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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 16 Jul, 2006
Analysis Summary
----------------
BGP routing table entries examined: 192140
Prefixes after maximum aggregation: 105814
Unique aggregates announced to Internet: 93995
Total ASes present in the Internet Routing Table: 22662
Origin-only ASes present in the Internet Routing Table: 19713
Origin ASes announcing only one prefix: 9461
Transit ASes present in the Internet Routing Table: 2949
Transit-only ASes present in the Internet Routing Table: 66
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 27
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: 1551645096
Equivalent to 92 /8s, 124 /16s and 57 /24s
Percentage of available address space announced: 41.9
Percentage of allocated address space announced: 60.6
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 94901
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 41565
Total APNIC prefixes after maximum aggregation: 17102
Prefixes being announced from the APNIC address blocks: 39273
Unique aggregates announced from the APNIC address blocks: 18428
APNIC Region origin ASes present in the Internet Routing Table: 2628
APNIC Region origin ASes announcing only one prefix: 746
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: 17
Number of APNIC addresses announced to Internet: 239306592
Equivalent to 14 /8s, 67 /16s and 135 /24s
Percentage of available APNIC address space announced: 74.8
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: 97686
Total ARIN prefixes after maximum aggregation: 58177
Prefixes being announced from the ARIN address blocks: 71548
Unique aggregates announced from the ARIN address blocks: 27016
ARIN Region origin ASes present in the Internet Routing Table: 10831
ARIN Region origin ASes announcing only one prefix: 4081
ARIN Region transit ASes present in the Internet Routing Table: 1005
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 295985920
Equivalent to 17 /8s, 164 /16s and 99 /24s
Percentage of available ARIN address space announced: 76.7
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: 38624
Total RIPE prefixes after maximum aggregation: 25879
Prefixes being announced from the RIPE address blocks: 35679
Unique aggregates announced from the RIPE address blocks: 24069
RIPE Region origin ASes present in the Internet Routing Table: 8273
RIPE Region origin ASes announcing only one prefix: 4355
RIPE Region transit ASes present in the Internet Routing Table: 1360
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 260049220
Equivalent to 15 /8s, 128 /16s and 9 /24s
Percentage of available RIPE address space announced: 81.6
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: 11967
Total LACNIC prefixes after maximum aggregation: 3761
Prefixes being announced from the LACNIC address blocks: 10015
Unique aggregates announced from the LACNIC address blocks: 5675
LACNIC Region origin ASes present in the Internet Routing Table: 705
LACNIC Region origin ASes announcing only one prefix: 235
LACNIC Region transit ASes present in the Internet Routing Table: 129
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 31130880
Equivalent to 1 /8s, 219 /16s and 5 /24s
Percentage of available LACNIC address space announced: 46.4
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: 2296
Total AfriNIC prefixes after maximum aggregation: 895
Prefixes being announced from the AfriNIC address blocks: 1552
Unique aggregates announced from the AfriNIC address blocks: 958
AfriNIC Region origin ASes present in the Internet Routing Table: 159
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 11
Number of AfriNIC addresses announced to Internet: 4185344
Equivalent to 0 /8s, 63 /16s and 221 /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 7528 233 CHINANET-BACKBONE
4755 967 257 74 Videsh Sanchar Nigam Ltd. Aut
9583 914 109 15 Sify Limited
9498 767 211 71 BHARTI BT INTERNET LTD.
4766 689 4435 303 Korea Telecom (KIX)
1221 610 1779 468 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 427 85 23 Reliance Infocom Ltd Internet
17974 405 129 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 298 244 56 China Netcom Corp.
7474 295 211 229 SingTel Optus Pty Ltd
4837 288 3196 128 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 1473 6246 944 AT&T WorldNet Services
721 1018 21934 309 DLA Systems Automation Center
6197 1013 635 478 BellSouth Network Solutions,
4323 965 746 271 Time Warner Telecom
18566 947 272 8 Covad Communications
701 942 6753 777 UUNET Technologies, Inc.
174 941 5769 890 Cogent Communications
2386 920 558 709 AT&T Data Communications Serv
1239 852 2785 602 Sprint
19262 723 2190 187 Verizon Global Networks
20115 716 622 382 Charter Communications
209 693 3663 547 Qwest
22773 674 1741 40 Cox Communications, Inc.
11492 657 89 11 Cable One
7011 648 218 412 Citizens Utilities
6198 598 568 236 BellSouth Network Solutions,
852 581 1084 381 Telus Advanced Communications
855 573 247 74 Canadian Research Network
19916 563 49 54 OLM LLC
5668 533 147 23 CenturyTel Internet Holdings,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 563 1932 442 UUNET - Commercial IP service
3301 316 1187 301 TeliaNet Sweden
3352 305 1639 33 Ibernet, Internet Access Netw
3320 285 5012 234 Deutsche Telekom AG
8220 279 471 265 COLT Telecommunications
680 246 2041 243 DFN-IP service G-WiN
6746 235 89 212 Dynamic Network Technologies,
3246 230 463 220 Song Networks
24863 219 42 11 LINKdotNET AS number
8708 215 276 204 Romania Data Systems S.A.
8551 209 198 29 Bezeq International
30890 206 18 80 SC Kappa Invexim SRL
3215 204 1760 97 France Telecom Transpac
3269 201 2182 72 TELECOM ITALIA
1257 193 741 165 SWIPnet Swedish IP Network
8866 188 37 15 Bulgarian Telecommunication C
6830 175 813 37 UPC Distribution Services
786 169 1778 169 The JANET IP Service
3300 169 171 97 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 697 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 250 73 25 ENTEL CHILE S.A.
14117 211 13 7 Telefonica del Sur S.A.
7303 181 84 29 Telecom Argentina Stet-France
10481 181 72 8 Prima S.A.
6503 178 150 79 AVANTEL, S.A.
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
7738 111 410 20 Telecomunicacoes da Bahia S.A
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 803 231 The Internet Solution
8452 169 60 7 TEDATA
6713 150 135 11 Itissalat Al-MAGHRIB
2018 135 314 105 Tertiary Education Network
15475 130 84 4 Nile Online
5536 123 8 15 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
8524 22 1 5 AUCEGYPT Autonomous System
33766 21 2 1 Nyala Communications Pty Ltd
12455 20 6 3 Jambonet Autonomous system
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 1244 1011 CHINANET-BACKBONE
18566 947 939 Covad Communications
9583 914 899 Sify Limited
4755 967 893 Videsh Sanchar Nigam Ltd. Aut
721 1018 709 DLA Systems Automation Center
9498 767 696 BHARTI BT INTERNET LTD.
4323 965 694 Time Warner Telecom
11492 657 646 Cable One
22773 674 634 Cox Communications, Inc.
19262 723 536 Verizon Global Networks
6197 1013 535 BellSouth Network Solutions,
5668 533 510 CenturyTel Internet Holdings,
19916 563 509 OLM LLC
17488 519 502 Hathway IP Over Cable Interne
855 573 499 Canadian Research Network
7545 551 477 TPG Internet Pty Ltd
8151 697 469 UniNet S.A. de C.V.
3602 525 421 Sprint Canada, Inc.
22047 432 421 VTR PUNTO NET S.A.
15270 444 411 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 /12:95
/13:202 /14:369 /15:723 /16:8895 /17:3305 /18:5437
/19:11883 /20:13510 /21:11783 /22:14912 /23:16076 /24:103755
/25:385 /26:299 /27:178 /28:65 /29:79 /30:78
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 930 947 Covad Communications
6197 793 1013 BellSouth Network Solutions,
7018 779 1473 AT&T WorldNet Services
9583 744 914 Sify Limited
11492 645 657 Cable One
2386 634 920 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 556 648 Citizens Utilities
4766 500 689 Korea Telecom (KIX)
855 447 573 Canadian Research Network
6198 440 598 BellSouth Network Solutions,
9498 430 767 BHARTI BT INTERNET LTD.
5668 416 533 CenturyTel Internet Holdings,
15270 413 444 PaeTec.net -a division of Pae
1239 397 852 Sprint
17849 390 396 Telecommunications Technology
4755 382 967 Videsh Sanchar Nigam Ltd. Aut
6517 375 409 Yipes Communications, Inc.
18101 358 427 Reliance Infocom Ltd Internet
22773 355 674 Cox Communications, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:43 11:1 12:1612 13:1 15:15
16:3 17:3 18:4 20:41 24:778 25:1
32:58 38:234 40:54 41:7 44:3 47:6
52:4 55:1 56:3 57:26 58:192 59:248
60:194 61:860 62:815 63:1888 64:3078 65:2238
66:2944 67:624 68:675 69:1549 70:389 71:86
72:817 74:56 75:1 80:769 81:665 82:629
83:388 84:384 85:569 86:409 87:404 88:114
89:341 121:3 122:3 123:1 124:275 125:555
128:151 129:184 130:118 131:311 132:34 133:8
134:159 135:48 136:178 137:83 138:206 139:51
140:410 141:135 142:383 143:169 144:230 145:40
146:317 147:137 148:342 149:191 150:114 151:96
152:70 153:107 154:5 155:205 156:186 157:143
158:166 159:173 160:93 161:77 162:246 163:160
164:243 165:224 166:174 167:243 168:497 169:125
170:353 171:14 183:1 190:88 192:5717 193:3356
194:2657 195:1963 196:872 198:3956 199:3284 200:4621
201:968 202:6749 203:7090 204:3896 205:2050 206:2404
207:2920 208:2192 209:3400 210:2068 211:714 212:1242
213:1482 214:366 215:41 216:4006 217:1184 218:296
219:228 220:735 221:351 222:189
End of report
