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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 16 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188158
Prefixes after maximum aggregation: 103880
Unique aggregates announced to Internet: 92206
Total ASes present in the Internet Routing Table: 22163
Origin-only ASes present in the Internet Routing Table: 19279
Origin ASes announcing only one prefix: 9201
Transit ASes present in the Internet Routing Table: 2884
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: 20
Max AS path prepend of ASN (34527) 16
Prefixes from unregistered ASNs in the Routing Table: 9
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1537577640
Equivalent to 91 /8s, 165 /16s and 146 /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: 92863
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39558
Total APNIC prefixes after maximum aggregation: 16538
Prefixes being announced from the APNIC address blocks: 37279
Unique aggregates announced from the APNIC address blocks: 18312
APNIC Region origin ASes present in the Internet Routing Table: 2554
APNIC Region origin ASes announcing only one prefix: 725
APNIC Region transit ASes present in the Internet Routing Table: 387
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 225606368
Equivalent to 13 /8s, 114 /16s and 122 /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: 97507
Total ARIN prefixes after maximum aggregation: 57636
Prefixes being announced from the ARIN address blocks: 71603
Unique aggregates announced from the ARIN address blocks: 26477
ARIN Region origin ASes present in the Internet Routing Table: 10706
ARIN Region origin ASes announcing only one prefix: 4012
ARIN Region transit ASes present in the Internet Routing Table: 991
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 18
Number of ARIN addresses announced to Internet: 292704768
Equivalent to 17 /8s, 114 /16s and 82 /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: 37609
Total RIPE prefixes after maximum aggregation: 25146
Prefixes being announced from the RIPE address blocks: 34618
Unique aggregates announced from the RIPE address blocks: 23255
RIPE Region origin ASes present in the Internet Routing Table: 7997
RIPE Region origin ASes announcing only one prefix: 4191
RIPE Region transit ASes present in the Internet Routing Table: 1319
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249505220
Equivalent to 14 /8s, 223 /16s and 37 /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: 11355
Total LACNIC prefixes after maximum aggregation: 3669
Prefixes being announced from the LACNIC address blocks: 9457
Unique aggregates announced from the LACNIC address blocks: 5514
LACNIC Region origin ASes present in the Internet Routing Table: 686
LACNIC Region origin ASes announcing only one prefix: 225
LACNIC Region transit ASes present in the Internet Routing Table: 130
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 26954240
Equivalent to 1 /8s, 155 /16s and 74 /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: 2121
Total AfriNIC prefixes after maximum aggregation: 891
Prefixes being announced from the AfriNIC address blocks: 1459
Unique aggregates announced from the AfriNIC address blocks: 956
AfriNIC Region origin ASes present in the Internet Routing Table: 156
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: 3.4
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4070656
Equivalent to 0 /8s, 62 /16s and 29 /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 1134 7079 216 CHINANET-BACKBONE
4755 911 259 73 Videsh Sanchar Nigam Ltd. Aut
9583 901 109 16 Sify Limited
4766 685 4435 304 Korea Telecom (KIX)
1221 615 1556 471 Telstra Pty Ltd
9498 566 211 67 BHARTI BT INTERNET LTD.
7545 531 124 70 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 380 80 173 Wantree Development
17849 349 22 113 Telecommunications Technology
18101 344 85 23 Reliance Infocom Ltd Internet
17974 340 135 19 PT TELEKOMUNIKASI INDONESIA
17557 337 28 164 Pakistan Telecom
2907 336 1749 312 SINET Japan
9929 325 221 58 China Netcom Corp.
7474 299 211 229 SingTel Optus Pty Ltd
9800 272 410 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 1292 734 255 Time Warner Telecom
6197 1008 622 473 BellSouth Network Solutions,
721 995 21945 304 DLA Systems Automation Center
174 959 5787 904 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 848 2805 599 Sprint
209 706 3561 554 Qwest
19262 702 2104 167 Verizon Global Networks
20115 694 607 375 Charter Communications
22773 660 1745 45 Cox Communications, Inc.
7011 635 218 413 Citizens Utilities
11492 632 86 23 Cable One
852 584 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
3602 537 127 109 Sprint Canada, Inc.
855 534 244 63 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 579 1952 457 UUNET - Commercial IP service
3301 307 1071 293 TeliaNet Sweden
3352 296 1628 30 Ibernet, Internet Access Netw
8220 293 472 266 COLT Telecommunications
3320 286 3989 240 Deutsche Telekom AG
680 245 2025 242 DFN-IP service G-WiN
3246 235 504 225 Song Networks
6746 230 89 206 Dynamic Network Technologies,
8708 218 275 201 Romania Data Systems S.A.
24863 209 41 10 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 179 37 15 Bulgarian Telecommunication C
30890 173 15 66 SC Kappa Invexim SRL
786 171 1778 171 The JANET IP Service
5400 170 348 141 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
9121 169 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 703 1082 221 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
11172 322 110 87 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 127 149 77 AVANTEL, S.A.
14259 116 10 12 GTD Internet S.A.
23216 112 21 9 RAMtelecom Telecomunicaciones
5639 109 12 9 Telecommunications Services o
6505 109 88 79 Global One Communicaoes Ltda
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 58 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 1292 1037 Time Warner Telecom
18566 939 931 Covad Communications
4134 1134 918 CHINANET-BACKBONE
9583 901 885 Sify Limited
19029 950 841 New Edge Networks
4755 911 838 Videsh Sanchar Nigam Ltd. Aut
721 995 691 DLA Systems Automation Center
22773 660 615 Cox Communications, Inc.
11492 632 609 Cable One
6197 1008 535 BellSouth Network Solutions,
19262 702 535 Verizon Global Networks
19916 563 509 OLM LLC
5668 526 503 CenturyTel Internet Holdings,
9498 566 499 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
8151 703 482 UniNet S.A. de C.V.
855 534 471 Canadian Research Network
7545 531 461 TPG Internet Pty Ltd
3602 537 428 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
64515 PRIVATE 203.126.13.0/25 7610 SINGAPORE ADVANCE RE
64515 PRIVATE 203.126.13.128/26 7610 SINGAPORE ADVANCE RE
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 /16:8814 /17:3201 /18:5298
/19:11637 /20:13108 /21:11335 /22:14567 /23:15661 /24:102024
/25:387 /26:269 /27:211 /28:64 /29:70 /30:49
/31:0 /32:40
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 635 1292 Time Warner Telecom
11492 623 632 Cable One
2386 599 875 AT&T Data Communications Serv
19916 557 563 OLM LLC
7011 544 635 Citizens Utilities
4766 495 685 Korea Telecom (KIX)
855 416 534 Canadian Research Network
5668 408 526 CenturyTel Internet Holdings,
15270 396 427 PaeTec.net -a division of Pae
1239 386 848 Sprint
702 360 579 UUNET - Commercial IP service
6198 357 508 BellSouth Network Solutions,
6517 355 386 Yipes Communications, Inc.
17849 349 349 Telecommunications Technology
8151 348 703 UniNet S.A. de C.V.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:41 12:1622 13:1 15:12 16:3
17:3 18:4 20:43 24:741 25:1 30:2
32:59 38:215 40:53 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:164 59:194
60:178 61:854 62:761 63:1923 64:3188 65:2259
66:3007 67:609 68:671 69:1493 70:356 71:82
72:710 73:23 74:35 80:769 81:643 82:600
83:392 84:385 85:521 86:392 87:332 88:87
89:187 124:276 125:386 128:153 129:189 130:114
131:319 132:33 133:8 134:159 135:46 136:178
137:74 138:198 139:69 140:469 141:136 142:373
143:165 144:227 145:39 146:327 147:136 148:326
149:186 150:114 151:86 152:68 153:107 154:6
155:198 156:103 157:143 158:161 159:171 160:87
161:75 162:260 163:146 164:180 165:194 166:163
167:246 168:489 169:128 170:336 171:14 183:1
190:100 192:5753 193:3363 194:2617 195:1824 196:838
198:3900 199:3221 200:4429 201:936 202:6612 203:6862
204:3899 205:2092 206:2409 207:2941 208:2068 209:3783
210:1908 211:686 212:1230 213:1477 214:362 215:41
216:4154 217:1151 218:273 219:193 220:654 221:358
222:162
End of report
