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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 13 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 191930
Prefixes after maximum aggregation: 105704
Unique aggregates announced to Internet: 93806
Total ASes present in the Internet Routing Table: 22641
Origin-only ASes present in the Internet Routing Table: 19710
Origin ASes announcing only one prefix: 9452
Transit ASes present in the Internet Routing Table: 2931
Transit-only ASes present in the Internet Routing Table: 68
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: 1549641896
Equivalent to 92 /8s, 93 /16s and 168 /24s
Percentage of available address space announced: 41.8
Percentage of allocated address space announced: 60.5
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94859
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41534
Total APNIC prefixes after maximum aggregation: 17053
Prefixes being announced from the APNIC address blocks: 39230
Unique aggregates announced from the APNIC address blocks: 18450
APNIC Region origin ASes present in the Internet Routing Table: 2618
APNIC Region origin ASes announcing only one prefix: 736
APNIC Region transit ASes present in the Internet Routing Table: 396
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 237387872
Equivalent to 14 /8s, 38 /16s and 64 /24s
Percentage of available APNIC address space announced: 74.2
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: 97668
Total ARIN prefixes after maximum aggregation: 58183
Prefixes being announced from the ARIN address blocks: 71433
Unique aggregates announced from the ARIN address blocks: 26941
ARIN Region origin ASes present in the Internet Routing Table: 10835
ARIN Region origin ASes announcing only one prefix: 4086
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: 295572736
Equivalent to 17 /8s, 158 /16s and 21 /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: 38566
Total RIPE prefixes after maximum aggregation: 25842
Prefixes being announced from the RIPE address blocks: 35633
Unique aggregates announced from the RIPE address blocks: 23993
RIPE Region origin ASes present in the Internet Routing Table: 8257
RIPE Region origin ASes announcing only one prefix: 4348
RIPE Region transit ASes present in the Internet Routing Table: 1351
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 259952196
Equivalent to 15 /8s, 126 /16s and 142 /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: 11894
Total LACNIC prefixes after maximum aggregation: 3727
Prefixes being announced from the LACNIC address blocks: 9941
Unique aggregates announced from the LACNIC address blocks: 5606
LACNIC Region origin ASes present in the Internet Routing Table: 705
LACNIC Region origin ASes announcing only one prefix: 238
LACNIC Region transit ASes present in the Internet Routing Table: 132
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 31076864
Equivalent to 1 /8s, 218 /16s and 50 /24s
Percentage of available LACNIC address space announced: 46.3
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: 2266
Total AfriNIC prefixes after maximum aggregation: 899
Prefixes being announced from the AfriNIC address blocks: 1523
Unique aggregates announced from the AfriNIC address blocks: 955
AfriNIC Region origin ASes present in the Internet Routing Table: 158
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4182784
Equivalent to 0 /8s, 63 /16s and 211 /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 1241 7478 229 CHINANET-BACKBONE
4755 965 257 73 Videsh Sanchar Nigam Ltd. Aut
9583 910 109 15 Sify Limited
9498 765 211 69 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 612 1796 470 Telstra Pty Ltd
7545 550 124 73 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 406 129 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 331 255 61 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
4837 287 3191 126 chinanet IDC center beijing n
10139 280 19 5 Meridian Telekoms
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1467 6246 943 AT&T WorldNet Services
721 1030 21998 315 DLA Systems Automation Center
6197 1014 636 477 BellSouth Network Solutions,
4323 962 746 271 Time Warner Telecom
174 957 5769 889 Cogent Communications
701 947 6754 780 UUNET Technologies, Inc.
18566 945 272 8 Covad Communications
2386 921 558 711 AT&T Data Communications Serv
1239 850 2785 604 Sprint
19262 723 2204 191 Verizon Global Networks
20115 714 620 382 Charter Communications
209 694 3663 547 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
702 565 1948 444 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 237 90 212 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
30890 205 18 79 SC Kappa Invexim SRL
3215 204 1760 97 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
1257 194 741 166 SWIPnet Swedish IP Network
8866 181 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 98 AUCS Communications Services
5400 160 352 142 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 723 1787 228 UniNet S.A. de C.V.
22047 432 206 11 VTR PUNTO NET S.A.
11172 358 113 85 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
6147 267 134 22 Telefonica Del Peru
6471 252 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 169 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 31 7 21 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
21491 20 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4134 1241 1012 CHINANET-BACKBONE
18566 945 937 Covad Communications
9583 910 895 Sify Limited
4755 965 892 Videsh Sanchar Nigam Ltd. Aut
721 1030 715 DLA Systems Automation Center
9498 765 696 BHARTI BT INTERNET LTD.
4323 962 691 Time Warner Telecom
11492 657 646 Cable One
22773 672 632 Cox Communications, Inc.
6197 1014 537 BellSouth Network Solutions,
19262 723 532 Verizon Global Networks
19916 563 509 OLM LLC
5668 532 509 CenturyTel Internet Holdings,
17488 519 502 Hathway IP Over Cable Interne
855 573 499 Canadian Research Network
8151 723 495 UniNet S.A. de C.V.
7545 550 477 TPG Internet Pty Ltd
3602 526 422 Sprint Canada, Inc.
22047 432 421 VTR PUNTO NET S.A.
15270 441 408 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 /12:94
/13:201 /14:369 /15:722 /16:8896 /17:3307 /18:5428
/19:11867 /20:13466 /21:11769 /22:14898 /23:16040 /24:103679
/25:384 /26:296 /27:178 /28:68 /29:78 /30:79
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 928 945 Covad Communications
6197 794 1014 BellSouth Network Solutions,
7018 776 1467 AT&T WorldNet Services
9583 740 910 Sify Limited
11492 645 657 Cable One
2386 639 921 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 430 765 BHARTI BT INTERNET LTD.
5668 415 532 CenturyTel Internet Holdings,
15270 410 441 PaeTec.net -a division of Pae
1239 392 850 Sprint
17849 390 396 Telecommunications Technology
4755 381 965 Videsh Sanchar Nigam Ltd. Aut
6517 376 410 Yipes Communications, Inc.
18101 355 424 Reliance Infocom Ltd Internet
22773 354 672 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:43 11:1 12:1615 13:1 15:15
16:3 17:3 18:4 20:41 24:776 25:1
32:58 38:233 40:54 41:6 44:3 47:6
52:4 55:1 56:3 57:24 58:191 59:247
60:192 61:860 62:810 63:1888 64:3063 65:2243
66:2944 67:620 68:674 69:1540 70:390 71:85
72:809 74:55 75:1 80:766 81:666 82:638
83:394 84:384 85:568 86:405 87:398 88:115
89:333 121:1 122:2 123:1 124:273 125:553
128:150 129:184 130:119 131:315 132:34 133:8
134:159 135:48 136:178 137:82 138:205 139:54
140:489 141:135 142:383 143:170 144:229 145:40
146:310 147:137 148:346 149:191 150:114 151:94
152:69 153:107 154:5 155:207 156:186 157:144
158:166 159:173 160:91 161:77 162:246 163:160
164:243 165:225 166:173 167:244 168:498 169:125
170:353 171:14 183:1 190:86 192:5717 193:3362
194:2657 195:1963 196:855 198:3963 199:3288 200:4562
201:957 202:6738 203:7102 204:3893 205:2035 206:2405
207:2923 208:2184 209:3403 210:2060 211:710 212:1245
213:1486 214:362 215:41 216:4006 217:1176 218:297
219:235 220:735 221:351 222:188
End of report
