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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 17 May, 2006
Analysis Summary
----------------
BGP routing table entries examined: 188026
Prefixes after maximum aggregation: 103943
Unique aggregates announced to Internet: 92380
Total ASes present in the Internet Routing Table: 22175
Origin-only ASes present in the Internet Routing Table: 19299
Origin ASes announcing only one prefix: 9220
Transit ASes present in the Internet Routing Table: 2876
Transit-only ASes present in the Internet Routing Table: 65
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: 10
Unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 10
Number of addresses announced to Internet: 1538450600
Equivalent to 91 /8s, 178 /16s and 228 /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: 92789
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 39536
Total APNIC prefixes after maximum aggregation: 16546
Prefixes being announced from the APNIC address blocks: 37254
Unique aggregates announced from the APNIC address blocks: 18417
APNIC Region origin ASes present in the Internet Routing Table: 2552
APNIC Region origin ASes announcing only one prefix: 722
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: 225885664
Equivalent to 13 /8s, 118 /16s and 189 /24s
Percentage of available APNIC address space announced: 70.6
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: 97462
Total ARIN prefixes after maximum aggregation: 57667
Prefixes being announced from the ARIN address blocks: 71550
Unique aggregates announced from the ARIN address blocks: 26502
ARIN Region origin ASes present in the Internet Routing Table: 10709
ARIN Region origin ASes announcing only one prefix: 4013
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: 293209344
Equivalent to 17 /8s, 122 /16s and 5 /24s
Percentage of available ARIN address space announced: 76.0
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: 37566
Total RIPE prefixes after maximum aggregation: 25156
Prefixes being announced from the RIPE address blocks: 34574
Unique aggregates announced from the RIPE address blocks: 23280
RIPE Region origin ASes present in the Internet Routing Table: 8006
RIPE Region origin ASes announcing only one prefix: 4209
RIPE Region transit ASes present in the Internet Routing Table: 1311
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 249659332
Equivalent to 14 /8s, 225 /16s and 127 /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: 11337
Total LACNIC prefixes after maximum aggregation: 3681
Prefixes being announced from the LACNIC address blocks: 9440
Unique aggregates announced from the LACNIC address blocks: 5514
LACNIC Region origin ASes present in the Internet Routing Table: 688
LACNIC Region origin ASes announcing only one prefix: 228
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: 26938368
Equivalent to 1 /8s, 155 /16s and 12 /24s
Percentage of available LACNIC address space announced: 40.1
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: 2116
Total AfriNIC prefixes after maximum aggregation: 893
Prefixes being announced from the AfriNIC address blocks: 1455
Unique aggregates announced from the AfriNIC address blocks: 956
AfriNIC Region origin ASes present in the Internet Routing Table: 155
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: 3.5
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 4072960
Equivalent to 0 /8s, 62 /16s and 38 /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 1136 7079 216 CHINANET-BACKBONE
4755 910 259 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 561 211 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 350 22 112 Telecommunications Technology
18101 344 79 35 Reliance Infocom Ltd Internet
17974 337 135 19 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 312 SINET Japan
17557 334 28 165 Pakistan Telecom
9929 325 221 58 China Netcom Corp.
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 6229 968 AT&T WorldNet Services
4323 1293 734 255 Time Warner Telecom
6197 1006 622 472 BellSouth Network Solutions,
721 996 21945 303 DLA Systems Automation Center
174 960 5787 904 Cogent Communications
19029 949 151 109 New Edge Networks
18566 939 272 8 Covad Communications
701 932 8011 773 UUNET Technologies, Inc.
2386 876 522 674 AT&T Data Communications Serv
1239 849 2805 600 Sprint
209 705 3673 552 Qwest
19262 703 2105 168 Verizon Global Networks
20115 695 609 376 Charter Communications
22773 661 1745 45 Cox Communications, Inc.
7011 635 218 413 Citizens Utilities
11492 632 86 23 Cable One
852 583 1085 384 Telus Advanced Communications
19916 563 49 54 OLM LLC
3602 539 128 110 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 294 472 267 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 210 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 181 37 16 Bulgarian Telecommunication C
30890 175 16 68 SC Kappa Invexim SRL
786 171 1778 171 The JANET IP Service
5400 171 348 140 BT Ignite European Backbone
6830 169 765 35 UPC Distribution Services
9121 168 931 27 TTnet Autonomous System
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 705 1083 219 UniNet S.A. de C.V.
22047 417 158 11 VTR PUNTO NET S.A.
16814 331 20 8 NSS, S.A.
11172 323 110 87 Servicios Alestra S.A de C.V
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 131 16 22 INTERCABLE
6503 129 149 77 AVANTEL, S.A.
19169 129 8 21 Telconet
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 137 135 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
21491 19 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 1293 1038 Time Warner Telecom
18566 939 931 Covad Communications
4134 1136 920 CHINANET-BACKBONE
9583 901 885 Sify Limited
19029 949 840 New Edge Networks
4755 910 837 Videsh Sanchar Nigam Ltd. Aut
721 996 693 DLA Systems Automation Center
22773 661 616 Cox Communications, Inc.
11492 632 609 Cable One
19262 703 535 Verizon Global Networks
6197 1006 534 BellSouth Network Solutions,
19916 563 509 OLM LLC
5668 525 502 CenturyTel Internet Holdings,
9498 561 494 BHARTI BT INTERNET LTD.
17488 501 494 Hathway IP Over Cable Interne
8151 705 486 UniNet S.A. de C.V.
855 534 471 Canadian Research Network
7545 531 461 TPG Internet Pty Ltd
3602 539 429 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
65289 PRIVATE 148.164.1.0/24 4755 Videsh Sanchar Nigam
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 /12:91
/13:201 /14:362 /15:706 /16:8811 /17:3205 /18:5302
/19:11637 /20:13100 /21:11339 /22:14554 /23:15653 /24:101948
/25:379 /26:260 /27:199 /28:61 /29:69 /30:49
/31:0 /32:36
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 922 939 Covad Communications
19029 880 949 New Edge Networks
7018 801 1516 AT&T WorldNet Services
6197 795 1006 BellSouth Network Solutions,
9583 729 901 Sify Limited
4323 636 1293 Time Warner Telecom
11492 623 632 Cable One
2386 601 876 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 408 525 CenturyTel Internet Holdings,
15270 396 427 PaeTec.net -a division of Pae
1239 386 849 Sprint
702 360 579 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 350 350 Telecommunications Technology
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:42 12:1621 13:1 15:12 16:3
17:3 18:4 20:43 24:741 25:1 30:2
32:58 38:216 40:54 41:1 44:3 47:6
52:4 55:1 56:3 57:25 58:150 59:191
60:178 61:853 62:759 63:1925 64:3189 65:2255
66:3008 67:610 68:672 69:1496 70:356 71:84
72:710 73:23 74:36 80:768 81:636 82:605
83:388 84:386 85:525 86:391 87:335 88:87
89:184 124:275 125:385 128:154 129:190 130:114
131:319 132:33 133:8 134:159 135:46 136:177
137:75 138:203 139:68 140:469 141:136 142:373
143:165 144:227 145:39 146:327 147:136 148:330
149:186 150:114 151:88 152:68 153:107 154:6
155:199 156:98 157:145 158:156 159:167 160:87
161:74 162:261 163:146 164:180 165:194 166:163
167:245 168:489 169:128 170:336 171:14 183:1
190:100 192:5761 193:3367 194:2619 195:1831 196:841
198:3902 199:3223 200:4429 201:940 202:6613 203:6857
204:3896 205:2088 206:2415 207:2904 208:2085 209:3781
210:1908 211:686 212:1197 213:1466 214:359 215:41
216:4132 217:1154 218:273 219:193 220:656 221:358
222:161
End of report
