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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 23 Oct, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116421
Prefixes after maximum aggregation: 74697
Unique aggregates announced to Internet: 55007
Total ASes present in the Internet Routing Table: 13942
Origin-only ASes present in the Internet Routing Table: 12077
Origin ASes announcing only one prefix: 5419
Transit ASes present in the Internet Routing Table: 1865
Transit-only ASes present in the Internet Routing Table: 59
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: 7
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 35
Number of addresses announced to Internet: 1184293320
Equivalent to 70 /8s, 150 /16s and 225 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.6
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48474
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19006
Total APNIC prefixes after maximum aggregation: 11433
Prefixes being announced from the APNIC address blocks: 17493
Unique aggregates announced from the APNIC address blocks: 11066
APNIC Region origin ASes present in the Internet Routing Table: 1621
APNIC Region origin ASes announcing only one prefix: 517
APNIC Region transit ASes present in the Internet Routing Table: 272
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 99372192
Equivalent to 5 /8s, 236 /16s and 76 /24s
Percentage of available APNIC address space announced: 65.4
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: 72901
Total ARIN prefixes after maximum aggregation: 46335
Prefixes being announced from the ARIN address blocks: 51194
Unique aggregates announced from the ARIN address blocks: 15439
ARIN Region origin ASes present in the Internet Routing Table: 7852
ARIN Region origin ASes announcing only one prefix: 2596
ARIN Region transit ASes present in the Internet Routing Table: 755
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 181902688
Equivalent to 10 /8s, 215 /16s and 157 /24s
Percentage of available ARIN address space announced: 67.8
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 - 26591, 26624 - 27647
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7
and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 19708
Total RIPE prefixes after maximum aggregation: 14858
Prefixes being announced from the RIPE address blocks: 16393
Unique aggregates announced from the RIPE address blocks: 10295
RIPE Region origin ASes present in the Internet Routing Table: 4095
RIPE Region origin ASes announcing only one prefix: 2225
RIPE Region transit ASes present in the Internet Routing Table: 758
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 121956544
Equivalent to 7 /8s, 68 /16s and 232 /24s
Percentage of available RIPE address space announced: 80.8
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4800
Total LACNIC prefixes after maximum aggregation: 2071
Prefixes being announced from the LACNIC address blocks: 4142
Unique aggregates announced from the LACNIC address blocks: 2650
LACNIC Region origin ASes present in the Internet Routing Table: 318
LACNIC Region origin ASes announcing only one prefix: 81
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11528192
Equivalent to 0 /8s, 175 /16s and 232 /24s
Percentage of available LACNIC address space announced: 68.7
LACNIC AS Blocks 26592 - 26623
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1194 1185 871 Telstra Pty Ltd
703 395 368 312 UUNET
2907 350 1751 330 SINET Japan
2764 338 356 310 connect.com.au pty ltd
7474 301 275 203 Optus Communications Pty Ltd
17557 301 22 116 Pakistan Telecom
4134 296 2286 97 Data Communications Bureau
4755 281 138 74 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 232 79 15 China Telecom (Group)
17676 224 3506 31 XTAGE CORPORATION
9443 184 57 71 Primus Telecommunications
9583 163 32 5 Satyam Infoway Ltd.,
4515 138 102 76 Star Internet Services Ltd.
9768 135 385 74 Korea Telecom
4716 129 736 123 TTnet
7657 129 23 86 The Internet Group Limited
9800 121 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 115 1049 104 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1785 9141 1271 UUNET Technologies, Inc.
7018 1352 7193 940 AT&T
3908 1073 1652 510 Supernet, Inc.
1239 886 3188 663 Sprint
7843 761 373 318 Adelphia Corp.
852 737 1145 456 Telus Advanced Communications
1 660 8042 435 GENUITY
7046 602 894 300 UUNET Technologies, Inc.
209 573 2048 333 Qwest
4323 518 439 164 Time Warner Communications, I
690 517 75 324 Merit Network
705 488 137 210 UUNET Technologies, Inc.
7132 450 673 70 Southwestern Bell Internet Se
3549 408 726 295 Global Crossing
2548 399 1115 242 Business Internet, Inc.
6197 398 601 40 BellSouth Network Solutions,
6198 396 180 195 BellSouth Network Solutions,
4355 385 306 109 EarthLink, Inc.
2914 367 2020 356 Verio, Inc.
15290 355 212 174 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 870 2374 722 UUNET - Commercial IP service
3301 383 1164 334 TeliaNet Sweden
3215 305 788 170 France Telecom Transpac
3320 243 1964 220 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 211 783 176 Sonera Solution Autonomous Sy
1257 206 414 202 SWIPnet Swedish IP Network
5400 204 83 97 BT Ignite European Backbone
719 191 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 170 1302 132 BTnet UK Regional network
8708 157 41 147 Romania Data Systems S.A.
3303 142 516 141 Swisscom Ltd
3246 122 373 115 Song Networks
12302 122 17 29 MobiFon S.A.
8220 113 168 104 COLT Internet - International
3233 106 10 8 RNC - Romanian Natioanal R&D
3269 106 690 64 TELECOM ITALIA
2874 102 85 39 Global One Services AB
5511 101 192 84 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 244 114 58 ImpSat USA, Inc.
8151 201 330 110 UniNet S.A. de C.V.
7303 178 27 49 Telecom Argentina Stet-France
11172 168 72 33 Servicios Alestra S.A de C.V
6503 155 191 109 AVANTEL, S.A.
16814 106 7 12 NSS, S.A.
13999 105 20 7 Mega Cable S.A. de C.V.
10620 99 6 30 TVCABLE BOGOTA
11992 84 8 31 Integrated Systems
11340 79 2 24 Red Universitaria Nacional
15311 76 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
4270 66 18 10 Red de Interconexion Universi
15034 65 5 33 TIBA SA
7984 64 27 42 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 60 16 3 ECUANET - CORPORACION ECUATOR
8065 59 6 15 Empresas Publicas de Medellin
7927 58 4 40 Global One Venezuela
6535 54 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1073 563 Supernet, Inc.
7843 761 443 Adelphia Corp.
7018 1352 412 AT&T
7132 450 380 Southwestern Bell Internet Se
6197 398 358 BellSouth Network Solutions,
4323 518 354 Time Warner Communications, I
1221 1194 323 Telstra Pty Ltd
18566 322 318 Covad Communications
1580 320 307 ANOSCEUR
7046 602 302 UUNET Technologies, Inc.
852 737 281 Telus Advanced Communications
705 488 278 UUNET Technologies, Inc.
4355 385 276 EarthLink, Inc.
4151 292 276 USDA
6347 349 273 SAVVIS Communications Corpora
209 573 240 Qwest
376 334 231 Reseau Interordinateurs Scien
1 660 225 GENUITY
1239 886 223 Sprint
4814 232 217 China Telecom (Group)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65025 PRIVATE 81.26.65.0/24 11042 Orion Network System
65010 PRIVATE 168.167.21.0/24 11042 Orion Network System
65501 PRIVATE 200.73.24.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.27.0/24 18747 IFX Communication Ve
65501 PRIVATE 200.73.28.0/24 18747 IFX Communication Ve
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
164.236.0.0/16 568 DISO-UNRRA
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
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
192.136.136.0/24 7046 UUNET Technologies, Inc.
192.136.136.0/22 568 DISO-UNRRA
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
192.208.29.0/24 3908 Supernet, Inc.
192.208.30.0/23 3908 Supernet, Inc.
192.243.36.0/23 2044 AUSNet, Inc.
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 /11:12 /12:46
/13:90 /14:238 /15:426 /16:7292 /17:1507 /18:2733
/19:7913 /20:7494 /21:5328 /22:8182 /23:9988 /24:64361
/25:177 /26:225 /27:119 /28:76 /29:54 /30:96
/31:1 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 638 1073 Supernet, Inc.
7843 573 761 Adelphia Corp.
702 538 870 UUNET - Commercial IP service
701 492 1785 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 435 1352 AT&T
18566 316 322 Covad Communications
6198 312 396 BellSouth Network Solutions,
1580 306 320 ANOSCEUR
7046 287 602 UUNET Technologies, Inc.
6197 281 398 BellSouth Network Solutions,
1239 270 886 Sprint
209 257 573 Qwest
3215 230 305 France Telecom Transpac
3301 229 383 TeliaNet Sweden
11492 224 229 Cable One
705 221 488 UUNET Technologies, Inc.
4355 218 385 EarthLink, Inc.
7066 205 307 Virginia Polytechnic Institut
19029 191 219 New Edge Networks
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:572 13:10 15:4 17:7 20:3
24:882 25:1 32:42 38:26 40:10 44:1
55:1 57:15 61:366 62:245 63:1902 64:1320
65:1642 66:1204 67:116 68:174 69:16 80:285
81:60 128:128 129:109 130:18 131:63 132:9
133:2 134:131 135:7 136:508 137:108 138:205
139:71 140:155 141:78 142:79 143:46 144:151
145:18 146:234 147:225 148:254 149:75 150:41
151:90 152:295 153:38 154:8 155:105 156:103
157:104 158:74 159:145 160:20 161:74 162:124
163:84 164:79 165:134 166:104 167:299 168:301
169:60 170:208 171:6 192:5438 193:2373 194:2005
195:816 196:432 198:3635 199:3102 200:2527 202:3494
203:4841 204:3288 205:2121 206:2380 207:2488 208:2566
209:2640 210:604 211:280 212:873 213:793 214:10
215:19 216:3000 217:505 218:49 219:3
End of report
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