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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 Wed 07 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114594
Prefixes after maximum aggregation: 73989
Unique aggregates announced to Internet: 54750
Total ASes present in the Internet Routing Table: 13511
Origin-only ASes present in the Internet Routing Table: 11693
Origin ASes announcing only one prefix: 5197
Transit ASes present in the Internet Routing Table: 1818
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: 23
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: 34
Number of addresses announced to Internet: 1187940645
Equivalent to 70 /8s, 206 /16s and 137 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 54.1
Total number of prefixes smaller than registry allocations: 46512
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18881
Total APNIC prefixes after maximum aggregation: 11223
Prefixes being announced from the APNIC address blocks: 17389
Unique aggregates announced from the APNIC address blocks: 10621
APNIC Region origin ASes present in the Internet Routing Table: 1582
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 278
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 90482400
Equivalent to 5 /8s, 100 /16s and 166 /24s
Percentage of available APNIC address space announced: 59.5
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: 76365
Total ARIN prefixes after maximum aggregation: 48161
Prefixes being announced from the ARIN address blocks: 54041
Unique aggregates announced from the ARIN address blocks: 18134
ARIN Region origin ASes present in the Internet Routing Table: 7950
ARIN Region origin ASes announcing only one prefix: 2558
ARIN Region transit ASes present in the Internet Routing Table: 789
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190398528
Equivalent to 11 /8s, 89 /16s and 64 /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: 19347
Total RIPE prefixes after maximum aggregation: 14605
Prefixes being announced from the RIPE address blocks: 16015
Unique aggregates announced from the RIPE address blocks: 10476
RIPE Region origin ASes present in the Internet Routing Table: 3926
RIPE Region origin ASes announcing only one prefix: 2122
RIPE Region transit ASes present in the Internet Routing Table: 740
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 113087488
Equivalent to 6 /8s, 189 /16s and 148 /24s
Percentage of available RIPE address space announced: 74.9
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 1251 1194 901 Telstra Pty Ltd
4538 564 1279 27 China Education and Research
703 408 376 320 UUNET
2907 364 1848 342 SINET Japan
2764 360 358 331 connect.com.au pty ltd
7474 318 296 213 Optus Communications Pty Ltd
17557 299 20 95 Pakistan Telecom
4134 292 2158 103 Data Communications Bureau
4755 285 112 77 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 181 32 5 Satyam Infoway Ltd.,
17676 175 2722 35 XTAGE CORPORATION
9443 170 45 68 Primus Telecommunications
7539 146 173 141 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 116 11 64 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 911 2434 760 UUNET - Commercial IP service
3301 396 923 346 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 269 1965 208 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 210 85 98 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
8708 142 24 138 Romania Data Systems S.A.
3303 141 548 140 Swisscom Ltd
2856 128 787 118 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 107 10 9 RNC - Romanian Natioanal R&D
2874 101 85 39 Global One Services AB
8297 94 46 51 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1805 9226 1370 UUNET Technologies, Inc.
7018 1315 7434 939 AT&T
3908 1002 1657 488 Supernet, Inc.
1239 814 3248 649 Sprint
852 748 1174 447 Telus Advanced Communications
1 698 8051 447 GENUITY
4323 639 442 263 Time Warner Communications, I
7843 624 367 228 Adelphia Corp.
7132 592 663 137 Southwestern Bell Internet Se
690 522 75 333 Merit Network
7046 519 886 322 UUNET Technologies, Inc.
209 507 2057 343 Qwest
7066 486 203 254 Virginia Polytechnic Institut
7029 451 164 54 Alltel Information Services,
3549 436 824 313 Global Crossing
6197 378 599 48 BellSouth Network Solutions,
15290 377 297 193 AT&T Canada IES
2149 368 166 271 Performance Systems, Inc.
2914 364 2077 364 Verio, Inc.
6347 347 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 564 537 China Education and Research
3908 1002 514 Supernet, Inc.
7132 592 455 Southwestern Bell Internet Se
7029 451 397 Alltel Information Services,
7843 624 396 Adelphia Corp.
7018 1315 376 AT&T
4323 639 376 Time Warner Communications, I
1221 1251 350 Telstra Pty Ltd
6197 378 330 BellSouth Network Solutions,
852 748 301 Telus Advanced Communications
1657 279 277 University of Louisville
4151 289 273 USDA
6347 347 272 SAVVIS Communications Corpora
4355 328 258 EarthLink, Inc.
1 698 251 GENUITY
18566 238 234 Covad Communications
7066 486 232 Virginia Polytechnic Institut
376 325 224 Reseau Interordinateurs Scien
7303 270 210 Telecom Argentina Stet-France
4755 285 208 Videsh Sanchar Nigam Ltd. Aut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26705 UNALLOCATED 12.111.19.0/24 701 UUNET Technologies,
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
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
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
192.119.135.0/24 270 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
192.156.164.0/24 19548 Adelphia Business Solutions
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 /9:7 /10:7 /11:12 /12:37
/13:85 /14:231 /15:418 /16:7289 /17:1473 /18:2680
/19:7728 /20:7526 /21:5272 /22:7991 /23:9680 /24:63306
/25:201 /26:180 /27:99 /28:94 /29:70 /30:113
/31:0 /32:77
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 588 1002 Supernet, Inc.
702 556 911 UUNET - Commercial IP service
701 487 1805 UUNET Technologies, Inc.
690 468 522 Merit Network
7843 422 624 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 376 1315 AT&T
7029 356 451 Alltel Information Services,
1657 278 279 University of Louisville
6197 264 378 BellSouth Network Solutions,
6198 243 316 BellSouth Network Solutions,
3301 234 396 TeliaNet Sweden
18566 234 238 Covad Communications
3215 221 289 France Telecom Transpac
1239 214 814 Sprint
1580 202 215 ANOSCEUR
3320 201 269 Deutsche Telekom AG
1 195 698 GENUITY
7046 190 519 UUNET Technologies, Inc.
4355 187 328 EarthLink, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:529 13:10 15:2 17:6
20:3 24:704 25:1 32:41 38:9 40:6
44:1 57:13 61:319 62:239 63:1862 64:1235
65:1415 66:973 67:95 68:79 80:238 81:42
128:67 129:134 130:22 131:55 132:11 133:2
134:121 135:9 136:344 137:95 138:147 139:71
140:175 141:43 142:70 143:50 144:142 145:17
146:239 147:142 148:243 149:79 150:40 151:67
152:272 153:36 154:11 155:114 156:69 157:122
158:69 159:134 160:19 161:76 162:213 163:87
164:265 165:130 166:217 167:259 168:292 169:60
170:233 171:3 192:5468 193:2366 194:2066 195:802
196:414 198:3676 199:3164 200:2716 202:3311 203:4736
204:3240 205:2172 206:2665 207:2506 208:2605 209:2681
210:582 211:236 212:897 213:720 214:9 215:20
216:2849 217:483 218:30 219:1
End of report
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