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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 10 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 174955
Prefixes after maximum aggregation: 98782
Unique aggregates announced to Internet: 84556
Total ASes present in the Internet Routing Table: 20872
Origin-only ASes present in the Internet Routing Table: 18160
Origin ASes announcing only one prefix: 8609
Transit ASes present in the Internet Routing Table: 2712
Transit-only ASes present in the Internet Routing Table: 74
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 21
Prefixes from unregistered ASNs in the Routing Table: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1457939136
Equivalent to 86 /8s, 230 /16s and 98 /24s
Percentage of available address space announced: 39.3
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84121
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36442
Total APNIC prefixes after maximum aggregation: 15850
Prefixes being announced from the APNIC address blocks: 34209
Unique aggregates announced from the APNIC address blocks: 16845
APNIC Region origin ASes present in the Internet Routing Table: 2393
APNIC Region origin ASes announcing only one prefix: 696
APNIC Region transit ASes present in the Internet Routing Table: 364
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 204967616
Equivalent to 12 /8s, 55 /16s and 142 /24s
Percentage of available APNIC address space announced: 76.1
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, 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: 92889
Total ARIN prefixes after maximum aggregation: 55845
Prefixes being announced from the ARIN address blocks: 72401
Unique aggregates announced from the ARIN address blocks: 27346
ARIN Region origin ASes present in the Internet Routing Table: 10329
ARIN Region origin ASes announcing only one prefix: 3834
ARIN Region transit ASes present in the Internet Routing Table: 966
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 274700544
Equivalent to 16 /8s, 95 /16s and 153 /24s
Percentage of available ARIN address space announced: 68.2
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: 33999
Total RIPE prefixes after maximum aggregation: 22957
Prefixes being announced from the RIPE address blocks: 30996
Unique aggregates announced from the RIPE address blocks: 20767
RIPE Region origin ASes present in the Internet Routing Table: 7287
RIPE Region origin ASes announcing only one prefix: 3825
RIPE Region transit ASes present in the Internet Routing Table: 1203
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 222639392
Equivalent to 13 /8s, 69 /16s and 53 /24s
Percentage of available RIPE address space announced: 66.4
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: 9803
Total LACNIC prefixes after maximum aggregation: 3284
Prefixes being announced from the LACNIC address blocks: 8103
Unique aggregates announced from the LACNIC address blocks: 4727
LACNIC Region origin ASes present in the Internet Routing Table: 648
LACNIC Region origin ASes announcing only one prefix: 211
LACNIC Region transit ASes present in the Internet Routing Table: 123
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22715904
Equivalent to 1 /8s, 90 /16s and 158 /24s
Percentage of available LACNIC address space announced: 33.8
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: 1814
Total AfriNIC prefixes after maximum aggregation: 846
Prefixes being announced from the AfriNIC address blocks: 1135
Unique aggregates announced from the AfriNIC address blocks: 834
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 43
AfriNIC Region transit ASes present in the Internet Routing Table: 18
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2859008
Equivalent to 0 /8s, 43 /16s and 160 /24s
Percentage of available AfriNIC address space announced: 8.5
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 1003 6327 214 CHINANET-BACKBONE
9583 820 77 12 Sify Limited
4755 748 259 67 Videsh Sanchar Nigam Ltd. Aut
1221 745 1342 514 Telstra Pty Ltd
4766 627 3927 287 Korea Telecom (KIX)
7545 513 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9443 392 87 78 Primus Telecommunications
9498 388 211 58 BHARTI BT INTERNET LTD.
17488 366 22 10 Hathway IP Over Cable Interne
2907 340 1764 317 SINET Japan
4802 335 73 153 Wantree Development
17557 334 25 163 Pakistan Telecom
7474 333 258 229 SingTel Optus Pty Ltd
9929 326 216 46 China Netcom Corp.
18302 304 141 170 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 269 68 19 Reliance Infocom Ltd Internet
703 254 259 208 UUNET - Commercial IP service
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1486 6325 972 AT&T WorldNet Services
4323 1194 706 233 Time Warner Telecom
721 1073 21938 308 DLA Systems Automation Center
174 1050 5846 983 Cogent Communications
701 1007 8154 847 UUNET Technologies, Inc.
6197 960 407 496 BellSouth Network Solutions,
2386 931 546 695 AT&T Data Communications Serv
18566 874 240 7 Covad Communications
1239 844 2832 594 Sprint
209 655 3605 521 Qwest
20115 643 522 338 Charter Communications
11492 592 81 11 Cable One
852 574 1093 381 Telus Advanced Communications
3602 565 129 107 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
855 555 247 65 Canadian Research Network
22773 554 1472 27 Cox Communications, Inc.
19262 535 1551 132 Verizon Global Networks
3356 523 10638 403 Level 3 Communications, LLC
6478 494 1300 275 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 610 1960 478 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 236 274 222 Romania Data Systems S.A.
3246 228 475 221 Song Networks
6746 200 51 171 Dynamic Network Technologies,
1257 191 712 169 SWIPnet Swedish IP Network
5515 182 840 128 Sonera Solution Autonomous Sy
3269 180 1765 68 TELECOM ITALIA
786 174 1795 174 The JANET IP Service
5400 161 316 134 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
8866 158 37 9 Bulgarian Telecommunication C
3300 157 170 91 AUCS Communications Services
12479 150 322 5 Uni2 Autonomous System
24863 148 37 6 LINKdotNET AS number
25186 148 211 104 France Telecom Transpac's Tra
3215 144 1237 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 387 690 167 UniNet S.A. de C.V.
16814 296 18 7 NSS, S.A.
11172 283 88 68 Servicios Alestra S.A de C.V
11664 201 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 171 128 7 VTR PUNTO NET S.A.
6147 161 118 21 Telefonica Del Peru
7303 146 69 15 Telecom Argentina Stet-France
11556 130 64 3 Cable-Wireless Panama
13999 128 52 9 Mega Cable S.A. de C.V.
19169 124 8 26 Telconet
6505 121 89 85 Global One Communicaoes Ltda
10481 121 48 8 Prima S.A.
18822 112 7 13 TELEFONICA MANQUEHUE
5639 111 12 9 Telecommunications Services o
21826 111 14 19 INTERCABLE
6503 109 148 76 AVANTEL, S.A.
11311 99 8 10 Sinectis S.A.
23216 92 23 12 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 708 228 The Internet Solution
8452 138 44 7 TEDATA
5536 123 8 12 Internet Egypt Network
2018 116 298 103 Tertiary Education Network
15475 82 84 4 Nile Online
2905 78 211 71 The Internetworking Company o
6713 70 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 57 34 6 RAYA Telecom - Egypt
5713 37 149 33 Telkom SA Ltd
12455 32 6 6 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 31 3 22 AS Number for Telecom Algeria
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
23889 20 5 9 MAURITIUS TELECOM
12258 17 3 11 Vodacom Internet Company
15804 17 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1194 961 Time Warner Telecom
18566 874 867 Covad Communications
9583 820 808 Sify Limited
4134 1003 789 CHINANET-BACKBONE
721 1073 765 DLA Systems Automation Center
4755 748 681 Videsh Sanchar Nigam Ltd. Aut
11492 592 581 Cable One
22773 554 527 Cox Communications, Inc.
19916 563 509 OLM LLC
855 555 490 Canadian Research Network
6197 960 464 BellSouth Network Solutions,
3602 565 458 Sprint Canada, Inc.
5668 472 446 CenturyTel Internet Holdings,
7545 513 442 TPG Internet Pty Ltd
19262 535 403 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 366 356 Hathway IP Over Cable Interne
6467 399 351 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
4766 627 340 Korea Telecom (KIX)
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
65108 PRIVATE 193.202.224.0/20 4589 Easynet Group
24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp.
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 /11:17 /12:80
/13:185 /14:339 /15:659 /16:8605 /17:2868 /18:4838
/19:11003 /20:12097 /21:10142 /22:13421 /23:14607 /24:95128
/25:334 /26:290 /27:198 /28:32 /29:11 /30:38
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 858 874 Covad Communications
6197 782 960 BellSouth Network Solutions,
7018 729 1486 AT&T WorldNet Services
2386 644 931 AT&T Data Communications Serv
9583 643 820 Sify Limited
11492 584 592 Cable One
4323 571 1194 Time Warner Telecom
19916 557 563 OLM LLC
4766 433 627 Korea Telecom (KIX)
855 427 555 Canadian Research Network
7011 397 457 Citizens Utilities
702 390 610 UUNET - Commercial IP service
5668 374 472 CenturyTel Internet Holdings,
1239 360 844 Sprint
6198 353 482 BellSouth Network Solutions,
6517 324 350 Yipes Communications, Inc.
15270 315 342 PaeTec.net -a division of Pae
13609 292 334 Choice One Communications Inc
18302 288 304 SK Global co., Ltd
701 284 1007 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:29 12:1615 13:1 15:11 16:3
17:3 18:3 20:41 24:696 30:2 32:68
38:177 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:100 59:92 60:147 61:787
62:811 63:1891 64:2967 65:2127 66:2934 67:677
68:659 69:1320 70:227 71:40 72:445 80:662
81:597 82:491 83:311 84:298 85:366 86:176
87:88 125:38 128:157 129:167 130:95 131:308
132:35 133:1 134:148 135:40 136:172 137:70
138:172 139:71 140:438 141:142 142:399 143:144
144:220 145:34 146:298 147:131 148:266 149:197
150:109 151:70 152:111 153:94 154:5 155:144
156:81 157:117 158:147 159:178 160:87 161:76
162:236 163:148 164:190 165:185 166:154 167:249
168:456 169:144 170:312 171:12 190:1 192:5744
193:3346 194:2448 195:1645 196:698 198:3917 199:3255
200:4249 201:422 202:6219 203:6562 204:3825 205:2055
206:2447 207:2891 208:2021 209:3489 210:1752 211:843
212:1218 213:1363 214:310 215:41 216:3889 217:1161
218:213 219:129 220:525 221:307 222:127
End of report
