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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 Sun 03 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108601
Prefixes after maximum aggregation: 72027
Unique aggregates announced to Internet: 52608
Total ASes present in the Internet Routing Table: 12480
Origin-only ASes present in the Internet Routing Table: 10809
Origin ASes announcing only one prefix: 4715
Transit ASes present in the Internet Routing Table: 1671
Transit-only ASes present in the Internet Routing Table: 62
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: 34
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: 1164312328
Equivalent to 69 /8s, 101 /16s and 255 /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: 72645
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17526
Total APNIC prefixes after maximum aggregation: 10629
Prefixes being announced from the APNIC address blocks: 15978
Unique aggregates announced from the APNIC address blocks: 9829
APNIC Region origin ASes present in the Internet Routing Table: 1442
APNIC Region origin ASes announcing only one prefix: 478
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: 79102272
Equivalent to 4 /8s, 183 /16s and 1 /24s
Percentage of available APNIC address space announced: 58.5
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 220/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73006
Total ARIN prefixes after maximum aggregation: 47354
Prefixes being announced from the ARIN address blocks: 51192
Unique aggregates announced from the ARIN address blocks: 17152
ARIN Region origin ASes present in the Internet Routing Table: 7378
ARIN Region origin ASes announcing only one prefix: 2287
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: 20
Number of ARIN addresses announced to Internet: 185419076
Equivalent to 11 /8s, 13 /16s and 69 /24s
Percentage of available ARIN address space announced: 69.1
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: 18068
Total RIPE prefixes after maximum aggregation: 14044
Prefixes being announced from the RIPE address blocks: 14847
Unique aggregates announced from the RIPE address blocks: 9883
RIPE Region origin ASes present in the Internet Routing Table: 3597
RIPE Region origin ASes announcing only one prefix: 1950
RIPE Region transit ASes present in the Internet Routing Table: 651
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106557184
Equivalent to 6 /8s, 89 /16s and 239 /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 1333 1260 974 Telstra Pty Ltd
4538 438 1162 16 China Education and Research
2907 395 1893 364 SINET Japan
2764 393 362 369 connect.com.au pty ltd
703 392 367 295 UUNET Technologies, Inc.
7474 300 286 204 Optus Communications Pty Ltd
4755 299 113 87 Videsh Sanchar Nigam Ltd. Aut
4134 268 1858 100 Data Communications Bureau
9394 223 112 3 CHINA RAILWAY Internet(CRNET)
4766 206 1393 145 Korea Internet Exchange for "
17557 203 15 88 Pakistan Telecom
9443 160 44 59 Primus Telecommunications
9768 145 385 88 Korea Telecom
7539 144 136 140 TANet2, sponsored by NSC, TAI
1659 142 924 34 Taiwan Academic Network (TANe
4740 142 34 116 OzEmail ISP
9583 137 32 5 Satyam Infoway Ltd.,
7657 119 21 82 The Internet Group Limited
4713 116 898 102 NTT Communications Corporatio
4780 116 186 40 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1108 2621 862 UUNET Technologies, Inc.
3301 404 924 357 TeliaNet Sweden
1257 253 487 249 SWIPnet Swedish IP Network
3215 240 562 153 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 195 1964 171 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 165 289 119 LANLINK autonomous system
8708 154 21 142 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 124 575 124 Swisscom Ltd
3269 118 695 72 TELECOM ITALIA
8297 117 40 66 Teleglobe Autonomous System i
12302 116 7 37 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 2085 8318 1504 UUNET Technologies, Inc.
7018 1736 7511 981 AT&T
1 840 8153 611 BBN Planet
3908 809 1662 470 Supernet, Inc.
1239 781 3230 608 Sprint
7046 626 849 413 UUNET Technologies, Inc.
4323 611 430 222 Time Warner Communications, I
852 564 978 366 Telus Advanced Communications
209 521 1876 298 Qwest
690 493 72 308 Merit Network
2914 455 2213 424 Verio, Inc.
7132 452 504 162 Southwestern Bell Internet Se
3549 425 819 215 Global Crossing
705 397 109 275 UUNET Technologies, Inc.
2149 389 226 326 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 349 731 240 The Internet Solution
6197 324 263 166 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7018 1736 755 AT&T
4538 438 422 China Education and Research
4323 611 389 Time Warner Communications, I
1221 1333 359 Telstra Pty Ltd
3908 809 339 Supernet, Inc.
4151 311 295 USDA
7132 452 290 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1108 246 UUNET Technologies, Inc.
6347 311 232 SAVVIS Communications Corpora
1 840 229 BBN Planet
7843 264 227 Adelphia Corp.
209 521 223 Qwest
9394 223 220 CHINA RAILWAY Internet(CRNET)
7046 626 213 UUNET Technologies, Inc.
4755 299 212 Videsh Sanchar Nigam Ltd. Aut
3549 425 210 Global Crossing
4355 235 204 EarthLink, Inc.
1580 208 199 HQ, 5th Signal Command
852 564 198 Telus Advanced Communications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23103 UNALLOCATED 12.147.166.0/24 7018 AT&T
22790 UNALLOCATED 64.29.112.0/20 6467 E.Spire Communicatio
23166 UNALLOCATED 64.71.184.0/24 6939 Hurricane Electric
23166 UNALLOCATED 64.84.40.0/24 10738 MasterLink Inc.
23109 UNALLOCATED 64.241.52.0/24 10910 InterNAP Network Ser
23125 UNALLOCATED 65.192.95.0/24 1239 Sprint
23089 UNALLOCATED 65.215.97.0/24 1 BBN Planet
65400 PRIVATE 66.7.130.0/24 6517 Yipes Communications
23166 UNALLOCATED 66.220.4.0/24 6939 Hurricane Electric
21468 UNALLOCATED 80.243.224.0/23 6739 Cableuropa - ONO
21450 UNALLOCATED 80.246.128.0/20 8584 Barak AS
24578 UNALLOCATED 81.16.0.0/20 21414 Autonomous System of
23098 UNALLOCATED 144.9.72.0/24 12179 InterNAP Network Ser
23098 UNALLOCATED 144.9.73.0/24 12179 InterNAP Network Ser
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
24579 UNALLOCATED 193.110.89.0/24 5377 Taide, Commercial IP
24581 UNALLOCATED 193.110.116.0/22 702 UUNET Technologies,
24610 UNALLOCATED 193.110.124.0/22 15772 WNET Autonomous Syst
24593 UNALLOCATED 193.110.162.0/23 6877 UTEL Network Autonom
24617 UNALLOCATED 195.29.168.0/24 13046 ISKON
22784 UNALLOCATED 198.31.101.0/24 19116 airBand Communicatio
22732 UNALLOCATED 198.187.135.0/24 3908 Supernet, Inc.
22732 UNALLOCATED 198.187.215.0/24 3908 Supernet, Inc.
22732 UNALLOCATED 198.187.216.0/24 3908 Supernet, Inc.
22629 UNALLOCATED 199.96.16.0/21 8057 Vision Net, Inc.
22629 UNALLOCATED 199.96.24.0/22 8057 Vision Net, Inc.
22336 UNALLOCATED 205.242.9.0/24 701 UUNET Technologies,
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
22793 UNALLOCATED 207.53.145.0/24 19120 ARGIA
22109 UNALLOCATED 208.0.49.0/24 6453 Teleglobe Inc.
23160 UNALLOCATED 208.28.136.0/24 1239 Sprint
21193 UNALLOCATED 213.176.160.0/19 8903 BT Tel AS 1
23166 UNALLOCATED 216.218.195.0/24 6939 Hurricane Electric
17939 UNALLOCATED 218.216.32.0/19 2497 IIJ
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:91 /14:233 /15:392 /16:7155 /17:1420 /18:2488
/19:7329 /20:6673 /21:4820 /22:7299 /23:8983 /24:60634
/25:217 /26:270 /27:128 /28:95 /29:99 /30:155
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1334 2085 UUNET Technologies, Inc.
1221 1184 1333 Telstra Pty Ltd
7018 1142 1736 AT&T
702 731 1108 UUNET Technologies, Inc.
3908 563 809 Supernet, Inc.
4323 496 611 Time Warner Communications, I
690 489 493 Merit Network
1239 458 781 Sprint
7046 454 626 UUNET Technologies, Inc.
1 434 840 BBN Planet
2764 349 393 connect.com.au pty ltd
852 348 564 Telus Advanced Communications
209 343 521 Qwest
705 338 397 UUNET Technologies, Inc.
703 312 392 UUNET Technologies, Inc.
2386 312 388 AT&T Data Communications Serv
3549 294 425 Global Crossing
2149 293 389 Performance Systems, Inc.
7066 275 304 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:735 13:10 15:1 17:5
20:5 24:688 25:1 32:180 38:12 40:6
44:1 57:14 61:215 62:158 63:1874 64:1097
65:1011 66:622 67:32 68:5 80:168 81:4
128:64 129:125 130:23 131:50 132:11 133:2
134:128 135:10 136:245 137:105 138:146 139:46
140:162 141:61 142:65 143:39 144:151 145:12
146:214 147:138 148:144 149:85 150:38 151:43
152:371 153:32 154:8 155:81 156:77 157:119
158:72 159:88 160:24 161:55 162:96 163:124
164:94 165:127 166:226 167:163 168:118 169:47
170:292 171:4 192:5431 193:2220 194:2041 195:812
196:439 198:3740 199:3250 200:2322 201:1 202:2913
203:4536 204:3304 205:2155 206:2586 207:2616 208:2591
209:2889 210:531 211:151 212:895 213:593 214:9
215:18 216:2973 217:437 218:10
End of report
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