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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 20 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149044
Prefixes after maximum aggregation: 88144
Unique aggregates announced to Internet: 71356
Total ASes present in the Internet Routing Table: 18272
Origin-only ASes present in the Internet Routing Table: 15856
Origin ASes announcing only one prefix: 7430
Transit ASes present in the Internet Routing Table: 2416
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 28
Prefixes from unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1345618796
Equivalent to 80 /8s, 52 /16s and 131 /24s
Percentage of available address space announced: 36.3
Percentage of allocated address space announced: 58.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 68639
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 28987
Total APNIC prefixes after maximum aggregation: 14340
Prefixes being announced from the APNIC address blocks: 27139
Unique aggregates announced from the APNIC address blocks: 14287
APNIC Region origin ASes present in the Internet Routing Table: 2156
APNIC Region origin ASes announcing only one prefix: 645
APNIC Region transit ASes present in the Internet Routing Table: 333
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 165103744
Equivalent to 9 /8s, 215 /16s and 72 /24s
Percentage of available APNIC address space announced: 75.3
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 84522
Total ARIN prefixes after maximum aggregation: 51452
Prefixes being announced from the ARIN address blocks: 64671
Unique aggregates announced from the ARIN address blocks: 23189
ARIN Region origin ASes present in the Internet Routing Table: 9629
ARIN Region origin ASes announcing only one prefix: 3464
ARIN Region transit ASes present in the Internet Routing Table: 934
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234120192
Equivalent to 13 /8s, 244 /16s and 100 /24s
Percentage of available ARIN address space announced: 69.8
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,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 27797
Total RIPE prefixes after maximum aggregation: 19299
Prefixes being announced from the RIPE address blocks: 24624
Unique aggregates announced from the RIPE address blocks: 16111
RIPE Region origin ASes present in the Internet Routing Table: 5927
RIPE Region origin ASes announcing only one prefix: 3189
RIPE Region transit ASes present in the Internet Routing Table: 1025
Average RIPE Region AS path length visible: 5.4
Max RIPE Region AS path length visible: 28
Number of RIPE addresses announced to Internet: 174465664
Equivalent to 10 /8s, 102 /16s and 34 /24s
Percentage of available RIPE address space announced: 61.2
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
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6471
Total LACNIC prefixes after maximum aggregation: 2363
Prefixes being announced from the LACNIC address blocks: 6319
Unique aggregates announced from the LACNIC address blocks: 3774
LACNIC Region origin ASes present in the Internet Routing Table: 395
LACNIC Region origin ASes announcing only one prefix: 112
LACNIC Region transit ASes present in the Internet Routing Table: 79
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16298240
Equivalent to 0 /8s, 248 /16s and 177 /24s
Percentage of available LACNIC address space announced: 48.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1263
Total AfriNIC prefixes after maximum aggregation: 690
Prefixes being announced from the AfriNIC address blocks: 892
Unique aggregates announced from the AfriNIC address blocks: 682
AfriNIC Region origin ASes present in the Internet Routing Table: 93
AfriNIC Region origin ASes announcing only one prefix: 20
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2069760
Equivalent to 0 /8s, 31 /16s and 149 /24s
Percentage of available AfriNIC address space announced: 12.3
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 855 4407 163 Data Communications Bureau
1221 805 1183 579 Telstra Pty Ltd
4766 547 3407 266 Korea Internet Exchange for "
9583 535 41 104 Satyam Infoway Ltd.,
4755 374 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
2907 354 1857 328 SINET Japan
9443 353 69 79 Primus Telecommunications
9929 346 161 33 China Netcom Corp.
17557 317 23 158 Pakistan Telecom
703 311 342 240 UUNET
2764 284 272 232 connect.com.au pty ltd
7474 262 268 197 Optus Communications Pty Ltd
9942 235 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 230 50 49 BHARTI BT INTERNET LTD.
9800 230 374 67 CHINA UNICOM
4814 206 232 6 China Telecom (Group)
7563 206 48 162 Korea Internet Infrastructure
10036 204 19 185 C&M Communication Co. Ltd.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1422 6743 989 AT&T WorldNet Services
701 1247 8418 895 UUNET Technologies, Inc.
1239 936 2867 623 Sprint
2386 845 532 608 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 792 638 216 Time Warner Telecom
18566 746 208 6 Covad Communications
721 721 21036 298 DLA Systems Automation Center
3356 642 10955 442 Level 3 Communications, LLC
209 635 3469 502 Qwest
20115 599 427 303 Charter Communications
3561 560 2433 423 Cable & Wireless USA
852 511 1142 397 Telus Advanced Communications
7843 495 701 99 Adelphia Corp.
7132 448 8287 376 SBC Internet Services
6198 442 504 188 BellSouth Network Solutions,
705 432 163 273 UUNET Technologies, Inc.
6478 415 728 93 AT&T Worldnet Services
27364 411 36 19 Armstrong Cable Services
22909 405 866 26 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 630 2013 521 UUNET - Commercial IP service
3320 302 2486 239 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 280 1100 270 TeliaNet Sweden
21502 269 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 218 476 215 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 208 743 180 SWIPnet Swedish IP Network
8708 205 114 183 Romania Data Systems S.A.
5515 201 843 147 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 160 30 129 Dynamic Network Technologies,
719 157 288 102 LANLINK autonomous system
3215 157 940 78 France Telecom Transpac
8866 153 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 207 120 BT Ignite European Backbone
25186 149 154 105 France Telecom Transpac's Tra
3303 147 610 129 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 347 138 67 ImpSat
8151 306 440 131 UniNet S.A. de C.V.
16814 211 13 7 NSS, S.A.
11172 206 100 54 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 165 12 30 Keytech SA
6505 137 90 94 Global One Communicaoes Ltda
7303 135 60 24 Telecom Argentina Stet-France
6503 123 164 84 AVANTEL, S.A.
11992 101 9 31 Integrated Systems
14117 97 6 8 Telefonica del Sur S.A.
11311 86 8 25 Sinectis S.A.
6535 85 7 19 Chilesat Servicios Empresari
11556 81 41 3 Cable-Wireless Panama
10481 80 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 79 18 9 Red de Interconexion Universi
15311 76 21 36 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
14522 74 5 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 251 631 218 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 94 297 92 Tertiary Education Network
2905 93 276 81 The Internetworking Company o
20928 57 16 1 Noor Advanced Technologies AS
22750 50 3 2 BCS-Net (PTY) Ltd
24835 34 34 7 RAYA Telecom - Egypt
9129 32 3 4 UUNET Kenya
6713 31 42 10 Itissalat Al-MAGHRIB
5713 26 125 24 Telkom SA Ltd
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
12455 17 4 2 Jambonet Autonomous system
8346 15 7 14 SONATEL-AS Autonomous System
14988 15 16 1 Botswana Telecommunications C
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 4 UTL On-line is RF broadband I
21280 14 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 855 692 Data Communications Bureau
4323 792 576 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 535 431 Satyam Infoway Ltd.,
721 721 423 DLA Systems Automation Center
7843 495 396 Adelphia Corp.
27364 411 392 Armstrong Cable Services
5668 403 385 Century Telephone
22909 405 379 Comcast Cable Corporation
22773 393 375 Cox Communications, Inc. Atla
6467 399 368 E.Spire Communications, Inc.
701 1247 352 UUNET Technologies, Inc.
6478 415 322 AT&T Worldnet Services
4755 374 321 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 936 313 Sprint
9929 346 313 China Netcom Corp.
20115 599 296 Charter Communications
4355 389 290 EarthLink, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65006 PRIVATE 84.18.32.0/19 33831 *
65217 PRIVATE 192.102.236.0/24 217 University of Minnes
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
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
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:6 /11:15 /12:61
/13:138 /14:311 /15:554 /16:8105 /17:2265 /18:3898
/19:9726 /20:10373 /21:7890 /22:10923 /23:12646 /24:81301
/25:238 /26:208 /27:112 /28:60 /29:47 /30:109
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 731 746 Covad Communications
6197 660 811 BellSouth Network Solutions,
2386 611 845 AT&T Data Communications Serv
7018 572 1422 AT&T WorldNet Services
27364 395 411 Armstrong Cable Services
702 382 630 UUNET - Commercial IP service
1239 375 936 Sprint
9583 372 535 Satyam Infoway Ltd.,
4766 367 547 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 341 1247 UUNET Technologies, Inc.
6198 317 442 BellSouth Network Solutions,
20115 309 599 Charter Communications
6467 296 399 E.Spire Communications, Inc.
6517 278 302 Yipes Communications, Inc.
9929 277 346 China Netcom Corp.
13609 266 309 Choice One Communications Inc
21502 266 269 NUMERICABLE is a cabled netwo
4323 250 792 Time Warner Telecom
3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1423 13:1 15:5 16:2
17:3 18:1 20:5 24:745 32:68 33:2
38:79 40:54 44:3 47:2 52:3 55:1
56:3 57:20 60:4 61:597 62:501 63:1842
64:2417 65:2072 66:2474 67:439 68:561 69:739
70:94 80:523 81:552 82:315 83:188 84:42
128:128 129:165 130:86 131:183 132:34 134:189
135:17 136:187 137:55 138:183 139:38 140:182
141:108 142:122 143:69 144:160 145:42 146:292
147:94 148:327 149:110 150:92 151:65 152:148
153:68 154:2 155:125 156:57 157:66 158:129
159:163 160:62 161:73 162:375 163:79 164:214
165:159 166:120 167:222 168:358 169:120 170:285
171:9 192:5580 193:2911 194:2154 195:1495 196:649
198:3666 199:3309 200:3800 201:20 202:4911 203:5768
204:3459 205:2100 206:2271 207:2566 208:2129 209:2986
210:1497 211:637 212:1121 213:1192 214:130 215:30
216:3649 217:1054 218:183 219:103 220:267 221:65
222:44
End of report
