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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 30 Jan, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108500
Prefixes after maximum aggregation: 72063
Unique aggregates announced to Internet: 51958
Total ASes present in the Internet Routing Table: 12472
Origin-only ASes present in the Internet Routing Table: 10794
Origin ASes announcing only one prefix: 4708
Transit ASes present in the Internet Routing Table: 1678
Transit-only ASes present in the Internet Routing Table: 58
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 10
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: 1170259848
Equivalent to 69 /8s, 192 /16s and 191 /24s
Percentage of available address space announced: 31.6
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 72513
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17290
Total APNIC prefixes after maximum aggregation: 10640
Prefixes being announced from the APNIC address blocks: 15749
Unique aggregates announced from the APNIC address blocks: 9854
APNIC Region origin ASes present in the Internet Routing Table: 1440
APNIC Region origin ASes announcing only one prefix: 479
APNIC Region transit ASes present in the Internet Routing Table: 255
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 78887488
Equivalent to 4 /8s, 179 /16s and 186 /24s
Percentage of available APNIC address space announced: 58.3
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: 73175
Total ARIN prefixes after maximum aggregation: 47417
Prefixes being announced from the ARIN address blocks: 51335
Unique aggregates announced from the ARIN address blocks: 17119
ARIN Region origin ASes present in the Internet Routing Table: 7379
ARIN Region origin ASes announcing only one prefix: 2283
ARIN Region transit ASes present in the Internet Routing Table: 755
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 185096388
Equivalent to 11 /8s, 8 /16s and 88 /24s
Percentage of available ARIN address space announced: 69.0
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: 18034
Total RIPE prefixes after maximum aggregation: 14006
Prefixes being announced from the RIPE address blocks: 14820
Unique aggregates announced from the RIPE address blocks: 9301
RIPE Region origin ASes present in the Internet Routing Table: 3594
RIPE Region origin ASes announcing only one prefix: 1946
RIPE Region transit ASes present in the Internet Routing Table: 654
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 113041664
Equivalent to 6 /8s, 188 /16s and 225 /24s
Percentage of available RIPE address space announced: 74.9
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 1334 1260 974 Telstra Pty Ltd
4538 450 1162 16 China Education and Research
703 403 342 307 UUNET Technologies, Inc.
2764 394 378 370 connect.com.au pty ltd
2907 394 1893 364 SINET Japan
7474 299 285 205 Optus Communications Pty Ltd
4755 297 112 85 Videsh Sanchar Nigam Ltd. Aut
4134 268 1858 100 Data Communications Bureau
4766 208 1394 147 Korea Internet Exchange for "
17557 194 15 86 Pakistan Telecom
9443 160 44 59 Primus Telecommunications
7539 147 137 143 TANet2, sponsored by NSC, TAI
9768 145 385 88 Korea Telecom
4740 143 34 117 OzEmail ISP
1659 141 908 33 Taiwan Academic Network (TANe
9583 138 32 5 Satyam Infoway Ltd.,
7657 124 22 84 The Internet Group Limited
4713 117 894 103 NTT Communications Corporatio
4780 116 186 40 Digital United Inc.
17676 113 1808 20 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1118 2622 865 UUNET Technologies, Inc.
3301 397 924 350 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 193 1961 169 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 165 289 119 LANLINK autonomous system
8708 151 20 141 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 114 7 35 MobiFon S.A.
517 103 227 101 KPNQwest Germany GmbH
5603 95 13 60 SiOL Internet d.o.o.
1290 94 411 69 PSINet UK Ltd.
5511 93 192 82 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2087 8302 1504 UUNET Technologies, Inc.
7018 1748 7570 984 AT&T
1 836 8152 610 BBN Planet
3908 791 1656 466 Supernet, Inc.
1239 776 3189 604 Sprint
7046 633 836 418 UUNET Technologies, Inc.
4323 612 414 221 Time Warner Communications, I
852 566 979 366 Telus Advanced Communications
209 514 1875 294 Qwest
690 496 72 310 Merit Network
7132 452 504 162 Southwestern Bell Internet Se
2914 451 2196 420 Verio, Inc.
3549 428 835 222 Global Crossing
705 405 113 276 UUNET Technologies, Inc.
2149 389 214 326 Performance Systems, Inc.
2386 389 354 246 AT&T Data Communications Serv
3561 382 2236 332 Cable & Wireless USA
3967 367 374 198 Exodus Communication
3741 349 731 240 The Internet Solution
577 347 604 217 Bell Advanced Communications
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7018 1748 764 AT&T
4538 450 434 China Education and Research
4323 612 391 Time Warner Communications, I
1221 1334 360 Telstra Pty Ltd
3908 791 325 Supernet, Inc.
4151 336 320 USDA
7132 452 290 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1118 253 UUNET Technologies, Inc.
6347 314 233 SAVVIS Communications Corpora
1 836 226 BBN Planet
7843 261 222 Adelphia Corp.
209 514 220 Qwest
7046 633 215 UUNET Technologies, Inc.
4755 297 212 Videsh Sanchar Nigam Ltd. Aut
4355 238 207 EarthLink, Inc.
3549 428 206 Global Crossing
852 566 200 Telus Advanced Communications
1580 209 200 HQ, 5th Signal Command
6517 221 193 Yipes Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65400 PRIVATE 66.7.130.0/24 6517 Yipes Communications
23098 UNALLOCATED 144.9.72.0/24 12179 InterNAP Network Ser
23098 UNALLOCATED 144.9.73.0/24 12179 InterNAP Network Ser
24581 UNALLOCATED 193.110.116.0/22 702 UUNET Technologies,
24610 UNALLOCATED 193.110.124.0/22 15497 Colocall Autonomous
22336 UNALLOCATED 205.242.9.0/24 1239 Sprint
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
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
134.137.0.0/16 400 Headquarters Standard Systems
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 /15:391 /16:7154 /17:1414 /18:2488
/19:7322 /20:6681 /21:4822 /22:7300 /23:8972 /24:60690
/25:223 /26:211 /27:115 /28:83 /29:57 /30:136
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1336 2087 UUNET Technologies, Inc.
1221 1184 1334 Telstra Pty Ltd
7018 1159 1748 AT&T
702 739 1118 UUNET Technologies, Inc.
3908 544 791 Supernet, Inc.
4323 498 612 Time Warner Communications, I
690 492 496 Merit Network
7046 462 633 UUNET Technologies, Inc.
1239 457 776 Sprint
1 432 836 BBN Planet
852 349 566 Telus Advanced Communications
2764 349 394 connect.com.au pty ltd
705 345 405 UUNET Technologies, Inc.
209 337 514 Qwest
703 329 403 UUNET Technologies, Inc.
2386 313 389 AT&T Data Communications Serv
3549 296 428 Global Crossing
2149 293 389 Performance Systems, Inc.
4151 290 336 USDA
7066 275 304 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:2 9:1 12:737 13:10 15:1 17:5
20:1 24:706 25:1 32:181 38:12 40:5
44:2 57:14 61:212 62:163 63:1876 64:1095
65:997 66:616 67:36 68:16 80:159 81:4
128:62 129:119 130:23 131:53 132:13 133:2
134:129 135:10 136:242 137:104 138:146 139:46
140:163 141:59 142:65 143:38 144:157 145:12
146:213 147:137 148:140 149:87 150:39 151:43
152:378 153:34 154:8 155:82 156:77 157:125
158:73 159:86 160:26 161:54 162:96 163:125
164:88 165:125 166:225 167:161 168:117 169:47
170:288 171:4 192:5437 193:2222 194:2033 195:806
196:447 198:3754 199:3294 200:2319 201:1 202:2894
203:4537 204:3302 205:2143 206:2615 207:2636 208:2580
209:2898 210:536 211:151 212:891 213:587 214:9
215:18 216:2964 217:431 218:12
End of report
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