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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 25 Oct, 2004
Analysis Summary
----------------
BGP routing table entries examined: 149060
Prefixes after maximum aggregation: 88253
Unique aggregates announced to Internet: 71452
Total ASes present in the Internet Routing Table: 18301
Origin-only ASes present in the Internet Routing Table: 15898
Origin ASes announcing only one prefix: 7458
Transit ASes present in the Internet Routing Table: 2403
Transit-only ASes present in the Internet Routing Table: 75
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 27
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 15
Number of addresses announced to Internet: 1345257324
Equivalent to 80 /8s, 46 /16s and 255 /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: 68744
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29033
Total APNIC prefixes after maximum aggregation: 14327
Prefixes being announced from the APNIC address blocks: 27167
Unique aggregates announced from the APNIC address blocks: 14259
APNIC Region origin ASes present in the Internet Routing Table: 2151
APNIC Region origin ASes announcing only one prefix: 644
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 165206656
Equivalent to 9 /8s, 216 /16s and 218 /24s
Percentage of available APNIC address space announced: 75.4
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: 84494
Total ARIN prefixes after maximum aggregation: 51518
Prefixes being announced from the ARIN address blocks: 64621
Unique aggregates announced from the ARIN address blocks: 23237
ARIN Region origin ASes present in the Internet Routing Table: 9636
ARIN Region origin ASes announcing only one prefix: 3472
ARIN Region transit ASes present in the Internet Routing Table: 934
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 234077440
Equivalent to 13 /8s, 243 /16s and 189 /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: 27826
Total RIPE prefixes after maximum aggregation: 19362
Prefixes being announced from the RIPE address blocks: 24645
Unique aggregates announced from the RIPE address blocks: 16156
RIPE Region origin ASes present in the Internet Routing Table: 5952
RIPE Region origin ASes announcing only one prefix: 3208
RIPE Region transit ASes present in the Internet Routing Table: 1019
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 174303104
Equivalent to 10 /8s, 99 /16s and 167 /24s
Percentage of available RIPE address space announced: 61.1
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: 6502
Total LACNIC prefixes after maximum aggregation: 2355
Prefixes being announced from the LACNIC address blocks: 6357
Unique aggregates announced from the LACNIC address blocks: 3804
LACNIC Region origin ASes present in the Internet Routing Table: 397
LACNIC Region origin ASes announcing only one prefix: 114
LACNIC Region transit ASes present in the Internet Routing Table: 80
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 16348672
Equivalent to 0 /8s, 249 /16s and 118 /24s
Percentage of available LACNIC address space announced: 48.7
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1200
Total AfriNIC prefixes after maximum aggregation: 691
Prefixes being announced from the AfriNIC address blocks: 844
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: 4.5
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 2070528
Equivalent to 0 /8s, 31 /16s and 152 /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 856 4407 163 Data Communications Bureau
1221 804 1184 577 Telstra Pty Ltd
4766 542 3407 266 Korea Internet Exchange for "
9583 536 41 104 Satyam Infoway Ltd.,
4755 374 133 53 Videsh Sanchar Nigam Ltd. Aut
17676 369 5516 54 XTAGE CORPORATION
9443 359 69 79 Primus Telecommunications
2907 354 1857 328 SINET Japan
9929 345 161 33 China Netcom Corp.
17557 319 23 157 Pakistan Telecom
703 316 346 245 UUNET
2764 282 272 230 connect.com.au pty ltd
7474 263 268 197 Optus Communications Pty Ltd
9942 236 73 127 COMindico Australia
4802 234 28 142 Wantree Development
9498 231 50 49 BHARTI BT INTERNET LTD.
4804 229 165 55 Microplex PTY LTD
9800 224 372 67 CHINA UNICOM
7563 217 48 162 Korea Internet Infrastructure
4780 212 225 26 Digital United Inc.
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1428 6696 992 AT&T WorldNet Services
701 1242 8434 892 UUNET Technologies, Inc.
1239 935 2883 621 Sprint
2386 841 530 605 AT&T Data Communications Serv
6197 811 378 349 BellSouth Network Solutions,
4323 791 637 215 Time Warner Telecom
18566 746 208 6 Covad Communications
721 721 21028 297 DLA Systems Automation Center
3356 642 10956 443 Level 3 Communications, LLC
209 640 3457 504 Qwest
20115 566 427 303 Charter Communications
3561 558 2417 422 Cable & Wireless USA
852 509 1126 397 Telus Advanced Communications
7843 498 709 98 Adelphia Corp.
7132 446 8272 375 SBC Internet Services
705 435 163 274 UUNET Technologies, Inc.
6198 432 347 208 BellSouth Network Solutions,
6478 415 728 93 AT&T Worldnet Services
27364 412 36 19 Armstrong Cable Services
22909 406 841 56 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2009 519 UUNET - Commercial IP service
3320 301 2486 238 Deutsche Telekom AG
8220 281 461 267 COLT Internet - International
3301 279 1100 269 TeliaNet Sweden
21502 261 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 195 842 143 Sonera Solution Autonomous Sy
786 175 1794 175 The JANET IP Service
6746 159 30 129 Dynamic Network Technologies,
719 157 288 102 LANLINK autonomous system
3215 157 940 78 France Telecom Transpac
8866 155 20 7 Bulgarian Telecommunication C
3269 149 1259 67 TELECOM ITALIA
5400 149 208 120 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 348 138 68 ImpSat
8151 304 438 132 UniNet S.A. de C.V.
16814 212 13 7 NSS, S.A.
11172 208 100 55 Servicios Alestra S.A de C.V
6147 185 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 98 6 4 Telefonica del Sur S.A.
11556 96 48 2 Cable-Wireless Panama
6535 85 7 19 Chilesat Servicios Empresari
11311 84 8 24 Sinectis S.A.
10481 80 32 7 Prima S.A.
14420 80 5 33 ANDINATEL S.A.
4270 78 18 9 Red de Interconexion Universi
14522 77 5 9 SatNet S.A.
15311 77 23 37 Telefonica Empresas
5639 75 8 8 Telecommunications Services o
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 56 16 1 Noor Advanced Technologies AS
9129 34 3 4 UUNET Kenya
24835 34 34 7 RAYA Telecom - Egypt
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
15706 15 4 2 Sudatel Internet Exchange Aut
21280 14 2 3 Swift Global Kenya Ltd.Is an
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
2609 12 26 4 Tunisia BackBone AS
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 746 740 Covad Communications
4134 856 693 Data Communications Bureau
4323 791 576 Time Warner Telecom
6197 811 462 BellSouth Network Solutions,
9583 536 432 Satyam Infoway Ltd.,
721 721 424 DLA Systems Automation Center
7843 498 400 Adelphia Corp.
27364 412 393 Armstrong Cable Services
5668 403 385 Century Telephone
22773 393 375 Cox Communications, Inc. Atla
6467 399 368 E.Spire Communications, Inc.
701 1242 350 UUNET Technologies, Inc.
22909 406 350 Comcast Cable Corporation
6478 415 322 AT&T Worldnet Services
4755 374 321 Videsh Sanchar Nigam Ltd. Aut
17676 369 315 XTAGE CORPORATION
1239 935 314 Sprint
9929 345 312 China Netcom Corp.
4355 390 291 EarthLink, Inc.
9443 359 280 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64512 PRIVATE 62.58.1.0/27 13127 AS for the Trans-Eur
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
/13:137 /14:311 /15:553 /16:8101 /17:2264 /18:3895
/19:9727 /20:10373 /21:7921 /22:10948 /23:12661 /24:81225
/25:237 /26:223 /27:119 /28:63 /29:50 /30:113
/31:0 /32:35
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 608 841 AT&T Data Communications Serv
7018 575 1428 AT&T WorldNet Services
27364 396 412 Armstrong Cable Services
702 380 628 UUNET - Commercial IP service
1239 377 935 Sprint
9583 374 536 Satyam Infoway Ltd.,
4766 362 542 Korea Internet Exchange for "
5668 350 403 Century Telephone
701 343 1242 UUNET Technologies, Inc.
6198 316 432 BellSouth Network Solutions,
6467 296 399 E.Spire Communications, Inc.
6517 279 303 Yipes Communications, Inc.
9929 276 345 China Netcom Corp.
20115 276 566 Charter Communications
13609 266 309 Choice One Communications Inc
21502 258 261 NUMERICABLE is a cabled netwo
4323 253 791 Time Warner Telecom
3320 246 301 Deutsche Telekom AG
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1434 13:1 15:5 16:2
17:3 20:6 24:745 32:72 33:2 38:80
40:54 44:3 47:2 52:3 55:1 56:3
57:20 59:1 60:3 61:595 62:494 63:1835
64:2430 65:2073 66:2464 67:440 68:536 69:753
70:31 80:516 81:546 82:309 83:188 84:46
128:121 129:164 130:83 131:183 132:33 134:186
135:19 136:184 137:55 138:184 139:41 140:194
141:108 142:123 143:69 144:159 145:42 146:295
147:94 148:327 149:110 150:94 151:65 152:152
153:68 154:2 155:128 156:58 157:66 158:131
159:163 160:61 161:70 162:373 163:78 164:214
165:158 166:119 167:221 168:339 169:121 170:294
171:9 192:5583 193:2912 194:2163 195:1502 196:600
198:3690 199:3300 200:3817 201:22 202:4903 203:5744
204:3455 205:2093 206:2250 207:2558 208:2129 209:2982
210:1523 211:672 212:1130 213:1191 214:129 215:30
216:3673 217:1045 218:180 219:104 220:269 221:65
222:43
End of report
