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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 14 Feb, 2007
Analysis Summary
----------------
BGP routing table entries examined: 210829
Prefixes after maximum aggregation: 113599
Deaggregation factor: 1.86
Unique aggregates announced to Internet: 102605
Total ASes present in the Internet Routing Table: 24331
Origin-only ASes present in the Internet Routing Table: 21187
Origin ASes announcing only one prefix: 10252
Transit ASes present in the Internet Routing Table: 3144
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 32
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 4
Unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 13
Number of addresses announced to Internet: 1672519820
Equivalent to 99 /8s, 176 /16s and 160 /24s
Percentage of available address space announced: 45.1
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 108171
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 47508
Total APNIC prefixes after maximum aggregation: 18961
APNIC Deaggregation factor: 2.51
Prefixes being announced from the APNIC address blocks: 44802
Unique aggregates announced from the APNIC address blocks: 19725
APNIC Region origin ASes present in the Internet Routing Table: 2850
APNIC Region origin ASes announcing only one prefix: 791
APNIC Region transit ASes present in the Internet Routing Table: 422
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 279362016
Equivalent to 16 /8s, 166 /16s and 185 /24s
Percentage of available APNIC address space announced: 69.2
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, 116/6, 120/6, 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: 103121
Total ARIN prefixes after maximum aggregation: 61110
ARIN Deaggregation factor: 1.69
Prefixes being announced from the ARIN address blocks: 75984
Unique aggregates announced from the ARIN address blocks: 29401
ARIN Region origin ASes present in the Internet Routing Table: 11330
ARIN Region origin ASes announcing only one prefix: 4340
ARIN Region transit ASes present in the Internet Routing Table: 1052
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 317679232
Equivalent to 18 /8s, 239 /16s and 102 /24s
Percentage of available ARIN address space announced: 70.1
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, 39936-40959
ARIN Address Blocks 24/8, 63/8, 64/5, 72/6, 76/8, 96/6, 199/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 43725
Total RIPE prefixes after maximum aggregation: 28544
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 40420
Unique aggregates announced from the RIPE address blocks: 26892
RIPE Region origin ASes present in the Internet Routing Table: 9137
RIPE Region origin ASes announcing only one prefix: 4817
RIPE Region transit ASes present in the Internet Routing Table: 1475
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 32
Number of RIPE addresses announced to Internet: 290218276
Equivalent to 17 /8s, 76 /16s and 97 /24s
Percentage of available RIPE address space announced: 78.6
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
40960-43007
RIPE Address Blocks 62/8, 77/8, 78/7, 80/5, 88/6, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 13917
Total LACNIC prefixes after maximum aggregation: 4021
LACNIC Deaggregation factor: 3.46
Prefixes being announced from the LACNIC address blocks: 11988
Unique aggregates announced from the LACNIC address blocks: 6924
LACNIC Region origin ASes present in the Internet Routing Table: 759
LACNIC Region origin ASes announcing only one prefix: 248
LACNIC Region transit ASes present in the Internet Routing Table: 131
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 37503488
Equivalent to 2 /8s, 60 /16s and 66 /24s
Percentage of available LACNIC address space announced: 55.9
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: 2555
Total AfriNIC prefixes after maximum aggregation: 961
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 1846
Unique aggregates announced from the AfriNIC address blocks: 1171
AfriNIC Region origin ASes present in the Internet Routing Table: 178
AfriNIC Region origin ASes announcing only one prefix: 55
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5405440
Equivalent to 0 /8s, 82 /16s and 123 /24s
Percentage of available AfriNIC address space announced: 16.1
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 1281 8684 276 CHINANET-BACKBONE
4755 1100 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1039 98 88 Sify Limited
9498 953 467 66 BHARTI BT INTERNET LTD.
23577 778 35 705 Korea Telecom (ATM-MPLS)
4766 768 4944 313 Korea Telecom (KIX)
17488 598 39 24 Hathway IP Over Cable Interne
7545 586 126 75 TPG Internet Pty Ltd
1221 575 1683 443 Telstra Pty Ltd
18101 521 103 23 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
9443 443 111 75 Primus Telecommunications
4812 442 795 73 China Telecom (Shanghai)
7474 380 215 257 SingTel Optus Pty Ltd
17849 370 35 94 Telecommunications Technology
4802 359 86 149 Wantree Development
17557 357 34 170 Pakistan Telecom
17974 346 129 14 PT TELEKOMUNIKASI INDONESIA
2907 336 1749 309 SINET Japan
4837 336 4151 148 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1498 6124 981 AT&T WorldNet Services
4323 1174 839 407 Time Warner Telecom
2386 1107 570 732 AT&T Data Communications Serv
6197 1016 651 498 BellSouth Network Solutions,
18566 988 288 9 Covad Communications
11492 942 100 15 Cable One
701 940 6696 748 UUNET Technologies, Inc.
174 935 6791 864 Cogent Communications
1239 825 2730 577 Sprint
20115 804 703 415 Charter Communications
7011 786 227 475 Citizens Utilities
19262 757 2591 178 Verizon Global Networks
22773 728 1872 41 Cox Communications, Inc.
209 718 3742 564 Qwest
721 680 21836 278 DLA Systems Automation Center
852 604 1090 391 Telus Advanced Communications
5668 576 160 16 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
855 565 250 70 Canadian Research Network
6198 554 526 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 546 1897 424 UUNET - Commercial IP service
3301 315 1199 290 TeliaNet Sweden
24863 308 45 25 LINKdotNET AS number
3320 297 4993 248 Deutsche Telekom AG
8220 271 471 263 COLT Telecommunications
6746 267 95 246 Dynamic Network Technologies,
680 257 2044 251 DFN-IP service G-WiN
8708 240 284 226 Romania Data Systems S.A.
3215 238 2224 92 France Telecom Transpac
1257 221 1092 170 SWIPnet Swedish IP Network
5416 215 14 15 BATELCO-BH
3269 212 2391 71 TELECOM ITALIA
3246 208 355 198 Song Networks
30890 206 17 96 SC Kappa Invexim SRL
8551 201 194 29 Bezeq International
3352 198 1783 32 Ibernet, Internet Access Netw
20858 197 34 3 EgyNet
3300 181 171 90 AUCS Communications Services
12479 177 578 6 Uni2 Autonomous System
786 172 1779 172 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1020 2095 207 UniNet S.A. de C.V.
11830 482 299 19 Instituto Costarricense de El
11172 343 107 82 Servicios Alestra S.A de C.V
16814 329 20 8 NSS, S.A.
22047 307 206 11 VTR PUNTO NET S.A.
6471 253 74 30 ENTEL CHILE S.A.
7303 249 142 29 Telecom Argentina Stet-France
14117 239 16 13 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 226 182 20 Telefonica Del Peru
6503 203 173 85 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
7910 152 11 32 ANDINET ON LINE
21826 152 27 55 INTERCABLE
23216 148 19 42 RAMtelecom Telecomunicaciones
18822 145 9 10 TELEFONICA MANQUEHUE
20299 144 22 17 NEWCOM AMERICAS
19169 143 9 25 Telconet
19429 143 88 35 E.T.B.
14522 140 22 9 SatNet S.A.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 290 868 232 The Internet Solution
8452 240 60 6 TEDATA
15475 155 84 4 Nile Online
6713 144 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
5536 123 8 15 Internet Egypt Network
33783 111 6 5 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 79 173 72 The Internetworking Company o
2561 63 6 2 Egyptian Universities Network
15706 55 12 4 Sudatel Internet Exchange Aut
23889 53 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 42 12 22 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
33776 27 2 5 Starcomms Nigeria Limited
12455 25 6 3 Jambonet Autonomous system
21280 25 4 4 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1100 1024 Videsh Sanchar Nigam Ltd. Aut
4134 1281 1005 CHINANET-BACKBONE
18566 988 979 Covad Communications
9583 1039 951 Sify Limited
11492 942 927 Cable One
9498 953 887 BHARTI BT INTERNET LTD.
8151 1020 813 UniNet S.A. de C.V.
4323 1174 767 Time Warner Telecom
22773 728 687 Cox Communications, Inc.
19262 757 579 Verizon Global Networks
17488 598 574 Hathway IP Over Cable Interne
5668 576 560 CenturyTel Internet Holdings,
6197 1016 518 BellSouth Network Solutions,
19916 568 514 OLM LLC
7545 586 511 TPG Internet Pty Ltd
18101 521 498 Reliance Infocom Ltd Internet
855 565 495 Canadian Research Network
15270 505 471 PaeTec.net -a division of Pae
11830 482 463 Instituto Costarricense de El
4766 768 455 Korea Telecom (KIX)
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
42.205.192.0/20 36925 Meditelecom
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
172.33.1.0/24 7018 AT&T WorldNet Services
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
192.0.10.0/24 9498 BHARTI BT INTERNET LTD.
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
192.153.136.0/21 721 DLA Systems Automation Center
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 /8:19 /9:9 /10:12 /11:33 /12:117
/13:226 /14:424 /15:819 /16:9220 /17:3726 /18:6054
/19:13109 /20:14704 /21:13182 /22:16994 /23:17977 /24:112370
/25:694 /26:489 /27:414 /28:69 /29:44 /30:91
/31:0 /32:33
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 970 988 Covad Communications
11492 928 942 Cable One
9583 872 1039 Sify Limited
2386 830 1107 AT&T Data Communications Serv
7018 808 1498 AT&T WorldNet Services
6197 795 1016 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 685 786 Citizens Utilities
9498 607 953 BHARTI BT INTERNET LTD.
4766 575 768 Korea Telecom (KIX)
19916 563 568 OLM LLC
4755 510 1100 Videsh Sanchar Nigam Ltd. Aut
15270 473 505 PaeTec.net -a division of Pae
855 464 565 Canadian Research Network
18101 452 521 Reliance Infocom Ltd Internet
5668 446 576 CenturyTel Internet Holdings,
4323 444 1174 Time Warner Telecom
17488 420 598 Hathway IP Over Cable Interne
33588 410 432 Bresnan Communications, LLC.
1239 403 825 Sprint
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:63 9:1 12:1657 13:1
15:16 16:3 17:3 18:5 20:36 24:885
25:1 32:53 38:281 40:57 41:70 44:2
47:7 52:4 55:1 56:3 57:25 58:301
59:377 60:211 61:921 62:1023 63:1907 64:3240
65:2307 66:3109 67:721 68:655 69:1724 70:446
71:98 72:1187 73:1 74:164 75:77 77:18
80:851 81:773 82:653 83:360 84:505 85:718
86:465 87:482 88:229 89:791 90:3 91:170
97:1 116:1 117:1 118:1 119:1 120:1
121:134 122:84 123:38 124:581 125:784 128:309
129:219 130:133 131:341 132:49 133:9 134:186
135:42 136:181 137:113 138:177 139:53 140:505
141:141 142:370 143:214 144:269 145:43 146:315
147:144 148:374 149:189 150:114 151:116 152:92
153:119 154:5 155:250 156:129 157:174 158:168
159:149 160:98 161:88 162:228 163:163 164:449
165:330 166:246 167:282 168:497 169:120 170:379
171:15 172:1 189:164 190:393 192:5754 193:3706
194:2961 195:2207 196:944 198:3747 199:3284 200:4608
201:972 202:7203 203:7386 204:3955 205:2096 206:2399
207:2862 208:2459 209:3590 210:2369 211:925 212:1298
213:1419 214:408 215:39 216:4077 217:1146 218:351
219:274 220:853 221:370 222:265
End of report
Report Website: http://thyme.apnic.net
