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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 06 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108646
Prefixes after maximum aggregation: 72044
Unique aggregates announced to Internet: 51613
Total ASes present in the Internet Routing Table: 12519
Origin-only ASes present in the Internet Routing Table: 10841
Origin ASes announcing only one prefix: 4742
Transit ASes present in the Internet Routing Table: 1678
Transit-only ASes present in the Internet Routing Table: 66
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: 14
Number of addresses announced to Internet: 1167685896
Equivalent to 69 /8s, 153 /16s and 121 /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: 72641
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17564
Total APNIC prefixes after maximum aggregation: 10623
Prefixes being announced from the APNIC address blocks: 16030
Unique aggregates announced from the APNIC address blocks: 9808
APNIC Region origin ASes present in the Internet Routing Table: 1443
APNIC Region origin ASes announcing only one prefix: 479
APNIC Region transit ASes present in the Internet Routing Table: 248
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 79223360
Equivalent to 4 /8s, 184 /16s and 218 /24s
Percentage of available APNIC address space announced: 58.6
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: 73051
Total ARIN prefixes after maximum aggregation: 47378
Prefixes being announced from the ARIN address blocks: 51207
Unique aggregates announced from the ARIN address blocks: 16175
ARIN Region origin ASes present in the Internet Routing Table: 7404
ARIN Region origin ASes announcing only one prefix: 2303
ARIN Region transit ASes present in the Internet Routing Table: 756
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 189400644
Equivalent to 11 /8s, 74 /16s and 6 /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: 18031
Total RIPE prefixes after maximum aggregation: 14043
Prefixes being announced from the RIPE address blocks: 14810
Unique aggregates announced from the RIPE address blocks: 9890
RIPE Region origin ASes present in the Internet Routing Table: 3605
RIPE Region origin ASes announcing only one prefix: 1960
RIPE Region transit ASes present in the Internet Routing Table: 657
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106537728
Equivalent to 6 /8s, 89 /16s and 163 /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 1290 1173 943 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 400 362 303 UUNET Technologies, Inc.
2907 395 1893 364 SINET Japan
2764 394 362 371 connect.com.au pty ltd
7474 303 290 206 Optus Communications Pty Ltd
4755 299 113 86 Videsh Sanchar Nigam Ltd. Aut
4134 268 1858 100 Data Communications Bureau
9394 226 112 3 CHINA RAILWAY Internet(CRNET)
4766 206 1393 145 Korea Internet Exchange for "
17557 205 15 88 Pakistan Telecom
9443 160 44 59 Primus Telecommunications
1659 152 924 34 Taiwan Academic Network (TANe
7539 152 121 147 TANet2, sponsored by NSC, TAI
9768 146 385 88 Korea Telecom
4197 139 13 5 Global OnLine Japan K.K.
9583 138 32 5 Satyam Infoway Ltd.,
4740 130 17 110 OzEmail ISP
7657 121 22 84 The Internet Group Limited
4713 117 914 103 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1113 2619 863 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 253 487 249 SWIPnet Swedish IP Network
3215 239 562 153 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
719 167 289 119 LANLINK autonomous system
8708 152 20 141 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 124 575 124 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
8297 117 40 66 Teleglobe Autonomous System i
12302 114 7 35 MobiFon S.A.
517 103 227 101 KPNQwest Germany GmbH
5603 95 13 60 SiOL Internet d.o.o.
5511 93 192 82 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 2081 12374 1490 UUNET Technologies, Inc.
7018 1746 7511 975 AT&T
1 839 8153 610 BBN Planet
3908 811 1662 471 Supernet, Inc.
1239 783 3230 610 Sprint
4323 638 431 238 Time Warner Communications, I
7046 624 849 413 UUNET Technologies, Inc.
852 564 1026 365 Telus Advanced Communications
209 525 1908 302 Qwest
690 492 72 307 Merit Network
7132 454 507 164 Southwestern Bell Internet Se
2914 452 2193 421 Verio, Inc.
3549 425 820 216 Global Crossing
705 397 121 275 UUNET Technologies, Inc.
2149 390 210 326 Performance Systems, Inc.
2386 388 361 236 AT&T Data Communications Serv
3561 371 2221 326 Cable & Wireless USA
577 351 604 219 Bell Advanced Communications
3741 348 731 239 The Internet Solution
6197 325 264 164 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7018 1746 771 AT&T
4538 454 438 China Education and Research
4323 638 400 Time Warner Communications, I
1221 1290 347 Telstra Pty Ltd
3908 811 340 Supernet, Inc.
4151 311 295 USDA
7132 454 290 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1113 250 UUNET Technologies, Inc.
6347 311 232 SAVVIS Communications Corpora
1 839 229 BBN Planet
7843 265 227 Adelphia Corp.
209 525 223 Qwest
9394 226 223 CHINA RAILWAY Internet(CRNET)
4755 299 213 Videsh Sanchar Nigam Ltd. Aut
7046 624 211 UUNET Technologies, Inc.
3549 425 209 Global Crossing
4355 235 204 EarthLink, Inc.
852 564 199 Telus Advanced Communications
1580 207 198 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
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 /14:232 /15:392 /16:7145 /17:1417 /18:2493
/19:7334 /20:6702 /21:4821 /22:7293 /23:8990 /24:60627
/25:222 /26:270 /27:126 /28:98 /29:101 /30:167
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1327 2081 UUNET Technologies, Inc.
1221 1159 1290 Telstra Pty Ltd
7018 1152 1746 AT&T
702 735 1113 UUNET Technologies, Inc.
3908 565 811 Supernet, Inc.
4323 520 638 Time Warner Communications, I
690 488 492 Merit Network
1239 458 783 Sprint
7046 452 624 UUNET Technologies, Inc.
1 433 839 BBN Planet
2764 350 394 connect.com.au pty ltd
209 346 525 Qwest
852 345 564 Telus Advanced Communications
705 339 397 UUNET Technologies, Inc.
703 323 400 UUNET Technologies, Inc.
2386 312 388 AT&T Data Communications Serv
2149 297 390 Performance Systems, Inc.
3549 294 425 Global Crossing
7066 275 304 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:738 13:10 15:1 17:5
20:5 24:686 25:1 32:180 38:12 40:6
44:1 57:14 61:215 62:161 63:1878 64:1096
65:1017 66:617 67:32 68:5 80:174 81:4
128:64 129:122 130:23 131:51 132:11 133:2
134:128 135:9 136:245 137:105 138:147 139:46
140:163 141:61 142:65 143:39 144:149 145:12
146:214 147:138 148:144 149:86 150:40 151:43
152:370 153:32 154:8 155:81 156:77 157:120
158:80 159:88 160:23 161:55 162:96 163:127
164:96 165:126 166:227 167:166 168:118 169:47
170:291 171:4 192:5445 193:2221 194:2040 195:811
196:445 198:3733 199:3253 200:2301 201:1 202:2940
203:4524 204:3303 205:2150 206:2586 207:2642 208:2591
209:2887 210:522 211:148 212:889 213:553 214:9
215:19 216:2966 217:439 218:10
End of report
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