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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 22 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116189
Prefixes after maximum aggregation: 74679
Unique aggregates announced to Internet: 55619
Total ASes present in the Internet Routing Table: 13937
Origin-only ASes present in the Internet Routing Table: 12076
Origin ASes announcing only one prefix: 5407
Transit ASes present in the Internet Routing Table: 1861
Transit-only ASes present in the Internet Routing Table: 59
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 1
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1178251720
Equivalent to 70 /8s, 58 /16s and 177 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.3
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48290
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18974
Total APNIC prefixes after maximum aggregation: 11438
Prefixes being announced from the APNIC address blocks: 17479
Unique aggregates announced from the APNIC address blocks: 11052
APNIC Region origin ASes present in the Internet Routing Table: 1623
APNIC Region origin ASes announcing only one prefix: 521
APNIC Region transit ASes present in the Internet Routing Table: 273
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 13
Number of APNIC addresses announced to Internet: 99241632
Equivalent to 5 /8s, 234 /16s and 78 /24s
Percentage of available APNIC address space announced: 65.3
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: 72667
Total ARIN prefixes after maximum aggregation: 46314
Prefixes being announced from the ARIN address blocks: 51009
Unique aggregates announced from the ARIN address blocks: 15420
ARIN Region origin ASes present in the Internet Routing Table: 7841
ARIN Region origin ASes announcing only one prefix: 2585
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 181799776
Equivalent to 10 /8s, 214 /16s and 11 /24s
Percentage of available ARIN address space announced: 67.7
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 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19745
Total RIPE prefixes after maximum aggregation: 14869
Prefixes being announced from the RIPE address blocks: 16434
Unique aggregates announced from the RIPE address blocks: 10969
RIPE Region origin ASes present in the Internet Routing Table: 4097
RIPE Region origin ASes announcing only one prefix: 2221
RIPE Region transit ASes present in the Internet Routing Table: 758
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 116175040
Equivalent to 6 /8s, 236 /16s and 176 /24s
Percentage of available RIPE address space announced: 76.9
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4803
Total LACNIC prefixes after maximum aggregation: 2058
Prefixes being announced from the LACNIC address blocks: 4138
Unique aggregates announced from the LACNIC address blocks: 2652
LACNIC Region origin ASes present in the Internet Routing Table: 317
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 67
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11492352
Equivalent to 0 /8s, 175 /16s and 92 /24s
Percentage of available LACNIC address space announced: 68.5
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1189 1185 867 Telstra Pty Ltd
703 395 368 312 UUNET
2907 350 1751 330 SINET Japan
2764 340 356 312 connect.com.au pty ltd
17557 304 22 118 Pakistan Telecom
7474 300 275 203 Optus Communications Pty Ltd
4134 293 2254 105 Data Communications Bureau
4755 280 138 72 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 229 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 184 57 71 Primus Telecommunications
9583 161 32 5 Satyam Infoway Ltd.,
4515 138 102 76 Star Internet Services Ltd.
9768 135 385 74 Korea Telecom
7657 129 23 86 The Internet Group Limited
4716 128 736 122 TTnet
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1784 9158 1272 UUNET Technologies, Inc.
7018 1348 7193 940 AT&T
3908 1075 1652 509 Supernet, Inc.
1239 888 3188 662 Sprint
7843 755 373 316 Adelphia Corp.
852 736 1145 456 Telus Advanced Communications
1 657 8042 433 GENUITY
7046 601 894 300 UUNET Technologies, Inc.
209 572 2048 333 Qwest
4323 518 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
705 487 137 209 UUNET Technologies, Inc.
7132 463 673 70 Southwestern Bell Internet Se
3549 409 726 296 Global Crossing
2548 400 1115 243 Business Internet, Inc.
6197 398 601 40 BellSouth Network Solutions,
6198 396 180 195 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 368 2020 357 Verio, Inc.
15290 356 214 175 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 870 2374 725 UUNET - Commercial IP service
3301 383 1164 334 TeliaNet Sweden
3215 305 788 170 France Telecom Transpac
3320 244 1966 221 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 212 783 176 Sonera Solution Autonomous Sy
1257 206 414 202 SWIPnet Swedish IP Network
5400 204 83 97 BT Ignite European Backbone
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 169 790 131 BTnet UK Regional network
8708 154 41 147 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
3246 122 373 115 Song Networks
12302 122 17 29 MobiFon S.A.
8220 113 168 104 COLT Internet - International
3269 107 692 65 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 103 85 39 Global One Services AB
5511 101 192 84 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 260 114 58 ImpSat USA, Inc.
8151 200 330 109 UniNet S.A. de C.V.
7303 178 27 49 Telecom Argentina Stet-France
11172 168 72 33 Servicios Alestra S.A de C.V
6503 154 190 108 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
13999 105 20 7 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11992 84 8 31 Integrated Systems
11340 79 2 24 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
4270 68 18 10 Red de Interconexion Universi
15034 65 5 33 TIBA SA
7984 64 27 42 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 61 16 3 ECUANET - CORPORACION ECUATOR
8065 59 6 15 Empresas Publicas de Medellin
7927 58 4 40 Global One Venezuela
6535 55 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1075 566 Supernet, Inc.
7843 755 439 Adelphia Corp.
7018 1348 408 AT&T
7132 463 393 Southwestern Bell Internet Se
6197 398 358 BellSouth Network Solutions,
4323 518 354 Time Warner Communications, I
1221 1189 322 Telstra Pty Ltd
18566 321 317 Covad Communications
1580 320 307 ANOSCEUR
7046 601 301 UUNET Technologies, Inc.
852 736 280 Telus Advanced Communications
705 487 278 UUNET Technologies, Inc.
4355 385 276 EarthLink, Inc.
4151 291 275 USDA
6347 349 273 SAVVIS Communications Corpora
209 572 239 Qwest
376 334 231 Reseau Interordinateurs Scien
1239 888 226 Sprint
1 657 224 GENUITY
4814 229 214 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
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
192.119.135.0/24 270 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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:17 /9:5 /10:8 /11:11 /12:46
/13:90 /14:237 /15:427 /16:7291 /17:1505 /18:2735
/19:7896 /20:7499 /21:5332 /22:8187 /23:9966 /24:64164
/25:178 /26:223 /27:113 /28:77 /29:53 /30:96
/31:1 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 641 1075 Supernet, Inc.
7843 567 755 Adelphia Corp.
702 538 870 UUNET - Commercial IP service
701 491 1784 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 434 1348 AT&T
18566 315 321 Covad Communications
6198 312 396 BellSouth Network Solutions,
1580 306 320 ANOSCEUR
7046 286 601 UUNET Technologies, Inc.
6197 281 398 BellSouth Network Solutions,
1239 272 888 Sprint
209 256 572 Qwest
3215 230 305 France Telecom Transpac
3301 229 383 TeliaNet Sweden
11492 221 226 Cable One
705 220 487 UUNET Technologies, Inc.
4355 218 385 EarthLink, Inc.
7066 205 307 Virginia Polytechnic Institut
3320 186 244 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:572 13:10 15:4 17:7 20:3
24:875 25:1 32:42 38:24 40:10 44:1
55:1 57:15 61:361 62:245 63:1900 64:1297
65:1639 66:1196 67:116 68:169 69:17 80:287
81:62 128:128 129:114 130:18 131:63 132:9
133:2 134:131 135:7 136:507 137:108 138:203
139:71 140:157 141:78 142:73 143:46 144:151
145:18 146:232 147:224 148:253 149:76 150:41
151:92 152:295 153:38 154:8 155:105 156:103
157:105 158:77 159:145 160:20 161:75 162:123
163:83 164:80 165:129 166:104 167:299 168:301
169:60 170:203 171:6 192:5386 193:2379 194:2012
195:819 196:435 198:3632 199:3100 200:2532 202:3496
203:4837 204:3303 205:2107 206:2386 207:2483 208:2567
209:2559 210:601 211:276 212:884 213:794 214:10
215:19 216:2964 217:511 218:49 219:3
End of report
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