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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 04 Nov, 2007
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 236986
Prefixes after maximum aggregation: 121893
Deaggregation factor: 1.94
Unique aggregates announced to Internet: 114296
Total ASes present in the Internet Routing Table: 26591
Prefixes per ASN: 8.91
Origin-only ASes present in the Internet Routing Table: 23142
Origin ASes announcing only one prefix: 11285
Transit ASes present in the Internet Routing Table: 3449
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 18
Prefixes from unregistered ASNs in the Routing Table: 9
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1788275712
Equivalent to 106 /8s, 150 /16s and 236 /24s
Percentage of available address space announced: 48.2
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 78.2
Total number of prefixes smaller than registry allocations: 110246
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 55030
Total APNIC prefixes after maximum aggregation: 20514
APNIC Deaggregation factor: 2.68
Prefixes being announced from the APNIC address blocks: 51944
Unique aggregates announced from the APNIC address blocks: 21949
APNIC Region origin ASes present in the Internet Routing Table: 3071
APNIC Prefixes per ASN: 16.91
APNIC Region origin ASes announcing only one prefix: 797
APNIC Region transit ASes present in the Internet Routing Table: 471
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 323841984
Equivalent to 19 /8s, 77 /16s and 111 /24s
Percentage of available APNIC address space announced: 74.1
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, 114/7, 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: 111549
Total ARIN prefixes after maximum aggregation: 63932
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 82553
Unique aggregates announced from the ARIN address blocks: 32594
ARIN Region origin ASes present in the Internet Routing Table: 11919
ARIN Prefixes per ASN: 6.93
ARIN Region origin ASes announcing only one prefix: 4593
ARIN Region transit ASes present in the Internet Routing Table: 1107
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 352159872
Equivalent to 20 /8s, 253 /16s and 136 /24s
Percentage of available ARIN address space announced: 77.7
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: 49377
Total RIPE prefixes after maximum aggregation: 31812
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 46305
Unique aggregates announced from the RIPE address blocks: 30574
RIPE Region origin ASes present in the Internet Routing Table: 10439
RIPE Prefixes per ASN: 4.44
RIPE Region origin ASes announcing only one prefix: 5549
RIPE Region transit ASes present in the Internet Routing Table: 1646
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 335508480
Equivalent to 19 /8s, 255 /16s and 116 /24s
Percentage of available RIPE address space announced: 76.9
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
40960-45055
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 17765
Total LACNIC prefixes after maximum aggregation: 4549
LACNIC Deaggregation factor: 3.91
Prefixes being announced from the LACNIC address blocks: 15663
Unique aggregates announced from the LACNIC address blocks: 8738
LACNIC Region origin ASes present in the Internet Routing Table: 869
LACNIC Prefixes per ASN: 18.02
LACNIC Region origin ASes announcing only one prefix: 276
LACNIC Region transit ASes present in the Internet Routing Table: 149
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 45849344
Equivalent to 2 /8s, 187 /16s and 155 /24s
Percentage of available LACNIC address space announced: 45.5
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks 186/7, 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 3247
Total AfriNIC prefixes after maximum aggregation: 1070
AfriNIC Deaggregation factor: 3.03
Prefixes being announced from the AfriNIC address blocks: 2367
Unique aggregates announced from the AfriNIC address blocks: 1395
AfriNIC Region origin ASes present in the Internet Routing Table: 212
AfriNIC Prefixes per ASN: 11.17
AfriNIC Region origin ASes announcing only one prefix: 70
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7627520
Equivalent to 0 /8s, 116 /16s and 99 /24s
Percentage of available AfriNIC address space announced: 22.7
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
4755 1427 383 66 Videsh Sanchar Nigam Ltd. Aut
9583 1108 108 16 Sify Limited
4134 1101 11560 302 CHINANET-BACKBONE
9498 1038 549 64 BHARTI BT INTERNET LTD.
17488 874 57 69 Hathway IP Over Cable Interne
4766 814 5473 327 Korea Telecom (KIX)
23577 775 34 680 Korea Telecom (ATM-MPLS)
7545 719 159 122 TPG Internet Pty Ltd
18101 609 119 53 Reliance Infocom Ltd Internet
1221 543 1951 422 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4812 524 866 77 China Telecom (Shanghai)
4668 520 68 10 LG-EDS Systems Inc.
17676 504 10919 64 Softbank BB Corp.
4808 500 797 121 CNCGROUP IP network: China169
4802 486 133 141 Wantree Development
9443 441 121 72 Primus Telecommunications
7474 380 202 266 SingTel Optus Pty Ltd
17974 368 146 14 PT TELEKOMUNIKASI INDONESIA
4837 356 5050 168 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6146 1002 AT&T WorldNet Services
4323 1363 1014 360 Time Warner Telecom
2386 1245 629 756 AT&T Data Communications Serv
11492 1162 119 49 Cable One
6478 1121 329 184 AT&T Worldnet Services
6197 1030 718 508 BellSouth Network Solutions,
18566 1030 288 9 Covad Communications
174 983 6882 848 Cogent Communications
7011 979 290 562 Citizens Utilities
701 898 6568 704 UUNET Technologies, Inc.
577 848 844 211 Bell Advanced Communications
20115 847 773 459 Charter Communications
22773 802 2133 54 Cox Communications, Inc.
19262 797 2861 182 Verizon Global Networks
1239 794 2713 553 Sprint
3356 788 10877 405 Level 3 Communications, LLC
209 731 3784 574 Qwest
5668 663 176 17 CenturyTel Internet Holdings,
1785 591 379 246 AppliedTheory Corporation
3561 591 2324 375 Savvis
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 470 1917 383 UUNET - Commercial IP service
9116 334 168 28 Goldenlines main autonomous s
3301 316 1441 293 TeliaNet Sweden
3320 315 6035 262 Deutsche Telekom AG
8551 311 298 41 Bezeq International
6746 273 129 251 Dynamic Network Technologies,
8708 273 421 244 Romania Data Systems S.A.
8866 269 62 25 Bulgarian Telecommunication C
680 268 2045 254 DFN-IP service G-WiN
3215 263 2503 98 France Telecom Transpac
8220 255 444 237 COLT Telecommunications
8452 244 188 7 TEDATA
3352 235 1932 41 Ibernet, Internet Access Netw
3269 228 2935 75 TELECOM ITALIA
9121 212 1442 25 TTnet Autonomous System
3300 199 172 95 AUCS Communications Services
12479 195 578 6 Uni2 Autonomous System
1257 194 1195 177 SWIPnet Swedish IP Network
3246 193 257 184 Song Networks
3292 193 1380 177 TDC Tele Danmark
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1157 2405 219 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 427 27 10 NSS, S.A.
14522 378 32 7 SatNet S.A.
11172 377 114 60 Servicios Alestra S.A de C.V
7303 367 177 54 Telecom Argentina Stet-France
6471 352 77 37 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
10481 301 120 10 Prima S.A.
14117 285 19 15 Telefonica del Sur S.A.
10620 265 73 27 TVCABLE BOGOTA
6147 242 182 20 Telefonica Del Peru
11556 235 128 3 Cable-Wireless Panama
23216 220 17 47 RAMtelecom Telecomunicaciones
6503 215 187 85 AVANTEL, S.A.
7738 205 538 24 Telecomunicacoes da Bahia S.A
28573 202 314 27 NET Servicos de Comunicao S.A
21826 184 33 49 INTERCABLE
20299 181 33 30 NEWCOM AMERICAS
19169 180 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
24863 386 67 44 LINKdotNET AS number
3741 279 869 225 The Internet Solution
20858 195 34 3 EgyNet
6713 143 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 127 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 6 RAYA Telecom - Egypt
15475 81 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 74 24 15 MAURITIUS TELECOM
16637 68 21 29 Johnnic e-Ventures
20484 63 5 5 Yalla Online Autonomous Syste
15706 56 12 4 Sudatel Internet Exchange Aut
29571 55 11 7 Ci Telecom Autonomous system
33774 48 33 26 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
12455 36 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1427 1361 Videsh Sanchar Nigam Ltd. Aut
11492 1162 1113 Cable One
9583 1108 1092 Sify Limited
18566 1030 1021 Covad Communications
4323 1363 1003 Time Warner Telecom
9498 1038 974 BHARTI BT INTERNET LTD.
8151 1157 938 UniNet S.A. de C.V.
6478 1121 937 AT&T Worldnet Services
17488 874 805 Hathway IP Over Cable Interne
4134 1101 799 CHINANET-BACKBONE
22773 802 748 Cox Communications, Inc.
5668 663 646 CenturyTel Internet Holdings,
577 848 637 Bell Advanced Communications
19262 797 615 Verizon Global Networks
7545 719 597 TPG Internet Pty Ltd
18101 609 556 Reliance Infocom Ltd Internet
6517 584 551 Yipes Communications, Inc.
6197 1030 522 BellSouth Network Solutions,
19916 569 522 OLM LLC
9829 530 521 BSNL National Internet Backbo
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64999 PRIVATE 78.24.120.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.122.0/23 3257 Tiscali Intl Network
64999 PRIVATE 78.24.124.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.125.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.126.0/24 3257 Tiscali Intl Network
64999 PRIVATE 78.24.127.0/24 3257 Tiscali Intl Network
65300 PRIVATE 216.243.221.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.222.0/24 11320 Internet Express, In
65300 PRIVATE 216.243.223.0/24 11320 Internet Express, In
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
172.14.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.15.254.0/24 20312 CNTI-REACCIUN "Centro Naciona
172.33.1.0/24 7018 AT&T WorldNet Services
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 /8:18 /9:9 /10:16 /11:39 /12:136
/13:270 /14:481 /15:948 /16:9709 /17:4166 /18:6698
/19:14608 /20:16685 /21:15573 /22:20153 /23:20847 /24:124135
/25:808 /26:1024 /27:540 /28:110 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1153 1162 Cable One
6478 1120 1121 AT&T Worldnet Services
18566 1012 1030 Covad Communications
9583 946 1108 Sify Limited
2386 935 1245 AT&T Data Communications Serv
7011 866 979 Citizens Utilities
7018 827 1499 AT&T WorldNet Services
4755 817 1427 Videsh Sanchar Nigam Ltd. Aut
6197 774 1030 BellSouth Network Solutions,
23577 766 775 Korea Telecom (ATM-MPLS)
9498 722 1038 BHARTI BT INTERNET LTD.
17488 689 874 Hathway IP Over Cable Interne
577 609 848 Bell Advanced Communications
4766 605 814 Korea Telecom (KIX)
4323 576 1363 Time Warner Telecom
19916 564 569 OLM LLC
6517 540 584 Yipes Communications, Inc.
5668 521 663 CenturyTel Internet Holdings,
4668 510 520 LG-EDS Systems Inc.
18101 509 609 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:89 12:1796 15:19 16:3 17:6
18:13 20:35 24:1001 25:1 32:57 33:3
38:355 40:64 41:379 44:2 47:8 52:3
55:3 56:3 57:21 58:477 59:409 60:384
61:991 62:942 63:1990 64:3294 65:2372 66:3591
67:857 68:687 69:2010 70:463 71:107 72:1418
73:8 74:744 75:263 76:154 77:415 78:264
79:9 80:860 81:791 82:577 83:348 84:636
85:815 86:411 87:585 88:282 89:1022 90:38
91:703 92:5 96:1 97:6 98:12 116:419
117:208 118:42 121:336 122:636 123:205 124:702
125:1034 128:306 129:195 130:142 131:368 132:55
133:9 134:191 135:34 136:189 137:82 138:156
139:76 140:507 141:145 142:371 143:254 144:316
145:46 146:326 147:130 148:485 149:184 150:166
151:137 152:92 153:121 154:11 155:261 156:164
157:224 158:159 159:193 160:141 161:100 162:188
163:183 164:497 165:399 166:287 167:308 168:512
169:128 170:418 171:22 172:5 189:103 190:1207
192:5715 193:3988 194:3210 195:2451 196:935 198:3796
199:3203 200:5255 201:1230 202:7434 203:7786 204:3981
205:1997 206:2418 207:2782 208:2919 209:3608 210:2405
211:1076 212:1303 213:1527 214:434 215:43 216:4121
217:1198 218:324 219:327 220:1013 221:403 222:267
End of report
