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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 13 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 174719
Prefixes after maximum aggregation: 98757
Unique aggregates announced to Internet: 84483
Total ASes present in the Internet Routing Table: 20867
Origin-only ASes present in the Internet Routing Table: 18155
Origin ASes announcing only one prefix: 8603
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: 2
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1458579616
Equivalent to 86 /8s, 240 /16s and 40 /24s
Percentage of available address space announced: 39.4
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84035
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36282
Total APNIC prefixes after maximum aggregation: 15811
Prefixes being announced from the APNIC address blocks: 34062
Unique aggregates announced from the APNIC address blocks: 16763
APNIC Region origin ASes present in the Internet Routing Table: 2396
APNIC Region origin ASes announcing only one prefix: 702
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 205763264
Equivalent to 12 /8s, 67 /16s and 178 /24s
Percentage of available APNIC address space announced: 76.4
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: 92818
Total ARIN prefixes after maximum aggregation: 55849
Prefixes being announced from the ARIN address blocks: 72376
Unique aggregates announced from the ARIN address blocks: 27365
ARIN Region origin ASes present in the Internet Routing Table: 10322
ARIN Region origin ASes announcing only one prefix: 3832
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 274761472
Equivalent to 16 /8s, 96 /16s and 135 /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: 33961
Total RIPE prefixes after maximum aggregation: 22971
Prefixes being announced from the RIPE address blocks: 30960
Unique aggregates announced from the RIPE address blocks: 20755
RIPE Region origin ASes present in the Internet Routing Table: 7283
RIPE Region origin ASes announcing only one prefix: 3815
RIPE Region transit ASes present in the Internet Routing Table: 1204
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 222779392
Equivalent to 13 /8s, 71 /16s and 88 /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: 9838
Total LACNIC prefixes after maximum aggregation: 3284
Prefixes being announced from the LACNIC address blocks: 8143
Unique aggregates announced from the LACNIC address blocks: 4746
LACNIC Region origin ASes present in the Internet Routing Table: 650
LACNIC Region origin ASes announcing only one prefix: 210
LACNIC Region transit ASes present in the Internet Routing Table: 119
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22726656
Equivalent to 1 /8s, 90 /16s and 200 /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: 1813
Total AfriNIC prefixes after maximum aggregation: 842
Prefixes being announced from the AfriNIC address blocks: 1139
Unique aggregates announced from the AfriNIC address blocks: 831
AfriNIC Region origin ASes present in the Internet Routing Table: 142
AfriNIC Region origin ASes announcing only one prefix: 44
AfriNIC Region transit ASes present in the Internet Routing Table: 20
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2864384
Equivalent to 0 /8s, 43 /16s and 181 /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 824 77 12 Sify Limited
4755 747 259 67 Videsh Sanchar Nigam Ltd. Aut
1221 740 1342 514 Telstra Pty Ltd
4766 625 3927 285 Korea Telecom (KIX)
17676 470 6819 100 Softbank BB Corp.
9498 395 215 63 BHARTI BT INTERNET LTD.
9443 392 87 78 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
7545 341 105 38 TPG Internet Pty Ltd
2907 340 1764 317 SINET Japan
4802 335 73 153 Wantree Development
7474 333 258 229 SingTel Optus Pty Ltd
17557 333 25 162 Pakistan Telecom
9929 326 216 46 China Netcom Corp.
18302 305 141 171 SK Global co., Ltd
9837 274 79 175 Powertel Ltd
18101 269 68 19 Reliance Infocom Ltd Internet
703 256 259 209 UUNET - Commercial IP service
9800 255 396 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1476 6325 971 AT&T WorldNet Services
4323 1192 706 233 Time Warner Telecom
721 1058 21937 306 DLA Systems Automation Center
174 1051 5848 984 Cogent Communications
701 1004 8152 844 UUNET Technologies, Inc.
6197 960 407 496 BellSouth Network Solutions,
2386 930 545 695 AT&T Data Communications Serv
18566 877 240 7 Covad Communications
1239 846 2800 597 Sprint
209 659 3621 523 Qwest
20115 644 522 339 Charter Communications
11492 595 81 10 Cable One
852 573 1093 380 Telus Advanced Communications
3602 565 129 107 Sprint Canada, Inc.
19916 563 49 54 OLM LLC
855 555 247 65 Canadian Research Network
22773 555 1472 28 Cox Communications, Inc.
19262 538 1556 134 Verizon Global Networks
3356 521 10634 401 Level 3 Communications, LLC
6478 492 1300 275 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 609 1959 478 UUNET - Commercial IP service
3301 305 1085 291 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 270 475 265 COLT Telecommunications
680 244 2040 239 DFN-IP service G-WiN
8708 234 274 220 Romania Data Systems S.A.
3246 229 477 222 Song Networks
6746 201 51 172 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
3300 160 170 92 AUCS Communications Services
8866 159 37 9 Bulgarian Telecommunication C
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 386 690 164 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 204 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 129 52 9 Mega Cable S.A. de C.V.
19169 125 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.
14522 102 12 8 SatNet S.A.
11311 99 8 10 Sinectis S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 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 60 16 2 Noor Advanced Technologies AS
24835 57 34 6 RAYA Telecom - Egypt
5713 38 151 34 Telkom SA Ltd
12455 33 6 3 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 21 5 9 MAURITIUS TELECOM
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 1192 959 Time Warner Telecom
18566 877 870 Covad Communications
9583 824 812 Sify Limited
4134 1003 789 CHINANET-BACKBONE
721 1058 752 DLA Systems Automation Center
4755 747 680 Videsh Sanchar Nigam Ltd. Aut
11492 595 585 Cable One
22773 555 527 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 471 445 CenturyTel Internet Holdings,
19262 538 404 Verizon Global Networks
17676 470 370 Softbank BB Corp.
17488 366 356 Hathway IP Over Cable Interne
6467 401 354 E.Spire Communications, Inc.
812 368 343 Rogers WAVE
4766 625 340 Korea Telecom (KIX)
9498 395 332 BHARTI BT INTERNET LTD.
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
65003 PRIVATE 57.250.244.0/24 13879 SITA-EQUANT
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
/13:186 /14:340 /15:663 /16:8595 /17:2868 /18:4839
/19:10996 /20:12096 /21:10131 /22:13416 /23:14603 /24:94925
/25:339 /26:287 /27:192 /28:33 /29:12 /30:38
/31:3 /32:29
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 861 877 Covad Communications
6197 782 960 BellSouth Network Solutions,
7018 725 1476 AT&T WorldNet Services
9583 646 824 Sify Limited
2386 643 930 AT&T Data Communications Serv
11492 587 595 Cable One
4323 570 1192 Time Warner Telecom
19916 557 563 OLM LLC
4766 431 625 Korea Telecom (KIX)
855 427 555 Canadian Research Network
7011 394 456 Citizens Utilities
702 390 609 UUNET - Commercial IP service
5668 373 471 CenturyTel Internet Holdings,
1239 366 846 Sprint
6198 353 483 BellSouth Network Solutions,
6517 324 350 Yipes Communications, Inc.
15270 315 342 PaeTec.net -a division of Pae
13609 297 339 Choice One Communications Inc
18302 289 305 SK Global co., Ltd
701 283 1004 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:32 12:1617 13:1 15:10 16:3
17:3 18:3 20:41 24:703 30:2 32:64
38:178 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:100 59:91 60:147 61:786
62:809 63:1891 64:2965 65:2136 66:2918 67:692
68:661 69:1318 70:223 71:41 72:442 80:664
81:591 82:488 83:317 84:301 85:365 86:183
87:88 125:40 128:153 129:169 130:95 131:308
132:35 133:1 134:148 135:45 136:167 137:69
138:171 139:71 140:439 141:142 142:399 143:145
144:220 145:34 146:299 147:131 148:266 149:194
150:107 151:70 152:110 153:94 154:5 155:144
156:82 157:117 158:148 159:178 160:86 161:74
162:235 163:147 164:190 165:186 166:146 167:246
168:453 169:144 170:312 171:12 190:1 192:5724
193:3349 194:2428 195:1617 196:703 198:3910 199:3225
200:4262 201:437 202:6210 203:6489 204:3823 205:2068
206:2434 207:2901 208:2015 209:3499 210:1760 211:844
212:1208 213:1363 214:310 215:40 216:3859 217:1152
218:214 219:128 220:523 221:308 222:114
End of report
