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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 Thu 14 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107973
Prefixes after maximum aggregation: 72002
Unique aggregates announced to Internet: 52713
Total ASes present in the Internet Routing Table: 12547
Origin-only ASes present in the Internet Routing Table: 10854
Origin ASes announcing only one prefix: 4742
Transit ASes present in the Internet Routing Table: 1693
Transit-only ASes present in the Internet Routing Table: 57
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 19
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: 1147866888
Equivalent to 68 /8s, 107 /16s and 15 /24s
Percentage of available address space announced: 31.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71963
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17468
Total APNIC prefixes after maximum aggregation: 10660
Prefixes being announced from the APNIC address blocks: 15984
Unique aggregates announced from the APNIC address blocks: 9877
APNIC Region origin ASes present in the Internet Routing Table: 1450
APNIC Region origin ASes announcing only one prefix: 482
APNIC Region transit ASes present in the Internet Routing Table: 252
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 79552320
Equivalent to 4 /8s, 189 /16s and 223 /24s
Percentage of available APNIC address space announced: 58.8
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: 72510
Total ARIN prefixes after maximum aggregation: 47282
Prefixes being announced from the ARIN address blocks: 51176
Unique aggregates announced from the ARIN address blocks: 17257
ARIN Region origin ASes present in the Internet Routing Table: 7431
ARIN Region origin ASes announcing only one prefix: 2306
ARIN Region transit ASes present in the Internet Routing Table: 771
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 185975876
Equivalent to 11 /8s, 21 /16s and 196 /24s
Percentage of available ARIN address space announced: 69.3
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: 17995
Total RIPE prefixes after maximum aggregation: 14060
Prefixes being announced from the RIPE address blocks: 14810
Unique aggregates announced from the RIPE address blocks: 9930
RIPE Region origin ASes present in the Internet Routing Table: 3608
RIPE Region origin ASes announcing only one prefix: 1954
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: 19
Number of RIPE addresses announced to Internet: 106648064
Equivalent to 6 /8s, 91 /16s and 82 /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 1317 1258 964 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 406 359 309 UUNET Technologies, Inc.
2907 399 1942 366 SINET Japan
2764 388 361 364 connect.com.au pty ltd
7474 300 290 203 Optus Communications Pty Ltd
4755 294 111 86 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 243 112 3 CHINA RAILWAY Internet(CRNET)
17557 216 16 94 Pakistan Telecom
4766 206 1393 145 Korea Internet Exchange for "
7539 160 204 154 TANet2, sponsored by NSC, TAI
9443 160 44 58 Primus Telecommunications
9768 146 385 88 Korea Telecom
9583 139 32 5 Satyam Infoway Ltd.,
7657 120 22 84 The Internet Group Limited
4713 117 914 103 NTT Communications Corporatio
4780 115 186 40 Digital United Inc.
17676 115 1840 17 XTAGE CORPORATION
9800 114 194 23 CHINA UNICOM
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1108 2619 863 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 256 487 247 SWIPnet Swedish IP Network
3215 242 570 156 France Telecom / &Equant
680 232 2147 230 DFN-IP service G-WiN
5515 216 705 174 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
719 167 305 121 LANLINK autonomous system
8708 153 21 143 Romania Data Systems S.A.
2856 131 790 120 BTnet UK Regional network
3303 124 577 123 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
8297 114 40 64 Teleglobe Autonomous System i
12302 114 7 35 MobiFon S.A.
517 100 226 98 KPNQwest Germany GmbH
5511 94 193 83 France Telecom
5603 92 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 2101 8286 1506 UUNET Technologies, Inc.
7018 1234 7482 928 AT&T
1 830 8103 602 BBN Planet
3908 827 1676 479 Supernet, Inc.
1239 804 3340 621 Sprint
4323 646 433 244 Time Warner Communications, I
852 616 1125 408 Telus Advanced Communications
7046 613 849 414 UUNET Technologies, Inc.
209 535 1908 306 Qwest
7132 456 510 164 Southwestern Bell Internet Se
2914 454 2193 422 Verio, Inc.
690 437 66 283 Merit Network
3549 437 821 224 Global Crossing
705 394 112 279 UUNET Technologies, Inc.
2149 379 209 317 Performance Systems, Inc.
3561 364 2220 319 Cable & Wireless USA
577 352 588 219 Bell Advanced Communications
3741 348 731 239 The Internet Solution
6197 328 227 162 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 646 402 Time Warner Communications, I
1221 1317 353 Telstra Pty Ltd
3908 827 348 Supernet, Inc.
7018 1234 306 AT&T
4151 314 298 USDA
7132 456 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1108 245 UUNET Technologies, Inc.
9394 243 240 CHINA RAILWAY Internet(CRNET)
6347 316 238 SAVVIS Communications Corpora
209 535 229 Qwest
1 830 228 BBN Planet
7843 265 224 Adelphia Corp.
3549 437 213 Global Crossing
852 616 208 Telus Advanced Communications
4755 294 208 Videsh Sanchar Nigam Ltd. Aut
4355 232 203 EarthLink, Inc.
1580 212 201 HQ, 5th Signal Command
7046 613 199 UUNET Technologies, Inc.
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
96.0.0.0/20 3549 Global Crossing
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 /8:17 /9:6 /10:7 /11:12 /12:37
/13:91 /14:230 /15:392 /16:7139 /17:1429 /18:2506
/19:7363 /20:6731 /21:4798 /22:7278 /23:8897 /24:60112
/25:218 /26:249 /27:119 /28:87 /29:85 /30:131
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1355 2101 UUNET Technologies, Inc.
1221 1171 1317 Telstra Pty Ltd
702 732 1108 UUNET Technologies, Inc.
7018 648 1234 AT&T
3908 581 827 Supernet, Inc.
4323 527 646 Time Warner Communications, I
1239 472 804 Sprint
7046 438 613 UUNET Technologies, Inc.
690 433 437 Merit Network
1 430 830 BBN Planet
852 376 616 Telus Advanced Communications
209 356 535 Qwest
2764 344 388 connect.com.au pty ltd
705 340 394 UUNET Technologies, Inc.
703 330 406 UUNET Technologies, Inc.
3549 305 437 Global Crossing
2149 287 379 Performance Systems, Inc.
6197 275 328 BellSouth Network Solutions,
7066 275 304 Virginia Polytechnic Institut
11371 272 278 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:479 13:10 15:1 17:5
20:5 24:664 25:1 32:68 38:9 40:6
44:1 57:14 61:222 62:167 63:1868 64:1097
65:1033 66:691 67:33 68:5 80:188 81:4
128:63 129:120 130:23 131:56 132:11 133:3
134:129 135:9 136:245 137:105 138:147 139:47
140:160 141:61 142:67 143:39 144:154 145:12
146:217 147:153 148:146 149:94 150:41 151:45
152:298 153:32 154:8 155:80 156:77 157:123
158:81 159:88 160:24 161:55 162:101 163:115
164:92 165:124 166:222 167:167 168:115 169:48
170:292 171:2 192:5419 193:2231 194:2017 195:786
196:445 198:3724 199:3257 200:2308 201:1 202:3003
203:4479 204:3311 205:2145 206:2533 207:2625 208:2585
209:2827 210:517 211:146 212:888 213:562 214:9
215:18 216:2965 217:437 218:10
End of report
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