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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 31 Mar, 2002
Analysis Summary
----------------
BGP routing table entries examined: 110508
Prefixes after maximum aggregation: 72286
Unique aggregates announced to Internet: 53584
Total ASes present in the Internet Routing Table: 12815
Origin-only ASes present in the Internet Routing Table: 11092
Origin ASes announcing only one prefix: 4854
Transit ASes present in the Internet Routing Table: 1723
Transit-only ASes present in the Internet Routing Table: 54
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 17
Illegal AS announcements present in the Routing Table: 11
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: 1162534120
Equivalent to 69 /8s, 74 /16s and 220 /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: 74256
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18344
Total APNIC prefixes after maximum aggregation: 10803
Prefixes being announced from the APNIC address blocks: 16821
Unique aggregates announced from the APNIC address blocks: 10156
APNIC Region origin ASes present in the Internet Routing Table: 1473
APNIC Region origin ASes announcing only one prefix: 477
APNIC Region transit ASes present in the Internet Routing Table: 263
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 82276928
Equivalent to 4 /8s, 231 /16s and 114 /24s
Percentage of available APNIC address space announced: 60.8
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: 73673
Total ARIN prefixes after maximum aggregation: 47308
Prefixes being announced from the ARIN address blocks: 52182
Unique aggregates announced from the ARIN address blocks: 17502
ARIN Region origin ASes present in the Internet Routing Table: 7583
ARIN Region origin ASes announcing only one prefix: 2385
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: 183984324
Equivalent to 10 /8s, 247 /16s and 96 /24s
Percentage of available ARIN address space announced: 68.5
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: 18485
Total RIPE prefixes after maximum aggregation: 14175
Prefixes being announced from the RIPE address blocks: 15225
Unique aggregates announced from the RIPE address blocks: 10124
RIPE Region origin ASes present in the Internet Routing Table: 3704
RIPE Region origin ASes announcing only one prefix: 1992
RIPE Region transit ASes present in the Internet Routing Table: 675
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 108334368
Equivalent to 6 /8s, 117 /16s and 13 /24s
Percentage of available RIPE address space announced: 71.7
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 1284 1211 944 Telstra Pty Ltd
4538 464 1194 17 China Education and Research
2907 437 1895 371 SINET Japan
703 416 336 324 UUNET Technologies, Inc.
2764 385 361 359 connect.com.au pty ltd
9394 340 113 4 CHINA RAILWAY Internet(CRNET)
7474 312 290 211 Optus Communications Pty Ltd
4755 286 110 82 Videsh Sanchar Nigam Ltd. Aut
4134 276 1978 98 Data Communications Bureau
9443 276 44 64 Primus Telecommunications
17557 259 18 99 Pakistan Telecom
4766 220 1520 158 Korea Internet Exchange for "
7539 169 256 162 TANet2, sponsored by NSC, TAI
4804 164 84 67 Microplex PTY LTD
9583 151 32 5 Satyam Infoway Ltd.,
9768 142 385 82 Korea Telecom
4780 129 186 39 Digital United Inc.
7657 122 22 85 The Internet Group Limited
4713 120 891 104 NTT Communications Corporatio
17676 119 1904 12 XTAGE CORPORATION
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1028 2596 843 UUNET Technologies, Inc.
3301 389 923 344 TeliaNet Sweden
3215 266 581 174 France Telecom / &Equant
5515 264 696 169 Sonera Finland Autonomous Sys
680 232 2149 231 DFN-IP service G-WiN
3320 225 1964 173 Deutsche Telekom AG
1257 221 463 217 SWIPnet Swedish IP Network
5400 197 84 94 Concert European Core Network
786 182 1874 182 The JANET IP Service
719 163 289 118 LANLINK autonomous system
8708 158 23 147 Romania Data Systems S.A.
2856 130 788 119 BTnet UK Regional network
3303 124 565 123 Swisscom Ltd
12302 124 8 45 MobiFon S.A.
3269 117 694 71 TELECOM ITALIA
8297 117 53 67 Teleglobe Autonomous System i
5511 103 194 91 France Telecom
517 102 226 98 KPNQwest Germany GmbH
9051 101 6 25 INCONET Autonomous System
2874 96 84 36 Global One Services AB
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 2061 8430 1444 UUNET Technologies, Inc.
7018 1227 7513 918 AT&T
3908 848 1675 479 Supernet, Inc.
1239 817 3387 637 Sprint
1 806 8138 603 BBN Planet
4323 630 436 253 Time Warner Communications, I
852 627 1111 414 Telus Advanced Communications
7046 602 837 374 UUNET Technologies, Inc.
209 558 1993 321 Qwest
7132 524 554 163 Southwestern Bell Internet Se
3549 514 860 266 Global Crossing
690 457 68 300 Merit Network
7843 428 314 48 Adelphia Corp.
2914 414 2161 410 Verio, Inc.
705 376 115 268 UUNET Technologies, Inc.
2149 367 208 305 Performance Systems, Inc.
7066 353 203 251 Virginia Polytechnic Institut
3741 342 731 235 The Internet Solution
6197 332 217 173 BellSouth Network Solutions,
3561 322 2152 289 Cable & Wireless USA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 464 447 China Education and Research
7843 428 380 Adelphia Corp.
4323 630 377 Time Warner Communications, I
3908 848 369 Supernet, Inc.
7132 524 361 Southwestern Bell Internet Se
1221 1284 340 Telstra Pty Ltd
9394 340 336 CHINA RAILWAY Internet(CRNET)
7018 1227 309 AT&T
4151 306 290 USDA
11371 293 287 Rhythms NetConnections
6198 311 280 BellSouth Network Solutions,
4565 312 278 Epoch Networks
3549 514 248 Global Crossing
6347 317 238 SAVVIS Communications Corpora
209 558 237 Qwest
7029 247 232 Alltel Information Services,
7046 602 228 UUNET Technologies, Inc.
852 627 213 Telus Advanced Communications
9443 276 212 Primus Telecommunications
4355 245 209 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
23279 UNALLOCATED 63.238.4.0/24 209 Qwest
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
112 UNALLOCATED 192.175.48.0/24 19836 Network Solutions
65535 PRIVATE 198.93.230.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.93.231.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.168.0/24 3550 Ateneo de Manila Uni
65535 PRIVATE 198.94.169.0/24 3550 Ateneo de Manila Uni
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
23279 UNALLOCATED 216.207.52.0/24 209 Qwest
23279 UNALLOCATED 216.207.53.0/24 209 Qwest
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 /9:5 /10:8 /11:14 /12:35
/13:88 /14:231 /15:400 /16:7176 /17:1395 /18:2570
/19:7437 /20:6875 /21:4953 /22:7582 /23:9147 /24:61584
/25:222 /26:278 /27:119 /28:102 /29:105 /30:126
/31:0 /32:38
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1339 2061 UUNET Technologies, Inc.
1221 1143 1284 Telstra Pty Ltd
702 654 1028 UUNET Technologies, Inc.
7018 639 1227 AT&T
3908 580 848 Supernet, Inc.
4323 499 630 Time Warner Communications, I
1239 473 817 Sprint
690 452 457 Merit Network
7046 415 602 UUNET Technologies, Inc.
1 399 806 BBN Planet
852 380 627 Telus Advanced Communications
3549 373 514 Global Crossing
209 367 558 Qwest
2764 340 385 connect.com.au pty ltd
703 336 416 UUNET Technologies, Inc.
9394 326 340 CHINA RAILWAY Internet(CRNET)
7066 324 353 Virginia Polytechnic Institut
705 323 376 UUNET Technologies, Inc.
4565 287 312 Epoch Networks
11371 287 293 Rhythms NetConnections
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:7 9:1 12:486 13:10 15:2
17:6 20:2 24:754 25:1 32:68 38:8
40:6 44:1 57:14 61:313 62:160 63:1900
64:1195 65:1112 66:801 67:57 68:4 80:222
81:7 128:64 129:129 130:23 131:56 132:11
133:3 134:110 135:10 136:314 137:97 138:137
139:49 140:187 141:90 142:74 143:38 144:141
145:11 146:220 147:135 148:138 149:91 150:38
151:45 152:317 153:33 154:1 155:108 156:76
157:119 158:72 159:125 160:27 161:55 162:141
163:104 164:151 165:122 166:220 167:193 168:100
169:52 170:281 171:2 192:5424 193:2260 194:2088
195:793 196:430 198:3697 199:3192 200:2401 201:1
202:3144 203:4579 204:3254 205:2167 206:2558 207:2672
208:2571 209:2814 210:595 211:209 212:880 213:599
214:9 215:18 216:3102 217:464 218:15
End of report
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