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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 02 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 113430
Prefixes after maximum aggregation: 73560
Unique aggregates announced to Internet: 54150
Total ASes present in the Internet Routing Table: 13304
Origin-only ASes present in the Internet Routing Table: 11517
Origin ASes announcing only one prefix: 5102
Transit ASes present in the Internet Routing Table: 1787
Transit-only ASes present in the Internet Routing Table: 48
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: 2
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: 1195183068
Equivalent to 71 /8s, 61 /16s and 11 /24s
Percentage of available address space announced: 32.2
Percentage of allocated address space announced: 60.1
Percentage of available address space allocated: 53.7
Total number of prefixes smaller than registry allocations: 45859
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18599
Total APNIC prefixes after maximum aggregation: 11048
Prefixes being announced from the APNIC address blocks: 17113
Unique aggregates announced from the APNIC address blocks: 10451
APNIC Region origin ASes present in the Internet Routing Table: 1549
APNIC Region origin ASes announcing only one prefix: 504
APNIC Region transit ASes present in the Internet Routing Table: 271
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 87862368
Equivalent to 5 /8s, 60 /16s and 172 /24s
Percentage of available APNIC address space announced: 65.0
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: 75660
Total ARIN prefixes after maximum aggregation: 47966
Prefixes being announced from the ARIN address blocks: 53806
Unique aggregates announced from the ARIN address blocks: 17641
ARIN Region origin ASes present in the Internet Routing Table: 7832
ARIN Region origin ASes announcing only one prefix: 2517
ARIN Region transit ASes present in the Internet Routing Table: 774
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 192624468
Equivalent to 11 /8s, 123 /16s and 55 /24s
Percentage of available ARIN address space announced: 71.8
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 - 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: 19171
Total RIPE prefixes after maximum aggregation: 14546
Prefixes being announced from the RIPE address blocks: 15896
Unique aggregates announced from the RIPE address blocks: 10539
RIPE Region origin ASes present in the Internet Routing Table: 3875
RIPE Region origin ASes announcing only one prefix: 2081
RIPE Region transit ASes present in the Internet Routing Table: 721
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 111921696
Equivalent to 6 /8s, 171 /16s and 202 /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 1263 1222 903 Telstra Pty Ltd
4538 443 1258 17 China Education and Research
703 401 358 319 UUNET Technologies, Inc.
2764 370 359 339 connect.com.au pty ltd
2907 365 1864 340 SINET Japan
7474 313 292 208 Optus Communications Pty Ltd
4755 297 117 82 Videsh Sanchar Nigam Ltd. Aut
4134 288 2114 104 Data Communications Bureau
17557 278 19 109 Pakistan Telecom
9443 261 45 66 Primus Telecommunications
4713 226 1009 106 NTT Communications Corporatio
4766 215 1504 154 Korea Internet Exchange for "
4814 205 79 14 China Telecom (Group) - Beiji
9583 177 32 5 Satyam Infoway Ltd.,
17676 152 2354 23 XTAGE CORPORATION
7539 148 201 143 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
4621 115 11 61 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 969 2499 802 UUNET Technologies, Inc.
3301 395 924 345 TeliaNet Sweden
3352 279 535 29 Ibernet, Internet Access Netw
3215 266 614 165 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 203 430 200 SWIPnet Swedish IP Network
719 190 306 128 LANLINK autonomous system
786 178 1873 177 The JANET IP Service
8708 140 23 137 Romania Data Systems S.A.
3303 135 546 134 Swisscom Ltd
2856 126 786 116 BTnet UK Regional network
12302 121 17 34 MobiFon S.A.
3269 111 690 68 TELECOM ITALIA
3246 110 301 105 Song Networks / Clinet
5511 109 192 88 France Telecom
3233 102 6 56 RNC - Romanian Natioanal R&D
2874 101 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1856 9256 1382 UUNET Technologies, Inc.
7018 1288 7453 928 AT&T
3908 919 1643 499 Supernet, Inc.
1239 822 3345 648 Sprint
1 696 8091 446 GENUITY
852 682 1173 448 Telus Advanced Communications
4323 632 438 259 Time Warner Communications, I
209 615 2011 351 Qwest
7843 609 355 242 Adelphia Corp.
7046 583 875 371 UUNET Technologies, Inc.
7132 579 659 133 Southwestern Bell Internet Se
690 511 75 317 Merit Network
7029 478 167 58 Alltel Information Services,
7066 478 202 251 Virginia Polytechnic Institut
2149 468 198 357 Performance Systems, Inc.
3549 441 836 317 Global Crossing
2914 406 2100 383 Verio, Inc.
15290 380 297 195 AT&T Canada IES
6197 347 248 169 BellSouth Network Solutions,
6347 342 370 80 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7132 579 446 Southwestern Bell Internet Se
4538 443 426 China Education and Research
3908 919 420 Supernet, Inc.
7029 478 420 Alltel Information Services,
4323 632 373 Time Warner Communications, I
7843 609 367 Adelphia Corp.
7018 1288 360 AT&T
1221 1263 360 Telstra Pty Ltd
11371 292 286 Rhythms NetConnections
4151 289 273 USDA
209 615 264 Qwest
6347 342 262 SAVVIS Communications Corpora
4355 304 252 EarthLink, Inc.
1 696 250 GENUITY
3352 279 250 Ibernet, Internet Access Netw
852 682 234 Telus Advanced Communications
7066 478 227 Virginia Polytechnic Institut
4454 249 226 OIR Telecommunications, State
18566 228 224 Covad Communications
6198 323 218 BellSouth Network Solutions,
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
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 /8:20 /9:6 /10:7 /11:12 /12:36
/13:87 /14:233 /15:417 /16:7234 /17:1448 /18:2637
/19:7696 /20:7319 /21:5148 /22:7909 /23:9639 /24:62965
/25:178 /26:161 /27:73 /28:66 /29:42 /30:73
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 598 969 UUNET Technologies, Inc.
701 507 1856 UUNET Technologies, Inc.
3908 507 919 Supernet, Inc.
690 452 511 Merit Network
7843 419 609 Adelphia Corp.
7066 383 478 Virginia Polytechnic Institut
7029 376 478 Alltel Information Services,
7018 352 1288 AT&T
209 271 615 Qwest
6197 249 347 BellSouth Network Solutions,
11371 245 292 Rhythms NetConnections
6198 236 323 BellSouth Network Solutions,
3301 232 395 TeliaNet Sweden
7046 227 583 UUNET Technologies, Inc.
18566 224 228 Covad Communications
1239 209 822 Sprint
1580 204 234 HQ, 5th Signal Command
3352 203 279 Ibernet, Internet Access Netw
3215 199 266 France Telecom / &Equant
4454 195 249 OIR Telecommunications, State
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:501 13:10 15:2 17:6
20:2 24:797 25:1 32:41 38:9 40:6
44:1 57:13 61:271 62:203 63:1904 64:1250
65:1403 66:994 67:89 68:46 80:257 81:32
128:61 129:135 130:22 131:48 132:11 133:2
134:120 135:8 136:244 137:91 138:148 139:69
140:175 141:122 142:81 143:40 144:153 145:14
146:183 147:138 148:220 149:91 150:40 151:67
152:261 153:33 154:14 155:98 156:77 157:126
158:68 159:128 160:18 161:69 162:213 163:98
164:269 165:129 166:223 167:172 168:131 169:61
170:351 171:3 192:5460 193:2348 194:2056 195:926
196:390 198:3656 199:3196 200:2562 202:3238 203:4668
204:3255 205:2174 206:2675 207:2553 208:2666 209:2646
210:590 211:227 212:905 213:647 214:9 215:19
216:2840 217:464 218:45 219:81
End of report
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