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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 18 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 178484
Prefixes after maximum aggregation: 100195
Unique aggregates announced to Internet: 86869
Total ASes present in the Internet Routing Table: 21314
Origin-only ASes present in the Internet Routing Table: 18533
Origin ASes announcing only one prefix: 8784
Transit ASes present in the Internet Routing Table: 2781
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: 1480860928
Equivalent to 88 /8s, 68 /16s and 37 /24s
Percentage of available address space announced: 40.0
Percentage of allocated address space announced: 59.0
Percentage of available address space allocated: 67.8
Total number of prefixes smaller than registry allocations: 86135
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37477
Total APNIC prefixes after maximum aggregation: 15876
Prefixes being announced from the APNIC address blocks: 35260
Unique aggregates announced from the APNIC address blocks: 17279
APNIC Region origin ASes present in the Internet Routing Table: 2457
APNIC Region origin ASes announcing only one prefix: 695
APNIC Region transit ASes present in the Internet Routing Table: 380
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 210631360
Equivalent to 12 /8s, 141 /16s and 250 /24s
Percentage of available APNIC address space announced: 65.9
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: 93865
Total ARIN prefixes after maximum aggregation: 56354
Prefixes being announced from the ARIN address blocks: 73189
Unique aggregates announced from the ARIN address blocks: 28078
ARIN Region origin ASes present in the Internet Routing Table: 10446
ARIN Region origin ASes announcing only one prefix: 3881
ARIN Region transit ASes present in the Internet Routing Table: 970
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 282401024
Equivalent to 16 /8s, 213 /16s and 25 /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: 35088
Total RIPE prefixes after maximum aggregation: 23678
Prefixes being announced from the RIPE address blocks: 32069
Unique aggregates announced from the RIPE address blocks: 21476
RIPE Region origin ASes present in the Internet Routing Table: 7534
RIPE Region origin ASes announcing only one prefix: 3949
RIPE Region transit ASes present in the Internet Routing Table: 1245
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 229684096
Equivalent to 13 /8s, 176 /16s and 179 /24s
Percentage of available RIPE address space announced: 68.5
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
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: 10207
Total LACNIC prefixes after maximum aggregation: 3423
Prefixes being announced from the LACNIC address blocks: 8390
Unique aggregates announced from the LACNIC address blocks: 4997
LACNIC Region origin ASes present in the Internet Routing Table: 663
LACNIC Region origin ASes announcing only one prefix: 215
LACNIC Region transit ASes present in the Internet Routing Table: 124
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 24291840
Equivalent to 1 /8s, 114 /16s and 170 /24s
Percentage of available LACNIC address space announced: 36.2
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: 1841
Total AfriNIC prefixes after maximum aggregation: 864
Prefixes being announced from the AfriNIC address blocks: 1201
Unique aggregates announced from the AfriNIC address blocks: 850
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: 24
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 3013888
Equivalent to 0 /8s, 45 /16s and 253 /24s
Percentage of available AfriNIC address space announced: 9.0
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 975 6450 206 CHINANET-BACKBONE
9583 839 109 15 Sify Limited
4755 781 258 63 Videsh Sanchar Nigam Ltd. Aut
4766 717 3929 301 Korea Telecom (KIX)
1221 667 1364 473 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
9498 507 211 69 BHARTI BT INTERNET LTD.
17676 477 6901 102 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9443 399 89 85 Primus Telecommunications
4802 356 74 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 334 217 50 China Netcom Corp.
7474 329 227 227 SingTel Optus Pty Ltd
18101 326 68 23 Reliance Infocom Ltd Internet
17974 314 73 36 PT TELEKOMUNIKASI INDONESIA
17557 310 25 161 Pakistan Telecom
4780 283 226 16 Digital United Inc.
9837 271 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 1476 6297 961 AT&T WorldNet Services
4323 1204 723 235 Time Warner Telecom
174 1043 5825 960 Cogent Communications
721 1031 21938 308 DLA Systems Automation Center
6197 968 436 505 BellSouth Network Solutions,
701 965 8099 810 UUNET Technologies, Inc.
18566 891 272 8 Covad Communications
2386 875 499 683 AT&T Data Communications Serv
1239 852 2805 607 Sprint
20115 658 537 340 Charter Communications
209 655 3603 523 Qwest
11492 643 89 12 Cable One
22773 607 1478 33 Cox Communications, Inc.
19262 596 1703 146 Verizon Global Networks
855 571 243 65 Canadian Research Network
852 569 1092 378 Telus Advanced Communications
19916 563 49 54 OLM LLC
6478 529 1455 292 AT&T Worldnet Services
3602 519 127 105 Sprint Canada, Inc.
3356 517 10601 397 Level 3 Communications, LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 586 1953 464 UUNET - Commercial IP service
3352 303 1500 34 Ibernet, Internet Access Netw
3301 302 1071 288 TeliaNet Sweden
3320 285 3485 239 Deutsche Telekom AG
8220 274 474 268 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 227 487 217 Song Networks
8708 222 274 206 Romania Data Systems S.A.
6746 212 52 184 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
8866 174 37 11 Bulgarian Telecommunication C
786 173 1794 173 The JANET IP Service
5400 167 328 137 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
3215 164 1334 80 France Telecom Transpac
6830 161 669 33 UPC Distribution Services
3300 160 169 91 AUCS Communications Services
12479 156 322 5 Uni2 Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 552 968 213 UniNet S.A. de C.V.
22047 379 141 44 VTR PUNTO NET S.A.
11172 295 109 75 Servicios Alestra S.A de C.V
16814 295 18 7 NSS, S.A.
13999 191 52 13 Mega Cable S.A. de C.V.
14117 184 11 6 Telefonica del Sur S.A.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 124 8 30 Telconet
10481 121 48 8 Prima S.A.
6503 117 148 78 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 108 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.
19429 93 50 47 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 275 818 232 The Internet Solution
8452 146 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
24835 69 34 6 RAYA Telecom - Egypt
6713 68 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 35 8 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 1204 969 Time Warner Telecom
18566 891 883 Covad Communications
9583 839 824 Sify Limited
4134 975 769 CHINANET-BACKBONE
721 1031 723 DLA Systems Automation Center
4755 781 718 Videsh Sanchar Nigam Ltd. Aut
11492 643 631 Cable One
22773 607 574 Cox Communications, Inc.
19916 563 509 OLM LLC
855 571 506 Canadian Research Network
5668 515 491 CenturyTel Internet Holdings,
6197 968 463 BellSouth Network Solutions,
19262 596 450 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
9498 507 438 BHARTI BT INTERNET LTD.
17488 436 427 Hathway IP Over Cable Interne
4766 717 416 Korea Telecom (KIX)
3602 519 414 Sprint Canada, Inc.
17676 477 375 Softbank BB Corp.
6467 397 353 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 /14:346 /15:678 /16:8653 /17:2959 /18:4969
/19:11202 /20:12345 /21:10589 /22:13647 /23:14837 /24:96988
/25:307 /26:251 /27:202 /28:61 /29:23 /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 781 968 BellSouth Network Solutions,
7018 747 1476 AT&T WorldNet Services
9583 660 839 Sify Limited
11492 634 643 Cable One
2386 609 875 AT&T Data Communications Serv
4323 578 1204 Time Warner Telecom
19916 557 563 OLM LLC
4766 517 717 Korea Telecom (KIX)
855 443 571 Canadian Research Network
5668 404 515 CenturyTel Internet Holdings,
7011 400 466 Citizens Utilities
702 371 586 UUNET - Commercial IP service
1239 365 852 Sprint
6198 358 493 BellSouth Network Solutions,
6517 335 362 Yipes Communications, Inc.
15270 332 359 PaeTec.net -a division of Pae
22773 314 607 Cox Communications, Inc.
13609 290 332 Choice One Communications Inc
701 276 965 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:44 12:1629 13:1 15:11 16:3
17:3 18:4 20:42 24:717 25:1 32:67
38:187 40:54 44:3 47:3 52:4 55:1
56:3 57:34 58:115 59:157 60:179 61:813
62:754 63:1884 64:2949 65:2162 66:2984 67:586
68:694 69:1373 70:274 71:50 72:568 73:20
80:726 81:596 82:502 83:349 84:338 85:425
86:267 87:135 88:17 89:3 124:1 125:182
128:150 129:173 130:102 131:310 132:34 133:7
134:151 135:46 136:169 137:65 138:178 139:89
140:445 141:136 142:412 143:144 144:230 145:39
146:311 147:134 148:325 149:187 150:113 151:72
152:114 153:99 154:6 155:184 156:91 157:119
158:153 159:176 160:87 161:68 162:250 163:176
164:169 165:171 166:147 167:238 168:478 169:139
170:305 171:12 192:5753 193:3354 194:2468 195:1722
196:727 198:3907 199:3275 200:4196 201:553 202:6404
203:6707 204:3856 205:2077 206:2426 207:2918 208:2018
209:3450 210:1840 211:782 212:1246 213:1425 214:320
215:40 216:3769 217:1149 218:231 219:135 220:640
221:334 222:145
End of report
