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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 Apr, 2006
Analysis Summary
----------------
BGP routing table entries examined: 185642
Prefixes after maximum aggregation: 102846
Unique aggregates announced to Internet: 90648
Total ASes present in the Internet Routing Table: 21888
Origin-only ASes present in the Internet Routing Table: 19025
Origin ASes announcing only one prefix: 9059
Transit ASes present in the Internet Routing Table: 2863
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: 19
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: 1501710688
Equivalent to 89 /8s, 130 /16s and 73 /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: 91178
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 38959
Total APNIC prefixes after maximum aggregation: 16339
Prefixes being announced from the APNIC address blocks: 36665
Unique aggregates announced from the APNIC address blocks: 18044
APNIC Region origin ASes present in the Internet Routing Table: 2530
APNIC Region origin ASes announcing only one prefix: 722
APNIC Region transit ASes present in the Internet Routing Table: 384
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 220956128
Equivalent to 13 /8s, 43 /16s and 133 /24s
Percentage of available APNIC address space announced: 69.1
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: 97048
Total ARIN prefixes after maximum aggregation: 57331
Prefixes being announced from the ARIN address blocks: 76133
Unique aggregates announced from the ARIN address blocks: 29095
ARIN Region origin ASes present in the Internet Routing Table: 10624
ARIN Region origin ASes announcing only one prefix: 3975
ARIN Region transit ASes present in the Internet Routing Table: 977
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 293787392
Equivalent to 17 /8s, 130 /16s and 215 /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: 36877
Total RIPE prefixes after maximum aggregation: 24703
Prefixes being announced from the RIPE address blocks: 33918
Unique aggregates announced from the RIPE address blocks: 22903
RIPE Region origin ASes present in the Internet Routing Table: 7835
RIPE Region origin ASes announcing only one prefix: 4091
RIPE Region transit ASes present in the Internet Routing Table: 1310
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 243274880
Equivalent to 14 /8s, 128 /16s and 20 /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: 10650
Total LACNIC prefixes after maximum aggregation: 3584
Prefixes being announced from the LACNIC address blocks: 8819
Unique aggregates announced from the LACNIC address blocks: 5265
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: 126
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 26253056
Equivalent to 1 /8s, 144 /16s and 151 /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: 2098
Total AfriNIC prefixes after maximum aggregation: 889
Prefixes being announced from the AfriNIC address blocks: 1437
Unique aggregates announced from the AfriNIC address blocks: 919
AfriNIC Region origin ASes present in the Internet Routing Table: 152
AfriNIC Region origin ASes announcing only one prefix: 47
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: 4034048
Equivalent to 0 /8s, 61 /16s and 142 /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 893 259 69 Videsh Sanchar Nigam Ltd. Aut
9583 871 109 16 Sify Limited
4766 679 3923 305 Korea Telecom (KIX)
1221 623 1557 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 419 95 82 Primus Telecommunications
4802 376 77 171 Wantree Development
17974 342 118 25 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
18101 333 69 25 Reliance Infocom Ltd Internet
17557 321 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
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 1254 716 250 Time Warner Telecom
721 1009 21962 307 DLA Systems Automation Center
6197 1006 614 475 BellSouth Network Solutions,
174 955 5783 902 Cogent Communications
701 935 8048 775 UUNET Technologies, Inc.
18566 926 272 8 Covad Communications
2386 869 520 662 AT&T Data Communications Serv
1239 853 2804 606 Sprint
19029 781 151 109 New Edge Networks
209 709 3613 552 Qwest
20115 673 590 361 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,
852 584 1089 387 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
702 586 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 3476 234 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 232 488 222 Song Networks
6746 227 89 201 Dynamic Network Technologies,
8708 215 275 200 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
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 598 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 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
19169 123 8 32 Telconet
6503 122 149 74 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 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
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 1254 1004 Time Warner Telecom
18566 926 918 Covad Communications
9583 871 855 Sify Limited
4755 893 824 Videsh Sanchar Nigam Ltd. Aut
4134 1012 798 CHINANET-BACKBONE
721 1009 702 DLA Systems Automation Center
19029 781 672 New Edge Networks
11492 627 607 Cable One
22773 644 603 Cox Communications, Inc.
6197 1006 531 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 564 492 BHARTI BT INTERNET LTD.
855 552 488 Canadian Research Network
7545 531 460 TPG Internet Pty Ltd
7757 475 456 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
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 /8:17 /9:9 /10:8 /11:27 /12:88
/13:200 /14:357 /15:692 /16:8772 /17:3160 /18:5209
/19:11475 /20:12926 /21:11145 /22:14288 /23:15426 /24:100804
/25:363 /26:253 /27:224 /28:64 /29:68 /30:34
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 909 926 Covad Communications
7018 798 1505 AT&T WorldNet Services
6197 795 1006 BellSouth Network Solutions,
19029 713 781 New Edge Networks
9583 692 871 Sify Limited
11492 618 627 Cable One
4323 605 1254 Time Warner Telecom
2386 594 869 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 535 623 Citizens Utilities
4766 488 679 Korea Telecom (KIX)
7757 457 475 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
702 367 586 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 12:1624 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 59:192
60:178 61:840 62:815 63:1917 64:3125 65:2229
66:3099 67:620 68:683 69:1462 70:320 71:75
72:668 73:23 74:28 80:756 81:614 82:549
83:376 84:375 85:508 86:341 87:294 88:54
89:118 124:205 125:291 128:165 129:167 130:107
131:318 132:32 133:8 134:149 135:47 136:177
137:70 138:199 139:68 140:468 141:134 142:391
143:161 144:231 145:40 146:322 147:133 148:335
149:190 150:114 151:80 152:65 153:107 154:6
155:195 156:99 157:122 158:165 159:171 160:86
161:68 162:252 163:145 164:179 165:183 166:166
167:241 168:479 169:133 170:329 171:12 172:1
183:1 190:51 192:5762 193:3397 194:2567 195:1788
196:837 198:3875 199:3262 200:4254 201:708 202:6526
203:6907 204:3952 205:2088 206:2417 207:2926 208:2037
209:3720 210:1915 211:700 212:1241 213:1446 214:334
215:41 216:4092 217:1174 218:236 219:178 220:639
221:353 222:161
End of report
