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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 Sat 09 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107957
Prefixes after maximum aggregation: 71990
Unique aggregates announced to Internet: 51672
Total ASes present in the Internet Routing Table: 12522
Origin-only ASes present in the Internet Routing Table: 10828
Origin ASes announcing only one prefix: 4729
Transit ASes present in the Internet Routing Table: 1694
Transit-only ASes present in the Internet Routing Table: 60
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 20
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: 15
Number of addresses announced to Internet: 1168113416
Equivalent to 69 /8s, 159 /16s and 255 /24s
Percentage of available address space announced: 31.5
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71939
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17567
Total APNIC prefixes after maximum aggregation: 10651
Prefixes being announced from the APNIC address blocks: 16067
Unique aggregates announced from the APNIC address blocks: 9858
APNIC Region origin ASes present in the Internet Routing Table: 1453
APNIC Region origin ASes announcing only one prefix: 483
APNIC Region transit ASes present in the Internet Routing Table: 253
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 79448896
Equivalent to 4 /8s, 188 /16s and 75 /24s
Percentage of available APNIC address space announced: 58.7
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: 72411
Total ARIN prefixes after maximum aggregation: 47291
Prefixes being announced from the ARIN address blocks: 51050
Unique aggregates announced from the ARIN address blocks: 16207
ARIN Region origin ASes present in the Internet Routing Table: 7403
ARIN Region origin ASes announcing only one prefix: 2290
ARIN Region transit ASes present in the Internet Routing Table: 762
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 189545796
Equivalent to 11 /8s, 76 /16s and 61 /24s
Percentage of available ARIN address space announced: 70.6
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
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: 17979
Total RIPE prefixes after maximum aggregation: 14048
Prefixes being announced from the RIPE address blocks: 14790
Unique aggregates announced from the RIPE address blocks: 9934
RIPE Region origin ASes present in the Internet Routing Table: 3605
RIPE Region origin ASes announcing only one prefix: 1956
RIPE Region transit ASes present in the Internet Routing Table: 659
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106629632
Equivalent to 6 /8s, 91 /16s and 10 /24s
Percentage of available RIPE address space announced: 70.6
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 1320 1258 965 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 405 363 307 UUNET Technologies, Inc.
2907 399 1942 366 SINET Japan
2764 384 361 362 connect.com.au pty ltd
7474 301 290 204 Optus Communications Pty Ltd
4755 293 111 85 Videsh Sanchar Nigam Ltd. Aut
4134 269 1858 100 Data Communications Bureau
9394 236 112 3 CHINA RAILWAY Internet(CRNET)
17557 208 16 91 Pakistan Telecom
4766 206 1393 145 Korea Internet Exchange for "
7539 162 220 155 TANet2, sponsored by NSC, TAI
9443 161 44 59 Primus Telecommunications
9768 146 385 88 Korea Telecom
9583 140 32 5 Satyam Infoway Ltd.,
4197 130 13 5 Global OnLine Japan K.K.
4740 124 17 104 OzEmail ISP
7657 121 22 84 The Internet Group Limited
4713 117 914 103 NTT Communications Corporatio
4780 115 186 40 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1106 2603 860 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 252 487 248 SWIPnet Swedish IP Network
3215 242 570 156 France Telecom / &Equant
680 233 2148 231 DFN-IP service G-WiN
5515 218 705 175 Sonera Finland Autonomous Sys
5400 199 82 96 Concert European Core Network
3320 196 1964 172 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 166 289 120 LANLINK autonomous system
8708 158 21 144 Romania Data Systems S.A.
2856 130 790 119 BTnet UK Regional network
3303 122 576 122 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
8297 117 40 66 Teleglobe Autonomous System i
12302 114 7 35 MobiFon S.A.
517 100 226 98 KPNQwest Germany GmbH
5603 93 12 59 SiOL Internet d.o.o.
5511 92 192 81 France Telecom
1267 91 1471 41 Infostrada S.p.A.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2085 8287 1509 UUNET Technologies, Inc.
7018 1230 7492 925 AT&T
1 830 8152 609 BBN Planet
3908 807 1646 468 Supernet, Inc.
1239 797 3200 617 Sprint
4323 635 432 239 Time Warner Communications, I
7046 620 849 418 UUNET Technologies, Inc.
852 616 1141 409 Telus Advanced Communications
209 531 1909 303 Qwest
690 492 72 307 Merit Network
7132 455 508 163 Southwestern Bell Internet Se
2914 453 2195 422 Verio, Inc.
3549 437 837 218 Global Crossing
705 390 116 274 UUNET Technologies, Inc.
2149 389 210 325 Performance Systems, Inc.
3561 371 2239 327 Cable & Wireless USA
577 352 604 219 Bell Advanced Communications
3741 348 731 239 The Internet Solution
6197 327 227 161 BellSouth Network Solutions,
2386 326 355 189 AT&T Data Communications Serv
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 454 438 China Education and Research
4323 635 396 Time Warner Communications, I
1221 1320 355 Telstra Pty Ltd
3908 807 339 Supernet, Inc.
7018 1230 305 AT&T
4151 312 296 USDA
7132 455 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1106 246 UUNET Technologies, Inc.
6347 312 233 SAVVIS Communications Corpora
9394 236 233 CHINA RAILWAY Internet(CRNET)
209 531 228 Qwest
7843 260 222 Adelphia Corp.
1 830 221 BBN Planet
3549 437 219 Global Crossing
4755 293 208 Videsh Sanchar Nigam Ltd. Aut
852 616 207 Telus Advanced Communications
4355 233 204 EarthLink, Inc.
7046 620 202 UUNET Technologies, Inc.
1580 212 201 HQ, 5th Signal Command
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
96.0.0.0/20 3549 Global Crossing
126.0.0.0/8 7336 Compass Communications
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 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
201.115.100.0/24 7018 AT&T
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 /12:37
/13:91 /14:231 /15:392 /16:7137 /17:1424 /18:2498
/19:7346 /20:6706 /21:4788 /22:7260 /23:8912 /24:60064
/25:219 /26:277 /27:127 /28:101 /29:104 /30:161
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1337 2085 UUNET Technologies, Inc.
1221 1174 1320 Telstra Pty Ltd
702 730 1106 UUNET Technologies, Inc.
7018 645 1230 AT&T
3908 563 807 Supernet, Inc.
4323 517 635 Time Warner Communications, I
690 488 492 Merit Network
1239 473 797 Sprint
7046 446 620 UUNET Technologies, Inc.
1 432 830 BBN Planet
852 375 616 Telus Advanced Communications
209 353 531 Qwest
2764 341 384 connect.com.au pty ltd
705 336 390 UUNET Technologies, Inc.
703 327 405 UUNET Technologies, Inc.
3549 305 437 Global Crossing
2149 296 389 Performance Systems, Inc.
7066 275 304 Virginia Polytechnic Institut
6197 274 327 BellSouth Network Solutions,
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:469 13:10 15:1 17:5
20:8 24:664 25:1 32:68 38:9 40:6
44:1 57:14 61:218 62:164 63:1876 64:1099
65:1033 66:668 67:32 68:5 80:178 81:4
128:65 129:119 130:23 131:52 132:11 133:3
134:128 135:10 136:244 137:105 138:148 139:47
140:163 141:61 142:67 143:39 144:155 145:12
146:216 147:148 148:144 149:86 150:40 151:43
152:326 153:32 154:8 155:81 156:77 157:121
158:80 159:88 160:24 161:55 162:102 163:117
164:93 165:126 166:222 167:167 168:114 169:48
170:291 171:3 192:5440 193:2233 194:2032 195:783
196:446 198:3737 199:3265 200:2315 201:1 202:2968
203:4507 204:3281 205:2145 206:2517 207:2629 208:2576
209:2827 210:526 211:148 212:881 213:554 214:9
215:18 216:2939 217:438 218:10
End of report
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