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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 12 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191730
Prefixes after maximum aggregation: 105644
Unique aggregates announced to Internet: 93774
Total ASes present in the Internet Routing Table: 22623
Origin-only ASes present in the Internet Routing Table: 19684
Origin ASes announcing only one prefix: 9447
Transit ASes present in the Internet Routing Table: 2939
Transit-only ASes present in the Internet Routing Table: 63
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 24
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 2
Unregistered ASNs in the Routing Table: 2
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 9
Number of addresses announced to Internet: 1548905384
Equivalent to 92 /8s, 82 /16s and 107 /24s
Percentage of available address space announced: 41.8
Percentage of allocated address space announced: 60.4
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94729
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41448
Total APNIC prefixes after maximum aggregation: 17040
Prefixes being announced from the APNIC address blocks: 39141
Unique aggregates announced from the APNIC address blocks: 18443
APNIC Region origin ASes present in the Internet Routing Table: 2624
APNIC Region origin ASes announcing only one prefix: 741
APNIC Region transit ASes present in the Internet Routing Table: 397
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 236897888
Equivalent to 14 /8s, 30 /16s and 198 /24s
Percentage of available APNIC address space announced: 74.1
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: 97546
Total ARIN prefixes after maximum aggregation: 58145
Prefixes being announced from the ARIN address blocks: 71355
Unique aggregates announced from the ARIN address blocks: 26904
ARIN Region origin ASes present in the Internet Routing Table: 10830
ARIN Region origin ASes announcing only one prefix: 4088
ARIN Region transit ASes present in the Internet Routing Table: 994
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 295459328
Equivalent to 17 /8s, 156 /16s and 90 /24s
Percentage of available ARIN address space announced: 76.6
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 38498
Total RIPE prefixes after maximum aggregation: 25810
Prefixes being announced from the RIPE address blocks: 35549
Unique aggregates announced from the RIPE address blocks: 23956
RIPE Region origin ASes present in the Internet Routing Table: 8243
RIPE Region origin ASes announcing only one prefix: 4338
RIPE Region transit ASes present in the Internet Routing Table: 1357
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 259900228
Equivalent to 15 /8s, 125 /16s and 195 /24s
Percentage of available RIPE address space announced: 81.5
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
40960-41983
RIPE Address Blocks 62/8, 80/5, 88/6, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11970
Total LACNIC prefixes after maximum aggregation: 3751
Prefixes being announced from the LACNIC address blocks: 10008
Unique aggregates announced from the LACNIC address blocks: 5664
LACNIC Region origin ASes present in the Internet Routing Table: 706
LACNIC Region origin ASes announcing only one prefix: 238
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 31030016
Equivalent to 1 /8s, 217 /16s and 123 /24s
Percentage of available LACNIC address space announced: 46.2
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: 2266
Total AfriNIC prefixes after maximum aggregation: 898
Prefixes being announced from the AfriNIC address blocks: 1521
Unique aggregates announced from the AfriNIC address blocks: 953
AfriNIC Region origin ASes present in the Internet Routing Table: 157
AfriNIC Region origin ASes announcing only one prefix: 42
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4183040
Equivalent to 0 /8s, 63 /16s and 212 /24s
Percentage of available AfriNIC address space announced: 12.5
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 1244 7495 231 CHINANET-BACKBONE
4755 946 257 73 Videsh Sanchar Nigam Ltd. Aut
9583 912 109 15 Sify Limited
9498 736 211 69 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 611 1668 469 Telstra Pty Ltd
7545 551 124 74 TPG Internet Pty Ltd
17488 519 32 17 Hathway IP Over Cable Interne
17676 490 7093 110 Softbank BB Corp.
9443 452 111 83 Primus Telecommunications
18101 424 85 23 Reliance Infocom Ltd Internet
17974 402 129 14 PT TELEKOMUNIKASI INDONESIA
17849 396 28 123 Telecommunications Technology
17557 382 30 172 Pakistan Telecom
4802 379 81 168 Wantree Development
2907 336 1733 311 SINET Japan
9929 330 255 61 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
4837 286 3190 125 chinanet IDC center beijing n
9800 276 410 58 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1467 6246 942 AT&T WorldNet Services
721 1030 21998 315 DLA Systems Automation Center
6197 1015 636 477 BellSouth Network Solutions,
4323 965 746 272 Time Warner Telecom
174 958 5769 890 Cogent Communications
701 947 6754 780 UUNET Technologies, Inc.
18566 945 272 8 Covad Communications
2386 920 558 710 AT&T Data Communications Serv
1239 848 2777 602 Sprint
19262 722 2188 190 Verizon Global Networks
20115 714 620 382 Charter Communications
209 693 3663 546 Qwest
22773 672 1741 40 Cox Communications, Inc.
11492 657 89 11 Cable One
7011 651 218 413 Citizens Utilities
6198 599 568 236 BellSouth Network Solutions,
852 582 1084 382 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 532 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 564 1932 443 UUNET - Commercial IP service
3301 316 1187 301 TeliaNet Sweden
3352 304 1639 33 Ibernet, Internet Access Netw
3320 281 5012 237 Deutsche Telekom AG
8220 279 471 265 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 235 89 210 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 216 42 11 LINKdotNET AS number
8708 215 276 204 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
3215 204 1760 97 France Telecom Transpac
30890 204 18 78 SC Kappa Invexim SRL
3269 201 2182 72 TELECOM ITALIA
1257 194 741 166 SWIPnet Swedish IP Network
8866 187 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 168 171 97 AUCS Communications Services
9121 160 931 29 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 725 1788 226 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 356 113 85 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
6471 253 74 28 ENTEL CHILE S.A.
14117 209 13 7 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
6503 180 151 82 AVANTEL, S.A.
7303 180 84 28 Telecom Argentina Stet-France
21826 133 17 22 INTERCABLE
11556 132 80 4 Cable-Wireless Panama
19429 131 84 45 E.T.B.
14522 129 18 9 SatNet S.A.
19169 129 8 26 Telconet
14259 119 10 15 GTD Internet S.A.
23216 113 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
14420 108 7 23 ANDINATEL S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 284 803 231 The Internet Solution
8452 168 60 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 131 314 105 Tertiary Education Network
15475 124 84 4 Nile Online
5536 120 8 18 Internet Egypt Network
24835 116 48 6 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 69 139 60 The Internetworking Company o
20928 60 16 3 Noor Advanced Technologies AS
15706 44 8 3 Sudatel Internet Exchange Aut
5713 39 294 35 Telkom SA Ltd
33774 30 7 20 AS Number for Telecom Algeria
16637 25 18 23 Johnnic e-Ventures
23889 24 8 11 MAURITIUS TELECOM
10798 23 1 14 Standard Bank of South Africa
12455 23 6 3 Jambonet Autonomous system
8524 22 1 5 AUCEGYPT Autonomous System
33766 21 2 1 Nyala Communications Pty Ltd
21280 20 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1244 1013 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 912 897 Sify Limited
4755 946 873 Videsh Sanchar Nigam Ltd. Aut
721 1030 715 DLA Systems Automation Center
4323 965 693 Time Warner Telecom
9498 736 667 BHARTI BT INTERNET LTD.
11492 657 646 Cable One
22773 672 632 Cox Communications, Inc.
6197 1015 538 BellSouth Network Solutions,
19262 722 532 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 509 CenturyTel Internet Holdings,
17488 519 502 Hathway IP Over Cable Interne
8151 725 499 UniNet S.A. de C.V.
855 573 499 Canadian Research Network
7545 551 477 TPG Internet Pty Ltd
3602 525 421 Sprint Canada, Inc.
22047 432 421 VTR PUNTO NET S.A.
15270 440 407 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
198.18.1.0/24 3301 TeliaNet Sweden
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
192.172.0.0/19 721 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 /10:11 /11:28 /12:93
/13:203 /14:369 /15:723 /16:8894 /17:3309 /18:5425
/19:11861 /20:13443 /21:11756 /22:14883 /23:16028 /24:103551
/25:383 /26:294 /27:178 /28:68 /29:78 /30:80
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 795 1015 BellSouth Network Solutions,
7018 777 1467 AT&T WorldNet Services
9583 742 912 Sify Limited
11492 645 657 Cable One
2386 638 920 AT&T Data Communications Serv
7011 559 651 Citizens Utilities
19916 557 563 OLM LLC
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 441 599 BellSouth Network Solutions,
9498 426 736 BHARTI BT INTERNET LTD.
5668 415 532 CenturyTel Internet Holdings,
15270 409 440 PaeTec.net -a division of Pae
1239 391 848 Sprint
17849 390 396 Telecommunications Technology
4755 379 946 Videsh Sanchar Nigam Ltd. Aut
6517 374 408 Yipes Communications, Inc.
18101 355 424 Reliance Infocom Ltd Internet
22773 353 672 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:43 11:1 12:1616 13:1 15:15
16:3 17:3 18:4 20:41 24:776 25:1
32:58 38:233 40:54 41:3 44:3 47:6
52:4 55:1 56:3 57:24 58:188 59:245
60:188 61:860 62:804 63:1891 64:3058 65:2242
66:2941 67:621 68:673 69:1523 70:390 71:85
72:803 74:53 75:1 80:773 81:659 82:638
83:388 84:381 85:563 86:405 87:398 88:109
89:322 121:1 122:2 123:1 124:273 125:545
128:148 129:184 130:119 131:314 132:34 133:8
134:159 135:48 136:178 137:82 138:206 139:54
140:480 141:135 142:383 143:170 144:228 145:40
146:318 147:137 148:346 149:191 150:114 151:94
152:69 153:106 154:5 155:207 156:186 157:143
158:167 159:172 160:91 161:77 162:246 163:161
164:242 165:222 166:173 167:244 168:498 169:125
170:353 171:14 183:1 190:85 192:5725 193:3358
194:2651 195:1956 196:855 198:3963 199:3234 200:4611
201:988 202:6740 203:7057 204:3894 205:2051 206:2406
207:2923 208:2185 209:3404 210:2055 211:712 212:1243
213:1476 214:361 215:41 216:3999 217:1172 218:294
219:241 220:735 221:351 222:187
End of report
