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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 09 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114830
Prefixes after maximum aggregation: 74037
Unique aggregates announced to Internet: 54820
Total ASes present in the Internet Routing Table: 13508
Origin-only ASes present in the Internet Routing Table: 11680
Origin ASes announcing only one prefix: 5189
Transit ASes present in the Internet Routing Table: 1828
Transit-only ASes present in the Internet Routing Table: 56
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 23
Illegal AS announcements present in the Routing Table: 3
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 33
Number of addresses announced to Internet: 1187982901
Equivalent to 70 /8s, 207 /16s and 46 /24s
Percentage of available address space announced: 32.1
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46617
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18896
Total APNIC prefixes after maximum aggregation: 11234
Prefixes being announced from the APNIC address blocks: 17404
Unique aggregates announced from the APNIC address blocks: 10610
APNIC Region origin ASes present in the Internet Routing Table: 1583
APNIC Region origin ASes announcing only one prefix: 515
APNIC Region transit ASes present in the Internet Routing Table: 277
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 90638048
Equivalent to 5 /8s, 103 /16s and 6 /24s
Percentage of available APNIC address space announced: 59.6
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76520
Total ARIN prefixes after maximum aggregation: 48155
Prefixes being announced from the ARIN address blocks: 54205
Unique aggregates announced from the ARIN address blocks: 18156
ARIN Region origin ASes present in the Internet Routing Table: 7940
ARIN Region origin ASes announcing only one prefix: 2553
ARIN Region transit ASes present in the Internet Routing Table: 795
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190322512
Equivalent to 11 /8s, 88 /16s and 23 /24s
Percentage of available ARIN address space announced: 66.7
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
25600 - 26623
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19412
Total RIPE prefixes after maximum aggregation: 14648
Prefixes being announced from the RIPE address blocks: 16075
Unique aggregates announced from the RIPE address blocks: 10529
RIPE Region origin ASes present in the Internet Routing Table: 3931
RIPE Region origin ASes announcing only one prefix: 2121
RIPE Region transit ASes present in the Internet Routing Table: 743
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 113210368
Equivalent to 6 /8s, 191 /16s and 116 /24s
Percentage of available RIPE address space announced: 75.0
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 1264 1194 899 Telstra Pty Ltd
4538 539 1279 27 China Education and Research
703 412 377 324 UUNET
2907 365 1848 343 SINET Japan
2764 361 358 332 connect.com.au pty ltd
7474 320 296 213 Optus Communications Pty Ltd
17557 298 20 95 Pakistan Telecom
4134 293 2166 103 Data Communications Bureau
4755 280 111 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 180 32 5 Satyam Infoway Ltd.,
17676 177 2754 34 XTAGE CORPORATION
9443 170 45 68 Primus Telecommunications
7539 148 189 143 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 125 191 18 CHINA UNICOM
4621 115 11 63 UNINET-TH
4713 115 1009 106 NTT Communications Corporatio
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 903 2418 756 UUNET - Commercial IP service
3301 394 923 344 TeliaNet Sweden
5515 320 783 180 Sonera Solution Autonomous Sy
3215 289 641 178 France Telecom Transpac
3320 269 1965 208 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 210 85 98 BT Ignite European Backbone
1257 208 446 203 SWIPnet Swedish IP Network
719 183 306 128 LANLINK autonomous system
786 176 1857 176 The JANET IP Service
3303 142 548 141 Swisscom Ltd
8708 140 24 137 Romania Data Systems S.A.
2856 128 787 118 BTnet UK Regional network
12302 123 18 30 MobiFon S.A.
3269 113 690 68 TELECOM ITALIA
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3233 107 10 9 RNC - Romanian Natioanal R&D
2874 101 85 38 Global One Services AB
2830 95 243 75 UUNET Dual-Homed customers
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1805 9225 1370 UUNET Technologies, Inc.
7018 1320 7438 944 AT&T
3908 1011 1659 498 Supernet, Inc.
1239 811 3248 646 Sprint
852 753 1175 451 Telus Advanced Communications
1 693 8049 446 GENUITY
4323 639 442 263 Time Warner Communications, I
7843 615 365 234 Adelphia Corp.
7132 592 663 137 Southwestern Bell Internet Se
690 521 75 332 Merit Network
7046 514 886 316 UUNET Technologies, Inc.
209 505 2057 343 Qwest
7066 478 203 254 Virginia Polytechnic Institut
7029 451 164 54 Alltel Information Services,
3549 437 824 313 Global Crossing
6197 379 611 37 BellSouth Network Solutions,
15290 378 297 194 AT&T Canada IES
2149 368 166 271 Performance Systems, Inc.
2914 365 2077 365 Verio, Inc.
6347 345 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1011 513 Supernet, Inc.
4538 539 512 China Education and Research
7132 592 455 Southwestern Bell Internet Se
7029 451 397 Alltel Information Services,
7843 615 381 Adelphia Corp.
7018 1320 376 AT&T
4323 639 376 Time Warner Communications, I
1221 1264 365 Telstra Pty Ltd
6197 379 342 BellSouth Network Solutions,
852 753 302 Telus Advanced Communications
1657 280 278 University of Louisville
4151 289 273 USDA
6347 345 270 SAVVIS Communications Corpora
4355 333 262 EarthLink, Inc.
1 693 247 GENUITY
18566 240 236 Covad Communications
376 330 225 Reseau Interordinateurs Scien
7066 478 224 Virginia Polytechnic Institut
7303 271 211 Telecom Argentina Stet-France
4755 280 206 Videsh Sanchar Nigam Ltd. Aut
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26705 UNALLOCATED 12.111.19.0/24 701 UUNET Technologies,
64511 RESERVED 147.73.0.0/16 5050 Pittsburgh Supercomp
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
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 GENUITY
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
192.44.0.0/19 702 UUNET - Commercial IP service
192.58.92.0/24 19548 Adelphia Business Solutions
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.91.198.0/24 2568 CTS Network Services
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T
192.136.79.0/24 719 LANLINK autonomous system
192.136.86.0/24 719 LANLINK autonomous system
192.136.87.0/24 719 LANLINK autonomous system
192.136.88.0/24 719 LANLINK autonomous system
192.139.62.0/24 6539 GT Group Telecom Services Cor
192.140.0.0/16 5511 France Telecom
192.153.136.0/21 568 DISO-UNRRA
192.156.0.0/19 568 DISO-UNRRA
192.156.164.0/24 19548 Adelphia Business Solutions
192.172.0.0/19 568 DISO-UNRRA
192.195.253.0/24 237 Merit Network
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 7168 Northwest Link
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:7 /10:7 /11:12 /12:37
/13:84 /14:231 /15:419 /16:7288 /17:1474 /18:2681
/19:7770 /20:7544 /21:5269 /22:7977 /23:9682 /24:63493
/25:201 /26:179 /27:100 /28:94 /29:71 /30:113
/31:0 /32:79
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 596 1011 Supernet, Inc.
702 552 903 UUNET - Commercial IP service
701 487 1805 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 415 615 Adelphia Corp.
7066 381 478 Virginia Polytechnic Institut
7018 378 1320 AT&T
7029 356 451 Alltel Information Services,
1657 279 280 University of Louisville
6197 264 379 BellSouth Network Solutions,
6198 243 316 BellSouth Network Solutions,
18566 236 240 Covad Communications
3301 232 394 TeliaNet Sweden
3215 221 289 France Telecom Transpac
1239 214 811 Sprint
1580 202 215 ANOSCEUR
3320 201 269 Deutsche Telekom AG
1 191 693 GENUITY
4355 191 333 EarthLink, Inc.
7046 188 514 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:530 13:10 15:2 17:6
20:3 24:697 25:1 32:41 38:9 40:6
44:1 57:14 61:323 62:245 63:1854 64:1230
65:1424 66:977 67:95 68:80 80:259 81:43
128:67 129:151 130:21 131:55 132:11 133:2
134:121 135:10 136:343 137:95 138:151 139:71
140:174 141:47 142:70 143:50 144:139 145:17
146:240 147:143 148:245 149:79 150:39 151:69
152:271 153:36 154:11 155:114 156:69 157:117
158:67 159:134 160:20 161:76 162:213 163:87
164:255 165:129 166:217 167:253 168:293 169:60
170:231 171:3 192:5467 193:2372 194:2077 195:809
196:415 198:3667 199:3161 200:2734 202:3317 203:4747
204:3247 205:2188 206:2680 207:2551 208:2609 209:2694
210:599 211:238 212:902 213:718 214:9 215:20
216:2846 217:476 218:30 219:1
End of report
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