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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 14 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 174943
Prefixes after maximum aggregation: 98803
Unique aggregates announced to Internet: 84515
Total ASes present in the Internet Routing Table: 20873
Origin-only ASes present in the Internet Routing Table: 18157
Origin ASes announcing only one prefix: 8604
Transit ASes present in the Internet Routing Table: 2716
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: 1458536864
Equivalent to 86 /8s, 239 /16s and 129 /24s
Percentage of available address space announced: 39.4
Percentage of allocated address space announced: 59.2
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84149
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36459
Total APNIC prefixes after maximum aggregation: 15825
Prefixes being announced from the APNIC address blocks: 34234
Unique aggregates announced from the APNIC address blocks: 16784
APNIC Region origin ASes present in the Internet Routing Table: 2399
APNIC Region origin ASes announcing only one prefix: 700
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: 205706176
Equivalent to 12 /8s, 66 /16s and 211 /24s
Percentage of available APNIC address space announced: 76.3
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: 92916
Total ARIN prefixes after maximum aggregation: 55885
Prefixes being announced from the ARIN address blocks: 72410
Unique aggregates announced from the ARIN address blocks: 27372
ARIN Region origin ASes present in the Internet Routing Table: 10325
ARIN Region origin ASes announcing only one prefix: 3835
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: 274767616
Equivalent to 16 /8s, 96 /16s and 159 /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: 33972
Total RIPE prefixes after maximum aggregation: 22973
Prefixes being announced from the RIPE address blocks: 30969
Unique aggregates announced from the RIPE address blocks: 20751
RIPE Region origin ASes present in the Internet Routing Table: 7286
RIPE Region origin ASes announcing only one prefix: 3816
RIPE Region transit ASes present in the Internet Routing Table: 1206
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 222651136
Equivalent to 13 /8s, 69 /16s and 99 /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: 9779
Total LACNIC prefixes after maximum aggregation: 3279
Prefixes being announced from the LACNIC address blocks: 8084
Unique aggregates announced from the LACNIC address blocks: 4742
LACNIC Region origin ASes present in the Internet Routing Table: 647
LACNIC Region origin ASes announcing only one prefix: 209
LACNIC Region transit ASes present in the Internet Routing Table: 120
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 22705664
Equivalent to 1 /8s, 90 /16s and 118 /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: 1810
Total AfriNIC prefixes after maximum aggregation: 841
Prefixes being announced from the AfriNIC address blocks: 1137
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: 19
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 748 259 67 Videsh Sanchar Nigam Ltd. Aut
1221 740 1342 514 Telstra Pty Ltd
4766 634 3927 285 Korea Telecom (KIX)
7545 512 108 69 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 394 215 63 BHARTI BT INTERNET LTD.
9443 392 87 78 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
2907 340 1764 317 SINET Japan
7474 333 258 229 SingTel Optus Pty Ltd
17557 332 24 161 Pakistan Telecom
9929 326 216 46 China Netcom Corp.
18302 305 141 171 SK Global co., Ltd
4802 292 52 131 Wantree Development
9837 274 79 175 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 269 68 19 Reliance Infocom Ltd Internet
9800 255 396 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1477 6325 971 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
721 1072 21937 307 DLA Systems Automation Center
174 1050 5848 983 Cogent Communications
701 1005 8152 845 UUNET Technologies, Inc.
6197 959 407 496 BellSouth Network Solutions,
2386 930 545 695 AT&T Data Communications Serv
18566 877 240 7 Covad Communications
1239 848 2801 599 Sprint
209 659 3621 523 Qwest
20115 642 522 338 Charter Communications
11492 595 81 10 Cable One
852 573 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 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 139 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 29 3 20 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 1191 958 Time Warner Telecom
18566 877 870 Covad Communications
9583 824 812 Sify Limited
4134 1003 789 CHINANET-BACKBONE
721 1072 765 DLA Systems Automation Center
4755 748 681 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 959 463 BellSouth Network Solutions,
3602 565 458 Sprint Canada, Inc.
5668 471 445 CenturyTel Internet Holdings,
7545 512 443 TPG Internet Pty Ltd
19262 538 404 Verizon Global Networks
17676 470 370 Softbank BB Corp.
6467 408 361 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
4766 634 349 Korea Telecom (KIX)
812 368 343 Rogers WAVE
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 /16:8594 /17:2869 /18:4837
/19:10997 /20:12103 /21:10139 /22:13440 /23:14625 /24:95105
/25:338 /26:286 /27:190 /28:32 /29:12 /30:37
/31:3 /32:19
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 861 877 Covad Communications
6197 781 959 BellSouth Network Solutions,
7018 726 1477 AT&T WorldNet Services
9583 646 824 Sify Limited
2386 644 930 AT&T Data Communications Serv
11492 587 595 Cable One
4323 569 1191 Time Warner Telecom
19916 557 563 OLM LLC
4766 440 634 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 367 848 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
701 284 1005 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:32 12:1618 13:1 15:11 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 58:101 59:91 60:147 61:789
62:808 63:1890 64:2965 65:2135 66:2916 67:691
68:661 69:1319 70:223 71:40 72:444 80:665
81:591 82:488 83:318 84:298 85:364 86:183
87:88 125:41 128:156 129:168 130:95 131:308
132:35 133:1 134:148 135:45 136:167 137:69
138:173 139:71 140:438 141:142 142:399 143:145
144:220 145:34 146:296 147:131 148:265 149:194
150:108 151:82 152:111 153:94 154:5 155:145
156:82 157:117 158:148 159:178 160:87 161:76
162:254 163:148 164:190 165:186 166:146 167:247
168:454 169:144 170:314 171:12 190:1 192:5741
193:3353 194:2438 195:1619 196:704 198:3909 199:3251
200:4219 201:438 202:6228 203:6543 204:3825 205:2070
206:2445 207:2903 208:2014 209:3504 210:1772 211:844
212:1200 213:1364 214:312 215:40 216:3859 217:1152
218:214 219:128 220:530 221:308 222:128
End of report
