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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 07 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 185850
Prefixes after maximum aggregation: 102912
Unique aggregates announced to Internet: 90709
Total ASes present in the Internet Routing Table: 21904
Origin-only ASes present in the Internet Routing Table: 19033
Origin ASes announcing only one prefix: 9074
Transit ASes present in the Internet Routing Table: 2871
Transit-only ASes present in the Internet Routing Table: 69
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: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1504709760
Equivalent to 89 /8s, 176 /16s and 12 /24s
Percentage of available address space announced: 40.6
Percentage of allocated address space announced: 59.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 91324
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39004
Total APNIC prefixes after maximum aggregation: 16365
Prefixes being announced from the APNIC address blocks: 36702
Unique aggregates announced from the APNIC address blocks: 17898
APNIC Region origin ASes present in the Internet Routing Table: 2535
APNIC Region origin ASes announcing only one prefix: 721
APNIC Region transit ASes present in the Internet Routing Table: 386
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 223487456
Equivalent to 13 /8s, 82 /16s and 37 /24s
Percentage of available APNIC address space announced: 69.9
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: 97037
Total ARIN prefixes after maximum aggregation: 57326
Prefixes being announced from the ARIN address blocks: 76120
Unique aggregates announced from the ARIN address blocks: 29176
ARIN Region origin ASes present in the Internet Routing Table: 10625
ARIN Region origin ASes announcing only one prefix: 3979
ARIN Region transit ASes present in the Internet Routing Table: 983
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293838592
Equivalent to 17 /8s, 131 /16s and 159 /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: 36920
Total RIPE prefixes after maximum aggregation: 24736
Prefixes being announced from the RIPE address blocks: 33949
Unique aggregates announced from the RIPE address blocks: 22959
RIPE Region origin ASes present in the Internet Routing Table: 7846
RIPE Region origin ASes announcing only one prefix: 4105
RIPE Region transit ASes present in the Internet Routing Table: 1308
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 243306368
Equivalent to 14 /8s, 128 /16s and 143 /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: 10767
Total LACNIC prefixes after maximum aggregation: 3594
Prefixes being announced from the LACNIC address blocks: 8926
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: 26371872
Equivalent to 1 /8s, 146 /16s and 103 /24s
Percentage of available LACNIC address space announced: 39.3
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: 2112
Total AfriNIC prefixes after maximum aggregation: 891
Prefixes being announced from the AfriNIC address blocks: 1453
Unique aggregates announced from the AfriNIC address blocks: 935
AfriNIC Region origin ASes present in the Internet Routing Table: 150
AfriNIC Region origin ASes announcing only one prefix: 45
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: 15
Number of AfriNIC addresses announced to Internet: 4034304
Equivalent to 0 /8s, 61 /16s and 143 /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 1013 6927 210 CHINANET-BACKBONE
4755 895 259 69 Videsh Sanchar Nigam Ltd. Aut
9583 872 109 16 Sify Limited
4766 680 3924 305 Korea Telecom (KIX)
1221 621 1557 475 Telstra Pty Ltd
9498 565 212 72 BHARTI BT INTERNET LTD.
7545 538 108 71 TPG Internet Pty Ltd
17488 502 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 421 95 82 Primus Telecommunications
4802 377 77 171 Wantree Development
2907 336 1749 312 SINET Japan
18101 336 69 25 Reliance Infocom Ltd Internet
17557 322 27 165 Pakistan Telecom
17849 319 20 105 Telecommunications Technology
9929 317 220 55 China Netcom Corp.
7474 307 211 233 SingTel Optus Pty Ltd
17974 285 82 54 PT TELEKOMUNIKASI INDONESIA
9800 268 410 67 CHINA UNICOM
9837 268 77 164 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1507 6257 965 AT&T WorldNet Services
4323 1253 716 250 Time Warner Telecom
721 1009 21962 307 DLA Systems Automation Center
6197 1009 615 471 BellSouth Network Solutions,
174 955 5783 902 Cogent Communications
701 936 8048 776 UUNET Technologies, Inc.
18566 928 272 8 Covad Communications
2386 869 536 662 AT&T Data Communications Serv
1239 853 2804 606 Sprint
19029 780 151 109 New Edge Networks
209 714 3616 559 Qwest
20115 674 590 356 Charter Communications
19262 669 1977 156 Verizon Global Networks
22773 644 1484 41 Cox Communications, Inc.
11492 627 86 20 Cable One
7011 623 213 404 Citizens Utilities
6198 589 530 236 BellSouth Network Solutions,
852 582 1088 386 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
702 584 1951 457 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 231 488 221 Song Networks
6746 227 89 201 Dynamic Network Technologies,
8708 209 275 195 Romania Data Systems S.A.
8551 202 198 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
8866 175 37 15 Bulgarian Telecommunication C
786 171 1778 171 The JANET IP Service
5400 169 329 138 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
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 680 1079 225 UniNet S.A. de C.V.
22047 383 142 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 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 128 12 9 Telecommunications Services o
21826 124 16 21 INTERCABLE
6503 123 149 75 AVANTEL, S.A.
19169 123 8 32 Telconet
14259 114 10 12 GTD Internet S.A.
18822 114 8 10 TELEFONICA MANQUEHUE
6505 106 88 78 Global One Communicaoes Ltda
23216 101 21 8 RAMtelecom Telecomunicaciones
7315 96 6 3 Grupo Rey Moreno
25620 96 6 3 COTAS LTDA
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 166 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 44 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 1253 1003 Time Warner Telecom
18566 928 920 Covad Communications
9583 872 856 Sify Limited
4755 895 826 Videsh Sanchar Nigam Ltd. Aut
4134 1013 803 CHINANET-BACKBONE
721 1009 702 DLA Systems Automation Center
19029 780 671 New Edge Networks
11492 627 607 Cable One
22773 644 603 Cox Communications, Inc.
6197 1009 538 BellSouth Network Solutions,
19262 669 513 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 502 CenturyTel Internet Holdings,
17488 502 495 Hathway IP Over Cable Interne
9498 565 493 BHARTI BT INTERNET LTD.
855 552 488 Canadian Research Network
7545 538 467 TPG Internet Pty Ltd
7757 476 457 AT&T Broadband
8151 680 455 UniNet S.A. de C.V.
3602 539 430 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
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
/13:200 /14:357 /15:692 /16:8777 /17:3161 /18:5199
/19:11482 /20:12926 /21:11153 /22:14325 /23:15422 /24:100965
/25:363 /26:253 /27:226 /28:63 /29:69 /30:34
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 911 928 Covad Communications
7018 799 1507 AT&T WorldNet Services
6197 798 1009 BellSouth Network Solutions,
19029 712 780 New Edge Networks
9583 693 872 Sify Limited
11492 618 627 Cable One
4323 604 1253 Time Warner Telecom
2386 593 869 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 442 589 BellSouth Network Solutions,
855 426 552 Canadian Research Network
5668 412 532 CenturyTel Internet Holdings,
1239 378 853 Sprint
15270 368 398 PaeTec.net -a division of Pae
702 365 584 UUNET - Commercial IP service
6517 349 378 Yipes Communications, Inc.
22773 337 644 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:42 12:1622 13:1 15:12 16:3
17:3 18:4 20:43 24:882 25:1 30:2
32:67 38:209 40:54 44:3 45:5 47:6
52:4 55:1 56:3 57:33 58:149 59:194
60:178 61:838 62:827 63:1911 64:3109 65:2227
66:3100 67:617 68:685 69:1465 70:318 71:75
72:671 73:23 74:30 80:756 81:614 82:558
83:377 84:379 85:515 86:329 87:297 88:55
89:118 124:207 125:293 128:168 129:177 130:107
131:319 132:32 133:8 134:150 135:47 136:177
137:70 138:199 139:68 140:467 141:134 142:393
143:161 144:231 145:40 146:322 147:133 148:332
149:189 150:114 151:80 152:64 153:107 154:6
155:195 156:99 157:123 158:165 159:171 160:86
161:68 162:251 163:145 164:179 165:183 166:166
167:243 168:480 169:133 170:328 171:12 172:1
183:1 190:51 192:5773 193:3393 194:2565 195:1795
196:854 198:3883 199:3260 200:4268 201:813 202:6547
203:6906 204:3942 205:2089 206:2411 207:2927 208:2039
209:3724 210:1916 211:697 212:1244 213:1445 214:333
215:41 216:4094 217:1162 218:242 219:170 220:648
221:353 222:138
End of report
