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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 03 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 185431
Prefixes after maximum aggregation: 102753
Unique aggregates announced to Internet: 90426
Total ASes present in the Internet Routing Table: 21862
Origin-only ASes present in the Internet Routing Table: 19001
Origin ASes announcing only one prefix: 9040
Transit ASes present in the Internet Routing Table: 2861
Transit-only ASes present in the Internet Routing Table: 67
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
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: 12
Number of addresses announced to Internet: 1499464288
Equivalent to 89 /8s, 96 /16s and 2 /24s
Percentage of available address space announced: 40.5
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 91040
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38885
Total APNIC prefixes after maximum aggregation: 16350
Prefixes being announced from the APNIC address blocks: 36592
Unique aggregates announced from the APNIC address blocks: 18010
APNIC Region origin ASes present in the Internet Routing Table: 2528
APNIC Region origin ASes announcing only one prefix: 720
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: 15
Number of APNIC addresses announced to Internet: 219720928
Equivalent to 13 /8s, 24 /16s and 172 /24s
Percentage of available APNIC address space announced: 68.7
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: 97054
Total ARIN prefixes after maximum aggregation: 57281
Prefixes being announced from the ARIN address blocks: 76149
Unique aggregates announced from the ARIN address blocks: 29014
ARIN Region origin ASes present in the Internet Routing Table: 10609
ARIN Region origin ASes announcing only one prefix: 3962
ARIN Region transit ASes present in the Internet Routing Table: 978
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293514752
Equivalent to 17 /8s, 126 /16s and 174 /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: 36821
Total RIPE prefixes after maximum aggregation: 24653
Prefixes being announced from the RIPE address blocks: 33873
Unique aggregates announced from the RIPE address blocks: 22850
RIPE Region origin ASes present in the Internet Routing Table: 7829
RIPE Region origin ASes announcing only one prefix: 4094
RIPE Region transit ASes present in the Internet Routing Table: 1305
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 243093376
Equivalent to 14 /8s, 125 /16s and 79 /24s
Percentage of available RIPE address space announced: 72.4
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: 10559
Total LACNIC prefixes after maximum aggregation: 3581
Prefixes being announced from the LACNIC address blocks: 8723
Unique aggregates announced from the LACNIC address blocks: 5240
LACNIC Region origin ASes present in the Internet Routing Table: 680
LACNIC Region origin ASes announcing only one prefix: 219
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 26146816
Equivalent to 1 /8s, 142 /16s and 248 /24s
Percentage of available LACNIC address space announced: 39.0
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: 2103
Total AfriNIC prefixes after maximum aggregation: 888
Prefixes being announced from the AfriNIC address blocks: 1428
Unique aggregates announced from the AfriNIC address blocks: 911
AfriNIC Region origin ASes present in the Internet Routing Table: 151
AfriNIC Region origin ASes announcing only one prefix: 45
AfriNIC Region transit ASes present in the Internet Routing Table: 23
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 3966720
Equivalent to 0 /8s, 60 /16s and 135 /24s
Percentage of available AfriNIC address space announced: 11.8
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 890 258 69 Videsh Sanchar Nigam Ltd. Aut
9583 873 109 16 Sify Limited
4766 679 3924 304 Korea Telecom (KIX)
1221 623 1556 477 Telstra Pty Ltd
9498 562 212 72 BHARTI BT INTERNET LTD.
7545 531 108 71 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 416 95 82 Primus Telecommunications
4802 376 77 171 Wantree Development
2907 336 1749 312 SINET Japan
17974 336 90 38 PT TELEKOMUNIKASI INDONESIA
18101 325 68 23 Reliance Infocom Ltd Internet
17557 320 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
4780 281 226 16 Digital United Inc.
9837 269 77 165 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1511 6264 968 AT&T WorldNet Services
4323 1251 715 249 Time Warner Telecom
721 1009 21961 305 DLA Systems Automation Center
6197 1007 615 470 BellSouth Network Solutions,
174 955 5783 902 Cogent Communications
701 937 8048 773 UUNET Technologies, Inc.
18566 925 272 8 Covad Communications
2386 870 521 663 AT&T Data Communications Serv
1239 853 2804 603 Sprint
19029 786 152 112 New Edge Networks
209 700 3607 543 Qwest
20115 673 591 362 Charter Communications
19262 665 1968 156 Verizon Global Networks
22773 643 1480 40 Cox Communications, Inc.
11492 627 86 20 Cable One
7011 620 213 401 Citizens Utilities
852 585 1089 389 Telus Advanced Communications
6198 583 518 233 BellSouth Network Solutions,
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
702 586 1951 459 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 3478 234 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 231 488 221 Song Networks
6746 230 89 204 Dynamic Network Technologies,
8708 215 275 200 Romania Data Systems S.A.
8551 203 198 24 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
9121 174 931 26 TTnet Autonomous System
8866 172 37 15 Bulgarian Telecommunication C
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 594 1035 226 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.
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 124 8 30 Telconet
21826 123 16 20 INTERCABLE
6503 122 149 75 AVANTEL, S.A.
10481 121 48 8 Prima S.A.
6505 106 88 78 Global One Communicaoes Ltda
23216 100 20 7 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
14522 94 13 5 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 167 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
15475 129 84 4 Nile Online
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 111 50 7 RAYA Telecom - Egypt
2905 74 155 67 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
12455 46 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 1251 1002 Time Warner Telecom
18566 925 917 Covad Communications
9583 873 857 Sify Limited
4755 890 821 Videsh Sanchar Nigam Ltd. Aut
4134 1012 798 CHINANET-BACKBONE
721 1009 704 DLA Systems Automation Center
19029 786 674 New Edge Networks
11492 627 607 Cable One
22773 643 603 Cox Communications, Inc.
6197 1007 537 BellSouth Network Solutions,
19262 665 509 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 502 CenturyTel Internet Holdings,
17488 501 494 Hathway IP Over Cable Interne
9498 562 490 BHARTI BT INTERNET LTD.
855 546 482 Canadian Research Network
7545 531 460 TPG Internet Pty Ltd
7757 473 454 AT&T Broadband
3602 540 431 Sprint Canada, Inc.
812 438 410 Rogers WAVE
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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 /11:27 /12:88
/13:199 /14:357 /15:691 /16:8762 /17:3156 /18:5174
/19:11464 /20:12911 /21:11220 /22:14275 /23:15406 /24:100666
/25:340 /26:248 /27:215 /28:63 /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 803 1511 AT&T WorldNet Services
6197 796 1007 BellSouth Network Solutions,
19029 713 786 New Edge Networks
9583 694 873 Sify Limited
11492 618 627 Cable One
4323 603 1251 Time Warner Telecom
2386 595 870 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 532 620 Citizens Utilities
4766 488 679 Korea Telecom (KIX)
7757 455 473 AT&T Broadband
6198 440 583 BellSouth Network Solutions,
855 420 546 Canadian Research Network
5668 412 532 CenturyTel Internet Holdings,
1239 378 853 Sprint
702 367 586 UUNET - Commercial IP service
15270 364 394 PaeTec.net -a division of Pae
6517 349 378 Yipes Communications, Inc.
22773 337 643 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1622 13:1 15:11 16:3
17:3 18:4 20:43 24:880 25:1 30:2
32:67 38:208 40:54 44:3 45:2 47:6
52:4 55:1 56:3 57:33 58:132 59:191
60:179 61:800 62:820 63:1919 64:3118 65:2231
66:3093 67:617 68:699 69:1433 70:316 71:82
72:657 73:23 74:28 80:760 81:616 82:548
83:376 84:374 85:506 86:338 87:274 88:51
89:112 124:200 125:279 128:158 129:177 130:106
131:319 132:33 133:8 134:150 135:47 136:177
137:69 138:199 139:74 140:466 141:134 142:393
143:160 144:229 145:40 146:321 147:133 148:338
149:190 150:113 151:80 152:65 153:107 154:6
155:196 156:99 157:120 158:165 159:171 160:86
161:69 162:252 163:145 164:179 165:182 166:166
167:242 168:480 169:134 170:329 171:12 172:1
183:1 190:51 192:5769 193:3404 194:2558 195:1794
196:828 198:3874 199:3260 200:4256 201:672 202:6546
203:6903 204:3925 205:2098 206:2423 207:2928 208:2040
209:3716 210:1927 211:704 212:1237 213:1446 214:333
215:42 216:4084 217:1175 218:240 219:179 220:655
221:354 222:160
End of report
