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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 Mon 11 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108003
Prefixes after maximum aggregation: 72000
Unique aggregates announced to Internet: 52676
Total ASes present in the Internet Routing Table: 12531
Origin-only ASes present in the Internet Routing Table: 10834
Origin ASes announcing only one prefix: 4729
Transit ASes present in the Internet Routing Table: 1697
Transit-only ASes present in the Internet Routing Table: 63
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: 5
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: 1164282120
Equivalent to 69 /8s, 101 /16s and 137 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71997
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17546
Total APNIC prefixes after maximum aggregation: 10638
Prefixes being announced from the APNIC address blocks: 16077
Unique aggregates announced from the APNIC address blocks: 9876
APNIC Region origin ASes present in the Internet Routing Table: 1450
APNIC Region origin ASes announcing only one prefix: 481
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: 79482176
Equivalent to 4 /8s, 188 /16s and 205 /24s
Percentage of available APNIC address space announced: 58.8
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: 72470
Total ARIN prefixes after maximum aggregation: 47295
Prefixes being announced from the ARIN address blocks: 51145
Unique aggregates announced from the ARIN address blocks: 17218
ARIN Region origin ASes present in the Internet Routing Table: 7413
ARIN Region origin ASes announcing only one prefix: 2293
ARIN Region transit ASes present in the Internet Routing Table: 769
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 185795140
Equivalent to 11 /8s, 19 /16s and 2 /24s
Percentage of available ARIN address space announced: 69.2
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: 17984
Total RIPE prefixes after maximum aggregation: 14067
Prefixes being announced from the RIPE address blocks: 14783
Unique aggregates announced from the RIPE address blocks: 9932
RIPE Region origin ASes present in the Internet Routing Table: 3604
RIPE Region origin ASes announcing only one prefix: 1955
RIPE Region transit ASes present in the Internet Routing Table: 656
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106645760
Equivalent to 6 /8s, 91 /16s and 73 /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 1322 1258 967 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 403 359 306 UUNET Technologies, Inc.
2907 398 1942 365 SINET Japan
2764 394 362 371 connect.com.au pty ltd
7474 301 290 204 Optus Communications Pty Ltd
4755 293 111 85 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 245 112 3 CHINA RAILWAY Internet(CRNET)
17557 211 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 125 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
9800 114 194 23 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1105 2617 860 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 252 487 248 SWIPnet Swedish IP Network
3215 241 570 155 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 154 20 141 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 122 576 122 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
8297 116 40 65 Teleglobe Autonomous System i
12302 114 7 35 MobiFon S.A.
517 100 226 98 KPNQwest Germany GmbH
5511 93 192 82 France Telecom
5603 93 12 59 SiOL Internet d.o.o.
1267 91 1471 41 Infostrada S.p.A.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2084 8288 1508 UUNET Technologies, Inc.
7018 1228 7490 923 AT&T
1 832 8105 607 BBN Planet
3908 811 1662 470 Supernet, Inc.
1239 801 3340 621 Sprint
4323 636 432 240 Time Warner Communications, I
7046 623 849 418 UUNET Technologies, Inc.
852 612 1125 406 Telus Advanced Communications
209 532 1909 303 Qwest
690 487 71 302 Merit Network
7132 455 508 163 Southwestern Bell Internet Se
2914 454 2195 422 Verio, Inc.
3549 436 837 220 Global Crossing
705 391 116 275 UUNET Technologies, Inc.
2149 388 210 324 Performance Systems, Inc.
3561 368 2235 323 Cable & Wireless USA
577 351 588 218 Bell Advanced Communications
3741 348 731 239 The Internet Solution
6197 327 227 161 BellSouth Network Solutions,
2386 324 354 187 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 636 396 Time Warner Communications, I
1221 1322 355 Telstra Pty Ltd
3908 811 341 Supernet, Inc.
7018 1228 305 AT&T
4151 313 297 USDA
7132 455 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1105 245 UUNET Technologies, Inc.
9394 245 242 CHINA RAILWAY Internet(CRNET)
6347 312 233 SAVVIS Communications Corpora
209 532 229 Qwest
1 832 225 BBN Planet
7843 261 222 Adelphia Corp.
3549 436 216 Global Crossing
4755 293 208 Videsh Sanchar Nigam Ltd. Aut
852 612 206 Telus Advanced Communications
7046 623 205 UUNET Technologies, Inc.
4355 232 203 EarthLink, Inc.
1580 212 201 HQ, 5th Signal Command
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65012 PRIVATE 164.117.0.0/16 765 Communications Syste
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
65500 PRIVATE 216.26.100.0/24 12130 Education Network of
65500 PRIVATE 216.26.116.0/24 12130 Education Network of
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:91 /14:231 /15:390 /16:7140 /17:1425 /18:2499
/19:7350 /20:6713 /21:4798 /22:7268 /23:8903 /24:60081
/25:219 /26:277 /27:131 /28:100 /29:102 /30:159
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1340 2084 UUNET Technologies, Inc.
1221 1176 1322 Telstra Pty Ltd
702 729 1105 UUNET Technologies, Inc.
7018 644 1228 AT&T
3908 566 811 Supernet, Inc.
4323 518 636 Time Warner Communications, I
690 483 487 Merit Network
1239 469 801 Sprint
7046 449 623 UUNET Technologies, Inc.
1 431 832 BBN Planet
852 372 612 Telus Advanced Communications
209 354 532 Qwest
2764 350 394 connect.com.au pty ltd
705 337 391 UUNET Technologies, Inc.
703 327 403 UUNET Technologies, Inc.
3549 303 436 Global Crossing
2149 295 388 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 12:470 13:10 15:1 17:5
20:5 24:666 25:1 32:68 38:9 40:6
44:1 57:14 61:220 62:165 63:1879 64:1109
65:1037 66:677 67:32 68:5 80:176 81:4
128:62 129:119 130:24 131:52 132:11 133:3
134:128 135:10 136:244 137:105 138:148 139:47
140:163 141:61 142:67 143:39 144:154 145:12
146:217 147:147 148:144 149:86 150:40 151:43
152:322 153:32 154:8 155:81 156:76 157:116
158:80 159:88 160:24 161:55 162:102 163:109
164:94 165:126 166:222 167:167 168:116 169:48
170:291 171:2 192:5429 193:2228 194:2030 195:788
196:442 198:3729 199:3255 200:2314 201:1 202:2972
203:4513 204:3288 205:2160 206:2528 207:2630 208:2579
209:2838 210:522 211:146 212:880 213:548 214:9
215:18 216:2941 217:436 218:10
End of report
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