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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 30 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175900
Prefixes after maximum aggregation: 99149
Unique aggregates announced to Internet: 83192
Total ASes present in the Internet Routing Table: 21014
Origin-only ASes present in the Internet Routing Table: 18286
Origin ASes announcing only one prefix: 8659
Transit ASes present in the Internet Routing Table: 2728
Transit-only ASes present in the Internet Routing Table: 72
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: 3
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1471028096
Equivalent to 87 /8s, 174 /16s and 27 /24s
Percentage of available address space announced: 39.7
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84426
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36803
Total APNIC prefixes after maximum aggregation: 15840
Prefixes being announced from the APNIC address blocks: 34559
Unique aggregates announced from the APNIC address blocks: 16858
APNIC Region origin ASes present in the Internet Routing Table: 2415
APNIC Region origin ASes announcing only one prefix: 698
APNIC Region transit ASes present in the Internet Routing Table: 365
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207713472
Equivalent to 12 /8s, 97 /16s and 116 /24s
Percentage of available APNIC address space announced: 77.1
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: 92990
Total ARIN prefixes after maximum aggregation: 55949
Prefixes being announced from the ARIN address blocks: 72495
Unique aggregates announced from the ARIN address blocks: 25605
ARIN Region origin ASes present in the Internet Routing Table: 10375
ARIN Region origin ASes announcing only one prefix: 3849
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: 280378624
Equivalent to 16 /8s, 182 /16s and 61 /24s
Percentage of available ARIN address space announced: 69.6
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: 34348
Total RIPE prefixes after maximum aggregation: 23204
Prefixes being announced from the RIPE address blocks: 31278
Unique aggregates announced from the RIPE address blocks: 21007
RIPE Region origin ASes present in the Internet Routing Table: 7355
RIPE Region origin ASes announcing only one prefix: 3858
RIPE Region transit ASes present in the Internet Routing Table: 1212
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 225663232
Equivalent to 13 /8s, 115 /16s and 89 /24s
Percentage of available RIPE address space announced: 67.3
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: 9978
Total LACNIC prefixes after maximum aggregation: 3305
Prefixes being announced from the LACNIC address blocks: 8269
Unique aggregates announced from the LACNIC address blocks: 4807
LACNIC Region origin ASes present in the Internet Routing Table: 652
LACNIC Region origin ASes announcing only one prefix: 208
LACNIC Region transit ASes present in the Internet Routing Table: 122
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 22938624
Equivalent to 1 /8s, 94 /16s and 4 /24s
Percentage of available LACNIC address space announced: 34.2
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: 1775
Total AfriNIC prefixes after maximum aggregation: 851
Prefixes being announced from the AfriNIC address blocks: 1160
Unique aggregates announced from the AfriNIC address blocks: 835
AfriNIC Region origin ASes present in the Internet Routing Table: 144
AfriNIC Region origin ASes announcing only one prefix: 46
AfriNIC Region transit ASes present in the Internet Routing Table: 22
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2875136
Equivalent to 0 /8s, 43 /16s and 223 /24s
Percentage of available AfriNIC address space announced: 8.6
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 1018 6348 217 CHINANET-BACKBONE
9583 832 77 12 Sify Limited
4755 755 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 724 1342 514 Telstra Pty Ltd
4766 651 3927 287 Korea Telecom (KIX)
7545 511 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
17488 434 26 11 Hathway IP Over Cable Interne
9498 409 216 66 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
4802 341 73 156 Wantree Development
2907 339 1764 316 SINET Japan
17557 331 24 161 Pakistan Telecom
9929 330 217 48 China Netcom Corp.
7474 329 258 227 SingTel Optus Pty Ltd
18302 315 142 169 SK Global co., Ltd
9837 275 79 176 Powertel Ltd
17974 270 46 12 PT TELEKOMUNIKASI INDONESIA
18101 270 68 19 Reliance Infocom Ltd Internet
9800 257 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1464 6313 957 AT&T WorldNet Services
4323 1189 706 233 Time Warner Telecom
174 1075 5846 994 Cogent Communications
721 1065 21938 308 DLA Systems Automation Center
701 987 8134 831 UUNET Technologies, Inc.
6197 961 407 502 BellSouth Network Solutions,
2386 915 528 688 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 844 2801 598 Sprint
209 657 3607 520 Qwest
20115 654 531 345 Charter Communications
11492 632 81 10 Cable One
852 574 1093 382 Telus Advanced Communications
19262 565 1594 137 Verizon Global Networks
855 563 247 64 Canadian Research Network
19916 563 49 54 OLM LLC
22773 561 1468 25 Cox Communications, Inc.
3602 528 126 101 Sprint Canada, Inc.
3356 514 10633 401 Level 3 Communications, LLC
6478 502 1432 280 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 615 1960 483 UUNET - Commercial IP service
3301 303 1085 289 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 271 475 266 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 237 274 218 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 200 51 171 Dynamic Network Technologies,
1257 194 712 170 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 166 317 136 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 170 94 AUCS Communications Services
8866 160 37 9 Bulgarian Telecommunication C
24863 151 37 6 LINKdotNET AS number
3215 150 1275 81 France Telecom Transpac
12479 150 322 5 Uni2 Autonomous System
25186 147 209 103 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 709 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 285 104 70 Servicios Alestra S.A de C.V
11664 219 22 28 Keytech SA
19632 196 14 5 Metropolis Intercom S.A.
14117 184 11 6 Telefonica del Sur S.A.
22047 180 128 8 VTR PUNTO NET S.A.
6147 158 118 21 Telefonica Del Peru
7303 152 72 19 Telecom Argentina Stet-France
13999 140 52 9 Mega Cable S.A. de C.V.
11556 130 64 3 Cable-Wireless Panama
19169 127 8 20 Telconet
10481 121 48 8 Prima S.A.
18822 114 8 11 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 111 12 9 Telecommunications Services o
6503 111 148 72 AVANTEL, S.A.
6505 107 88 80 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
14522 94 12 8 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 270 812 229 The Internet Solution
8452 145 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 74 155 67 The Internetworking Company o
6713 67 71 10 Itissalat Al-MAGHRIB
20928 61 16 2 Noor Advanced Technologies AS
24835 59 34 6 RAYA Telecom - Egypt
15475 56 84 4 Nile Online
5713 38 151 34 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
23889 23 5 9 MAURITIUS TELECOM
10798 22 1 13 Standard Bank of South Africa
21280 21 4 4 Swift Global Kenya Ltd.Is an
12258 17 3 11 Vodacom Internet Company
15808 17 2 2 Communication Solutions Ltd i
21491 17 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1189 956 Time Warner Telecom
18566 878 871 Covad Communications
9583 832 820 Sify Limited
4134 1018 801 CHINANET-BACKBONE
721 1065 757 DLA Systems Automation Center
4755 755 686 Videsh Sanchar Nigam Ltd. Aut
11492 632 622 Cable One
22773 561 536 Cox Communications, Inc.
19916 563 509 OLM LLC
855 563 499 Canadian Research Network
6197 961 459 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 511 440 TPG Internet Pty Ltd
19262 565 428 Verizon Global Networks
3602 528 427 Sprint Canada, Inc.
17488 434 423 Hathway IP Over Cable Interne
17676 470 370 Softbank BB Corp.
4766 651 364 Korea Telecom (KIX)
6467 401 353 E.Spire Communications, Inc.
9498 409 343 BHARTI BT INTERNET LTD.
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
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 /8:20 /9:5 /10:8 /11:17 /12:84
/13:190 /14:343 /15:668 /16:8607 /17:2898 /18:4887
/19:11056 /20:12208 /21:10244 /22:13502 /23:14618 /24:95601
/25:348 /26:295 /27:202 /28:25 /29:12 /30:29
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 782 961 BellSouth Network Solutions,
7018 720 1464 AT&T WorldNet Services
9583 655 832 Sify Limited
2386 642 915 AT&T Data Communications Serv
11492 624 632 Cable One
4323 569 1189 Time Warner Telecom
19916 557 563 OLM LLC
4766 456 651 Korea Telecom (KIX)
855 436 563 Canadian Research Network
7011 399 462 Citizens Utilities
702 394 615 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 844 Sprint
6198 355 493 BellSouth Network Solutions,
6517 321 346 Yipes Communications, Inc.
15270 318 345 PaeTec.net -a division of Pae
18302 299 315 SK Global co., Ltd
13609 298 340 Choice One Communications Inc
701 286 987 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:38 12:1622 13:1 15:11 16:3
17:3 18:3 20:42 24:677 30:2 32:64
38:184 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:89 59:95 60:155 61:803
62:800 63:1898 64:2915 65:2129 66:2946 67:639
68:685 69:1314 70:240 71:36 72:471 80:692
81:583 82:482 83:322 84:334 85:372 86:211
87:103 125:128 128:150 129:170 130:98 131:301
132:33 133:1 134:151 135:45 136:167 137:69
138:174 139:75 140:444 141:146 142:402 143:144
144:218 145:34 146:304 147:131 148:271 149:186
150:108 151:73 152:111 153:94 154:5 155:152
156:87 157:118 158:147 159:175 160:85 161:71
162:241 163:160 164:189 165:185 166:146 167:244
168:459 169:143 170:313 171:12 192:5763 193:3357
194:2436 195:1627 196:720 198:3916 199:3249 200:4303
201:457 202:6290 203:6594 204:3837 205:2081 206:2426
207:2928 208:2032 209:3510 210:1778 211:798 212:1205
213:1377 214:315 215:39 216:3849 217:1158 218:221
219:128 220:535 221:320 222:122
End of report
