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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 13 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 186394
Prefixes after maximum aggregation: 103014
Unique aggregates announced to Internet: 91081
Total ASes present in the Internet Routing Table: 21910
Origin-only ASes present in the Internet Routing Table: 19042
Origin ASes announcing only one prefix: 9069
Transit ASes present in the Internet Routing Table: 2868
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: 21
Prefixes from unregistered ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1503080800
Equivalent to 89 /8s, 151 /16s and 49 /24s
Percentage of available address space announced: 40.6
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 91770
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39126
Total APNIC prefixes after maximum aggregation: 16381
Prefixes being announced from the APNIC address blocks: 36826
Unique aggregates announced from the APNIC address blocks: 18108
APNIC Region origin ASes present in the Internet Routing Table: 2537
APNIC Region origin ASes announcing only one prefix: 721
APNIC Region transit ASes present in the Internet Routing Table: 388
Average APNIC Region AS path length visible: 4.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 221802976
Equivalent to 13 /8s, 56 /16s and 113 /24s
Percentage of available APNIC address space announced: 69.4
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: 97088
Total ARIN prefixes after maximum aggregation: 57390
Prefixes being announced from the ARIN address blocks: 76221
Unique aggregates announced from the ARIN address blocks: 29221
ARIN Region origin ASes present in the Internet Routing Table: 10623
ARIN Region origin ASes announcing only one prefix: 3971
ARIN Region transit ASes present in the Internet Routing Table: 985
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 294211840
Equivalent to 17 /8s, 137 /16s and 81 /24s
Percentage of available ARIN address space announced: 73.1
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: 37156
Total RIPE prefixes after maximum aggregation: 24767
Prefixes being announced from the RIPE address blocks: 34153
Unique aggregates announced from the RIPE address blocks: 23039
RIPE Region origin ASes present in the Internet Routing Table: 7860
RIPE Region origin ASes announcing only one prefix: 4112
RIPE Region transit ASes present in the Internet Routing Table: 1301
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 243945344
Equivalent to 14 /8s, 138 /16s and 79 /24s
Percentage of available RIPE address space announced: 72.7
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: 10928
Total LACNIC prefixes after maximum aggregation: 3581
Prefixes being announced from the LACNIC address blocks: 9087
Unique aggregates announced from the LACNIC address blocks: 5360
LACNIC Region origin ASes present in the Internet Routing Table: 675
LACNIC Region origin ASes announcing only one prefix: 219
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: 20
Number of LACNIC addresses announced to Internet: 26100736
Equivalent to 1 /8s, 142 /16s and 68 /24s
Percentage of available LACNIC address space announced: 38.9
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: 2083
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1456
Unique aggregates announced from the AfriNIC address blocks: 944
AfriNIC Region origin ASes present in the Internet Routing Table: 150
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: 4030464
Equivalent to 0 /8s, 61 /16s and 128 /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 989 6923 209 CHINANET-BACKBONE
4755 896 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 866 109 16 Sify Limited
4766 682 3924 303 Korea Telecom (KIX)
1221 620 1557 474 Telstra Pty Ltd
9498 568 212 72 BHARTI BT INTERNET LTD.
7545 528 108 70 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 451 111 82 Primus Telecommunications
4802 379 77 173 Wantree Development
18101 337 69 25 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17974 326 118 25 PT TELEKOMUNIKASI INDONESIA
17849 325 21 107 Telecommunications Technology
9929 321 220 55 China Netcom Corp.
17557 314 27 159 Pakistan Telecom
7474 299 211 230 SingTel Optus Pty Ltd
9800 268 410 67 CHINA UNICOM
4837 267 2890 108 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1509 6258 968 AT&T WorldNet Services
4323 1254 716 251 Time Warner Telecom
721 1014 21961 306 DLA Systems Automation Center
6197 1009 615 471 BellSouth Network Solutions,
174 958 5783 906 Cogent Communications
701 937 8047 777 UUNET Technologies, Inc.
18566 930 272 8 Covad Communications
2386 875 537 667 AT&T Data Communications Serv
1239 851 2804 604 Sprint
19029 785 151 109 New Edge Networks
209 714 3615 559 Qwest
20115 675 591 363 Charter Communications
19262 670 1977 157 Verizon Global Networks
22773 643 1484 41 Cox Communications, Inc.
11492 627 86 20 Cable One
7011 624 213 405 Citizens Utilities
6198 588 530 235 BellSouth Network Solutions,
852 586 1089 388 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 560 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1951 453 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 292 474 270 COLT Telecommunications
3320 283 3476 235 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 504 222 Song Networks
6746 227 89 201 Dynamic Network Technologies,
8708 213 275 199 Romania Data Systems S.A.
24863 207 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
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 171 363 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
6830 167 765 35 UPC Distribution Services
30890 163 15 62 SC Kappa Invexim SRL
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 700 1067 226 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 307 20 8 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
21826 130 16 21 INTERCABLE
5639 129 12 9 Telecommunications Services o
19169 124 8 30 Telconet
6503 121 149 74 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 100 21 8 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 169 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 120 8 22 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
15475 113 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
20928 58 16 2 Noor Advanced Technologies AS
12455 41 6 3 Jambonet Autonomous system
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 29 7 20 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 1003 Time Warner Telecom
18566 930 922 Covad Communications
9583 866 850 Sify Limited
4755 896 825 Videsh Sanchar Nigam Ltd. Aut
4134 989 780 CHINANET-BACKBONE
721 1014 708 DLA Systems Automation Center
19029 785 676 New Edge Networks
11492 627 607 Cable One
22773 643 602 Cox Communications, Inc.
6197 1009 538 BellSouth Network Solutions,
19262 670 513 Verizon Global Networks
19916 563 509 OLM LLC
5668 534 504 CenturyTel Internet Holdings,
9498 568 496 BHARTI BT INTERNET LTD.
855 560 496 Canadian Research Network
17488 501 494 Hathway IP Over Cable Interne
8151 700 474 UniNet S.A. de C.V.
7545 528 458 TPG Internet Pty Ltd
7757 477 458 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,
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 /11:27 /12:88
/13:200 /14:357 /15:697 /16:8789 /17:3170 /18:5209
/19:11503 /20:12952 /21:11199 /22:14391 /23:15489 /24:101245
/25:369 /26:258 /27:219 /28:63 /29:68 /30:34
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 913 930 Covad Communications
6197 798 1009 BellSouth Network Solutions,
7018 797 1509 AT&T WorldNet Services
19029 717 785 New Edge Networks
9583 695 866 Sify Limited
11492 618 627 Cable One
4323 604 1254 Time Warner Telecom
2386 595 875 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 536 624 Citizens Utilities
4766 491 682 Korea Telecom (KIX)
7757 459 477 AT&T Broadband
6198 441 588 BellSouth Network Solutions,
855 434 560 Canadian Research Network
5668 414 534 CenturyTel Internet Holdings,
1239 379 851 Sprint
15270 370 401 PaeTec.net -a division of Pae
702 360 579 UUNET - Commercial IP service
6517 351 379 Yipes Communications, Inc.
8151 344 700 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 47:6 52:4
55:1 56:3 57:33 58:142 59:195 60:179
61:839 62:812 63:1912 64:3119 65:2230 66:3077
67:624 68:686 69:1470 70:327 71:76 72:679
73:23 74:29 80:780 81:612 82:573 83:365
84:378 85:519 86:345 87:306 88:59 89:129
124:213 125:362 128:156 129:174 130:107 131:316
132:31 133:8 134:150 135:46 136:177 137:70
138:199 139:65 140:467 141:134 142:395 143:161
144:229 145:41 146:318 147:133 148:334 149:189
150:114 151:80 152:64 153:107 154:6 155:196
156:100 157:130 158:165 159:169 160:87 161:71
162:252 163:145 164:179 165:180 166:166 167:243
168:480 169:134 170:327 171:12 172:1 183:1
190:94 192:5760 193:3394 194:2570 195:1819 196:852
198:3887 199:3262 200:4332 201:827 202:6528 203:6864
204:3924 205:2106 206:2423 207:2931 208:2032 209:3742
210:1913 211:698 212:1257 213:1455 214:311 215:41
216:4101 217:1169 218:242 219:180 220:652 221:354
222:153
End of report
