2277 61 16 3 ECUANET - CORPORACION ECUATOR
8065 60 6 16 Empresas Publicas de Medellin
7927 58 4 40 Global One Venezuela
6535 55 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1063 558 Supernet, Inc.
7132 595 526 Southwestern Bell Internet Se
7843 729 426 Adelphia Corp.
7018 1350 410 AT&T
4323 518 354 Time Warner Communications, I
6197 392 352 BellSouth Network Solutions,
1221 1199 320 Telstra Pty Ltd
1580 316 304 ANOSCEUR
18566 308 304 Covad Communications
852 737 281 Telus Advanced Communications
7046 580 281 UUNET Technologies, Inc.
4151 292 276 USDA
4355 379 275 EarthLink, Inc.
6347 347 272 SAVVIS Communications Corpora
705 445 239 UUNET Technologies, Inc.
209 572 237 Qwest
7066 489 232 Virginia Polytechnic Institut
376 342 232 Reseau Interordinateurs Scien
1 656 223 GENUITY
1239 875 217 Sprint
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 7170 AT&T Government Markets
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.236.0.0/16 568 DISO-UNRRA
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
192.91.198.0/24 2568 CTS Network Services
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.156.0.0/19 568 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 /8:18 /9:5 /10:7 /11:12 /12:46
/13:90 /14:241 /15:429 /16:7273 /17:1515 /18:2721
/19:7887 /20:7552 /21:5330 /22:8208 /23:9949 /24:64090
/25:177 /26:221 /27:116 /28:76 /29:55 /30:101
/31:1 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 633 1063 Supernet, Inc.
7843 541 729 Adelphia Corp.
702 540 875 UUNET - Commercial IP service
701 492 1794 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 431 1350 AT&T
7066 387 489 Virginia Polytechnic Institut
6198 312 396 BellSouth Network Solutions,
1580 303 316 ANOSCEUR
18566 302 308 Covad Communications
6197 276 392 BellSouth Network Solutions,
7046 267 580 UUNET Technologies, Inc.
1239 260 875 Sprint
209 254 572 Qwest
3301 229 384 TeliaNet Sweden
3215 228 297 France Telecom Transpac
11492 220 225 Cable One
4355 217 379 EarthLink, Inc.
3320 187 256 Deutsche Telekom AG
5400 185 205 BT Ignite European Backbone
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 12:561 13:10 15:4 17:7 20:4
24:848 25:1 32:42 38:26 40:9 44:1
55:1 57:14 61:360 62:244 63:1891 64:1286
65:1586 66:1193 67:113 68:147 69:8 80:306
81:61 128:126 129:126 130:19 131:62 132:9
133:2 134:128 135:7 136:513 137:106 138:201
139:70 140:168 141:66 142:69 143:49 144:150
145:18 146:241 147:222 148:247 149:119 150:35
151:77 152:295 153:38 154:8 155:104 156:102
157:105 158:72 159:134 160:21 161:74 162:123
163:85 164:263 165:127 166:105 167:288 168:301
169:62 170:196 171:6 192:5379 193:2386 194:2018
195:821 196:436 198:3631 199:3076 200:2527 202:3448
203:4816 204:3289 205:2108 206:2389 207:2506 208:2569
209:2562 210:596 211:277 212:890 213:775 214:9
215:19 216:2928 217:517 218:50 219:2
End of report
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