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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 10 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108038
Prefixes after maximum aggregation: 72072
Unique aggregates announced to Internet: 52682
Total ASes present in the Internet Routing Table: 12527
Origin-only ASes present in the Internet Routing Table: 10834
Origin ASes announcing only one prefix: 4727
Transit ASes present in the Internet Routing Table: 1693
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: 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: 1164278024
Equivalent to 69 /8s, 101 /16s and 121 /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: 72023
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17568
Total APNIC prefixes after maximum aggregation: 10670
Prefixes being announced from the APNIC address blocks: 16072
Unique aggregates announced from the APNIC address blocks: 9888
APNIC Region origin ASes present in the Internet Routing Table: 1449
APNIC Region origin ASes announcing only one prefix: 480
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: 79387968
Equivalent to 4 /8s, 187 /16s and 93 /24s
Percentage of available APNIC address space announced: 58.7
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: 72475
Total ARIN prefixes after maximum aggregation: 47327
Prefixes being announced from the ARIN address blocks: 51129
Unique aggregates announced from the ARIN address blocks: 17210
ARIN Region origin ASes present in the Internet Routing Table: 7407
ARIN Region origin ASes announcing only one prefix: 2292
ARIN Region transit ASes present in the Internet Routing Table: 763
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 185796932
Equivalent to 11 /8s, 19 /16s and 9 /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: 17992
Total RIPE prefixes after maximum aggregation: 14075
Prefixes being announced from the RIPE address blocks: 14800
Unique aggregates announced from the RIPE address blocks: 9934
RIPE Region origin ASes present in the Internet Routing Table: 3608
RIPE Region origin ASes announcing only one prefix: 1955
RIPE Region transit ASes present in the Internet Routing Table: 659
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 106668032
Equivalent to 6 /8s, 91 /16s and 160 /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 1321 1258 966 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 404 363 306 UUNET Technologies, Inc.
2907 399 1942 366 SINET Japan
2764 392 361 369 connect.com.au pty ltd
7474 301 290 204 Optus Communications Pty Ltd
4755 292 111 86 Videsh Sanchar Nigam Ltd. Aut
4134 269 1858 100 Data Communications Bureau
9394 244 112 3 CHINA RAILWAY Internet(CRNET)
17557 210 16 93 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
4780 115 186 40 Digital United Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1100 2616 855 UUNET Technologies, Inc.
3301 399 924 353 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 157 21 143 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 113 7 34 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 2089 8288 1513 UUNET Technologies, Inc.
7018 1235 7510 929 AT&T
1 833 8153 608 BBN Planet
3908 811 1662 470 Supernet, Inc.
1239 794 3216 614 Sprint
4323 636 432 240 Time Warner Communications, I
7046 622 849 417 UUNET Technologies, Inc.
852 615 1125 408 Telus Advanced Communications
209 531 1909 303 Qwest
690 491 72 306 Merit Network
7132 455 508 163 Southwestern Bell Internet Se
2914 454 2195 422 Verio, Inc.
3549 439 837 220 Global Crossing
705 390 116 274 UUNET Technologies, Inc.
2149 390 210 326 Performance Systems, Inc.
3561 368 2237 323 Cable & Wireless USA
577 352 604 219 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 1321 355 Telstra Pty Ltd
3908 811 341 Supernet, Inc.
7018 1235 306 AT&T
4151 313 297 USDA
7132 455 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1100 245 UUNET Technologies, Inc.
9394 244 241 CHINA RAILWAY Internet(CRNET)
6347 312 233 SAVVIS Communications Corpora
209 531 228 Qwest
1 833 225 BBN Planet
7843 260 222 Adelphia Corp.
3549 439 219 Global Crossing
852 615 207 Telus Advanced Communications
4755 292 206 Videsh Sanchar Nigam Ltd. Aut
7046 622 205 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 /16:7139 /17:1423 /18:2500
/19:7356 /20:6715 /21:4803 /22:7274 /23:8921 /24:60080
/25:220 /26:277 /27:130 /28:100 /29:104 /30:160
/31:0 /32:44
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1342 2089 UUNET Technologies, Inc.
1221 1175 1321 Telstra Pty Ltd
702 728 1100 UUNET Technologies, Inc.
7018 646 1235 AT&T
3908 566 811 Supernet, Inc.
4323 518 636 Time Warner Communications, I
690 487 491 Merit Network
1239 469 794 Sprint
7046 448 622 UUNET Technologies, Inc.
1 430 833 BBN Planet
852 375 615 Telus Advanced Communications
209 353 531 Qwest
2764 348 392 connect.com.au pty ltd
705 336 390 UUNET Technologies, Inc.
703 326 404 UUNET Technologies, Inc.
3549 306 439 Global Crossing
2149 297 390 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 12:471 13:10 15:1 17:5
20:8 24:666 25:1 32:68 38:9 40:6
44:1 57:14 61:220 62:164 63:1878 64:1099
65:1035 66:672 67:32 68:5 80:178 81:4
128:62 129:119 130:23 131:52 132:11 133:3
134:128 135:10 136:244 137:105 138:148 139:47
140:163 141:61 142:67 143:39 144:154 145:12
146:216 147:147 148:144 149:86 150:40 151:43
152:323 153:32 154:8 155:81 156:77 157:116
158:79 159:88 160:24 161:55 162:102 163:117
164:94 165:126 166:222 167:167 168:116 169:48
170:291 171:2 192:5429 193:2232 194:2031 195:787
196:442 198:3730 199:3255 200:2313 201:1 202:2978
203:4511 204:3294 205:2154 206:2526 207:2625 208:2579
209:2838 210:519 211:146 212:880 213:548 214:9
215:18 216:2944 217:440 218:10
End of report
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