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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 04 Jan, 2006
Analysis Summary
----------------
BGP routing table entries examined: 177401
Prefixes after maximum aggregation: 99764
Unique aggregates announced to Internet: 86161
Total ASes present in the Internet Routing Table: 21276
Origin-only ASes present in the Internet Routing Table: 18513
Origin ASes announcing only one prefix: 8784
Transit ASes present in the Internet Routing Table: 2763
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1476250304
Equivalent to 87 /8s, 253 /16s and 202 /24s
Percentage of available address space announced: 39.8
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 66.4
Total number of prefixes smaller than registry allocations: 85423
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 37237
Total APNIC prefixes after maximum aggregation: 15787
Prefixes being announced from the APNIC address blocks: 35022
Unique aggregates announced from the APNIC address blocks: 17126
APNIC Region origin ASes present in the Internet Routing Table: 2457
APNIC Region origin ASes announcing only one prefix: 700
APNIC Region transit ASes present in the Internet Routing Table: 375
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 17
Number of APNIC addresses announced to Internet: 208831680
Equivalent to 12 /8s, 114 /16s and 132 /24s
Percentage of available APNIC address space announced: 77.5
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: 93347
Total ARIN prefixes after maximum aggregation: 56111
Prefixes being announced from the ARIN address blocks: 72729
Unique aggregates announced from the ARIN address blocks: 27856
ARIN Region origin ASes present in the Internet Routing Table: 10409
ARIN Region origin ASes announcing only one prefix: 3872
ARIN Region transit ASes present in the Internet Routing Table: 958
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 281230336
Equivalent to 16 /8s, 195 /16s and 60 /24s
Percentage of available ARIN address space announced: 69.8
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: 34857
Total RIPE prefixes after maximum aggregation: 23612
Prefixes being announced from the RIPE address blocks: 31824
Unique aggregates announced from the RIPE address blocks: 21437
RIPE Region origin ASes present in the Internet Routing Table: 7528
RIPE Region origin ASes announcing only one prefix: 3952
RIPE Region transit ASes present in the Internet Routing Table: 1238
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 228964416
Equivalent to 13 /8s, 165 /16s and 184 /24s
Percentage of available RIPE address space announced: 68.2
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: 10120
Total LACNIC prefixes after maximum aggregation: 3393
Prefixes being announced from the LACNIC address blocks: 8354
Unique aggregates announced from the LACNIC address blocks: 4817
LACNIC Region origin ASes present in the Internet Routing Table: 661
LACNIC Region origin ASes announcing only one prefix: 212
LACNIC Region transit ASes present in the Internet Routing Table: 125
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 23482880
Equivalent to 1 /8s, 102 /16s and 82 /24s
Percentage of available LACNIC address space announced: 35.0
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: 1834
Total AfriNIC prefixes after maximum aggregation: 861
Prefixes being announced from the AfriNIC address blocks: 1212
Unique aggregates announced from the AfriNIC address blocks: 827
AfriNIC Region origin ASes present in the Internet Routing Table: 146
AfriNIC Region origin ASes announcing only one prefix: 48
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2972672
Equivalent to 0 /8s, 45 /16s and 92 /24s
Percentage of available AfriNIC address space announced: 8.9
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 995 6453 206 CHINANET-BACKBONE
9583 834 77 14 Sify Limited
4755 760 258 64 Videsh Sanchar Nigam Ltd. Aut
4766 695 3930 295 Korea Telecom (KIX)
1221 662 1364 472 Telstra Pty Ltd
7545 514 108 70 TPG Internet Pty Ltd
17676 475 6853 99 Softbank BB Corp.
17488 436 26 9 Hathway IP Over Cable Interne
9498 407 211 67 BHARTI BT INTERNET LTD.
9443 399 89 85 Primus Telecommunications
4802 353 74 159 Wantree Development
2907 338 1763 315 SINET Japan
9929 332 217 50 China Netcom Corp.
7474 329 227 227 SingTel Optus Pty Ltd
18101 324 69 18 Reliance Infocom Ltd Internet
17557 308 25 162 Pakistan Telecom
17974 293 69 24 PT TELEKOMUNIKASI INDONESIA
4780 282 226 16 Digital United Inc.
9837 270 78 169 Powertel Ltd
9800 256 410 67 CHINA UNICOM
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1452 6311 952 AT&T WorldNet Services
4323 1200 722 235 Time Warner Telecom
174 1050 5826 968 Cogent Communications
721 1029 21935 311 DLA Systems Automation Center
701 972 8117 817 UUNET Technologies, Inc.
6197 966 434 504 BellSouth Network Solutions,
2386 912 517 685 AT&T Data Communications Serv
18566 887 240 7 Covad Communications
1239 847 2803 601 Sprint
209 663 3590 529 Qwest
20115 655 535 337 Charter Communications
11492 635 89 11 Cable One
22773 600 1478 33 Cox Communications, Inc.
19262 592 1703 145 Verizon Global Networks
852 571 1092 379 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 562 243 65 Canadian Research Network
3602 523 127 106 Sprint Canada, Inc.
3356 519 10617 399 Level 3 Communications, LLC
6478 518 1435 285 AT&T Worldnet Services
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 590 1954 468 UUNET - Commercial IP service
3301 304 1071 290 TeliaNet Sweden
3320 285 3486 240 Deutsche Telekom AG
8220 273 474 267 COLT Telecommunications
680 244 2024 238 DFN-IP service G-WiN
3246 227 486 220 Song Networks
8708 223 274 206 Romania Data Systems S.A.
6746 204 52 176 Dynamic Network Technologies,
1257 189 712 170 SWIPnet Swedish IP Network
3269 184 1893 69 TELECOM ITALIA
5515 180 840 127 Sonera Solution Autonomous Sy
786 173 1794 173 The JANET IP Service
8866 172 37 11 Bulgarian Telecommunication C
5400 166 328 135 BT Ignite European Backbone
24863 166 38 9 LINKdotNET AS number
3215 162 1326 82 France Telecom Transpac
6830 162 669 33 UPC Distribution Services
3300 159 169 90 AUCS Communications Services
12479 157 322 5 Uni2 Autonomous System
25186 150 211 105 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 542 776 214 UniNet S.A. de C.V.
22047 380 141 43 VTR PUNTO NET S.A.
16814 293 18 6 NSS, S.A.
11172 291 108 77 Servicios Alestra S.A de C.V
14117 184 11 6 Telefonica del Sur S.A.
13999 175 52 9 Mega Cable S.A. de C.V.
7303 153 73 18 Telecom Argentina Stet-France
6147 150 118 21 Telefonica Del Peru
11556 130 64 3 Cable-Wireless Panama
19169 127 8 25 Telconet
10481 121 48 8 Prima S.A.
6503 114 148 77 AVANTEL, S.A.
21826 113 14 19 INTERCABLE
5639 112 12 9 Telecommunications Services o
6505 107 88 80 Global One Communicaoes Ltda
11311 99 8 10 Sinectis S.A.
18822 99 8 10 TELEFONICA MANQUEHUE
14522 97 12 8 SatNet S.A.
4270 93 17 9 Red de Interconexion Universi
23216 88 23 9 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 272 812 230 The Internet Solution
8452 123 60 6 TEDATA
5536 122 8 16 Internet Egypt Network
2018 117 298 103 Tertiary Education Network
15475 102 84 4 Nile Online
2905 74 155 67 The Internetworking Company o
6713 71 71 10 Itissalat Al-MAGHRIB
24835 65 34 6 RAYA Telecom - Egypt
20928 61 16 2 Noor Advanced Technologies AS
5713 39 167 35 Telkom SA Ltd
33774 33 4 24 AS Number for Telecom Algeria
15706 31 8 3 Sudatel Internet Exchange Aut
23889 25 7 10 MAURITIUS TELECOM
8524 23 1 4 AUCEGYPT Autonomous System
10798 22 1 13 Standard Bank of South Africa
16637 22 10 20 Johnnic e-Ventures
21280 22 4 4 Swift Global Kenya Ltd.Is an
8346 19 14 18 SONATEL-AS Autonomous System
12455 19 6 5 Jambonet Autonomous system
12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1200 965 Time Warner Telecom
18566 887 880 Covad Communications
9583 834 820 Sify Limited
4134 995 789 CHINANET-BACKBONE
721 1029 718 DLA Systems Automation Center
4755 760 696 Videsh Sanchar Nigam Ltd. Aut
11492 635 624 Cable One
22773 600 567 Cox Communications, Inc.
19916 563 509 OLM LLC
855 562 497 Canadian Research Network
5668 498 474 CenturyTel Internet Holdings,
6197 966 462 BellSouth Network Solutions,
19262 592 447 Verizon Global Networks
7545 514 444 TPG Internet Pty Ltd
17488 436 427 Hathway IP Over Cable Interne
3602 523 417 Sprint Canada, Inc.
4766 695 400 Korea Telecom (KIX)
17676 475 376 Softbank BB Corp.
6467 402 356 E.Spire Communications, Inc.
812 370 343 Rogers WAVE
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
38972 UNALLOCATED 80.251.144.0/21 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.151.0/24 6828 Ekaterinburg Telegra
38972 UNALLOCATED 80.251.152.0/23 28947 CJSC InT, Ekaterinbu
29544 UNALLOCATED 82.151.64.0/19 12956 Telefonica Data Auto
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 /11:20 /12:86
/13:194 /14:346 /15:670 /16:8632 /17:2939 /18:4946
/19:11169 /20:12297 /21:10424 /22:13566 /23:14722 /24:96387
/25:338 /26:250 /27:199 /28:62 /29:26 /30:55
/31:3 /32:39
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 871 887 Covad Communications
6197 782 966 BellSouth Network Solutions,
7018 719 1452 AT&T WorldNet Services
9583 655 834 Sify Limited
2386 635 912 AT&T Data Communications Serv
11492 626 635 Cable One
4323 575 1200 Time Warner Telecom
19916 557 563 OLM LLC
4766 499 695 Korea Telecom (KIX)
855 434 562 Canadian Research Network
7011 401 467 Citizens Utilities
5668 387 498 CenturyTel Internet Holdings,
702 373 590 UUNET - Commercial IP service
1239 366 847 Sprint
6198 355 498 BellSouth Network Solutions,
6517 329 355 Yipes Communications, Inc.
15270 329 356 PaeTec.net -a division of Pae
22773 310 600 Cox Communications, Inc.
13609 285 328 Choice One Communications Inc
701 281 972 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:3 8:41 12:1626 13:1 15:11 16:3
17:3 18:3 20:42 24:711 25:1 30:2
32:67 38:188 40:54 44:3 47:3 52:4
55:1 56:3 57:33 58:109 59:127 60:175
61:771 62:778 63:1892 64:2924 65:2134 66:2967
67:594 68:696 69:1322 70:262 71:41 72:515
73:11 80:695 81:570 82:507 83:346 84:335
85:419 86:245 87:125 125:147 128:149 129:167
130:101 131:305 132:33 133:1 134:151 135:45
136:162 137:63 138:178 139:92 140:445 141:136
142:403 143:146 144:225 145:39 146:310 147:135
148:347 149:189 150:109 151:71 152:115 153:98
154:6 155:183 156:90 157:119 158:152 159:176
160:87 161:67 162:245 163:175 164:165 165:171
166:148 167:237 168:471 169:142 170:312 171:12
192:5710 193:3340 194:2455 195:1694 196:737 198:3897
199:3245 200:4233 201:544 202:6382 203:6685 204:3820
205:2089 206:2406 207:2895 208:2020 209:3454 210:1857
211:800 212:1242 213:1416 214:316 215:40 216:3801
217:1160 218:234 219:129 220:639 221:327 222:137
End of report
