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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 12 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 186246
Prefixes after maximum aggregation: 103066
Unique aggregates announced to Internet: 91067
Total ASes present in the Internet Routing Table: 21920
Origin-only ASes present in the Internet Routing Table: 19053
Origin ASes announcing only one prefix: 9075
Transit ASes present in the Internet Routing Table: 2867
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: 1503355744
Equivalent to 89 /8s, 155 /16s and 99 /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: 91679
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39105
Total APNIC prefixes after maximum aggregation: 16387
Prefixes being announced from the APNIC address blocks: 36805
Unique aggregates announced from the APNIC address blocks: 18105
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: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 221823968
Equivalent to 13 /8s, 56 /16s and 195 /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: 97077
Total ARIN prefixes after maximum aggregation: 57413
Prefixes being announced from the ARIN address blocks: 76178
Unique aggregates announced from the ARIN address blocks: 29182
ARIN Region origin ASes present in the Internet Routing Table: 10628
ARIN Region origin ASes announcing only one prefix: 3976
ARIN Region transit ASes present in the Internet Routing Table: 981
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 294002688
Equivalent to 17 /8s, 134 /16s and 32 /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: 37090
Total RIPE prefixes after maximum aggregation: 24776
Prefixes being announced from the RIPE address blocks: 34116
Unique aggregates announced from the RIPE address blocks: 23103
RIPE Region origin ASes present in the Internet Routing Table: 7858
RIPE Region origin ASes announcing only one prefix: 4109
RIPE Region transit ASes present in the Internet Routing Table: 1306
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 243928704
Equivalent to 14 /8s, 138 /16s and 14 /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: 10858
Total LACNIC prefixes after maximum aggregation: 3592
Prefixes being announced from the LACNIC address blocks: 9016
Unique aggregates announced from the LACNIC address blocks: 5315
LACNIC Region origin ASes present in the Internet Routing Table: 681
LACNIC Region origin ASes announcing only one prefix: 223
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: 26349568
Equivalent to 1 /8s, 146 /16s and 16 /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: 2103
Total AfriNIC prefixes after maximum aggregation: 898
Prefixes being announced from the AfriNIC address blocks: 1451
Unique aggregates announced from the AfriNIC address blocks: 941
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: 4031744
Equivalent to 0 /8s, 61 /16s and 133 /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 988 6927 210 CHINANET-BACKBONE
4755 898 259 71 Videsh Sanchar Nigam Ltd. Aut
9583 865 109 16 Sify Limited
4766 682 3924 303 Korea Telecom (KIX)
1221 623 1557 477 Telstra Pty Ltd
9498 567 212 72 BHARTI BT INTERNET LTD.
7545 528 108 70 TPG Internet Pty Ltd
17488 502 31 7 Hathway IP Over Cable Interne
17676 484 6997 107 Softbank BB Corp.
9443 451 111 82 Primus Telecommunications
4802 378 91 172 Wantree Development
18101 337 69 25 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17974 326 118 25 PT TELEKOMUNIKASI INDONESIA
17849 323 21 106 Telecommunications Technology
17557 322 27 165 Pakistan Telecom
9929 321 220 55 China Netcom Corp.
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 1508 6258 967 AT&T WorldNet Services
4323 1253 716 250 Time Warner Telecom
721 1015 21961 306 DLA Systems Automation Center
6197 1010 615 471 BellSouth Network Solutions,
174 958 5783 906 Cogent Communications
701 936 8047 776 UUNET Technologies, Inc.
18566 929 272 8 Covad Communications
2386 875 537 667 AT&T Data Communications Serv
1239 853 2805 606 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 624 213 405 Citizens Utilities
6198 589 530 236 BellSouth Network Solutions,
852 586 1089 388 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 551 244 64 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 581 1951 454 UUNET - Commercial IP service
3352 309 1596 32 Ibernet, Internet Access Netw
3301 308 1071 292 TeliaNet Sweden
8220 291 473 269 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 214 275 200 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
5400 172 363 141 BT Ignite European Backbone
786 171 1778 171 The JANET IP Service
6830 167 765 35 UPC Distribution Services
30890 161 14 62 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 698 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 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 125 8 28 Telconet
6503 119 149 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 101 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 166 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
15475 133 84 4 Nile Online
2018 123 314 104 Tertiary Education Network
5536 120 8 22 Internet Egypt Network
24835 115 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
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 1003 Time Warner Telecom
18566 929 921 Covad Communications
9583 865 849 Sify Limited
4755 898 827 Videsh Sanchar Nigam Ltd. Aut
4134 988 778 CHINANET-BACKBONE
721 1015 709 DLA Systems Automation Center
19029 781 672 New Edge Networks
11492 627 607 Cable One
22773 643 602 Cox Communications, Inc.
6197 1010 539 BellSouth Network Solutions,
19262 669 513 Verizon Global Networks
19916 563 509 OLM LLC
5668 533 503 CenturyTel Internet Holdings,
9498 567 495 BHARTI BT INTERNET LTD.
17488 502 495 Hathway IP Over Cable Interne
855 551 487 Canadian Research Network
8151 698 471 UniNet S.A. de C.V.
7545 528 458 TPG Internet Pty Ltd
7757 476 457 AT&T Broadband
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
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 /11:26 /12:88
/13:200 /14:357 /15:695 /16:8780 /17:3169 /18:5205
/19:11502 /20:12946 /21:11199 /22:14379 /23:15481 /24:101139
/25:370 /26:259 /27:218 /28:63 /29:69 /30:34
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 912 929 Covad Communications
6197 799 1010 BellSouth Network Solutions,
7018 798 1508 AT&T WorldNet Services
19029 713 781 New Edge Networks
9583 694 865 Sify Limited
11492 618 627 Cable One
4323 603 1253 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 458 476 AT&T Broadband
6198 442 589 BellSouth Network Solutions,
855 425 551 Canadian Research Network
5668 413 533 CenturyTel Internet Holdings,
1239 379 853 Sprint
15270 368 399 PaeTec.net -a division of Pae
702 362 581 UUNET - Commercial IP service
6517 351 379 Yipes Communications, Inc.
8151 342 698 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 58:143 59:195 60:181
61:839 62:832 63:1911 64:3122 65:2229 66:3062
67:623 68:686 69:1471 70:325 71:76 72:677
73:23 74:29 80:762 81:613 82:575 83:378
84:378 85:517 86:343 87:308 88:57 89:128
124:212 125:354 128:161 129:174 130:107 131:316
132:31 133:8 134:150 135:47 136:177 137:71
138:198 139:65 140:467 141:134 142:393 143:161
144:228 145:41 146:321 147:133 148:330 149:189
150:114 151:80 152:64 153:107 154:6 155:196
156:100 157:130 158:165 159:169 160:86 161:70
162:252 163:145 164:179 165:183 166:166 167:243
168:480 169:134 170:327 171:12 172:1 183:1
190:83 192:5759 193:3397 194:2572 195:1815 196:849
198:3888 199:3262 200:4271 201:824 202:6523 203:6871
204:3924 205:2109 206:2421 207:2935 208:2032 209:3732
210:1912 211:698 212:1232 213:1457 214:337 215:41
216:4094 217:1164 218:242 219:172 220:653 221:353
222:153
End of report
