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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 26 Jul, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114389
Prefixes after maximum aggregation: 74038
Unique aggregates announced to Internet: 54702
Total ASes present in the Internet Routing Table: 13437
Origin-only ASes present in the Internet Routing Table: 11626
Origin ASes announcing only one prefix: 5149
Transit ASes present in the Internet Routing Table: 1811
Transit-only ASes present in the Internet Routing Table: 46
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 8
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1178357460
Equivalent to 70 /8s, 60 /16s and 78 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46307
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19013
Total APNIC prefixes after maximum aggregation: 11242
Prefixes being announced from the APNIC address blocks: 17514
Unique aggregates announced from the APNIC address blocks: 10631
APNIC Region origin ASes present in the Internet Routing Table: 1576
APNIC Region origin ASes announcing only one prefix: 510
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: 13
Number of APNIC addresses announced to Internet: 89762144
Equivalent to 5 /8s, 89 /16s and 169 /24s
Percentage of available APNIC address space announced: 59.0
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76001
Total ARIN prefixes after maximum aggregation: 48225
Prefixes being announced from the ARIN address blocks: 54048
Unique aggregates announced from the ARIN address blocks: 18044
ARIN Region origin ASes present in the Internet Routing Table: 7904
ARIN Region origin ASes announcing only one prefix: 2525
ARIN Region transit ASes present in the Internet Routing Table: 785
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190269520
Equivalent to 11 /8s, 87 /16s and 72 /24s
Percentage of available ARIN address space announced: 70.9
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: 19368
Total RIPE prefixes after maximum aggregation: 14571
Prefixes being announced from the RIPE address blocks: 16083
Unique aggregates announced from the RIPE address blocks: 10467
RIPE Region origin ASes present in the Internet Routing Table: 3912
RIPE Region origin ASes announcing only one prefix: 2114
RIPE Region transit ASes present in the Internet Routing Table: 738
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 112871712
Equivalent to 6 /8s, 186 /16s and 73 /24s
Percentage of available RIPE address space announced: 74.8
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 1256 1207 900 Telstra Pty Ltd
4538 559 1278 26 China Education and Research
703 412 360 325 UUNET
2907 361 1848 338 SINET Japan
2764 359 358 330 connect.com.au pty ltd
7474 317 296 213 Optus Communications Pty Ltd
17557 296 20 103 Pakistan Telecom
4134 293 2142 103 Data Communications Bureau
4755 293 112 77 Videsh Sanchar Nigam Ltd. Aut
9443 252 45 67 Primus Telecommunications
4766 249 1506 156 Korea Internet Exchange for "
4814 215 79 14 China Telecom (Group)
9583 180 32 5 Satyam Infoway Ltd.,
17676 167 2594 32 XTAGE CORPORATION
9768 143 384 73 Korea Telecom
7657 129 22 88 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4780 122 186 39 Digital United Inc.
7539 120 184 119 TANet2, sponsored by NSC, TAI
4621 115 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 899 2441 757 UUNET - Commercial IP service
3301 395 923 345 TeliaNet Sweden
5515 311 783 173 Sonera Solution Autonomous Sy
3215 277 640 175 France Telecom Transpac
3352 275 531 31 Ibernet, Internet Access Netw
3320 265 1964 204 Deutsche Telekom AG
680 235 2150 232 DFN-IP service G-WiN
5400 209 85 97 BT Ignite European Backbone
1257 207 430 202 SWIPnet Swedish IP Network
719 182 306 127 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 141 548 140 Swisscom Ltd
8708 141 23 137 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 122 10 29 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 106 10 9 RNC - Romanian Natioanal R&D
2874 102 85 39 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1822 9165 1374 UUNET Technologies, Inc.
7018 1315 7402 944 AT&T
3908 953 1653 493 Supernet, Inc.
1239 805 3260 639 Sprint
852 754 1175 452 Telus Advanced Communications
1 691 8067 442 GENUITY
7843 644 360 236 Adelphia Corp.
4323 630 439 258 Time Warner Communications, I
7132 583 659 133 Southwestern Bell Internet Se
209 542 2026 353 Qwest
7046 537 889 332 UUNET Technologies, Inc.
690 521 75 330 Merit Network
7066 485 203 254 Virginia Polytechnic Institut
7029 462 165 56 Alltel Information Services,
3549 429 828 309 Global Crossing
2149 388 176 288 Performance Systems, Inc.
15290 378 297 193 AT&T Canada IES
6197 372 611 37 BellSouth Network Solutions,
2914 367 2083 367 Verio, Inc.
6347 343 370 76 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 559 533 China Education and Research
3908 953 460 Supernet, Inc.
7132 583 450 Southwestern Bell Internet Se
7843 644 408 Adelphia Corp.
7029 462 406 Alltel Information Services,
4323 630 372 Time Warner Communications, I
7018 1315 371 AT&T
1221 1256 356 Telstra Pty Ltd
6197 372 335 BellSouth Network Solutions,
852 754 302 Telus Advanced Communications
4151 289 273 USDA
6347 343 267 SAVVIS Communications Corpora
4355 324 255 EarthLink, Inc.
1 691 249 GENUITY
3352 275 244 Ibernet, Internet Access Netw
7066 485 231 Virginia Polytechnic Institut
18566 235 231 Covad Communications
7303 278 219 Telecom Argentina Stet-France
4755 293 216 Videsh Sanchar Nigam Ltd. Aut
7046 537 205 UUNET Technologies, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
55000 RESERVED 81.5.64.0/20 5467 MIPT-NET
65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd
65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd
65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd
65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd
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
192.44.0.0/19 702 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
192.92.167.0/24 297 NASA Science Network
192.108.46.0/23 680 DFN-IP service G-WiN
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
192.140.0.0/16 5511 France Telecom
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 /8:18 /9:6 /10:7 /11:12 /12:35
/13:86 /14:235 /15:415 /16:7276 /17:1456 /18:2662
/19:7705 /20:7477 /21:5260 /22:7959 /23:9739 /24:63379
/25:199 /26:158 /27:84 /28:75 /29:48 /30:74
/31:0 /32:24
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
702 543 899 UUNET - Commercial IP service
3908 531 953 Supernet, Inc.
701 503 1822 UUNET Technologies, Inc.
690 463 521 Merit Network
7843 449 644 Adelphia Corp.
7066 388 485 Virginia Polytechnic Institut
7018 368 1315 AT&T
7029 365 462 Alltel Information Services,
6197 257 372 BellSouth Network Solutions,
6198 239 311 BellSouth Network Solutions,
3301 233 395 TeliaNet Sweden
18566 231 235 Covad Communications
209 213 542 Qwest
3215 210 277 France Telecom Transpac
1580 203 216 ANOSCEUR
7046 201 537 UUNET Technologies, Inc.
3352 200 275 Ibernet, Internet Access Netw
3320 197 265 Deutsche Telekom AG
1239 196 805 Sprint
1 189 691 GENUITY
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 12:516 13:10 15:2 17:6 20:3
24:750 25:1 32:41 38:9 40:6 44:1
57:13 61:317 62:237 63:1896 64:1220 65:1399
66:998 67:91 68:70 80:250 81:38 128:65
129:131 130:22 131:53 132:11 133:2 134:124
135:8 136:244 137:95 138:151 139:72 140:169
141:123 142:78 143:43 144:143 145:14 146:189
147:139 148:242 149:80 150:39 151:66 152:269
153:34 154:14 155:114 156:70 157:127 158:70
159:136 160:19 161:74 162:214 163:91 164:266
165:132 166:216 167:179 168:295 169:60 170:242
171:3 192:5460 193:2368 194:2098 195:924 196:414
198:3629 199:3189 200:2627 202:3326 203:4783 204:3252
205:2208 206:2681 207:2529 208:2609 209:2722 210:593
211:238 212:897 213:662 214:9 215:19 216:2837
217:470 218:30
End of report
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