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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 02 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108449
Prefixes after maximum aggregation: 71974
Unique aggregates announced to Internet: 52641
Total ASes present in the Internet Routing Table: 12480
Origin-only ASes present in the Internet Routing Table: 10806
Origin ASes announcing only one prefix: 4711
Transit ASes present in the Internet Routing Table: 1674
Transit-only ASes present in the Internet Routing Table: 65
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: 29
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: 1163376904
Equivalent to 69 /8s, 87 /16s and 185 /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: 72529
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17504
Total APNIC prefixes after maximum aggregation: 10627
Prefixes being announced from the APNIC address blocks: 15962
Unique aggregates announced from the APNIC address blocks: 9828
APNIC Region origin ASes present in the Internet Routing Table: 1441
APNIC Region origin ASes announcing only one prefix: 477
APNIC Region transit ASes present in the Internet Routing Table: 254
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 79084096
Equivalent to 4 /8s, 182 /16s and 186 /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: 72915
Total ARIN prefixes after maximum aggregation: 47300
Prefixes being announced from the ARIN address blocks: 51093
Unique aggregates announced from the ARIN address blocks: 17327
ARIN Region origin ASes present in the Internet Routing Table: 7372
ARIN Region origin ASes announcing only one prefix: 2282
ARIN Region transit ASes present in the Internet Routing Table: 751
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 184585028
Equivalent to 11 /8s, 0 /16s and 139 /24s
Percentage of available ARIN address space announced: 68.8
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: 18029
Total RIPE prefixes after maximum aggregation: 14047
Prefixes being announced from the RIPE address blocks: 14814
Unique aggregates announced from the RIPE address blocks: 9839
RIPE Region origin ASes present in the Internet Routing Table: 3601
RIPE Region origin ASes announcing only one prefix: 1952
RIPE Region transit ASes present in the Internet Routing Table: 652
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106568448
Equivalent to 6 /8s, 90 /16s and 27 /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 1331 1259 972 Telstra Pty Ltd
4538 451 1162 16 China Education and Research
2907 395 1893 364 SINET Japan
2764 394 362 370 connect.com.au pty ltd
703 392 367 295 UUNET Technologies, Inc.
9394 323 112 3 CHINA RAILWAY Internet(CRNET)
7474 300 286 204 Optus Communications Pty Ltd
4755 292 112 82 Videsh Sanchar Nigam Ltd. Aut
4134 268 1858 100 Data Communications Bureau
4766 206 1393 145 Korea Internet Exchange for "
17557 199 15 87 Pakistan Telecom
9443 160 44 59 Primus Telecommunications
7539 155 138 150 TANet2, sponsored by NSC, TAI
9768 145 385 88 Korea Telecom
4740 142 34 116 OzEmail ISP
1659 140 924 34 Taiwan Academic Network (TANe
9583 131 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 1112 2621 863 UUNET Technologies, Inc.
3301 405 924 358 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 207 704 171 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 153 21 141 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
5511 93 192 82 France Telecom
1267 92 1471 42 Infostrada S.p.A.
5603 92 12 58 SiOL Internet d.o.o.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2082 8318 1502 UUNET Technologies, Inc.
7018 1731 7522 978 AT&T
1 836 8153 610 BBN Planet
3908 811 1678 473 Supernet, Inc.
1239 781 3213 607 Sprint
7046 626 833 413 UUNET Technologies, Inc.
4323 612 430 222 Time Warner Communications, I
852 565 978 366 Telus Advanced Communications
209 522 1876 298 Qwest
690 493 72 308 Merit Network
2914 454 2197 423 Verio, Inc.
7132 452 504 162 Southwestern Bell Internet Se
3549 424 819 215 Global Crossing
705 401 111 278 UUNET Technologies, Inc.
2149 389 210 326 Performance Systems, Inc.
2386 388 361 236 AT&T Data Communications Serv
3561 377 2222 330 Cable & Wireless USA
3741 349 731 240 The Internet Solution
577 347 604 217 Bell Advanced Communications
6197 324 263 166 BellSouth Network Solutions,
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7018 1731 753 AT&T
4538 451 435 China Education and Research
4323 612 390 Time Warner Communications, I
1221 1331 359 Telstra Pty Ltd
3908 811 338 Supernet, Inc.
9394 323 320 CHINA RAILWAY Internet(CRNET)
4151 317 301 USDA
7132 452 290 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1112 249 UUNET Technologies, Inc.
6347 309 230 SAVVIS Communications Corpora
1 836 226 BBN Planet
209 522 224 Qwest
7843 263 223 Adelphia Corp.
7046 626 213 UUNET Technologies, Inc.
4755 292 210 Videsh Sanchar Nigam Ltd. Aut
3549 424 209 Global Crossing
4355 235 204 EarthLink, Inc.
852 565 199 Telus Advanced Communications
1580 208 199 HQ, 5th Signal Command
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
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
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
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
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
21464 UNALLOCATED 193.129.168.0/24 702 UUNET Technologies,
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
21193 UNALLOCATED 213.176.160.0/19 8903 BT Tel AS 1
22763 UNALLOCATED 216.23.254.0/23 1239 Sprint
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 /15:388 /16:7146 /17:1420 /18:2487
/19:7321 /20:6670 /21:4807 /22:7295 /23:8978 /24:60530
/25:218 /26:280 /27:127 /28:101 /29:98 /30:133
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1330 2082 UUNET Technologies, Inc.
1221 1182 1331 Telstra Pty Ltd
7018 1141 1731 AT&T
702 734 1112 UUNET Technologies, Inc.
3908 562 811 Supernet, Inc.
4323 497 612 Time Warner Communications, I
690 489 493 Merit Network
1239 459 781 Sprint
7046 455 626 UUNET Technologies, Inc.
1 430 836 BBN Planet
2764 350 394 connect.com.au pty ltd
852 349 565 Telus Advanced Communications
209 344 522 Qwest
705 341 401 UUNET Technologies, Inc.
703 312 392 UUNET Technologies, Inc.
2386 312 388 AT&T Data Communications Serv
9394 311 323 CHINA RAILWAY Internet(CRNET)
2149 294 389 Performance Systems, Inc.
3549 293 424 Global Crossing
7066 275 304 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 9:1 12:735 13:10 15:1 17:5
20:4 24:687 25:1 32:180 38:12 40:6
44:1 57:14 61:214 62:162 63:1877 64:1094
65:1009 66:617 67:32 68:5 80:168 81:4
128:61 129:124 130:23 131:52 132:11 133:2
134:128 135:10 136:244 137:105 138:145 139:46
140:162 141:61 142:65 143:39 144:151 145:12
146:214 147:137 148:144 149:87 150:39 151:43
152:371 153:34 154:8 155:82 156:77 157:124
158:72 159:88 160:24 161:55 162:96 163:127
164:94 165:125 166:227 167:163 168:118 169:47
170:290 171:4 192:5423 193:2189 194:2028 195:812
196:442 198:3735 199:3257 200:2318 201:1 202:2893
203:4519 204:3303 205:2144 206:2584 207:2609 208:2585
209:2877 210:533 211:171 212:899 213:593 214:9
215:18 216:2972 217:434 218:10
End of report
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