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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 01 Nov, 2002
Analysis Summary
----------------
BGP routing table entries examined: 117005
Prefixes after maximum aggregation: 74911
Unique aggregates announced to Internet: 55987
Total ASes present in the Internet Routing Table: 14001
Origin-only ASes present in the Internet Routing Table: 12136
Origin ASes announcing only one prefix: 5455
Transit ASes present in the Internet Routing Table: 1865
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: 1182143080
Equivalent to 70 /8s, 118 /16s and 18 /24s
Percentage of available address space announced: 31.9
Percentage of allocated address space announced: 58.4
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 49092
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19087
Total APNIC prefixes after maximum aggregation: 11477
Prefixes being announced from the APNIC address blocks: 17571
Unique aggregates announced from the APNIC address blocks: 11189
APNIC Region origin ASes present in the Internet Routing Table: 1629
APNIC Region origin ASes announcing only one prefix: 519
APNIC Region transit ASes present in the Internet Routing Table: 276
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 99723168
Equivalent to 5 /8s, 241 /16s and 167 /24s
Percentage of available APNIC address space announced: 65.6
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: 73202
Total ARIN prefixes after maximum aggregation: 46347
Prefixes being announced from the ARIN address blocks: 51517
Unique aggregates announced from the ARIN address blocks: 15439
ARIN Region origin ASes present in the Internet Routing Table: 7867
ARIN Region origin ASes announcing only one prefix: 2613
ARIN Region transit ASes present in the Internet Routing Table: 744
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 23
Number of ARIN addresses announced to Internet: 182358496
Equivalent to 10 /8s, 222 /16s and 145 /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: 19860
Total RIPE prefixes after maximum aggregation: 15005
Prefixes being announced from the RIPE address blocks: 16536
Unique aggregates announced from the RIPE address blocks: 11111
RIPE Region origin ASes present in the Internet Routing Table: 4127
RIPE Region origin ASes announcing only one prefix: 2243
RIPE Region transit ASes present in the Internet Routing Table: 763
Average RIPE Region AS path length visible: 5.8
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 118733280
Equivalent to 7 /8s, 19 /16s and 185 /24s
Percentage of available RIPE address space announced: 78.6
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 4850
Total LACNIC prefixes after maximum aggregation: 2082
Prefixes being announced from the LACNIC address blocks: 4213
Unique aggregates announced from the LACNIC address blocks: 2661
LACNIC Region origin ASes present in the Internet Routing Table: 319
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: 11640576
Equivalent to 0 /8s, 177 /16s and 159 /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 1188 1169 866 Telstra Pty Ltd
703 396 367 314 UUNET
2907 350 1751 330 SINET Japan
2764 334 356 306 connect.com.au pty ltd
17557 317 23 120 Pakistan Telecom
4134 296 2287 98 Data Communications Bureau
7474 292 275 201 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 129 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 1778 9140 1264 UUNET Technologies, Inc.
7018 1345 7188 942 AT&T
3908 1086 1669 514 Supernet, Inc.
1239 901 3186 661 Sprint
7843 780 374 311 Adelphia Corp.
852 688 1163 466 Telus Advanced Communications
1 666 8106 439 GENUITY
209 635 2049 336 Qwest
7046 587 876 291 UUNET Technologies, Inc.
690 517 75 324 Merit Network
4323 516 439 164 Time Warner Communications, I
2828 475 598 104 XO Communications
6197 459 601 40 BellSouth Network Solutions,
705 441 134 201 UUNET Technologies, Inc.
3549 413 728 297 Global Crossing
2548 402 1115 243 Business Internet, Inc.
6198 397 181 196 BellSouth Network Solutions,
4355 388 306 109 EarthLink, Inc.
2914 369 2022 362 Verio, Inc.
19029 362 128 31 New Edge Networks
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 836 2367 690 UUNET - Commercial IP service
3301 377 1163 334 TeliaNet Sweden
3215 307 789 172 France Telecom Transpac
3320 245 1964 222 Deutsche Telekom AG
680 238 2151 234 DFN-IP service G-WiN
5515 211 783 176 Sonera Solution Autonomous Sy
1257 209 415 204 SWIPnet Swedish IP Network
5400 198 84 110 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 158 41 146 Romania Data Systems S.A.
3303 143 517 142 Swisscom Ltd
12302 123 18 30 MobiFon S.A.
3246 120 373 116 Song Networks
8220 114 169 106 COLT Internet - International
3269 107 721 63 TELECOM ITALIA
20858 107 8 52 This AS will be used to conne
3233 105 10 8 RNC - Romanian Natioanal R&D
2874 99 85 39 Global One Services AB
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 254 114 58 ImpSat USA, Inc.
8151 212 346 111 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 152 175 109 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 72 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
6535 54 4 15 Chilesat Servicios Empresari
7927 54 5 39 Global One Venezuela
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1086 572 Supernet, Inc.
7843 780 469 Adelphia Corp.
6197 459 419 BellSouth Network Solutions,
7018 1345 403 AT&T
2828 475 371 XO Communications
4323 516 352 Time Warner Communications, I
19029 362 331 New Edge Networks
18566 333 329 Covad Communications
1221 1188 322 Telstra Pty Ltd
1580 319 306 ANOSCEUR
209 635 299 Qwest
7046 587 296 UUNET Technologies, Inc.
4355 388 279 EarthLink, Inc.
6347 355 279 SAVVIS Communications Corpora
4151 292 276 USDA
376 346 242 Reseau Interordinateurs Scien
1239 901 240 Sprint
705 441 240 UUNET Technologies, Inc.
1 666 227 GENUITY
852 688 222 Telus Advanced Communications
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 /14:239 /15:428 /16:7313 /17:1510 /18:2749
/19:7897 /20:7499 /21:5359 /22:8230 /23:9989 /24:64876
/25:176 /26:202 /27:110 /28:78 /29:51 /30:92
/31:0 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 641 1086 Supernet, Inc.
7843 590 780 Adelphia Corp.
702 507 836 UUNET - Commercial IP service
701 494 1778 UUNET Technologies, Inc.
690 465 517 Merit Network
7018 428 1345 AT&T
2828 370 475 XO Communications
6197 334 459 BellSouth Network Solutions,
18566 328 333 Covad Communications
19029 328 362 New Edge Networks
209 315 635 Qwest
6198 313 397 BellSouth Network Solutions,
1580 305 319 ANOSCEUR
1239 285 901 Sprint
7046 274 587 UUNET Technologies, Inc.
3215 232 307 France Telecom Transpac
11492 225 230 Cable One
3301 223 377 TeliaNet Sweden
4355 219 388 EarthLink, Inc.
7066 205 306 Virginia Polytechnic Institut
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:6 12:579 13:10 15:4 17:2 20:5
24:903 25:1 32:43 38:26 40:11 44:1
55:1 57:15 61:368 62:355 63:1919 64:1376
65:1638 66:1217 67:122 68:198 69:16 80:287
81:61 128:126 129:106 130:21 131:63 132:9
133:2 134:141 135:7 136:410 137:108 138:217
139:78 140:157 141:86 142:81 143:46 144:147
145:16 146:251 147:226 148:249 149:77 150:42
151:88 152:295 153:36 154:8 155:106 156:103
157:105 158:90 159:150 160:20 161:74 162:130
163:84 164:88 165:134 166:94 167:306 168:304
169:59 170:227 171:6 192:5428 193:2390 194:1998
195:832 196:435 198:3617 199:3050 200:2565 202:3524
203:4856 204:3244 205:2125 206:2366 207:2467 208:2562
209:2726 210:608 211:281 212:871 213:770 214:10
215:20 216:3232 217:511 218:48 219:3
End of report
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