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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 Fri 15 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108047
Prefixes after maximum aggregation: 71977
Unique aggregates announced to Internet: 52740
Total ASes present in the Internet Routing Table: 12553
Origin-only ASes present in the Internet Routing Table: 10858
Origin ASes announcing only one prefix: 4753
Transit ASes present in the Internet Routing Table: 1695
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: 15
Number of addresses announced to Internet: 1148777224
Equivalent to 68 /8s, 120 /16s and 243 /24s
Percentage of available address space announced: 31.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 52.8
Total number of prefixes smaller than registry allocations: 71986
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17515
Total APNIC prefixes after maximum aggregation: 10652
Prefixes being announced from the APNIC address blocks: 16016
Unique aggregates announced from the APNIC address blocks: 9867
APNIC Region origin ASes present in the Internet Routing Table: 1444
APNIC Region origin ASes announcing only one prefix: 478
APNIC Region transit ASes present in the Internet Routing Table: 251
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 79612992
Equivalent to 4 /8s, 190 /16s and 204 /24s
Percentage of available APNIC address space announced: 58.9
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: 72648
Total ARIN prefixes after maximum aggregation: 47302
Prefixes being announced from the ARIN address blocks: 51274
Unique aggregates announced from the ARIN address blocks: 17267
ARIN Region origin ASes present in the Internet Routing Table: 7433
ARIN Region origin ASes announcing only one prefix: 2313
ARIN Region transit ASes present in the Internet Routing Table: 770
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 186531140
Equivalent to 11 /8s, 30 /16s and 61 /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: 17884
Total RIPE prefixes after maximum aggregation: 14023
Prefixes being announced from the RIPE address blocks: 14695
Unique aggregates announced from the RIPE address blocks: 9946
RIPE Region origin ASes present in the Internet Routing Table: 3618
RIPE Region origin ASes announcing only one prefix: 1962
RIPE Region transit ASes present in the Internet Routing Table: 657
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 106673664
Equivalent to 6 /8s, 91 /16s and 182 /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 1316 1258 962 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 405 359 309 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 295 111 86 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 243 112 3 CHINA RAILWAY Internet(CRNET)
17557 215 16 94 Pakistan Telecom
4766 205 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
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
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1066 2616 857 UUNET Technologies, Inc.
3301 398 924 351 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 214 689 172 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 124 577 123 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
5511 94 193 83 France Telecom
1267 91 1471 41 Infostrada S.p.A.
2830 89 210 71 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2110 8430 1510 UUNET Technologies, Inc.
7018 1230 7498 929 AT&T
3908 828 1676 479 Supernet, Inc.
1 826 8102 599 BBN Planet
1239 798 3339 616 Sprint
4323 648 433 243 Time Warner Communications, I
852 615 1125 407 Telus Advanced Communications
7046 611 849 412 UUNET Technologies, Inc.
209 536 1908 306 Qwest
7132 456 510 164 Southwestern Bell Internet Se
2914 452 2193 421 Verio, Inc.
690 437 66 283 Merit Network
3549 437 821 224 Global Crossing
705 384 111 272 UUNET Technologies, Inc.
2149 376 209 315 Performance Systems, Inc.
3561 363 2220 318 Cable & Wireless USA
577 352 588 219 Bell Advanced Communications
3741 347 731 238 The Internet Solution
2386 333 355 191 AT&T Data Communications Serv
6197 328 227 162 BellSouth Network Solutions,
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 1316 354 Telstra Pty Ltd
3908 828 349 Supernet, Inc.
4151 319 303 USDA
7018 1230 301 AT&T
7132 456 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
7843 301 252 Adelphia Corp.
9394 243 240 CHINA RAILWAY Internet(CRNET)
6347 316 238 SAVVIS Communications Corpora
209 536 230 Qwest
1 826 227 BBN Planet
3549 437 213 Global Crossing
702 1066 209 UUNET Technologies, Inc.
4755 295 209 Videsh Sanchar Nigam Ltd. Aut
852 615 208 Telus Advanced Communications
4355 244 205 EarthLink, Inc.
7046 611 199 UUNET Technologies, Inc.
7029 214 199 Alltel Information Services,
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
128.204.0.0/16 1785 AppliedTheory Corporation
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 /14:231 /15:394 /16:7145 /17:1430 /18:2508
/19:7371 /20:6738 /21:4803 /22:7278 /23:8904 /24:60134
/25:219 /26:249 /27:119 /28:87 /29:85 /30:129
/31:0 /32:53
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1360 2110 UUNET Technologies, Inc.
1221 1170 1316 Telstra Pty Ltd
702 692 1066 UUNET Technologies, Inc.
7018 644 1230 AT&T
3908 582 828 Supernet, Inc.
4323 529 648 Time Warner Communications, I
1239 467 798 Sprint
7046 437 611 UUNET Technologies, Inc.
690 433 437 Merit Network
1 426 826 BBN Planet
852 375 615 Telus Advanced Communications
209 357 536 Qwest
2764 344 388 connect.com.au pty ltd
705 330 384 UUNET Technologies, Inc.
703 329 405 UUNET Technologies, Inc.
3549 305 437 Global Crossing
2149 284 376 Performance Systems, Inc.
6197 275 328 BellSouth Network Solutions,
7066 275 304 Virginia Polytechnic Institut
4151 272 319 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:1 9:1 12:481 13:10 15:1 17:5
20:5 24:701 25:1 32:68 38:9 40:6
44:1 57:14 61:222 62:171 63:1888 64:1105
65:1028 66:697 67:33 68:5 80:187 81:4
128:63 129:120 130:21 131:57 132:11 133:3
134:129 135:10 136:245 137:106 138:148 139:47
140:162 141:61 142:67 143:37 144:154 145:12
146:218 147:154 148:146 149:91 150:41 151:45
152:301 153:32 154:7 155:83 156:77 157:121
158:81 159:88 160:24 161:55 162:102 163:114
164:94 165:124 166:222 167:168 168:115 169:49
170:293 171:2 192:5428 193:2112 194:2009 195:789
196:445 198:3738 199:3254 200:2327 201:1 202:2988
203:4480 204:3310 205:2163 206:2535 207:2622 208:2577
209:2835 210:530 211:158 212:883 213:564 214:9
215:18 216:2967 217:438 218:10
End of report
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