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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 Thu 06 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113712
Prefixes after maximum aggregation: 73267
Unique aggregates announced to Internet: 52531
Total ASes present in the Internet Routing Table: 13190
Origin-only ASes present in the Internet Routing Table: 11435
Origin ASes announcing only one prefix: 5028
Transit ASes present in the Internet Routing Table: 1755
Transit-only ASes present in the Internet Routing Table: 54
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 18
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 1
Prefixes being announced from the IANA Reserved Address blocks: 38
Number of addresses announced to Internet: 1179678924
Equivalent to 70 /8s, 80 /16s and 120 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 46440
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18324
Total APNIC prefixes after maximum aggregation: 11013
Prefixes being announced from the APNIC address blocks: 16742
Unique aggregates announced from the APNIC address blocks: 9813
APNIC Region origin ASes present in the Internet Routing Table: 1529
APNIC Region origin ASes announcing only one prefix: 503
APNIC Region transit ASes present in the Internet Routing Table: 267
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 90099296
Equivalent to 5 /8s, 94 /16s and 206 /24s
Percentage of available APNIC address space announced: 66.6
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76113
Total ARIN prefixes after maximum aggregation: 47759
Prefixes being announced from the ARIN address blocks: 54235
Unique aggregates announced from the ARIN address blocks: 16588
ARIN Region origin ASes present in the Internet Routing Table: 7781
ARIN Region origin ASes announcing only one prefix: 2476
ARIN Region transit ASes present in the Internet Routing Table: 767
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 193118020
Equivalent to 11 /8s, 130 /16s and 191 /24s
Percentage of available ARIN address space announced: 71.9
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 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19275
Total RIPE prefixes after maximum aggregation: 14495
Prefixes being announced from the RIPE address blocks: 16006
Unique aggregates announced from the RIPE address blocks: 10560
RIPE Region origin ASes present in the Internet Routing Table: 3826
RIPE Region origin ASes announcing only one prefix: 2049
RIPE Region transit ASes present in the Internet Routing Table: 705
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 110085920
Equivalent to 6 /8s, 143 /16s and 199 /24s
Percentage of available RIPE address space announced: 72.9
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
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1265 1222 907 Telstra Pty Ltd
4538 486 1258 18 China Education and Research
2907 426 1861 367 SINET Japan
703 405 350 324 UUNET Technologies, Inc.
2764 378 359 345 connect.com.au pty ltd
7474 307 291 203 Optus Communications Pty Ltd
4134 288 2116 101 Data Communications Bureau
17557 271 18 104 Pakistan Telecom
9443 268 44 65 Primus Telecommunications
4755 265 107 77 Videsh Sanchar Nigam Ltd. Aut
4766 225 1516 156 Korea Internet Exchange for "
4814 184 71 14 China Telecom (Group) - Beiji
4713 183 1009 106 NTT Communications Corporatio
9583 182 32 5 Satyam Infoway Ltd.,
7539 155 219 149 TANet2, sponsored by NSC, TAI
9768 147 387 76 Korea Telecom
17676 146 2258 23 XTAGE CORPORATION
7657 136 22 86 The Internet Group Limited
4780 116 186 39 Digital United Inc.
9800 115 187 23 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1025 2622 850 UUNET Technologies, Inc.
3301 397 908 348 TeliaNet Sweden
3352 277 537 27 Ibernet, Internet Access Netw
5515 266 783 176 Sonera Finland Autonomous Sys
3215 263 598 162 France Telecom / &Equant
3320 234 1947 187 Deutsche Telekom AG
680 231 2149 230 DFN-IP service G-WiN
1257 206 430 203 SWIPnet Swedish IP Network
5400 203 83 94 Concert European Core Network
719 190 290 128 LANLINK autonomous system
786 179 1857 178 The JANET IP Service
8708 148 23 140 Romania Data Systems S.A.
12302 132 10 44 MobiFon S.A.
2856 125 789 115 BTnet UK Regional network
3303 117 546 116 Swisscom Ltd
8297 114 57 65 Teleglobe Autonomous System i
3269 113 692 70 TELECOM ITALIA
3246 107 300 101 Song Networks / Clinet
3233 103 7 53 RNC - Romanian Natioanal R&D
2830 97 251 73 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2002 9076 1421 UUNET Technologies, Inc.
7018 1296 7548 937 AT&T
3908 901 1641 491 Supernet, Inc.
1239 817 3430 651 Sprint
1 806 8152 451 GENUITY
705 801 181 278 UUNET Technologies, Inc.
852 801 1192 451 Telus Advanced Communications
7046 637 901 428 UUNET Technologies, Inc.
4323 628 436 257 Time Warner Communications, I
209 604 1973 337 Qwest
690 584 80 372 Merit Network
7132 571 607 138 Southwestern Bell Internet Se
7843 523 365 62 Adelphia Corp.
3549 509 857 324 Global Crossing
7066 476 202 249 Virginia Polytechnic Institut
2914 396 2108 389 Verio, Inc.
15290 388 299 202 AT&T Canada IES
3741 344 731 236 The Internet Solution
2149 341 190 282 Performance Systems, Inc.
6197 341 245 166 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
705 801 523 UUNET Technologies, Inc.
4538 486 468 China Education and Research
7843 523 461 Adelphia Corp.
7132 571 433 Southwestern Bell Internet Se
3908 901 410 Supernet, Inc.
4323 628 371 Time Warner Communications, I
7018 1296 359 AT&T
1221 1265 358 Telstra Pty Ltd
1 806 355 GENUITY
852 801 350 Telus Advanced Communications
11371 292 286 Rhythms NetConnections
4151 287 271 USDA
209 604 267 Qwest
6347 337 258 SAVVIS Communications Corpora
3352 277 250 Ibernet, Internet Access Netw
7029 263 248 Alltel Information Services,
4355 280 243 EarthLink, Inc.
7066 476 227 Virginia Polytechnic Institut
18566 222 218 Covad Communications
6198 320 215 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
192.0.2.0/24 1103 SURFnet BV
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
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.26.98.0/24 1239 Sprint
192.44.0.0/19 702 UUNET Technologies, Inc.
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.14.0/24 5515 Sonera Finland Autonomous Sys
192.83.16.0/20 5515 Sonera Finland Autonomous Sys
192.83.25.0/24 5515 Sonera Finland Autonomous Sys
192.83.32.0/19 5515 Sonera Finland Autonomous Sys
192.83.96.0/22 5515 Sonera Finland Autonomous Sys
192.83.100.0/24 5515 Sonera Finland Autonomous Sys
192.91.198.0/24 2568 CTS Network Services
192.92.167.0/24 297 NASA Science Network
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.135.248.0/23 109 Cisco Systems, Inc.
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
192.140.0.0/16 5511 France Telecom
192.152.213.0/24 1239 Sprint
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:20 /9:6 /10:7 /11:12 /12:34
/13:86 /14:233 /15:415 /16:7234 /17:1440 /18:2599
/19:7587 /20:7212 /21:5128 /22:7822 /23:9505 /24:63636
/25:210 /26:181 /27:80 /28:94 /29:47 /30:85
/31:1 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 628 1025 UUNET Technologies, Inc.
705 598 801 UUNET Technologies, Inc.
701 559 2002 UUNET Technologies, Inc.
3908 488 901 Supernet, Inc.
690 462 584 Merit Network
7066 381 476 Virginia Polytechnic Institut
7018 343 1296 AT&T
7843 315 523 Adelphia Corp.
7046 276 637 UUNET Technologies, Inc.
209 272 604 Qwest
1 259 806 GENUITY
7029 248 263 Alltel Information Services,
6197 245 341 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 397 TeliaNet Sweden
6198 233 320 BellSouth Network Solutions,
6517 219 241 Yipes Communications, Inc.
18566 218 222 Covad Communications
1239 209 817 Sprint
3549 205 509 Global Crossing
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:508 13:10 15:2 17:6
20:2 24:784 25:1 32:41 38:8 40:6
44:1 57:13 61:249 62:199 63:1944 64:1231
65:1620 66:968 67:84 68:162 80:239 81:28
128:61 129:137 130:23 131:51 132:11 133:3
134:118 135:8 136:247 137:90 138:150 139:57
140:174 141:120 142:82 143:37 144:152 145:13
146:174 147:138 148:204 149:92 150:40 151:97
152:268 153:33 154:14 155:105 156:76 157:131
158:69 159:127 160:18 161:67 162:154 163:99
164:275 165:141 166:226 167:171 168:119 169:58
170:353 171:2 192:5495 193:2393 194:2152 195:969
196:433 198:3715 199:3232 200:2518 202:3132 203:4588
204:3259 205:2176 206:2568 207:2718 208:2669 209:2753
210:601 211:224 212:941 213:633 214:9 215:19
216:3002 217:459 218:42 219:41
End of report
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