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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 17 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 107885
Prefixes after maximum aggregation: 71860
Unique aggregates announced to Internet: 52665
Total ASes present in the Internet Routing Table: 12527
Origin-only ASes present in the Internet Routing Table: 10837
Origin ASes announcing only one prefix: 4744
Transit ASes present in the Internet Routing Table: 1690
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: 1164331272
Equivalent to 69 /8s, 102 /16s and 73 /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: 71850
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17498
Total APNIC prefixes after maximum aggregation: 10629
Prefixes being announced from the APNIC address blocks: 15999
Unique aggregates announced from the APNIC address blocks: 9837
APNIC Region origin ASes present in the Internet Routing Table: 1445
APNIC Region origin ASes announcing only one prefix: 481
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: 79547200
Equivalent to 4 /8s, 189 /16s and 203 /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: 72588
Total ARIN prefixes after maximum aggregation: 47301
Prefixes being announced from the ARIN address blocks: 51221
Unique aggregates announced from the ARIN address blocks: 17276
ARIN Region origin ASes present in the Internet Routing Table: 7435
ARIN Region origin ASes announcing only one prefix: 2313
ARIN Region transit ASes present in the Internet Routing Table: 768
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 186605124
Equivalent to 11 /8s, 31 /16s and 94 /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: 17799
Total RIPE prefixes after maximum aggregation: 13930
Prefixes being announced from the RIPE address blocks: 14657
Unique aggregates announced from the RIPE address blocks: 9900
RIPE Region origin ASes present in the Internet Routing Table: 3589
RIPE Region origin ASes announcing only one prefix: 1950
RIPE Region transit ASes present in the Internet Routing Table: 655
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 106496000
Equivalent to 6 /8s, 89 /16s and 0 /24s
Percentage of available RIPE address space announced: 70.5
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 1313 1258 959 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
2907 399 1942 366 SINET Japan
703 394 358 307 UUNET Technologies, Inc.
2764 389 361 364 connect.com.au pty ltd
7474 300 289 203 Optus Communications Pty Ltd
4755 293 111 85 Videsh Sanchar Nigam Ltd. Aut
4134 270 1874 98 Data Communications Bureau
9394 243 112 3 CHINA RAILWAY Internet(CRNET)
17557 215 16 96 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 141 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 1067 2600 855 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 216 705 173 Sonera Finland Autonomous Sys
5400 200 83 95 Concert European Core Network
3320 194 1948 170 Deutsche Telekom AG
786 181 1874 181 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
8297 115 40 65 Teleglobe Autonomous System i
12302 114 7 35 MobiFon S.A.
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 2084 8428 1496 UUNET Technologies, Inc.
7018 1228 7498 927 AT&T
1 830 8103 602 BBN Planet
3908 817 1644 477 Supernet, Inc.
1239 803 3324 619 Sprint
4323 648 433 243 Time Warner Communications, I
7046 628 850 421 UUNET Technologies, Inc.
852 617 1125 409 Telus Advanced Communications
209 527 1909 305 Qwest
7132 456 510 164 Southwestern Bell Internet Se
2914 451 2192 419 Verio, Inc.
3549 446 822 232 Global Crossing
690 437 66 283 Merit Network
705 380 114 268 UUNET Technologies, Inc.
2149 378 209 316 Performance Systems, Inc.
7843 364 290 50 Adelphia Corp.
3561 359 2219 315 Cable & Wireless USA
577 351 588 217 Bell Advanced Communications
3741 343 730 234 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 1313 354 Telstra Pty Ltd
3908 817 340 Supernet, Inc.
7843 364 314 Adelphia Corp.
7018 1228 301 AT&T
7132 456 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
9394 243 240 CHINA RAILWAY Internet(CRNET)
6347 316 238 SAVVIS Communications Corpora
1 830 228 BBN Planet
209 527 222 Qwest
3549 446 214 Global Crossing
702 1067 212 UUNET Technologies, Inc.
852 617 208 Telus Advanced Communications
4755 293 208 Videsh Sanchar Nigam Ltd. Aut
7046 628 207 UUNET Technologies, Inc.
4355 244 205 EarthLink, Inc.
1580 211 200 HQ, 5th Signal Command
4151 216 199 USDA
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
189.186.184.0/24 4471 Michigan Internet Cooperative
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 /15:393 /16:7128 /17:1428 /18:2508
/19:7379 /20:6737 /21:4799 /22:7254 /23:8897 /24:60029
/25:219 /26:250 /27:118 /28:86 /29:89 /30:130
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1333 2084 UUNET Technologies, Inc.
1221 1167 1313 Telstra Pty Ltd
702 694 1067 UUNET Technologies, Inc.
7018 642 1228 AT&T
3908 573 817 Supernet, Inc.
4323 529 648 Time Warner Communications, I
1239 474 803 Sprint
7046 453 628 UUNET Technologies, Inc.
690 433 437 Merit Network
1 427 830 BBN Planet
852 376 617 Telus Advanced Communications
209 348 527 Qwest
2764 345 389 connect.com.au pty ltd
705 327 380 UUNET Technologies, Inc.
703 319 394 UUNET Technologies, Inc.
3549 312 446 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 12:482 13:10 15:1 17:5
20:5 24:766 25:1 32:68 38:9 40:6
44:1 57:14 61:227 62:171 63:1874 64:1114
65:1033 66:686 67:33 68:5 80:192 81:4
128:62 129:123 130:21 131:57 132:11 133:3
134:129 135:10 136:244 137:99 138:148 139:47
140:162 141:61 142:81 143:24 144:154 145:12
146:217 147:154 148:148 149:92 150:41 151:45
152:302 153:32 154:7 155:83 156:77 157:119
158:81 159:88 160:24 161:55 162:102 163:113
164:90 165:124 166:224 167:162 168:113 169:49
170:292 171:2 189:1 192:5426 193:2122 194:1999
195:785 196:445 198:3735 199:3142 200:2317 201:1
202:2970 203:4473 204:3305 205:2166 206:2535 207:2618
208:2580 209:2836 210:530 211:158 212:890 213:554
214:9 215:18 216:2971 217:440 218:10
End of report
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