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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 10 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 177876
Prefixes after maximum aggregation: 99990
Unique aggregates announced to Internet: 86501
Total ASes present in the Internet Routing Table: 21288
Origin-only ASes present in the Internet Routing Table: 18516
Origin ASes announcing only one prefix: 8783
Transit ASes present in the Internet Routing Table: 2772
Transit-only ASes present in the Internet Routing Table: 70
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
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: 1478146816
Equivalent to 88 /8s, 26 /16s and 187 /24s
Percentage of available address space announced: 39.9
Percentage of allocated address space announced: 58.8
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 85772
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37351
Total APNIC prefixes after maximum aggregation: 15838
Prefixes being announced from the APNIC address blocks: 35137
Unique aggregates announced from the APNIC address blocks: 17220
APNIC Region origin ASes present in the Internet Routing Table: 2456
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 376
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 210117824
Equivalent to 12 /8s, 134 /16s and 36 /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: 93671
Total ARIN prefixes after maximum aggregation: 56230
Prefixes being announced from the ARIN address blocks: 73008
Unique aggregates announced from the ARIN address blocks: 27954
ARIN Region origin ASes present in the Internet Routing Table: 10420
ARIN Region origin ASes announcing only one prefix: 3877
ARIN Region transit ASes present in the Internet Routing Table: 965
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 281636864
Equivalent to 16 /8s, 201 /16s and 112 /24s
Percentage of available ARIN address space announced: 69.9
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: 34837
Total RIPE prefixes after maximum aggregation: 23647
Prefixes being announced from the RIPE address blocks: 31833
Unique aggregates announced from the RIPE address blocks: 21468
RIPE Region origin ASes present in the Internet Routing Table: 7534
RIPE Region origin ASes announcing only one prefix: 3951
RIPE Region transit ASes present in the Internet Routing Table: 1240
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229098112
Equivalent to 13 /8s, 167 /16s and 194 /24s
Percentage of available RIPE address space announced: 68.3
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: 10157
Total LACNIC prefixes after maximum aggregation: 3415
Prefixes being announced from the LACNIC address blocks: 8353
Unique aggregates announced from the LACNIC address blocks: 4829
LACNIC Region origin ASes present in the Internet Routing Table: 662
LACNIC Region origin ASes announcing only one prefix: 211
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 23558656
Equivalent to 1 /8s, 103 /16s and 122 /24s
Percentage of available LACNIC address space announced: 35.1
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: 1854
Total AfriNIC prefixes after maximum aggregation: 860
Prefixes being announced from the AfriNIC address blocks: 1212
Unique aggregates announced from the AfriNIC address blocks: 857
AfriNIC Region origin ASes present in the Internet Routing Table: 145
AfriNIC Region origin ASes announcing only one prefix: 48
AfriNIC Region transit ASes present in the Internet Routing Table: 26
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2972416
Equivalent to 0 /8s, 45 /16s and 91 /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 996 6450 206 CHINANET-BACKBONE
9583 825 77 12 Sify Limited
4755 769 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 705 3930 298 Korea Telecom (KIX)
1221 669 1364 476 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 486 211 68 BHARTI BT INTERNET LTD.
17676 478 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 399 89 85 Primus Telecommunications
4802 354 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 324 68 23 Reliance Infocom Ltd Internet
17557 307 24 162 Pakistan Telecom
17974 301 72 31 PT TELEKOMUNIKASI INDONESIA
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 1446 6311 947 AT&T WorldNet Services
4323 1201 723 235 Time Warner Telecom
174 1042 5825 960 Cogent Communications
721 1031 21938 309 DLA Systems Automation Center
701 968 8101 812 UUNET Technologies, Inc.
6197 968 435 504 BellSouth Network Solutions,
2386 915 518 687 AT&T Data Communications Serv
18566 890 272 8 Covad Communications
1239 844 2805 599 Sprint
209 660 3606 528 Qwest
20115 657 537 339 Charter Communications
11492 640 89 11 Cable One
22773 602 1478 33 Cox Communications, Inc.
19262 593 1707 146 Verizon Global Networks
852 570 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 562 243 65 Canadian Research Network
6478 524 1448 288 AT&T Worldnet Services
3602 523 127 106 Sprint Canada, Inc.
3356 519 10617 399 Level 3 Communications, LLC
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
3320 287 3486 241 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 229 487 218 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 206 52 178 Dynamic Network Technologies,
1257 190 712 170 SWIPnet Swedish IP Network
3269 184 1893 69 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
3215 163 1334 80 France Telecom Transpac
6830 162 669 33 UPC Distribution Services
3300 159 169 90 AUCS Communications Services
12479 158 322 5 Uni2 Autonomous System
25186 150 211 105 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 542 776 214 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
11172 296 109 77 Servicios Alestra S.A de C.V
16814 293 18 6 NSS, S.A.
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 126 8 29 Telconet
10481 121 48 8 Prima S.A.
6503 116 148 77 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 100 8 14 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
14522 97 12 8 SatNet S.A.
7315 96 6 3 Grupo Rey Moreno
4270 93 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
21280 24 4 4 Swift Global Kenya Ltd.Is an
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
12455 19 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 1201 966 Time Warner Telecom
18566 890 882 Covad Communications
9583 825 813 Sify Limited
4134 996 790 CHINANET-BACKBONE
721 1031 722 DLA Systems Automation Center
4755 769 705 Videsh Sanchar Nigam Ltd. Aut
11492 640 629 Cable One
22773 602 569 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
5668 511 487 CenturyTel Internet Holdings,
6197 968 464 BellSouth Network Solutions,
19262 593 447 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
17488 436 427 Hathway IP Over Cable Interne
9498 486 418 BHARTI BT INTERNET LTD.
3602 523 417 Sprint Canada, Inc.
4766 705 407 Korea Telecom (KIX)
17676 478 376 Softbank BB Corp.
6467 403 356 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 28947 CJSC InT, Ekaterinbu
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 /14:346 /15:671 /16:8638 /17:2940 /18:4960
/19:11189 /20:12313 /21:10510 /22:13608 /23:14751 /24:96637
/25:344 /26:251 /27:198 /28:63 /29:26 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 873 890 Covad Communications
6197 783 968 BellSouth Network Solutions,
7018 722 1446 AT&T WorldNet Services
9583 648 825 Sify Limited
2386 638 915 AT&T Data Communications Serv
11492 631 640 Cable One
4323 576 1201 Time Warner Telecom
19916 557 563 OLM LLC
4766 508 705 Korea Telecom (KIX)
855 434 562 Canadian Research Network
5668 400 511 CenturyTel Internet Holdings,
7011 399 465 Citizens Utilities
702 373 589 UUNET - Commercial IP service
1239 364 844 Sprint
6198 355 498 BellSouth Network Solutions,
6517 330 357 Yipes Communications, Inc.
15270 330 357 PaeTec.net -a division of Pae
22773 311 602 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
701 279 968 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:43 12:1629 13:1 15:11 16:3
17:3 18:4 20:42 24:714 25:1 30:2
32:69 38:184 40:54 44:3 47:3 52:4
55:1 56:3 57:34 58:110 59:147 60:175
61:813 62:778 63:1893 64:2937 65:2146 66:3000
67:588 68:696 69:1345 70:265 71:41 72:543
73:16 80:692 81:590 82:497 83:351 84:336
85:403 86:251 87:124 125:146 128:148 129:169
130:101 131:308 132:33 133:1 134:151 135:45
136:162 137:65 138:179 139:92 140:446 141:136
142:403 143:146 144:226 145:39 146:310 147:135
148:348 149:188 150:113 151:71 152:115 153:98
154:6 155:183 156:90 157:116 158:152 159:175
160:87 161:67 162:247 163:174 164:167 165:170
166:148 167:237 168:473 169:142 170:309 171:12
192:5750 193:3344 194:2461 195:1705 196:738 198:3898
199:3269 200:4183 201:555 202:6383 203:6675 204:3822
205:2090 206:2414 207:2917 208:2012 209:3451 210:1846
211:794 212:1241 213:1401 214:317 215:40 216:3827
217:1148 218:235 219:134 220:639 221:330 222:141
End of report
