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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 05 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 185618
Prefixes after maximum aggregation: 102766
Unique aggregates announced to Internet: 89835
Total ASes present in the Internet Routing Table: 21885
Origin-only ASes present in the Internet Routing Table: 19026
Origin ASes announcing only one prefix: 9055
Transit ASes present in the Internet Routing Table: 2859
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1501208416
Equivalent to 89 /8s, 122 /16s and 159 /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: 91124
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39042
Total APNIC prefixes after maximum aggregation: 16352
Prefixes being announced from the APNIC address blocks: 36751
Unique aggregates announced from the APNIC address blocks: 17293
APNIC Region origin ASes present in the Internet Routing Table: 2532
APNIC Region origin ASes announcing only one prefix: 719
APNIC Region transit ASes present in the Internet Routing Table: 388
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 220673504
Equivalent to 13 /8s, 39 /16s and 53 /24s
Percentage of available APNIC address space announced: 69.0
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: 96973
Total ARIN prefixes after maximum aggregation: 57264
Prefixes being announced from the ARIN address blocks: 76051
Unique aggregates announced from the ARIN address blocks: 29070
ARIN Region origin ASes present in the Internet Routing Table: 10621
ARIN Region origin ASes announcing only one prefix: 3970
ARIN Region transit ASes present in the Internet Routing Table: 975
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293582080
Equivalent to 17 /8s, 127 /16s and 181 /24s
Percentage of available ARIN address space announced: 72.9
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: 36837
Total RIPE prefixes after maximum aggregation: 24675
Prefixes being announced from the RIPE address blocks: 33880
Unique aggregates announced from the RIPE address blocks: 22880
RIPE Region origin ASes present in the Internet Routing Table: 7834
RIPE Region origin ASes announcing only one prefix: 4098
RIPE Region transit ASes present in the Internet Routing Table: 1304
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 243218048
Equivalent to 14 /8s, 127 /16s and 54 /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: 10652
Total LACNIC prefixes after maximum aggregation: 3585
Prefixes being announced from the LACNIC address blocks: 8815
Unique aggregates announced from the LACNIC address blocks: 5255
LACNIC Region origin ASes present in the Internet Routing Table: 680
LACNIC Region origin ASes announcing only one prefix: 222
LACNIC Region transit ASes present in the Internet Routing Table: 126
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 26238720
Equivalent to 1 /8s, 144 /16s and 95 /24s
Percentage of available LACNIC address space announced: 39.1
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: 2105
Total AfriNIC prefixes after maximum aggregation: 890
Prefixes being announced from the AfriNIC address blocks: 1436
Unique aggregates announced from the AfriNIC address blocks: 916
AfriNIC Region origin ASes present in the Internet Routing Table: 152
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4033280
Equivalent to 0 /8s, 61 /16s and 139 /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 1012 6919 214 CHINANET-BACKBONE
4755 891 259 69 Videsh Sanchar Nigam Ltd. Aut
9583 875 109 16 Sify Limited
4766 678 3923 304 Korea Telecom (KIX)
1221 623 1556 477 Telstra Pty Ltd
9498 564 212 72 BHARTI BT INTERNET LTD.
7545 531 108 71 TPG Internet Pty Ltd
17488 502 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 416 94 86 Primus Telecommunications
4802 376 77 171 Wantree Development
17974 340 118 25 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
18101 326 68 23 Reliance Infocom Ltd Internet
17557 321 27 165 Pakistan Telecom
17849 318 20 104 Telecommunications Technology
9929 316 218 54 China Netcom Corp.
7474 307 211 233 SingTel Optus Pty Ltd
9837 269 77 165 Powertel Ltd
9800 267 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1505 6257 964 AT&T WorldNet Services
4323 1253 715 249 Time Warner Telecom
721 1010 21962 307 DLA Systems Automation Center
6197 1008 614 476 BellSouth Network Solutions,
174 955 5783 902 Cogent Communications
701 939 8048 774 UUNET Technologies, Inc.
18566 925 272 8 Covad Communications
2386 870 521 663 AT&T Data Communications Serv
1239 854 2804 607 Sprint
19029 781 151 109 New Edge Networks
209 708 3613 552 Qwest
20115 673 591 362 Charter Communications
19262 667 1968 156 Verizon Global Networks
22773 644 1484 41 Cox Communications, Inc.
11492 627 86 20 Cable One
7011 623 213 404 Citizens Utilities
6198 586 526 234 BellSouth Network Solutions,
852 584 1089 387 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 546 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 585 1951 458 UUNET - Commercial IP service
3301 308 1071 292 TeliaNet Sweden
3352 307 1564 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 232 488 222 Song Networks
6746 231 89 205 Dynamic Network Technologies,
8708 215 275 200 Romania Data Systems S.A.
8551 201 197 27 Bezeq International
24863 200 40 9 LINKdotNET AS number
1257 198 711 173 SWIPnet Swedish IP Network
3269 197 2086 76 TELECOM ITALIA
3215 191 1598 89 France Telecom Transpac
8866 175 37 15 Bulgarian Telecommunication C
9121 174 931 26 TTnet Autonomous System
786 171 1778 171 The JANET IP Service
5400 168 329 137 BT Ignite European Backbone
6830 167 765 35 UPC Distribution Services
5515 161 839 120 Sonera Solution Autonomous Sy
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 595 1051 225 UniNet S.A. de C.V.
22047 386 142 10 VTR PUNTO NET S.A.
11172 319 110 82 Servicios Alestra S.A de C.V
16814 280 18 7 NSS, S.A.
14117 185 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 128 12 9 Telecommunications Services o
19169 123 8 32 Telconet
21826 123 16 20 INTERCABLE
6503 122 149 75 AVANTEL, S.A.
14259 113 10 12 GTD Internet S.A.
6505 106 88 78 Global One Communicaoes Ltda
23216 101 21 8 RAMtelecom Telecomunicaciones
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
4270 94 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 277 803 232 The Internet Solution
8452 165 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
15475 129 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 57 16 2 Noor Advanced Technologies AS
12455 45 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
21280 20 5 5 Swift Global Kenya Ltd.Is an
2561 19 6 2 Egyptian Universities Network
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1253 1004 Time Warner Telecom
18566 925 917 Covad Communications
9583 875 859 Sify Limited
4755 891 822 Videsh Sanchar Nigam Ltd. Aut
4134 1012 798 CHINANET-BACKBONE
721 1010 703 DLA Systems Automation Center
19029 781 672 New Edge Networks
11492 627 607 Cable One
22773 644 603 Cox Communications, Inc.
6197 1008 532 BellSouth Network Solutions,
19262 667 511 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 502 CenturyTel Internet Holdings,
17488 502 495 Hathway IP Over Cable Interne
9498 564 492 BHARTI BT INTERNET LTD.
855 546 482 Canadian Research Network
7545 531 460 TPG Internet Pty Ltd
7757 474 455 AT&T Broadband
3602 539 430 Sprint Canada, Inc.
17676 484 377 Softbank BB Corp.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
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
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 /8:18 /9:9 /10:8 /11:27 /12:88
/13:199 /14:357 /15:692 /16:8771 /17:3158 /18:5206
/19:11479 /20:12907 /21:11143 /22:14264 /23:15406 /24:100872
/25:347 /26:248 /27:220 /28:64 /29:68 /30:34
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 908 925 Covad Communications
7018 798 1505 AT&T WorldNet Services
6197 797 1008 BellSouth Network Solutions,
19029 713 781 New Edge Networks
9583 695 875 Sify Limited
11492 618 627 Cable One
4323 605 1253 Time Warner Telecom
2386 595 870 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 535 623 Citizens Utilities
4766 487 678 Korea Telecom (KIX)
7757 456 474 AT&T Broadband
6198 441 586 BellSouth Network Solutions,
855 420 546 Canadian Research Network
5668 412 532 CenturyTel Internet Holdings,
1239 379 854 Sprint
702 366 585 UUNET - Commercial IP service
15270 365 395 PaeTec.net -a division of Pae
6517 349 378 Yipes Communications, Inc.
22773 337 644 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:40 12:1622 13:1 15:11 16:3
17:3 18:4 20:43 24:882 25:1 30:2
32:67 38:209 40:54 44:3 45:3 47:6
52:4 55:1 56:3 57:33 58:155 59:192
60:180 61:840 62:823 63:1915 64:3127 65:2229
66:3094 67:615 68:683 69:1436 70:321 71:75
72:666 73:23 74:28 80:761 81:613 82:550
83:373 84:375 85:509 86:339 87:286 88:50
89:115 124:202 125:287 128:160 129:177 130:107
131:317 132:33 133:8 134:150 135:47 136:177
137:69 138:199 139:68 140:467 141:134 142:393
143:160 144:230 145:40 146:322 147:132 148:339
149:190 150:114 151:80 152:65 153:107 154:6
155:196 156:99 157:122 158:165 159:171 160:85
161:69 162:252 163:146 164:179 165:183 166:166
167:241 168:478 169:133 170:329 171:12 172:1
183:1 190:51 192:5774 193:3402 194:2559 195:1787
196:836 198:3876 199:3264 200:4258 201:706 202:6541
203:6911 204:3951 205:2090 206:2425 207:2928 208:2039
209:3717 210:1920 211:737 212:1244 213:1445 214:336
215:41 216:4091 217:1176 218:240 219:176 220:655
221:355 222:162
End of report
