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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 13 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 178310
Prefixes after maximum aggregation: 100082
Unique aggregates announced to Internet: 86534
Total ASes present in the Internet Routing Table: 21311
Origin-only ASes present in the Internet Routing Table: 18531
Origin ASes announcing only one prefix: 8783
Transit ASes present in the Internet Routing Table: 2780
Transit-only ASes present in the Internet Routing Table: 73
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1478732032
Equivalent to 88 /8s, 35 /16s and 169 /24s
Percentage of available address space announced: 39.9
Percentage of allocated address space announced: 58.9
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86197
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37391
Total APNIC prefixes after maximum aggregation: 15854
Prefixes being announced from the APNIC address blocks: 35171
Unique aggregates announced from the APNIC address blocks: 17225
APNIC Region origin ASes present in the Internet Routing Table: 2459
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 383
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 210265792
Equivalent to 12 /8s, 136 /16s and 102 /24s
Percentage of available APNIC address space announced: 65.7
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: 93769
Total ARIN prefixes after maximum aggregation: 56289
Prefixes being announced from the ARIN address blocks: 73103
Unique aggregates announced from the ARIN address blocks: 28042
ARIN Region origin ASes present in the Internet Routing Table: 10427
ARIN Region origin ASes announcing only one prefix: 3878
ARIN Region transit ASes present in the Internet Routing Table: 960
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 282206720
Equivalent to 16 /8s, 210 /16s and 34 /24s
Percentage of available ARIN address space announced: 70.1
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: 35176
Total RIPE prefixes after maximum aggregation: 23658
Prefixes being announced from the RIPE address blocks: 32168
Unique aggregates announced from the RIPE address blocks: 21423
RIPE Region origin ASes present in the Internet Routing Table: 7546
RIPE Region origin ASes announcing only one prefix: 3953
RIPE Region transit ASes present in the Internet Routing Table: 1242
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 229619072
Equivalent to 13 /8s, 175 /16s and 181 /24s
Percentage of available RIPE address space announced: 68.4
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: 10133
Total LACNIC prefixes after maximum aggregation: 3421
Prefixes being announced from the LACNIC address blocks: 8310
Unique aggregates announced from the LACNIC address blocks: 4816
LACNIC Region origin ASes present in the Internet Routing Table: 662
LACNIC Region origin ASes announcing only one prefix: 212
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.3
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 22761472
Equivalent to 1 /8s, 91 /16s and 80 /24s
Percentage of available LACNIC address space announced: 33.9
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: 1835
Total AfriNIC prefixes after maximum aggregation: 860
Prefixes being announced from the AfriNIC address blocks: 1197
Unique aggregates announced from the AfriNIC address blocks: 844
AfriNIC Region origin ASes present in the Internet Routing Table: 143
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 27
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2974720
Equivalent to 0 /8s, 45 /16s and 100 /24s
Percentage of available AfriNIC address space announced: 8.9
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 995 6450 206 CHINANET-BACKBONE
9583 837 109 14 Sify Limited
4755 768 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 724 3930 299 Korea Telecom (KIX)
1221 666 1364 472 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 488 211 68 BHARTI BT INTERNET LTD.
17676 477 6885 101 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 399 89 85 Primus Telecommunications
4802 356 74 160 Wantree Development
2907 338 1763 315 SINET Japan
9929 332 217 50 China Netcom Corp.
7474 329 227 227 SingTel Optus Pty Ltd
18101 326 68 23 Reliance Infocom Ltd Internet
17974 312 73 36 PT TELEKOMUNIKASI INDONESIA
17557 308 24 161 Pakistan Telecom
4780 283 226 16 Digital United Inc.
9837 270 78 169 Powertel Ltd
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6313 956 AT&T WorldNet Services
4323 1202 723 235 Time Warner Telecom
174 1042 5825 959 Cogent Communications
721 1031 21938 308 DLA Systems Automation Center
6197 970 435 506 BellSouth Network Solutions,
701 966 8099 810 UUNET Technologies, Inc.
18566 891 272 8 Covad Communications
2386 876 500 684 AT&T Data Communications Serv
1239 849 2805 604 Sprint
209 661 3606 529 Qwest
20115 657 537 339 Charter Communications
11492 641 89 12 Cable One
22773 603 1478 33 Cox Communications, Inc.
19262 595 1715 147 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
855 563 243 65 Canadian Research Network
19916 563 49 54 OLM LLC
6478 527 1452 290 AT&T Worldnet Services
3356 519 10617 399 Level 3 Communications, LLC
3602 518 127 106 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 589 1954 467 UUNET - Commercial IP service
3301 303 1071 289 TeliaNet Sweden
3352 301 1500 34 Ibernet, Internet Access Netw
3320 285 3485 239 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
3215 253 1326 82 France Telecom Transpac
680 244 2024 238 DFN-IP service G-WiN
3246 227 487 217 Song Networks
8708 221 274 205 Romania Data Systems S.A.
6746 211 52 183 Dynamic Network Technologies,
1257 189 712 169 SWIPnet Swedish IP Network
3269 185 1925 70 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 172 37 11 Bulgarian Telecommunication C
5400 166 328 135 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
6830 162 669 33 UPC Distribution Services
3300 157 169 88 AUCS Communications Services
12479 157 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 545 808 211 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
16814 295 18 7 NSS, S.A.
11172 294 109 76 Servicios Alestra S.A de C.V
14117 184 11 6 Telefonica del Sur S.A.
13999 175 52 9 Mega Cable S.A. de C.V.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 123 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 115 148 76 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 101 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
7315 96 6 3 Grupo Rey Moreno
14522 95 12 8 SatNet S.A.
4270 92 17 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 812 230 The Internet Solution
8452 142 60 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 101 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
24835 67 34 6 RAYA Telecom - Egypt
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 35 5 26 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
21280 22 4 4 Swift Global Kenya Ltd.Is an
12455 18 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1202 967 Time Warner Telecom
18566 891 883 Covad Communications
9583 837 823 Sify Limited
4134 995 789 CHINANET-BACKBONE
721 1031 723 DLA Systems Automation Center
4755 768 704 Videsh Sanchar Nigam Ltd. Aut
11492 641 629 Cable One
22773 603 570 Cox Communications, Inc.
19916 563 509 OLM LLC
855 563 498 Canadian Research Network
5668 514 490 CenturyTel Internet Holdings,
6197 970 464 BellSouth Network Solutions,
19262 595 448 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
17488 436 427 Hathway IP Over Cable Interne
4766 724 425 Korea Telecom (KIX)
9498 488 420 BHARTI BT INTERNET LTD.
3602 518 412 Sprint Canada, Inc.
17676 477 376 Softbank BB Corp.
6467 404 357 E.Spire Communications, Inc.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
38976 UNALLOCATED 62.192.224.0/19 21166 Satgate autonomous s
38976 UNALLOCATED 62.192.232.0/24 21166 Satgate autonomous s
38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.152.0/23 6828 Ekaterinburg Telegra
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
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
192.43.230.0/24 7575 Australian Academic and Rease
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
192.72.0.0/18 4780 Digital United Inc.
192.72.0.0/16 4780 Digital United Inc.
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 /8:18 /9:5 /10:8 /11:20 /12:87
/13:196 /14:344 /15:676 /16:8640 /17:2949 /18:4968
/19:11191 /20:12340 /21:10534 /22:13616 /23:14829 /24:96915
/25:344 /26:251 /27:198 /28:62 /29:26 /30:53
/31:3 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 874 891 Covad Communications
6197 785 970 BellSouth Network Solutions,
7018 745 1475 AT&T WorldNet Services
9583 658 837 Sify Limited
11492 632 641 Cable One
2386 610 876 AT&T Data Communications Serv
4323 577 1202 Time Warner Telecom
19916 557 563 OLM LLC
4766 524 724 Korea Telecom (KIX)
855 435 563 Canadian Research Network
5668 403 514 CenturyTel Internet Holdings,
7011 399 465 Citizens Utilities
702 373 589 UUNET - Commercial IP service
1239 364 849 Sprint
6198 358 501 BellSouth Network Solutions,
6517 331 358 Yipes Communications, Inc.
15270 330 357 PaeTec.net -a division of Pae
22773 310 603 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
701 279 966 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:42 12:1632 13:1 15:11 16:3
17:3 18:4 20:42 24:717 25:1 30:2
32:69 38:186 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:112 59:149 60:179
61:818 62:781 63:1890 64:2944 65:2149 66:2999
67:590 68:696 69:1364 70:269 71:43 72:564
73:19 80:771 81:591 82:507 83:352 84:340
85:408 86:264 87:132 88:17 124:1 125:173
128:152 129:171 130:101 131:310 132:33 133:1
134:151 135:46 136:170 137:65 138:179 139:93
140:446 141:136 142:404 143:146 144:228 145:39
146:311 147:134 148:326 149:188 150:113 151:72
152:115 153:98 154:6 155:183 156:91 157:119
158:152 159:174 160:86 161:68 162:248 163:175
164:167 165:172 166:147 167:236 168:477 169:139
170:308 171:12 192:5754 193:3397 194:2461 195:1712
196:721 198:3898 199:3284 200:4155 201:551 202:6361
203:6671 204:3820 205:2083 206:2425 207:2917 208:2013
209:3449 210:1837 211:793 212:1240 213:1441 214:320
215:40 216:3804 217:1159 218:231 219:134 220:641
221:331 222:144
End of report
