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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 Wed 13 Feb, 2002
Analysis Summary
----------------
BGP routing table entries examined: 108042
Prefixes after maximum aggregation: 71959
Unique aggregates announced to Internet: 52725
Total ASes present in the Internet Routing Table: 12543
Origin-only ASes present in the Internet Routing Table: 10853
Origin ASes announcing only one prefix: 4735
Transit ASes present in the Internet Routing Table: 1690
Transit-only ASes present in the Internet Routing Table: 61
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: 1164583688
Equivalent to 69 /8s, 106 /16s and 35 /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: 71998
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 17573
Total APNIC prefixes after maximum aggregation: 10669
Prefixes being announced from the APNIC address blocks: 16072
Unique aggregates announced from the APNIC address blocks: 9869
APNIC Region origin ASes present in the Internet Routing Table: 1448
APNIC Region origin ASes announcing only one prefix: 481
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: 79480896
Equivalent to 4 /8s, 188 /16s and 200 /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: 72528
Total ARIN prefixes after maximum aggregation: 47236
Prefixes being announced from the ARIN address blocks: 51178
Unique aggregates announced from the ARIN address blocks: 17294
ARIN Region origin ASes present in the Internet Routing Table: 7426
ARIN Region origin ASes announcing only one prefix: 2301
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: 185962820
Equivalent to 11 /8s, 21 /16s and 145 /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: 17941
Total RIPE prefixes after maximum aggregation: 14054
Prefixes being announced from the RIPE address blocks: 14752
Unique aggregates announced from the RIPE address blocks: 9891
RIPE Region origin ASes present in the Internet Routing Table: 3607
RIPE Region origin ASes announcing only one prefix: 1953
RIPE Region transit ASes present in the Internet Routing Table: 656
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 106658048
Equivalent to 6 /8s, 91 /16s and 121 /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 1315 1258 962 Telstra Pty Ltd
4538 454 1162 16 China Education and Research
703 403 359 306 UUNET Technologies, Inc.
2907 399 1942 366 SINET Japan
2764 387 361 363 connect.com.au pty ltd
7474 301 290 204 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 215 16 94 Pakistan Telecom
4766 206 1393 145 Korea Internet Exchange for "
7539 160 204 154 TANet2, sponsored by NSC, TAI
9443 158 44 58 Primus Telecommunications
9768 146 385 88 Korea Telecom
9583 140 32 5 Satyam Infoway Ltd.,
7657 121 22 84 The Internet Group Limited
4197 120 13 5 Global OnLine Japan K.K.
4713 117 914 103 NTT Communications Corporatio
4780 115 186 40 Digital United Inc.
4740 114 16 97 OzEmail ISP
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 1109 2617 862 UUNET Technologies, Inc.
3301 400 924 353 TeliaNet Sweden
1257 251 487 247 SWIPnet Swedish IP Network
3215 242 570 156 France Telecom / &Equant
680 233 2148 231 DFN-IP service G-WiN
5515 216 705 174 Sonera Finland Autonomous Sys
5400 199 82 96 Concert European Core Network
3320 193 1916 169 Deutsche Telekom AG
786 182 1874 182 The JANET IP Service
719 166 289 120 LANLINK autonomous system
8708 156 21 144 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.
517 101 227 99 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 2088 8268 1503 UUNET Technologies, Inc.
7018 1232 7490 926 AT&T
1 828 8103 603 BBN Planet
3908 825 1677 473 Supernet, Inc.
1239 803 3340 620 Sprint
4323 641 433 242 Time Warner Communications, I
7046 623 850 420 UUNET Technologies, Inc.
852 616 1125 408 Telus Advanced Communications
209 537 1909 308 Qwest
690 460 68 294 Merit Network
7132 456 510 164 Southwestern Bell Internet Se
2914 453 2193 421 Verio, Inc.
3549 438 821 221 Global Crossing
2149 389 210 325 Performance Systems, Inc.
705 377 110 263 UUNET Technologies, Inc.
3561 367 2236 322 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 326 355 189 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 641 399 Time Warner Communications, I
1221 1315 353 Telstra Pty Ltd
3908 825 352 Supernet, Inc.
7018 1232 306 AT&T
4151 312 296 USDA
7132 456 292 Southwestern Bell Internet Se
11371 278 271 Rhythms NetConnections
702 1109 247 UUNET Technologies, Inc.
9394 243 240 CHINA RAILWAY Internet(CRNET)
6347 317 238 SAVVIS Communications Corpora
209 537 229 Qwest
1 828 225 BBN Planet
7843 260 221 Adelphia Corp.
3549 438 217 Global Crossing
6198 300 214 BellSouth Network Solutions,
852 616 208 Telus Advanced Communications
4755 294 208 Videsh Sanchar Nigam Ltd. Aut
7046 623 203 UUNET Technologies, Inc.
4355 232 203 EarthLink, 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
126.0.0.0/8 7336 Compass Communications
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 /15:391 /16:7139 /17:1428 /18:2504
/19:7365 /20:6734 /21:4806 /22:7284 /23:8911 /24:60055
/25:221 /26:272 /27:131 /28:99 /29:100 /30:160
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1344 2088 UUNET Technologies, Inc.
1221 1169 1315 Telstra Pty Ltd
702 733 1109 UUNET Technologies, Inc.
7018 647 1232 AT&T
3908 579 825 Supernet, Inc.
4323 523 641 Time Warner Communications, I
1239 471 803 Sprint
690 456 460 Merit Network
7046 449 623 UUNET Technologies, Inc.
1 428 828 BBN Planet
852 376 616 Telus Advanced Communications
209 358 537 Qwest
2764 343 387 connect.com.au pty ltd
703 327 403 UUNET Technologies, Inc.
705 323 377 UUNET Technologies, Inc.
3549 306 438 Global Crossing
2149 296 389 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 12:478 13:10 15:1 17:5
20:5 24:664 25:1 32:68 38:9 40:6
44:1 57:14 61:222 62:165 63:1880 64:1100
65:1035 66:677 67:33 68:5 80:185 81:4
128:60 129:120 130:24 131:52 132:11 133:3
134:129 135:10 136:239 137:102 138:148 139:47
140:163 141:61 142:67 143:39 144:154 145:10
146:217 147:151 148:146 149:93 150:41 151:45
152:311 153:32 154:8 155:81 156:77 157:119
158:81 159:88 160:24 161:55 162:101 163:115
164:94 165:124 166:222 167:167 168:117 169:48
170:293 171:2 192:5432 193:2194 194:2018 195:787
196:440 198:3738 199:3256 200:2307 201:1 202:2996
203:4489 204:3305 205:2160 206:2525 207:2614 208:2580
209:2823 210:515 211:146 212:883 213:556 214:9
215:18 216:2969 217:423 218:10
End of report
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