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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 Fri 28 Jun, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116644
Prefixes after maximum aggregation: 75629
Unique aggregates announced to Internet: 54528
Total ASes present in the Internet Routing Table: 13309
Origin-only ASes present in the Internet Routing Table: 11529
Origin ASes announcing only one prefix: 5103
Transit ASes present in the Internet Routing Table: 1780
Transit-only ASes present in the Internet Routing Table: 50
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 36
Number of addresses announced to Internet: 1191677468
Equivalent to 71 /8s, 7 /16s and 142 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 48735
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18610
Total APNIC prefixes after maximum aggregation: 11104
Prefixes being announced from the APNIC address blocks: 17075
Unique aggregates announced from the APNIC address blocks: 10459
APNIC Region origin ASes present in the Internet Routing Table: 1549
APNIC Region origin ASes announcing only one prefix: 505
APNIC Region transit ASes present in the Internet Routing Table: 274
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87561632
Equivalent to 5 /8s, 56 /16s and 21 /24s
Percentage of available APNIC address space announced: 64.7
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: 78798
Total ARIN prefixes after maximum aggregation: 49934
Prefixes being announced from the ARIN address blocks: 54241
Unique aggregates announced from the ARIN address blocks: 17942
ARIN Region origin ASes present in the Internet Routing Table: 7830
ARIN Region origin ASes announcing only one prefix: 2506
ARIN Region transit ASes present in the Internet Routing Table: 772
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 188948820
Equivalent to 11 /8s, 67 /16s and 33 /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 - 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: 19234
Total RIPE prefixes after maximum aggregation: 14591
Prefixes being announced from the RIPE address blocks: 15933
Unique aggregates announced from the RIPE address blocks: 10566
RIPE Region origin ASes present in the Internet Routing Table: 3881
RIPE Region origin ASes announcing only one prefix: 2092
RIPE Region transit ASes present in the Internet Routing Table: 719
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 111946528
Equivalent to 6 /8s, 172 /16s and 43 /24s
Percentage of available RIPE address space announced: 74.1
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 1261 1222 901 Telstra Pty Ltd
4538 405 1194 16 China Education and Research
703 401 358 319 UUNET Technologies, Inc.
2907 384 1876 358 SINET Japan
2764 369 359 338 connect.com.au pty ltd
7474 313 292 208 Optus Communications Pty Ltd
17557 302 20 114 Pakistan Telecom
4755 296 117 82 Videsh Sanchar Nigam Ltd. Aut
4134 289 2114 105 Data Communications Bureau
9443 252 45 66 Primus Telecommunications
4713 225 1009 105 NTT Communications Corporatio
4766 216 1504 154 Korea Internet Exchange for "
4814 201 79 14 China Telecom (Group) - Beiji
9583 175 32 5 Satyam Infoway Ltd.,
17676 151 2338 22 XTAGE CORPORATION
7539 148 200 143 TANet2, sponsored by NSC, TAI
9768 145 386 74 Korea Telecom
7657 139 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 116 186 39 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1021 2615 844 UUNET Technologies, Inc.
3301 402 925 351 TeliaNet Sweden
3352 277 535 26 Ibernet, Internet Access Netw
3215 264 598 165 France Telecom / &Equant
3320 241 1947 193 Deutsche Telekom AG
680 233 2149 230 DFN-IP service G-WiN
5515 206 783 172 Sonera Finland Autonomous Sys
5400 205 83 94 Concert European Core Network
1257 204 430 201 SWIPnet Swedish IP Network
719 192 306 130 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 141 23 138 Romania Data Systems S.A.
3303 135 546 134 Swisscom Ltd
12302 128 18 35 MobiFon S.A.
2856 126 786 116 BTnet UK Regional network
3269 111 690 68 TELECOM ITALIA
3246 110 301 105 Song Networks / Clinet
8297 105 52 58 Teleglobe Autonomous System i
2874 103 85 39 Global One Services AB
3233 102 6 56 RNC - Romanian Natioanal R&D
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2149 2865 349 2318 Performance Systems, Inc.
701 1866 9257 1391 UUNET Technologies, Inc.
7018 1296 7469 933 AT&T
3908 919 1642 497 Supernet, Inc.
1239 820 3360 645 Sprint
1 700 8131 451 GENUITY
852 682 1173 448 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 615 2003 350 Qwest
7843 606 354 240 Adelphia Corp.
7046 590 860 377 UUNET Technologies, Inc.
174 588 4608 38 PSINet Inc.
7132 580 659 134 Southwestern Bell Internet Se
690 511 75 317 Merit Network
7066 476 202 250 Virginia Polytechnic Institut
7029 475 167 58 Alltel Information Services,
3549 439 836 314 Global Crossing
2914 389 2100 382 Verio, Inc.
15290 381 297 196 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
174 588 550 PSINet Inc.
701 1866 475 UUNET Technologies, Inc.
7132 580 446 Southwestern Bell Internet Se
3908 919 422 Supernet, Inc.
7029 475 417 Alltel Information Services,
4538 405 389 China Education and Research
4323 632 373 Time Warner Communications, I
7843 606 366 Adelphia Corp.
7018 1296 363 AT&T
1221 1261 360 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 289 273 USDA
209 615 265 Qwest
6347 342 262 SAVVIS Communications Corpora
4355 306 253 EarthLink, Inc.
3352 277 251 Ibernet, Internet Access Netw
1 700 249 GENUITY
852 682 234 Telus Advanced Communications
7066 476 226 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65111 PRIVATE 64.200.152.0/23 7911 Williams Communicati
65111 PRIVATE 64.200.154.0/23 7911 Williams Communicati
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
192.5.154.0/24 16588 Spider Web Hosting Solutions
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.
192.83.16.0/20 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 /8:19 /9:6 /10:7 /11:12 /12:36
/13:90 /14:234 /15:417 /16:7252 /17:1452 /18:2633
/19:7694 /20:7298 /21:5132 /22:7889 /23:9631 /24:66153
/25:194 /26:169 /27:80 /28:86 /29:45 /30:88
/31:0 /32:27
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
2149 2329 2865 Performance Systems, Inc.
702 629 1021 UUNET Technologies, Inc.
701 521 1866 UUNET Technologies, Inc.
3908 506 919 Supernet, Inc.
174 491 588 PSINet Inc.
690 452 511 Merit Network
7843 416 606 Adelphia Corp.
7066 381 476 Virginia Polytechnic Institut
7029 373 475 Alltel Information Services,
7018 353 1296 AT&T
209 272 615 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
3301 238 402 TeliaNet Sweden
6198 235 322 BellSouth Network Solutions,
7046 232 590 UUNET Technologies, Inc.
18566 224 228 Covad Communications
6517 212 234 Yipes Communications, Inc.
1580 204 234 HQ, 5th Signal Command
1239 202 820 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 9:1 12:503 13:10 15:2 17:6
20:2 24:798 25:1 32:41 38:2663 40:6
44:1 57:13 61:268 62:216 63:1916 64:1245
65:1409 66:999 67:88 68:47 80:259 81:30
128:60 129:133 130:22 131:48 132:11 133:3
134:121 135:8 136:245 137:93 138:145 139:70
140:170 141:121 142:83 143:40 144:153 145:14
146:177 147:138 148:217 149:91 150:40 151:66
152:261 153:33 154:19 155:109 156:77 157:127
158:70 159:128 160:18 161:69 162:215 163:101
164:269 165:133 166:230 167:172 168:131 169:60
170:358 171:3 192:5484 193:2363 194:2074 195:937
196:397 198:3659 199:3204 200:2559 202:3257 203:4672
204:3418 205:2198 206:2764 207:2611 208:2676 209:2674
210:587 211:226 212:900 213:646 214:9 215:19
216:2862 217:453 218:44 219:81
End of report
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