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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 Mon 12 Aug, 2002
Analysis Summary
----------------
BGP routing table entries examined: 114953
Prefixes after maximum aggregation: 74098
Unique aggregates announced to Internet: 54894
Total ASes present in the Internet Routing Table: 13516
Origin-only ASes present in the Internet Routing Table: 11689
Origin ASes announcing only one prefix: 5193
Transit ASes present in the Internet Routing Table: 1827
Transit-only ASes present in the Internet Routing Table: 54
Average AS path length visible in the Internet Routing Table: 5.4
Max AS path length visible: 20
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: 1180411768
Equivalent to 70 /8s, 91 /16s and 167 /24s
Percentage of available address space announced: 31.8
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 46801
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 18961
Total APNIC prefixes after maximum aggregation: 11231
Prefixes being announced from the APNIC address blocks: 17462
Unique aggregates announced from the APNIC address blocks: 10636
APNIC Region origin ASes present in the Internet Routing Table: 1583
APNIC Region origin ASes announcing only one prefix: 512
APNIC Region transit ASes present in the Internet Routing Table: 280
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 91011040
Equivalent to 5 /8s, 108 /16s and 183 /24s
Percentage of available APNIC address space announced: 59.9
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 76697
Total ARIN prefixes after maximum aggregation: 48281
Prefixes being announced from the ARIN address blocks: 54283
Unique aggregates announced from the ARIN address blocks: 18138
ARIN Region origin ASes present in the Internet Routing Table: 7950
ARIN Region origin ASes announcing only one prefix: 2560
ARIN Region transit ASes present in the Internet Routing Table: 796
Average ARIN Region AS path length visible: 5.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 190410576
Equivalent to 11 /8s, 89 /16s and 111 /24s
Percentage of available ARIN address space announced: 66.8
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: 19294
Total RIPE prefixes after maximum aggregation: 14586
Prefixes being announced from the RIPE address blocks: 16019
Unique aggregates announced from the RIPE address blocks: 10496
RIPE Region origin ASes present in the Internet Routing Table: 3930
RIPE Region origin ASes announcing only one prefix: 2121
RIPE Region transit ASes present in the Internet Routing Table: 738
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 113151488
Equivalent to 6 /8s, 190 /16s and 142 /24s
Percentage of available RIPE address space announced: 74.9
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 1255 1193 894 Telstra Pty Ltd
4538 561 1279 27 China Education and Research
703 416 377 325 UUNET
2907 364 1832 342 SINET Japan
2764 360 358 331 connect.com.au pty ltd
7474 317 296 213 Optus Communications Pty Ltd
17557 298 20 95 Pakistan Telecom
4134 295 2182 104 Data Communications Bureau
4755 282 111 74 Videsh Sanchar Nigam Ltd. Aut
4766 249 1506 156 Korea Internet Exchange for "
4814 220 79 14 China Telecom (Group)
9583 181 32 5 Satyam Infoway Ltd.,
17676 180 2802 32 XTAGE CORPORATION
9443 169 45 68 Primus Telecommunications
7539 149 191 144 TANet2, sponsored by NSC, TAI
9768 144 385 74 Korea Telecom
7657 132 22 91 The Internet Group Limited
9800 124 191 18 CHINA UNICOM
4713 115 1009 106 NTT Communications Corporatio
4621 113 11 63 UNINET-TH
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 898 2418 755 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 254 1962 214 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5400 211 85 100 BT Ignite European Backbone
1257 207 446 202 SWIPnet Swedish IP Network
719 182 306 128 LANLINK autonomous system
786 177 1873 177 The JANET IP Service
3303 142 548 141 Swisscom Ltd
8708 142 24 139 Romania Data Systems S.A.
2856 126 786 116 BTnet UK Regional network
12302 124 18 31 MobiFon S.A.
3246 112 317 107 Song Networks
5511 110 192 88 France Telecom
3269 106 658 63 TELECOM ITALIA
3233 105 10 9 RNC - Romanian Natioanal R&D
2874 101 85 38 Global One Services AB
8297 94 46 51 BCE Teleglobe Canada Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1792 9145 1360 UUNET Technologies, Inc.
7018 1307 7415 931 AT&T
3908 1010 1659 498 Supernet, Inc.
1239 814 3250 649 Sprint
852 752 1175 449 Telus Advanced Communications
1 680 8052 447 GENUITY
4323 639 442 263 Time Warner Communications, I
7843 628 366 225 Adelphia Corp.
7132 593 663 137 Southwestern Bell Internet Se
690 521 75 328 Merit Network
7046 514 886 316 UUNET Technologies, Inc.
209 503 2057 343 Qwest
7066 486 203 254 Virginia Polytechnic Institut
2548 473 1162 285 Business Internet, Inc.
7029 452 164 54 Alltel Information Services,
3549 439 824 314 Global Crossing
6197 379 611 37 BellSouth Network Solutions,
15290 377 297 193 AT&T Canada IES
2914 364 2077 364 Verio, Inc.
6347 346 370 75 SAVVIS Communications Corpora
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4538 561 534 China Education and Research
3908 1010 512 Supernet, Inc.
7132 593 456 Southwestern Bell Internet Se
7843 628 403 Adelphia Corp.
7029 452 398 Alltel Information Services,
7018 1307 376 AT&T
4323 639 376 Time Warner Communications, I
1221 1255 361 Telstra Pty Ltd
6197 379 342 BellSouth Network Solutions,
852 752 303 Telus Advanced Communications
4151 295 279 USDA
6347 346 271 SAVVIS Communications Corpora
4355 335 264 EarthLink, Inc.
18566 242 238 Covad Communications
1 680 233 GENUITY
7066 486 232 Virginia Polytechnic Institut
376 329 225 Reseau Interordinateurs Scien
4755 282 208 Videsh Sanchar Nigam Ltd. Aut
7303 267 207 Telecom Argentina Stet-France
4814 220 206 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
26705 UNALLOCATED 12.111.19.0/24 701 UUNET Technologies,
1877 UNALLOCATED 192.36.147.0/24 1878 Peter & Paul's test
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 /9:6 /10:7 /11:12 /12:37
/13:84 /14:231 /15:418 /16:7300 /17:1469 /18:2693
/19:7789 /20:7582 /21:5293 /22:8010 /23:9735 /24:63557
/25:204 /26:180 /27:99 /28:81 /29:41 /30:74
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 595 1010 Supernet, Inc.
702 548 898 UUNET - Commercial IP service
701 486 1792 UUNET Technologies, Inc.
690 467 521 Merit Network
7843 427 628 Adelphia Corp.
7066 389 486 Virginia Polytechnic Institut
7018 373 1307 AT&T
7029 357 452 Alltel Information Services,
6197 264 379 BellSouth Network Solutions,
6198 244 317 BellSouth Network Solutions,
18566 238 242 Covad Communications
3301 234 394 TeliaNet Sweden
3215 221 289 France Telecom Transpac
1239 214 814 Sprint
1580 200 213 ANOSCEUR
4355 193 335 EarthLink, Inc.
7046 188 514 UUNET Technologies, Inc.
3320 187 254 Deutsche Telekom AG
209 185 503 Qwest
4323 185 639 Time Warner Communications, I
Number of /24s announced per /8 block (Global)
----------------------------------------------
3:1 4:3 12:534 13:10 15:2 17:6
20:4 24:708 25:1 32:41 38:9 40:6
44:1 57:15 61:320 62:245 63:1854 64:1220
65:1427 66:1075 67:95 68:82 80:262 81:45
128:66 129:139 130:20 131:56 132:11 133:2
134:124 135:10 136:502 137:96 138:150 139:72
140:186 141:51 142:69 143:50 144:140 145:18
146:242 147:143 148:246 149:78 150:40 151:70
152:267 153:38 154:11 155:115 156:70 157:113
158:68 159:134 160:18 161:77 162:216 163:86
164:262 165:127 166:215 167:254 168:284 169:60
170:206 171:3 192:5453 193:2356 194:2066 195:800
196:416 198:3682 199:3170 200:2704 202:3332 203:4740
204:3209 205:2194 206:2538 207:2602 208:2606 209:2713
210:602 211:239 212:881 213:713 214:8 215:19
216:2837 217:474 218:31 219:2
End of report
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