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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 14 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 187933
Prefixes after maximum aggregation: 103801
Unique aggregates announced to Internet: 92116
Total ASes present in the Internet Routing Table: 22140
Origin-only ASes present in the Internet Routing Table: 19265
Origin ASes announcing only one prefix: 9187
Transit ASes present in the Internet Routing Table: 2875
Transit-only ASes present in the Internet Routing Table: 64
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 21
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1537011624
Equivalent to 91 /8s, 156 /16s and 239 /24s
Percentage of available address space announced: 41.5
Percentage of allocated address space announced: 60.0
Percentage of available address space allocated: 69.1
Total number of prefixes smaller than registry allocations: 92722
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39491
Total APNIC prefixes after maximum aggregation: 16514
Prefixes being announced from the APNIC address blocks: 37211
Unique aggregates announced from the APNIC address blocks: 18305
APNIC Region origin ASes present in the Internet Routing Table: 2551
APNIC Region origin ASes announcing only one prefix: 723
APNIC Region transit ASes present in the Internet Routing Table: 389
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225578976
Equivalent to 13 /8s, 114 /16s and 15 /24s
Percentage of available APNIC address space announced: 70.5
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, 121/8, 122/7, 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: 97431
Total ARIN prefixes after maximum aggregation: 57646
Prefixes being announced from the ARIN address blocks: 71510
Unique aggregates announced from the ARIN address blocks: 26445
ARIN Region origin ASes present in the Internet Routing Table: 10695
ARIN Region origin ASes announcing only one prefix: 4009
ARIN Region transit ASes present in the Internet Routing Table: 985
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292692992
Equivalent to 17 /8s, 114 /16s and 36 /24s
Percentage of available ARIN address space announced: 75.9
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, 64/5, 72/6, 76/8, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 37583
Total RIPE prefixes after maximum aggregation: 25117
Prefixes being announced from the RIPE address blocks: 34602
Unique aggregates announced from the RIPE address blocks: 23239
RIPE Region origin ASes present in the Internet Routing Table: 7990
RIPE Region origin ASes announcing only one prefix: 4182
RIPE Region transit ASes present in the Internet Routing Table: 1314
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249454788
Equivalent to 14 /8s, 222 /16s and 96 /24s
Percentage of available RIPE address space announced: 78.3
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, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 11294
Total LACNIC prefixes after maximum aggregation: 3632
Prefixes being announced from the LACNIC address blocks: 9416
Unique aggregates announced from the LACNIC address blocks: 5494
LACNIC Region origin ASes present in the Internet Routing Table: 684
LACNIC Region origin ASes announcing only one prefix: 224
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 26948864
Equivalent to 1 /8s, 155 /16s and 53 /24s
Percentage of available LACNIC address space announced: 40.2
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: 2128
Total AfriNIC prefixes after maximum aggregation: 892
Prefixes being announced from the AfriNIC address blocks: 1467
Unique aggregates announced from the AfriNIC address blocks: 947
AfriNIC Region origin ASes present in the Internet Routing Table: 156
AfriNIC Region origin ASes announcing only one prefix: 49
AfriNIC Region transit ASes present in the Internet Routing Table: 25
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 13
Number of AfriNIC addresses announced to Internet: 4072704
Equivalent to 0 /8s, 62 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 12.1
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 1133 7079 216 CHINANET-BACKBONE
4755 910 259 73 Videsh Sanchar Nigam Ltd. Aut
9583 901 109 16 Sify Limited
4766 683 4435 304 Korea Telecom (KIX)
1221 616 1556 472 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 530 124 69 TPG Internet Pty Ltd
17488 501 31 7 Hathway IP Over Cable Interne
17676 487 7029 109 Softbank BB Corp.
9443 450 110 81 Primus Telecommunications
4802 382 80 174 Wantree Development
17849 347 22 111 Telecommunications Technology
18101 343 85 23 Reliance Infocom Ltd Internet
2907 336 1749 312 SINET Japan
17557 328 27 158 Pakistan Telecom
9929 325 221 58 China Netcom Corp.
17974 310 133 16 PT TELEKOMUNIKASI INDONESIA
7474 299 211 229 SingTel Optus Pty Ltd
9800 273 410 67 CHINA UNICOM
9837 266 78 159 Powertel Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1516 6228 968 AT&T WorldNet Services
4323 1291 734 255 Time Warner Telecom
6197 1008 622 473 BellSouth Network Solutions,
721 993 21945 304 DLA Systems Automation Center
174 958 5787 903 Cogent Communications
19029 950 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 933 8011 774 UUNET Technologies, Inc.
2386 875 522 675 AT&T Data Communications Serv
1239 847 2805 599 Sprint
209 707 3563 555 Qwest
19262 701 2104 167 Verizon Global Networks
20115 693 605 374 Charter Communications
22773 660 1745 45 Cox Communications, Inc.
7011 634 218 412 Citizens Utilities
11492 632 86 23 Cable One
852 584 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
855 542 244 64 Canadian Research Network
3602 538 127 109 Sprint Canada, Inc.
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 582 1952 458 UUNET - Commercial IP service
3301 307 1071 293 TeliaNet Sweden
3352 296 1628 30 Ibernet, Internet Access Netw
8220 294 474 267 COLT Telecommunications
3320 286 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 234 504 224 Song Networks
6746 230 89 206 Dynamic Network Technologies,
8708 217 275 200 Romania Data Systems S.A.
24863 209 40 9 LINKdotNET AS number
8551 202 198 24 Bezeq International
3215 198 1664 94 France Telecom Transpac
3269 198 2134 72 TELECOM ITALIA
1257 192 742 167 SWIPnet Swedish IP Network
8866 180 37 16 Bulgarian Telecommunication C
6830 175 765 35 UPC Distribution Services
30890 173 15 66 SC Kappa Invexim SRL
5400 170 347 140 BT Ignite European Backbone
9121 168 931 27 TTnet Autonomous System
3300 166 171 96 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1083 220 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
11172 322 110 86 Servicios Alestra S.A de C.V
16814 318 20 8 NSS, S.A.
6147 262 126 22 Telefonica Del Peru
14117 205 12 6 Telefonica del Sur S.A.
10481 181 72 8 Prima S.A.
7303 164 77 21 Telecom Argentina Stet-France
11556 132 80 4 Cable-Wireless Panama
21826 132 16 21 INTERCABLE
19169 129 8 21 Telconet
6503 128 149 77 AVANTEL, S.A.
6505 126 91 84 Global One Communicaoes Ltda
14259 116 10 12 GTD Internet S.A.
23216 112 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
7910 105 7 10 ANDINET ON LINE
19429 103 58 44 E.T.B.
18822 98 7 9 TELEFONICA MANQUEHUE
14571 97 25 3 Internet Group do Brasil
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 803 233 The Internet Solution
8452 168 60 7 TEDATA
6713 145 135 11 Itissalat Al-MAGHRIB
2018 123 314 104 Tertiary Education Network
5536 121 8 18 Internet Egypt Network
24835 117 50 7 RAYA Telecom - Egypt
33783 105 6 2 EEPAD TISP TELECOM & INTERNET
2905 73 155 66 The Internetworking Company o
20928 57 16 2 Noor Advanced Technologies AS
15475 52 84 4 Nile Online
5713 39 294 35 Telkom SA Ltd
15706 31 8 3 Sudatel Internet Exchange Aut
33774 30 7 20 AS Number for Telecom Algeria
12455 28 6 3 Jambonet Autonomous system
23889 26 8 11 MAURITIUS TELECOM
8524 24 1 4 AUCEGYPT Autonomous System
16637 24 14 22 Johnnic e-Ventures
10798 22 1 13 Standard Bank of South Africa
2561 19 6 2 Egyptian Universities Network
21280 19 5 5 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1291 1036 Time Warner Telecom
18566 939 931 Covad Communications
4134 1133 917 CHINANET-BACKBONE
9583 901 885 Sify Limited
19029 950 841 New Edge Networks
4755 910 837 Videsh Sanchar Nigam Ltd. Aut
721 993 689 DLA Systems Automation Center
22773 660 615 Cox Communications, Inc.
11492 632 609 Cable One
6197 1008 535 BellSouth Network Solutions,
19262 701 534 Verizon Global Networks
19916 563 509 OLM LLC
5668 529 506 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
8151 705 485 UniNet S.A. de C.V.
855 542 478 Canadian Research Network
7545 530 461 TPG Internet Pty Ltd
3602 538 429 Sprint Canada, Inc.
22047 417 406 VTR PUNTO NET S.A.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65241 PRIVATE 65.90.71.0/24 10794 Bank of America
65128 PRIVATE 193.110.50.0/24 24652 Juniper Networks, Eu
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
65280 PRIVATE 203.197.161.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.14.0/24 4755 Videsh Sanchar Nigam
65280 PRIVATE 203.200.21.0/24 4755 Videsh Sanchar Nigam
36366 UNALLOCATED 216.130.247.0/24 174 Cogent Communication
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
183.206.196.0/24 2188 FR-RENATER-ASTER
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
192.84.205.0/24 719 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 /9:9 /10:9 /11:28 /12:90
/13:202 /14:361 /15:706 /16:8806 /17:3199 /18:5295
/19:11629 /20:13080 /21:11327 /22:14566 /23:15645 /24:101872
/25:387 /26:269 /27:215 /28:64 /29:70 /30:49
/31:0 /32:37
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 922 939 Covad Communications
19029 881 950 New Edge Networks
7018 801 1516 AT&T WorldNet Services
6197 796 1008 BellSouth Network Solutions,
9583 729 901 Sify Limited
4323 634 1291 Time Warner Telecom
11492 623 632 Cable One
2386 599 875 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 543 634 Citizens Utilities
4766 493 683 Korea Telecom (KIX)
855 416 542 Canadian Research Network
5668 411 529 CenturyTel Internet Holdings,
15270 396 427 PaeTec.net -a division of Pae
1239 385 847 Sprint
702 360 582 UUNET - Commercial IP service
6198 357 508 BellSouth Network Solutions,
6517 357 388 Yipes Communications, Inc.
8151 350 705 UniNet S.A. de C.V.
17849 347 347 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1623 13:1 15:12 16:3
17:3 18:4 20:43 24:741 25:1 30:2
32:59 38:214 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:149 59:192
60:178 61:854 62:762 63:1923 64:3185 65:2252
66:3005 67:609 68:659 69:1491 70:330 71:82
72:704 73:23 74:34 80:774 81:637 82:601
83:390 84:385 85:526 86:391 87:332 88:84
89:186 124:274 125:384 128:156 129:187 130:114
131:319 132:33 133:8 134:159 135:46 136:178
137:75 138:198 139:70 140:469 141:136 142:373
143:164 144:227 145:39 146:327 147:136 148:330
149:186 150:114 151:85 152:68 153:107 154:6
155:198 156:98 157:143 158:161 159:171 160:88
161:75 162:261 163:146 164:180 165:194 166:163
167:246 168:488 169:128 170:336 171:14 183:1
190:87 192:5751 193:3370 194:2608 195:1827 196:842
198:3903 199:3229 200:4416 201:936 202:6620 203:6863
204:3892 205:2076 206:2407 207:2945 208:2059 209:3777
210:1912 211:682 212:1228 213:1467 214:354 215:41
216:4152 217:1155 218:272 219:193 220:654 221:358
222:147
End of report
