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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 31 Dec, 2002
Analysis Summary
----------------
BGP routing table entries examined: 118794
Prefixes after maximum aggregation: 76036
Unique aggregates announced to Internet: 56833
Total ASes present in the Internet Routing Table: 14312
Origin-only ASes present in the Internet Routing Table: 12428
Origin ASes announcing only one prefix: 5613
Transit ASes present in the Internet Routing Table: 1884
Transit-only ASes present in the Internet Routing Table: 61
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 21
Illegal AS announcements present in the Routing Table: 6
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 34
Number of addresses announced to Internet: 1187740121
Equivalent to 70 /8s, 203 /16s and 121 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 54.6
Total number of prefixes smaller than registry allocations: 54978
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 19663
Total APNIC prefixes after maximum aggregation: 11697
Prefixes being announced from the APNIC address blocks: 18203
Unique aggregates announced from the APNIC address blocks: 11209
APNIC Region origin ASes present in the Internet Routing Table: 1694
APNIC Region origin ASes announcing only one prefix: 529
APNIC Region transit ASes present in the Internet Routing Table: 286
Average APNIC Region AS path length visible: 5.3
Max APNIC Region AS path length visible: 12
Number of APNIC addresses announced to Internet: 102449568
Equivalent to 6 /8s, 27 /16s and 65 /24s
Percentage of available APNIC address space announced: 67.4
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: 73664
Total ARIN prefixes after maximum aggregation: 46961
Prefixes being announced from the ARIN address blocks: 51448
Unique aggregates announced from the ARIN address blocks: 15758
ARIN Region origin ASes present in the Internet Routing Table: 8008
ARIN Region origin ASes announcing only one prefix: 2708
ARIN Region transit ASes present in the Internet Routing Table: 752
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 184649456
Equivalent to 11 /8s, 1 /16s and 134 /24s
Percentage of available ARIN address space announced: 68.8
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: 20405
Total RIPE prefixes after maximum aggregation: 15193
Prefixes being announced from the RIPE address blocks: 17003
Unique aggregates announced from the RIPE address blocks: 11344
RIPE Region origin ASes present in the Internet Routing Table: 4228
RIPE Region origin ASes announcing only one prefix: 2297
RIPE Region transit ASes present in the Internet Routing Table: 770
Average RIPE Region AS path length visible: 5.7
Max RIPE Region AS path length visible: 16
Number of RIPE addresses announced to Internet: 121886976
Equivalent to 7 /8s, 67 /16s and 217 /24s
Percentage of available RIPE address space announced: 80.7
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, 28672 - 29695
RIPE Address Blocks 62/8, 80/7, 82/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 5059
Total LACNIC prefixes after maximum aggregation: 2185
Prefixes being announced from the LACNIC address blocks: 4425
Unique aggregates announced from the LACNIC address blocks: 2864
LACNIC Region origin ASes present in the Internet Routing Table: 323
LACNIC Region origin ASes announcing only one prefix: 79
LACNIC Region transit ASes present in the Internet Routing Table: 68
Average LACNIC Region AS path length visible: 5.7
Max LACNIC Region AS path length visible: 11
Number of LACNIC addresses announced to Internet: 11784448
Equivalent to 0 /8s, 179 /16s and 209 /24s
Percentage of available LACNIC address space announced: 70.2
LACNIC AS Blocks 26592 - 26623, 27648 - 28671
LACNIC Address Blocks 200/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
1221 1139 1167 823 Telstra Pty Ltd
703 397 364 313 UUNET
2907 359 1785 335 SINET Japan
2764 342 341 311 connect.com.au pty ltd
17557 324 23 129 Pakistan Telecom
7474 311 281 205 Optus Communications Pty Ltd
4134 289 2408 91 Data Communications Bureau
4755 259 134 75 Videsh Sanchar Nigam Ltd. Aut
4814 249 79 15 China Telecom (Group)
17676 231 3618 24 XTAGE CORPORATION
3786 200 766 176 DACOM Corporation
9583 193 33 12 Satyam Infoway Ltd.,
4766 192 1792 148 Korea Internet Exchange for "
9443 186 57 76 Primus Telecommunications
9800 165 203 42 CHINA UNICOM
4716 130 724 124 TTnet
9768 128 384 63 Korea Telecom
7657 124 26 87 The Internet Group Limited
4739 120 56 110 Commerical Internet eXchange
4621 119 11 64 UNINET-TH
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
701 1639 9037 1208 UUNET Technologies, Inc.
7018 1421 7680 953 AT&T
3908 1184 1635 498 Supernet, Inc.
1239 950 3151 679 Sprint
1 666 8107 439 GENUITY
7843 627 404 278 Adelphia Corp.
852 624 1140 443 Telus Advanced Communications
7046 552 859 259 UUNET Technologies, Inc.
4323 532 487 168 Time Warner Communications, I
209 521 2048 335 Qwest
690 513 75 319 Merit Network
7066 489 204 257 Virginia Polytechnic Institut
6197 454 561 104 BellSouth Network Solutions,
705 424 133 189 UUNET Technologies, Inc.
6198 421 182 196 BellSouth Network Solutions,
3561 416 2228 346 Cable & Wireless USA
18566 414 96 5 Covad Communications
4355 407 313 118 EarthLink, Inc.
3549 402 709 295 Global Crossing
15290 393 215 176 AT&T Canada IES
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 805 2290 669 UUNET - Commercial IP service
3301 344 1142 300 TeliaNet Sweden
3215 313 819 174 France Telecom Transpac
3320 253 1979 226 Deutsche Telekom AG
680 237 2150 234 DFN-IP service G-WiN
5515 213 783 174 Sonera Solution Autonomous Sy
1257 212 416 201 SWIPnet Swedish IP Network
719 197 306 128 LANLINK autonomous system
786 176 1873 176 The JANET IP Service
5400 162 70 98 BT Ignite European Backbone
8708 157 42 147 Romania Data Systems S.A.
20858 148 17 4 This AS will be used to conne
3303 145 517 144 Swisscom Ltd
2856 130 1300 118 BTnet UK Regional network
8220 124 174 114 COLT Internet - International
12302 123 18 30 MobiFon S.A.
3246 118 378 115 Song Networks
3269 111 754 63 TELECOM ITALIA
5511 106 193 83 France Telecom
3233 104 10 8 RNC - Romanian Natioanal R&D
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 315 98 104 ImpSat USA, Inc.
7303 224 36 50 Telecom Argentina Stet-France
8151 208 331 113 UniNet S.A. de C.V.
11172 169 87 33 Servicios Alestra S.A de C.V
6503 157 191 110 AVANTEL, S.A.
13999 127 36 8 Mega Cable S.A. de C.V.
16814 108 7 13 NSS, S.A.
10620 98 6 32 TVCABLE BOGOTA
11340 82 2 33 Red Universitaria Nacional
6147 76 58 24 Telefonica Del Peru
1916 74 306 44 Fundacao de Amparo a Pesquisa
6535 72 5 16 Chilesat Servicios Empresari
15311 72 27 37 Telefonica Empresas
4270 69 18 10 Red de Interconexion Universi
8065 67 6 14 Empresas Publicas de Medellin
11992 67 7 31 Integrated Systems
7984 63 11 40 Global One Colombia
4926 59 4 49 Telintar S.A.
7927 57 5 40 Global One Venezuela
15034 57 5 33 TIBA SA
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
3908 1184 686 Supernet, Inc.
7018 1421 468 AT&T
18566 414 409 Covad Communications
4323 532 364 Time Warner Communications, I
6197 454 350 BellSouth Network Solutions,
7843 627 349 Adelphia Corp.
1221 1139 316 Telstra Pty Ltd
1580 314 300 ANOSCEUR
7046 552 293 UUNET Technologies, Inc.
4355 407 289 EarthLink, Inc.
6347 362 283 SAVVIS Communications Corpora
11492 280 279 Cable One
1239 950 271 Sprint
4151 325 267 USDA
22927 289 267 TELEFONICA DE ARGENTINA
376 340 239 Reseau Interordinateurs Scien
705 424 235 UUNET Technologies, Inc.
4814 249 234 China Telecom (Group)
7066 489 232 Virginia Polytechnic Institut
1 666 227 GENUITY
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64516 PRIVATE 137.164.227.0/24 2150 California State Uni
64516 PRIVATE 137.164.228.0/22 2150 California State Uni
1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p
1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p
65000 PRIVATE 203.21.203.0/24 1221 Telstra Pty Ltd
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
158.255.3.0/24 702 UUNET - Commercial IP service
164.236.0.0/16 568 DISO-UNRRA
178.54.59.0/24 7018 AT&T
192.31.242.0/24 771 NASA Ames Research Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.68.128.0/22 1239 Sprint
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
192.119.135.0/24 270 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
192.208.29.0/24 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 /9:3 /10:8 /11:12 /12:46
/13:92 /14:238 /15:439 /16:7320 /17:1547 /18:2808
/19:7988 /20:7715 /21:5582 /22:8442 /23:10171 /24:65701
/25:129 /26:167 /27:89 /28:77 /29:57 /30:107
/31:0 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
3908 751 1184 Supernet, Inc.
702 494 805 UUNET - Commercial IP service
7018 485 1421 AT&T
690 462 513 Merit Network
701 443 1639 UUNET Technologies, Inc.
18566 409 414 Covad Communications
7843 406 627 Adelphia Corp.
7066 386 489 Virginia Polytechnic Institut
6198 337 421 BellSouth Network Solutions,
1239 335 950 Sprint
6197 331 454 BellSouth Network Solutions,
6140 303 315 ImpSat USA, Inc.
1580 299 314 ANOSCEUR
22927 288 289 TELEFONICA DE ARGENTINA
11492 279 280 Cable One
7046 245 552 UUNET Technologies, Inc.
3215 239 313 France Telecom Transpac
20115 234 344 Charter Communications
4355 225 407 EarthLink, Inc.
7303 223 224 Telecom Argentina Stet-France
Number of /24s announced per /8 block (Global)
----------------------------------------------
12:617 13:1 15:6 17:3 20:7 24:805
25:1 32:45 38:32 40:17 44:1 55:1
57:16 61:412 62:428 63:1862 64:1333 65:1751
66:1330 67:192 68:213 69:46 80:313 81:79
128:124 129:182 130:20 131:72 132:9 133:2
134:151 135:6 136:490 137:109 138:216 139:84
140:155 141:99 142:93 143:44 144:146 145:18
146:248 147:248 148:277 149:77 150:43 151:89
152:291 153:36 154:7 155:102 156:44 157:58
158:120 159:138 160:23 161:64 162:143 163:84
164:255 165:133 166:83 167:296 168:383 169:57
170:291 171:7 178:1 192:5426 193:2400 194:2015
195:898 196:455 198:3575 199:3057 200:2738 202:3621
203:4858 204:3001 205:2118 206:2324 207:2424 208:2585
209:2685 210:659 211:302 212:881 213:763 214:12
215:21 216:3103 217:541 218:71 219:14 220:25
End of report
