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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 Sat 02 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 116558
Prefixes after maximum aggregation: 74956
Unique aggregates announced to Internet: 55927
Total ASes present in the Internet Routing Table: 13999
Origin-only ASes present in the Internet Routing Table: 12140
Origin ASes announcing only one prefix: 5453
Transit ASes present in the Internet Routing Table: 1859
Transit-only ASes present in the Internet Routing Table: 62
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 23
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: 1182236840
Equivalent to 70 /8s, 119 /16s and 128 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 48621
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19086
Total APNIC prefixes after maximum aggregation: 11487
Prefixes being announced from the APNIC address blocks: 17586
Unique aggregates announced from the APNIC address blocks: 11214
APNIC Region origin ASes present in the Internet Routing Table: 1630
APNIC Region origin ASes announcing only one prefix: 517
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: 99981760
Equivalent to 5 /8s, 245 /16s and 153 /24s
Percentage of available APNIC address space announced: 65.8
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 220/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 72880
Total ARIN prefixes after maximum aggregation: 46428
Prefixes being announced from the ARIN address blocks: 51171
Unique aggregates announced from the ARIN address blocks: 15446
ARIN Region origin ASes present in the Internet Routing Table: 7868
ARIN Region origin ASes announcing only one prefix: 2613
ARIN Region transit ASes present in the Internet Routing Table: 739
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 182356704
Equivalent to 10 /8s, 222 /16s and 138 /24s
Percentage of available ARIN address space announced: 67.9
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: 19736
Total RIPE prefixes after maximum aggregation: 14954
Prefixes being announced from the RIPE address blocks: 16429
Unique aggregates announced from the RIPE address blocks: 11012
RIPE Region origin ASes present in the Internet Routing Table: 4124
RIPE Region origin ASes announcing only one prefix: 2243
RIPE Region transit ASes present in the Internet Routing Table: 762
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 14
Number of RIPE addresses announced to Internet: 118825152
Equivalent to 7 /8s, 21 /16s and 32 /24s
Percentage of available RIPE address space announced: 78.7
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: 4850
Total LACNIC prefixes after maximum aggregation: 2087
Prefixes being announced from the LACNIC address blocks: 4218
Unique aggregates announced from the LACNIC address blocks: 2663
LACNIC Region origin ASes present in the Internet Routing Table: 318
LACNIC Region origin ASes announcing only one prefix: 80
LACNIC Region transit ASes present in the Internet Routing Table: 70
Average LACNIC Region AS path length visible: 5.9
Max LACNIC Region AS path length visible: 17
Number of LACNIC addresses announced to Internet: 11642880
Equivalent to 0 /8s, 177 /16s and 168 /24s
Percentage of available LACNIC address space announced: 69.4
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 1189 1169 866 Telstra Pty Ltd
703 396 367 314 UUNET
2907 352 1768 331 SINET Japan
2764 335 356 307 connect.com.au pty ltd
17557 320 23 120 Pakistan Telecom
4134 296 2287 98 Data Communications Bureau
7474 295 275 201 Optus Communications Pty Ltd
4755 279 138 74 Videsh Sanchar Nigam Ltd. Aut
4766 250 1808 158 Korea Internet Exchange for "
4814 233 79 15 China Telecom (Group)
17676 226 3538 32 XTAGE CORPORATION
9443 185 57 73 Primus Telecommunications
9583 164 32 6 Satyam Infoway Ltd.,
4515 138 102 76 Star Internet Services Ltd.
9768 135 385 74 Korea Telecom
4716 130 738 124 TTnet
7657 128 24 90 The Internet Group Limited
9800 122 188 24 CHINA UNICOM
4739 117 56 108 Commerical Internet eXchange
4713 112 1044 101 NTT Communications Corporatio
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1767 9139 1255 UUNET Technologies, Inc.
7018 1341 7185 938 AT&T
3908 1089 1669 513 Supernet, Inc.
1239 911 3170 662 Sprint
7843 783 374 311 Adelphia Corp.
852 690 1163 467 Telus Advanced Communications
1 664 8090 438 GENUITY
209 636 2049 336 Qwest
7046 586 876 292 UUNET Technologies, Inc.
690 517 75 324 Merit Network
4323 516 439 164 Time Warner Communications, I
705 443 134 203 UUNET Technologies, Inc.
6197 439 233 200 BellSouth Network Solutions,
3549 412 728 296 Global Crossing
2548 403 1115 243 Business Internet, Inc.
6198 399 182 197 BellSouth Network Solutions,
19029 389 127 30 New Edge Networks
4355 388 306 109 EarthLink, Inc.
2914 369 2022 362 Verio, Inc.
6347 355 369 76 SAVVIS Communications Corpora
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 831 2367 692 UUNET - Commercial IP service
3301 377 1163 334 TeliaNet Sweden
3215 308 789 172 France Telecom Transpac
3320 245 1964 222 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 210 783 175 Sonera Solution Autonomous Sy
1257 209 415 204 SWIPnet Swedish IP Network
5400 197 84 111 BT Ignite European Backbone
719 190 306 130 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
2856 171 1303 133 BTnet UK Regional network
8708 160 41 147 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
3246 119 373 115 Song Networks
8220 114 169 106 COLT Internet - International
3269 107 721 63 TELECOM ITALIA
3233 106 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
5511 98 192 82 France Telecom
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 254 114 58 ImpSat USA, Inc.
8151 213 346 112 UniNet S.A. de C.V.
7303 184 28 50 Telecom Argentina Stet-France
11172 168 88 34 Servicios Alestra S.A de C.V
6503 151 175 108 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 106 7 12 NSS, S.A.
10620 99 6 30 TVCABLE BOGOTA
11992 80 8 32 Integrated Systems
11340 78 2 29 Red Universitaria Nacional
15311 75 26 32 Telefonica Empresas
1916 73 409 40 Fundacao de Amparo a Pesquisa
4270 71 18 10 Red de Interconexion Universi
7984 64 27 41 Global One Colombia
4926 63 4 51 Telintar S.A.
2277 61 16 3 ECUANET - CORPORACION ECUATOR
8065 61 6 16 Empresas Publicas de Medellin
15034 60 5 34 TIBA SA
11664 55 5 11 Keytech SA
6535 54 4 15 Chilesat Servicios Empresari
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1089 576 Supernet, Inc.
7843 783 472 Adelphia Corp.
7018 1341 403 AT&T
19029 389 359 New Edge Networks
4323 516 352 Time Warner Communications, I
18566 337 333 Covad Communications
1221 1189 323 Telstra Pty Ltd
4151 330 314 USDA
1580 320 307 ANOSCEUR
209 636 300 Qwest
7046 586 294 UUNET Technologies, Inc.
4355 388 279 EarthLink, Inc.
6347 355 279 SAVVIS Communications Corpora
1239 911 249 Sprint
376 346 242 Reseau Interordinateurs Scien
705 443 240 UUNET Technologies, Inc.
6197 439 239 BellSouth Network Solutions,
1 664 226 GENUITY
852 690 223 Telus Advanced Communications
11492 230 221 Cable One
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 /8:17 /9:5 /10:8 /11:12 /12:46
/13:90 /14:240 /15:428 /16:7309 /17:1512 /18:2750
/19:7889 /20:7512 /21:5355 /22:8194 /23:9920 /24:64539
/25:174 /26:198 /27:108 /28:80 /29:50 /30:91
/31:0 /32:31
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 641 1089 Supernet, Inc.
7843 593 783 Adelphia Corp.
702 502 831 UUNET - Commercial IP service
701 492 1767 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 425 1341 AT&T
19029 355 389 New Edge Networks
6197 332 439 BellSouth Network Solutions,
18566 332 337 Covad Communications
209 316 636 Qwest
6198 315 399 BellSouth Network Solutions,
1580 306 320 ANOSCEUR
1239 289 911 Sprint
7046 273 586 UUNET Technologies, Inc.
3215 233 308 France Telecom Transpac
11492 225 230 Cable One
3301 223 377 TeliaNet Sweden
4355 219 388 EarthLink, Inc.
7066 205 306 Virginia Polytechnic Institut
3320 188 245 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 12:580 13:10 15:4 17:2 20:5
24:902 25:1 32:43 38:26 40:12 44:1
55:1 57:15 61:368 62:252 63:1918 64:1355
65:1642 66:1207 67:123 68:200 69:16 80:288
81:62 128:128 129:107 130:21 131:63 132:9
133:2 134:135 135:7 136:411 137:108 138:217
139:78 140:157 141:86 142:81 143:46 144:148
145:16 146:251 147:225 148:252 149:77 150:41
151:90 152:294 153:36 154:8 155:106 156:103
157:105 158:91 159:150 160:20 161:74 162:130
163:83 164:81 165:134 166:94 167:306 168:304
169:59 170:228 171:6 192:5428 193:2383 194:2006
195:834 196:438 198:3612 199:3081 200:2567 202:3529
203:4858 204:3242 205:2125 206:2356 207:2464 208:2551
209:2735 210:619 211:279 212:864 213:776 214:10
215:20 216:3010 217:495 218:48 219:3
End of report
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