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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 16 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107916
Prefixes after maximum aggregation: 71871
Unique aggregates announced to Internet: 52576
Total ASes present in the Internet Routing Table: 12548
Origin-only ASes present in the Internet Routing Table: 10862
Origin ASes announcing only one prefix: 4757
Transit ASes present in the Internet Routing Table: 1686
Transit-only ASes present in the Internet Routing Table: 55
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: 1165480456
Equivalent to 69 /8s, 119 /16s and 210 /24s
Percentage of available address space announced: 31.4
Percentage of allocated address space announced: 59.5
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71852
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17369
Total APNIC prefixes after maximum aggregation: 10587
Prefixes being announced from the APNIC address blocks: 15874
Unique aggregates announced from the APNIC address blocks: 9713
APNIC Region origin ASes present in the Internet Routing Table: 1446
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: 79548224
Equivalent to 4 /8s, 189 /16s and 207 /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: 72674
Total ARIN prefixes after maximum aggregation: 47290
Prefixes being announced from the ARIN address blocks: 51306
Unique aggregates announced from the ARIN address blocks: 17289
ARIN Region origin ASes present in the Internet Routing Table: 7435
ARIN Region origin ASes announcing only one prefix: 2318
ARIN Region transit ASes present in the Internet Routing Table: 764
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 186587204
Equivalent to 11 /8s, 31 /16s and 24 /24s
Percentage of available ARIN address space announced: 69.5
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: 17873
Total RIPE prefixes after maximum aggregation: 13994
Prefixes being announced from the RIPE address blocks: 14691
Unique aggregates announced from the RIPE address blocks: 9934
RIPE Region origin ASes present in the Internet Routing Table: 3611
RIPE Region origin ASes announcing only one prefix: 1959
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: 106665984
Equivalent to 6 /8s, 91 /16s and 152 /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 1314 1258 959 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
2907 399 1942 366 SINET Japan
703 395 358 308 UUNET Technologies, Inc.
2764 389 361 364 connect.com.au pty ltd
7474 300 289 203 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)
4766 205 1393 145 Korea Internet Exchange for "
9443 160 44 58 Primus Telecommunications
7539 159 188 154 TANet2, sponsored by NSC, TAI
9768 146 385 88 Korea Telecom
4804 144 84 68 Microplex PTY LTD
9583 140 32 5 Satyam Infoway Ltd.,
7657 122 22 85 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 1069 2616 855 UUNET Technologies, Inc.
3301 398 924 351 TeliaNet Sweden
1257 256 487 247 SWIPnet Swedish IP Network
3215 241 570 156 France Telecom / &Equant
680 232 2147 230 DFN-IP service G-WiN
5515 216 705 173 Sonera Finland Autonomous Sys
5400 200 83 95 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 155 21 144 Romania Data Systems S.A.
2856 130 790 119 BTnet UK Regional network
3303 123 577 123 Swisscom Ltd
3269 117 693 71 TELECOM ITALIA
12302 115 7 36 MobiFon S.A.
8297 114 40 64 Teleglobe Autonomous System i
517 100 226 98 KPNQwest Germany GmbH
2874 95 101 35 Global One Services AB
1267 91 1471 41 Infostrada S.p.A.
5511 91 192 80 France Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2089 8428 1499 UUNET Technologies, Inc.
7018 1232 7498 930 AT&T
1 829 8103 601 BBN Planet
3908 828 1676 479 Supernet, Inc.
1239 804 3340 620 Sprint
4323 648 433 243 Time Warner Communications, I
7046 629 850 419 UUNET Technologies, Inc.
852 615 1125 407 Telus Advanced Communications
209 532 1908 304 Qwest
7132 456 510 164 Southwestern Bell Internet Se
2914 452 2193 420 Verio, Inc.
3549 438 821 224 Global Crossing
690 437 66 283 Merit Network
705 381 114 269 UUNET Technologies, Inc.
2149 378 209 316 Performance Systems, Inc.
3561 363 2220 318 Cable & Wireless USA
7843 363 290 50 Adelphia Corp.
577 352 588 218 Bell Advanced Communications
3741 344 730 235 The Internet Solution
2386 333 355 191 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 648 405 Time Warner Communications, I
1221 1314 355 Telstra Pty Ltd
3908 828 349 Supernet, Inc.
7843 363 313 Adelphia Corp.
7018 1232 302 AT&T
7132 456 292 Southwestern Bell Internet Se
4151 305 289 USDA
11371 278 271 Rhythms NetConnections
9394 243 240 CHINA RAILWAY Internet(CRNET)
6347 316 238 SAVVIS Communications Corpora
1 829 228 BBN Planet
209 532 228 Qwest
702 1069 214 UUNET Technologies, Inc.
3549 438 214 Global Crossing
7046 629 210 UUNET Technologies, Inc.
852 615 208 Telus Advanced Communications
4755 294 208 Videsh Sanchar Nigam Ltd. Aut
4355 244 205 EarthLink, Inc.
1580 211 200 HQ, 5th Signal Command
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 /8:18 /9:6 /10:7 /11:12 /12:37
/13:91 /14:231 /15:394 /16:7145 /17:1432 /18:2508
/19:7380 /20:6743 /21:4806 /22:7267 /23:8902 /24:60003
/25:220 /26:251 /27:120 /28:86 /29:85 /30:130
/31:0 /32:42
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1338 2089 UUNET Technologies, Inc.
1221 1168 1314 Telstra Pty Ltd
702 694 1069 UUNET Technologies, Inc.
7018 646 1232 AT&T
3908 582 828 Supernet, Inc.
4323 529 648 Time Warner Communications, I
1239 474 804 Sprint
7046 454 629 UUNET Technologies, Inc.
690 433 437 Merit Network
1 426 829 BBN Planet
852 374 615 Telus Advanced Communications
209 353 532 Qwest
2764 345 389 connect.com.au pty ltd
705 329 381 UUNET Technologies, Inc.
703 319 395 UUNET Technologies, Inc.
3549 306 438 Global Crossing
2149 286 378 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 12:481 13:10 15:1 17:5
20:5 24:765 25:1 32:68 38:9 40:6
44:1 57:14 61:227 62:170 63:1888 64:1109
65:1030 66:692 67:33 68:5 80:189 81:4
128:63 129:123 130:21 131:57 132:11 133:3
134:129 135:10 136:244 137:106 138:148 139:47
140:162 141:61 142:67 143:37 144:154 145:12
146:217 147:154 148:146 149:91 150:40 151:45
152:301 153:32 154:7 155:83 156:77 157:122
158:81 159:88 160:24 161:54 162:102 163:114
164:94 165:124 166:222 167:168 168:114 169:49
170:292 171:2 192:5423 193:2115 194:2007 195:785
196:445 198:3735 199:3236 200:2309 201:1 202:2876
203:4441 204:3311 205:2163 206:2537 207:2620 208:2575
209:2830 210:528 211:158 212:889 213:558 214:9
215:18 216:2971 217:440 218:10
End of report
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