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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 10 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 185896
Prefixes after maximum aggregation: 102962
Unique aggregates announced to Internet: 90979
Total ASes present in the Internet Routing Table: 21901
Origin-only ASes present in the Internet Routing Table: 19028
Origin ASes announcing only one prefix: 9063
Transit ASes present in the Internet Routing Table: 2873
Transit-only ASes present in the Internet Routing Table: 68
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 24
Prefixes from unregistered ASNs in the Routing Table: 11
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1502425184
Equivalent to 89 /8s, 141 /16s and 48 /24s
Percentage of available address space announced: 40.5
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 91440
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39017
Total APNIC prefixes after maximum aggregation: 16357
Prefixes being announced from the APNIC address blocks: 36711
Unique aggregates announced from the APNIC address blocks: 18079
APNIC Region origin ASes present in the Internet Routing Table: 2536
APNIC Region origin ASes announcing only one prefix: 717
APNIC Region transit ASes present in the Internet Routing Table: 387
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 221253344
Equivalent to 13 /8s, 48 /16s and 14 /24s
Percentage of available APNIC address space announced: 69.2
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911
APNIC Address Blocks 58/7, 60/7, 121/8, 122/7, 124/7, 126/8, 202/7
210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 97034
Total ARIN prefixes after maximum aggregation: 57370
Prefixes being announced from the ARIN address blocks: 76103
Unique aggregates announced from the ARIN address blocks: 29151
ARIN Region origin ASes present in the Internet Routing Table: 10622
ARIN Region origin ASes announcing only one prefix: 3978
ARIN Region transit ASes present in the Internet Routing Table: 979
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293864960
Equivalent to 17 /8s, 132 /16s and 6 /24s
Percentage of available ARIN address space announced: 73.0
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 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, 29696-30719, 31744-33791
35840-36863
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8,
198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 36962
Total RIPE prefixes after maximum aggregation: 24738
Prefixes being announced from the RIPE address blocks: 34005
Unique aggregates announced from the RIPE address blocks: 23076
RIPE Region origin ASes present in the Internet Routing Table: 7846
RIPE Region origin ASes announcing only one prefix: 4098
RIPE Region transit ASes present in the Internet Routing Table: 1311
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 243334272
Equivalent to 14 /8s, 128 /16s and 252 /24s
Percentage of available RIPE address space announced: 72.5
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 10748
Total LACNIC prefixes after maximum aggregation: 3602
Prefixes being announced from the LACNIC address blocks: 8905
Unique aggregates announced from the LACNIC address blocks: 5301
LACNIC Region origin ASes present in the Internet Routing Table: 682
LACNIC Region origin ASes announcing only one prefix: 224
LACNIC Region transit ASes present in the Internet Routing Table: 127
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 26330880
Equivalent to 1 /8s, 145 /16s and 199 /24s
Percentage of available LACNIC address space announced: 39.2
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 2121
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1460
Unique aggregates announced from the AfriNIC address blocks: 940
AfriNIC Region origin ASes present in the Internet Routing Table: 151
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4031488
Equivalent to 0 /8s, 61 /16s and 132 /24s
Percentage of available AfriNIC address space announced: 12.0
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 982 6927 210 CHINANET-BACKBONE
4755 895 259 69 Videsh Sanchar Nigam Ltd. Aut
9583 874 109 16 Sify Limited
4766 680 3924 305 Korea Telecom (KIX)
1221 622 1557 476 Telstra Pty Ltd
9498 565 212 72 BHARTI BT INTERNET LTD.
7545 529 108 71 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 421 95 82 Primus Telecommunications
4802 378 77 172 Wantree Development
18101 337 69 25 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17974 325 118 25 PT TELEKOMUNIKASI INDONESIA
17849 323 21 106 Telecommunications Technology
17557 322 27 165 Pakistan Telecom
9929 317 220 55 China Netcom Corp.
7474 299 211 230 SingTel Optus Pty Ltd
9800 268 410 67 CHINA UNICOM
9837 267 77 163 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1504 6257 963 AT&T WorldNet Services
4323 1254 716 250 Time Warner Telecom
721 1013 21961 306 DLA Systems Automation Center
6197 1010 614 476 BellSouth Network Solutions,
174 958 5783 904 Cogent Communications
701 934 8047 774 UUNET Technologies, Inc.
18566 928 272 8 Covad Communications
2386 874 537 666 AT&T Data Communications Serv
1239 851 2805 605 Sprint
19029 781 151 109 New Edge Networks
209 715 3616 560 Qwest
20115 674 591 362 Charter Communications
19262 669 1977 156 Verizon Global Networks
22773 643 1484 41 Cox Communications, Inc.
11492 627 86 20 Cable One
7011 623 213 404 Citizens Utilities
6198 588 530 236 BellSouth Network Solutions,
852 586 1089 388 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 552 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 580 1951 453 UUNET - Commercial IP service
3301 308 1071 292 TeliaNet Sweden
3352 308 1580 31 Ibernet, Internet Access Netw
8220 289 473 268 COLT Telecommunications
3320 282 3476 234 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 231 488 221 Song Networks
6746 227 89 201 Dynamic Network Technologies,
8708 214 275 200 Romania Data Systems S.A.
8551 202 198 24 Bezeq International
24863 201 40 9 LINKdotNET AS number
1257 198 711 173 SWIPnet Swedish IP Network
3269 196 2086 76 TELECOM ITALIA
3215 191 1598 89 France Telecom Transpac
8866 175 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 169 329 138 BT Ignite European Backbone
6830 167 765 35 UPC Distribution Services
30890 161 14 60 SC Kappa Invexim SRL
3300 160 172 91 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 696 1067 227 UniNet S.A. de C.V.
22047 383 142 10 VTR PUNTO NET S.A.
11172 321 110 84 Servicios Alestra S.A de C.V
16814 276 18 7 NSS, S.A.
14117 189 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 159 75 20 Telecom Argentina Stet-France
6147 154 126 22 Telefonica Del Peru
11556 132 80 4 Cable-Wireless Panama
5639 129 12 9 Telecommunications Services o
19169 124 8 30 Telconet
21826 124 16 21 INTERCABLE
6503 122 149 75 AVANTEL, S.A.
14259 114 10 12 GTD Internet S.A.
18822 114 8 10 TELEFONICA MANQUEHUE
6505 106 88 78 Global One Communicaoes Ltda
23216 102 21 9 RAMtelecom Telecomunicaciones
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
14522 95 13 6 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 803 232 The Internet Solution
8452 166 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
15475 132 84 4 Nile Online
2018 124 314 105 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 114 50 7 RAYA Telecom - Egypt
2905 74 155 67 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
12455 43 6 3 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 21 AS Number for Telecom Algeria
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
8346 20 13 17 SONATEL-AS Autonomous System
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1254 1004 Time Warner Telecom
18566 928 920 Covad Communications
9583 874 858 Sify Limited
4755 895 826 Videsh Sanchar Nigam Ltd. Aut
4134 982 772 CHINANET-BACKBONE
721 1013 707 DLA Systems Automation Center
19029 781 672 New Edge Networks
11492 627 607 Cable One
22773 643 602 Cox Communications, Inc.
6197 1010 534 BellSouth Network Solutions,
19262 669 513 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 502 CenturyTel Internet Holdings,
17488 501 494 Hathway IP Over Cable Interne
9498 565 493 BHARTI BT INTERNET LTD.
855 552 488 Canadian Research Network
8151 696 469 UniNet S.A. de C.V.
7545 529 458 TPG Internet Pty Ltd
7757 476 457 AT&T Broadband
3602 538 429 Sprint Canada, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
43144 UNALLOCATED 12.149.157.0/24 7018 AT&T WorldNet Servic
64501 RESERVED 68.142.125.0/24 22822 Limelight Networks,
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
65005 PRIVATE 159.153.148.0/22 24989 IX Europe Frankfurt
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
24808 UNALLOCATED 217.78.74.0/23 12491 IPPlanet
24808 UNALLOCATED 217.78.76.0/23 12491 IPPlanet
65412 PRIVATE 221.123.128.0/20 24405 Beijing CJWX Communi
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
183.206.196.0/24 2188 FR-RENATER-ASTER
192.44.0.0/24 5501 Fraunhofer Gesellschaft
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.172.0.0/19 721 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 /8:17 /9:9 /10:8 /11:26 /12:88
/13:200 /14:357 /15:692 /16:8777 /17:3167 /18:5198
/19:11482 /20:12911 /21:11166 /22:14350 /23:15438 /24:100983
/25:367 /26:251 /27:218 /28:63 /29:62 /30:34
/31:0 /32:32
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 911 928 Covad Communications
6197 799 1010 BellSouth Network Solutions,
7018 799 1504 AT&T WorldNet Services
19029 713 781 New Edge Networks
9583 695 874 Sify Limited
11492 618 627 Cable One
4323 604 1254 Time Warner Telecom
2386 594 874 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 535 623 Citizens Utilities
4766 489 680 Korea Telecom (KIX)
7757 458 476 AT&T Broadband
6198 441 588 BellSouth Network Solutions,
855 426 552 Canadian Research Network
5668 412 532 CenturyTel Internet Holdings,
1239 377 851 Sprint
15270 368 399 PaeTec.net -a division of Pae
702 361 580 UUNET - Commercial IP service
6517 350 378 Yipes Communications, Inc.
8151 341 696 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1621 13:1 15:12 16:3
17:3 18:4 20:43 24:884 25:1 30:2
32:68 38:210 40:54 44:3 45:5 47:6
52:4 55:1 56:3 57:33 58:149 59:195
60:178 61:841 62:831 63:1903 64:3126 65:2226
66:3071 67:619 68:686 69:1465 70:322 71:75
72:672 73:23 74:29 80:755 81:611 82:559
83:377 84:379 85:514 86:342 87:306 88:56
89:126 124:212 125:300 128:169 129:177 130:107
131:317 132:32 133:8 134:150 135:47 136:177
137:71 138:199 139:68 140:468 141:134 142:394
143:161 144:229 145:41 146:322 147:133 148:334
149:189 150:114 151:80 152:64 153:106 154:6
155:194 156:100 157:125 158:164 159:169 160:85
161:69 162:251 163:145 164:179 165:183 166:165
167:242 168:479 169:134 170:327 171:12 172:1
183:1 190:51 192:5760 193:3395 194:2573 195:1804
196:860 198:3877 199:3259 200:4250 201:814 202:6530
203:6899 204:3923 205:2103 206:2421 207:2931 208:2031
209:3725 210:1908 211:697 212:1231 213:1457 214:341
215:41 216:4094 217:1164 218:242 219:170 220:648
221:353 222:153
End of report
