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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 23 Nov, 2005
Analysis Summary
----------------
BGP routing table entries examined: 175306
Prefixes after maximum aggregation: 99020
Unique aggregates announced to Internet: 85014
Total ASes present in the Internet Routing Table: 20963
Origin-only ASes present in the Internet Routing Table: 18243
Origin ASes announcing only one prefix: 8635
Transit ASes present in the Internet Routing Table: 2720
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: 25
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: 1463469440
Equivalent to 87 /8s, 58 /16s and 197 /24s
Percentage of available address space announced: 39.5
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 84028
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 36488
Total APNIC prefixes after maximum aggregation: 15870
Prefixes being announced from the APNIC address blocks: 34256
Unique aggregates announced from the APNIC address blocks: 16915
APNIC Region origin ASes present in the Internet Routing Table: 2408
APNIC Region origin ASes announcing only one prefix: 706
APNIC Region transit ASes present in the Internet Routing Table: 367
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 207212480
Equivalent to 12 /8s, 89 /16s and 207 /24s
Percentage of available APNIC address space announced: 76.9
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, 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: 92876
Total ARIN prefixes after maximum aggregation: 55907
Prefixes being announced from the ARIN address blocks: 72394
Unique aggregates announced from the ARIN address blocks: 27507
ARIN Region origin ASes present in the Internet Routing Table: 10365
ARIN Region origin ASes announcing only one prefix: 3843
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: 276652544
Equivalent to 16 /8s, 125 /16s and 98 /24s
Percentage of available ARIN address space announced: 68.7
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: 34184
Total RIPE prefixes after maximum aggregation: 23106
Prefixes being announced from the RIPE address blocks: 31147
Unique aggregates announced from the RIPE address blocks: 20893
RIPE Region origin ASes present in the Internet Routing Table: 7325
RIPE Region origin ASes announcing only one prefix: 3835
RIPE Region transit ASes present in the Internet Routing Table: 1204
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 224222464
Equivalent to 13 /8s, 93 /16s and 93 /24s
Percentage of available RIPE address space announced: 66.8
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: 9954
Total LACNIC prefixes after maximum aggregation: 3289
Prefixes being announced from the LACNIC address blocks: 8250
Unique aggregates announced from the LACNIC address blocks: 4800
LACNIC Region origin ASes present in the Internet Routing Table: 649
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: 22827520
Equivalent to 1 /8s, 92 /16s and 82 /24s
Percentage of available LACNIC address space announced: 34.0
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: 1797
Total AfriNIC prefixes after maximum aggregation: 848
Prefixes being announced from the AfriNIC address blocks: 1156
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: 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: 2866944
Equivalent to 0 /8s, 43 /16s and 191 /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 1026 6348 216 CHINANET-BACKBONE
4755 751 259 69 Videsh Sanchar Nigam Ltd. Aut
1221 738 1342 512 Telstra Pty Ltd
9583 688 74 61 Sify Limited
4766 648 3927 287 Korea Telecom (KIX)
7545 513 108 71 TPG Internet Pty Ltd
17676 470 6819 100 Softbank BB Corp.
9498 399 215 62 BHARTI BT INTERNET LTD.
9443 394 87 80 Primus Telecommunications
17488 366 22 10 Hathway IP Over Cable Interne
4802 342 73 158 Wantree Development
2907 340 1764 317 SINET Japan
7474 332 258 228 SingTel Optus Pty Ltd
17557 332 24 161 Pakistan Telecom
9929 329 217 48 China Netcom Corp.
18302 307 141 171 SK Global co., Ltd
9837 276 79 177 Powertel Ltd
17974 272 65 16 PT TELEKOMUNIKASI INDONESIA
18101 271 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 1483 6317 962 AT&T WorldNet Services
4323 1191 706 233 Time Warner Telecom
174 1080 5847 999 Cogent Communications
721 1070 21938 308 DLA Systems Automation Center
701 988 8136 833 UUNET Technologies, Inc.
6197 963 407 496 BellSouth Network Solutions,
2386 915 528 688 AT&T Data Communications Serv
18566 878 240 7 Covad Communications
1239 845 2800 595 Sprint
209 657 3621 520 Qwest
20115 652 531 344 Charter Communications
11492 629 81 10 Cable One
852 573 1093 381 Telus Advanced Communications
19916 563 49 54 OLM LLC
19262 562 1585 135 Verizon Global Networks
855 557 247 64 Canadian Research Network
22773 556 1468 25 Cox Communications, Inc.
3602 542 126 103 Sprint Canada, Inc.
3356 518 10633 404 Level 3 Communications, LLC
6478 495 1427 276 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 613 1960 482 UUNET - Commercial IP service
3301 304 1101 290 TeliaNet Sweden
3320 285 3230 240 Deutsche Telekom AG
8220 269 475 264 COLT Telecommunications
680 245 2040 239 DFN-IP service G-WiN
8708 235 275 221 Romania Data Systems S.A.
3246 230 477 223 Song Networks
6746 202 51 173 Dynamic Network Technologies,
1257 194 712 171 SWIPnet Swedish IP Network
3269 182 1829 68 TELECOM ITALIA
5515 182 840 128 Sonera Solution Autonomous Sy
786 174 1795 174 The JANET IP Service
5400 165 317 135 BT Ignite European Backbone
6830 161 669 33 UPC Distribution Services
3300 160 185 94 AUCS Communications Services
8866 157 37 9 Bulgarian Telecommunication C
24863 152 37 6 LINKdotNET AS number
12479 150 322 5 Uni2 Autonomous System
25186 148 211 104 France Telecom Transpac's Tra
3215 147 1269 78 France Telecom Transpac
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 396 708 169 UniNet S.A. de C.V.
16814 295 18 7 NSS, S.A.
11172 282 104 70 Servicios Alestra S.A de C.V
11664 221 22 29 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 152 72 19 Telecom Argentina Stet-France
13999 141 52 9 Mega Cable S.A. de C.V.
11556 129 64 2 Cable-Wireless Panama
19169 128 8 20 Telconet
10481 121 48 8 Prima S.A.
6505 120 89 85 Global One Communicaoes Ltda
6503 113 148 74 AVANTEL, S.A.
18822 113 7 10 TELEFONICA MANQUEHUE
21826 112 14 18 INTERCABLE
5639 108 12 9 Telecommunications Services o
11311 99 8 10 Sinectis S.A.
23216 93 23 11 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 708 228 The Internet Solution
8452 145 44 7 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
2905 78 211 71 The Internetworking Company o
6713 70 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
12455 34 6 3 Jambonet Autonomous system
15706 31 8 3 Sudatel Internet Exchange Aut
33774 28 3 19 AS Number for Telecom Algeria
8524 23 1 4 AUCEGYPT Autonomous System
16637 23 10 21 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
23889 22 5 9 MAURITIUS TELECOM
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
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1191 958 Time Warner Telecom
18566 878 871 Covad Communications
4134 1026 810 CHINANET-BACKBONE
721 1070 762 DLA Systems Automation Center
4755 751 682 Videsh Sanchar Nigam Ltd. Aut
9583 688 627 Sify Limited
11492 629 619 Cable One
22773 556 531 Cox Communications, Inc.
19916 563 509 OLM LLC
855 557 493 Canadian Research Network
6197 963 467 BellSouth Network Solutions,
5668 476 450 CenturyTel Internet Holdings,
7545 513 442 TPG Internet Pty Ltd
3602 542 439 Sprint Canada, Inc.
19262 562 427 Verizon Global Networks
17676 470 370 Softbank BB Corp.
4766 648 361 Korea Telecom (KIX)
6467 406 359 E.Spire Communications, Inc.
17488 366 356 Hathway IP Over Cable Interne
9498 399 337 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 /12:82
/13:187 /14:341 /15:665 /16:8595 /17:2878 /18:4872
/19:11035 /20:12146 /21:10210 /22:13486 /23:14608 /24:95212
/25:341 /26:292 /27:202 /28:26 /29:12 /30:35
/31:3 /32:30
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 862 878 Covad Communications
6197 785 963 BellSouth Network Solutions,
7018 731 1483 AT&T WorldNet Services
2386 642 915 AT&T Data Communications Serv
11492 621 629 Cable One
4323 570 1191 Time Warner Telecom
19916 557 563 OLM LLC
9583 544 688 Sify Limited
4766 454 648 Korea Telecom (KIX)
855 430 557 Canadian Research Network
7011 399 461 Citizens Utilities
702 393 613 UUNET - Commercial IP service
5668 376 476 CenturyTel Internet Holdings,
1239 365 845 Sprint
6198 354 492 BellSouth Network Solutions,
6517 320 345 Yipes Communications, Inc.
15270 317 344 PaeTec.net -a division of Pae
13609 298 340 Choice One Communications Inc
18302 291 307 SK Global co., Ltd
701 285 988 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 24:680 30:2 32:64
38:180 40:54 44:3 47:3 52:4 55:1
56:3 57:35 58:98 59:92 60:145 61:797
62:789 63:1901 64:2934 65:2129 66:2895 67:636
68:683 69:1317 70:234 71:34 72:464 80:678
81:582 82:478 83:303 84:305 85:365 86:201
87:94 125:66 128:142 129:169 130:99 131:299
132:35 133:1 134:151 135:45 136:168 137:71
138:174 139:73 140:435 141:145 142:400 143:147
144:217 145:34 146:303 147:131 148:271 149:194
150:108 151:73 152:111 153:94 154:5 155:155
156:84 157:119 158:146 159:179 160:85 161:76
162:241 163:147 164:190 165:182 166:146 167:246
168:461 169:142 170:312 171:12 192:5762 193:3360
194:2433 195:1635 196:713 198:3920 199:3264 200:4296
201:465 202:6218 203:6584 204:3841 205:2099 206:2444
207:2924 208:2032 209:3453 210:1706 211:823 212:1212
213:1375 214:315 215:42 216:3846 217:1167 218:218
219:129 220:540 221:276 222:127
End of report
