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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 02 Oct, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/10/02/0400
Analysis Summary
----------------
BGP routing table entries examined: 233424
Prefixes after maximum aggregation: 121139
Deaggregation factor: 1.93
Unique aggregates announced to Internet: 113293
Total ASes present in the Internet Routing Table: 26342
Prefixes per ASN: 8.86
Origin-only ASes present in the Internet Routing Table: 22931
Origin ASes announcing only one prefix: 11181
Transit ASes present in the Internet Routing Table: 3411
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 21
Unregistered ASNs in the Routing Table: 7
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: 1788506144
Equivalent to 106 /8s, 154 /16s and 112 /24s
Percentage of available address space announced: 48.3
Percentage of allocated address space announced: 62.4
Percentage of available address space allocated: 77.3
Total number of prefixes smaller than registry allocations: 107857
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 54627
Total APNIC prefixes after maximum aggregation: 21011
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 51558
Unique aggregates announced from the APNIC address blocks: 22823
APNIC Region origin ASes present in the Internet Routing Table: 3063
APNIC Prefixes per ASN: 16.83
APNIC Region origin ASes announcing only one prefix: 812
APNIC Region transit ASes present in the Internet Routing Table: 472
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 320807072
Equivalent to 19 /8s, 31 /16s and 32 /24s
Percentage of available APNIC address space announced: 79.5
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, 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: 110035
Total ARIN prefixes after maximum aggregation: 63300
ARIN Deaggregation factor: 1.74
Prefixes being announced from the ARIN address blocks: 81124
Unique aggregates announced from the ARIN address blocks: 32145
ARIN Region origin ASes present in the Internet Routing Table: 11866
ARIN Prefixes per ASN: 6.84
ARIN Region origin ASes announcing only one prefix: 4562
ARIN Region transit ASes present in the Internet Routing Table: 1094
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 346334080
Equivalent to 20 /8s, 164 /16s and 163 /24s
Percentage of available ARIN address space announced: 76.5
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: 48944
Total RIPE prefixes after maximum aggregation: 31280
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 45408
Unique aggregates announced from the RIPE address blocks: 29861
RIPE Region origin ASes present in the Internet Routing Table: 10262
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5458
RIPE Region transit ASes present in the Internet Routing Table: 1624
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 329410944
Equivalent to 19 /8s, 162 /16s and 105 /24s
Percentage of available RIPE address space announced: 75.5
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: 17100
Total LACNIC prefixes after maximum aggregation: 4504
LACNIC Deaggregation factor: 3.80
Prefixes being announced from the LACNIC address blocks: 15229
Unique aggregates announced from the LACNIC address blocks: 8191
LACNIC Region origin ASes present in the Internet Routing Table: 867
LACNIC Prefixes per ASN: 17.57
LACNIC Region origin ASes announcing only one prefix: 278
LACNIC Region transit ASes present in the Internet Routing Table: 148
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 43566080
Equivalent to 2 /8s, 152 /16s and 196 /24s
Percentage of available LACNIC address space announced: 43.3
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: 2688
Total AfriNIC prefixes after maximum aggregation: 1028
AfriNIC Deaggregation factor: 2.61
Prefixes being announced from the AfriNIC address blocks: 2253
Unique aggregates announced from the AfriNIC address blocks: 1354
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 10.94
AfriNIC Region origin ASes announcing only one prefix: 71
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7460608
Equivalent to 0 /8s, 113 /16s and 215 /24s
Percentage of available AfriNIC address space announced: 22.2
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 1425 383 67 Videsh Sanchar Nigam Ltd. Aut
9583 1125 81 416 Sify Limited
4134 1098 11508 299 CHINANET-BACKBONE
9498 1003 533 66 BHARTI BT INTERNET LTD.
17488 823 53 65 Hathway IP Over Cable Interne
4766 809 5441 321 Korea Telecom (KIX)
23577 789 34 683 Korea Telecom (ATM-MPLS)
7545 732 159 119 TPG Internet Pty Ltd
18101 600 119 50 Reliance Infocom Ltd Internet
4802 576 131 149 Wantree Development
4812 548 974 94 China Telecom (Shanghai)
1221 539 1950 420 Telstra Pty Ltd
9829 530 1312 9 BSNL National Internet Backbo
4668 517 68 10 LG-EDS Systems Inc.
17676 502 10903 63 Softbank BB Corp.
4808 493 792 119 CNCGROUP IP network: China169
9443 467 122 77 Primus Telecommunications
7474 381 218 268 SingTel Optus Pty Ltd
17974 362 130 13 PT TELEKOMUNIKASI INDONESIA
4837 358 5136 169 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6122 990 AT&T WorldNet Services
4323 1401 991 366 Time Warner Telecom
2386 1220 635 732 AT&T Data Communications Serv
11492 1153 113 12 Cable One
6478 1132 329 138 AT&T Worldnet Services
6197 1031 718 508 BellSouth Network Solutions,
18566 1028 288 9 Covad Communications
174 967 6779 845 Cogent Communications
7011 944 287 559 Citizens Utilities
701 872 6573 680 UUNET Technologies, Inc.
20115 830 762 441 Charter Communications
1239 801 2720 561 Sprint
19262 780 2766 189 Verizon Global Networks
22773 777 2149 52 Cox Communications, Inc.
209 741 3818 585 Qwest
3356 674 10820 373 Level 3 Communications, LLC
5668 656 176 23 CenturyTel Internet Holdings,
6517 587 165 36 Yipes Communications, Inc.
15270 581 161 39 PaeTec.net -a division of Pae
852 578 1093 357 Telus Advanced Communications
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 491 1921 393 UUNET - Commercial IP service
24863 371 58 37 LINKdotNET AS number
9116 350 168 27 Goldenlines main autonomous s
3301 317 1457 294 TeliaNet Sweden
3320 313 6035 260 Deutsche Telekom AG
8551 295 283 41 Bezeq International
6746 290 131 266 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
3215 263 2480 100 France Telecom Transpac
8708 263 421 242 Romania Data Systems S.A.
8866 263 62 22 Bulgarian Telecommunication C
8220 254 444 237 COLT Telecommunications
3352 230 1882 40 Ibernet, Internet Access Netw
3269 223 2839 73 TELECOM ITALIA
9121 216 1442 25 TTnet Autonomous System
3292 196 1380 176 TDC Tele Danmark
3300 195 171 95 AUCS Communications Services
1257 194 1195 171 SWIPnet Swedish IP Network
12479 194 578 6 Uni2 Autonomous System
3246 189 253 179 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1023 2156 215 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 378 114 60 Servicios Alestra S.A de C.V
7303 352 166 52 Telecom Argentina Stet-France
14522 345 29 8 SatNet S.A.
6471 339 75 35 ENTEL CHILE S.A.
22047 317 246 13 VTR PUNTO NET S.A.
14117 287 19 15 Telefonica del Sur S.A.
11664 278 30 13 Keytech SA
10481 261 104 9 Prima S.A.
10620 238 66 24 TVCABLE BOGOTA
11556 237 128 4 Cable-Wireless Panama
6147 229 178 24 Telefonica Del Peru
6503 202 170 82 AVANTEL, S.A.
23216 197 17 45 RAMtelecom Telecomunicaciones
20299 178 25 30 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
19169 177 12 20 Telconet
21826 173 31 59 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 278 869 225 The Internet Solution
8452 218 188 7 TEDATA
6713 144 135 11 Itissalat Al-MAGHRIB
2018 140 299 115 Tertiary Education Network
33783 125 8 12 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 76 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
23889 73 24 15 MAURITIUS TELECOM
15706 56 12 4 Sudatel Internet Exchange Aut
33774 47 29 25 AS Number for Telecom Algeria
5713 46 294 36 Telkom SA Ltd
16637 42 21 29 Johnnic e-Ventures
12455 35 6 3 Jambonet Autonomous system
8524 32 2 10 AUCEGYPT Autonomous System
10798 27 16 1 Standard Bank of South Africa
29975 26 10 9 Vodacom
15804 24 2 1 AS of The Way Out Internet So
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1425 1358 Videsh Sanchar Nigam Ltd. Aut
11492 1153 1141 Cable One
4323 1401 1035 Time Warner Telecom
18566 1028 1019 Covad Communications
6478 1132 994 AT&T Worldnet Services
9498 1003 937 BHARTI BT INTERNET LTD.
8151 1023 808 UniNet S.A. de C.V.
4134 1098 799 CHINANET-BACKBONE
17488 823 758 Hathway IP Over Cable Interne
22773 777 725 Cox Communications, Inc.
9583 1125 709 Sify Limited
5668 656 633 CenturyTel Internet Holdings,
7545 732 613 TPG Internet Pty Ltd
19262 780 591 Verizon Global Networks
6517 587 551 Yipes Communications, Inc.
18101 600 550 Reliance Infocom Ltd Internet
15270 581 542 PaeTec.net -a division of Pae
6197 1031 523 BellSouth Network Solutions,
9829 530 521 BSNL National Internet Backbo
19916 568 517 OLM LLC
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64250 RESERVED 59.144.44.0/24 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.64.0/19 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.96.0/20 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.112.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.176.0/21 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.188.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.192.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.196.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.200.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.204.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.208.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.212.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.216.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.220.0/22 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.240.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.242.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.244.0/23 9498 BHARTI BT INTERNET L
64250 RESERVED 122.167.246.0/23 9498 BHARTI BT INTERNET L
64520 PRIVATE 172.11.12.0/24 1803 SPRINT
64780 PRIVATE 195.221.30.0/24 1726 FR-RENATER-E-BELIN
65501 PRIVATE 202.153.21.0/24 23666 PT Sistelindo Mitral
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
101.13.13.0/24 8764 LIETUVOS-TELEKOMAS Autonomous
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
172.11.12.0/24 64520 PRIVATE ASN
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 /8:19 /9:9 /10:16 /11:37 /12:136
/13:265 /14:476 /15:930 /16:9639 /17:4096 /18:6665
/19:14193 /20:16467 /21:15203 /22:19584 /23:20424 /24:122812
/25:769 /26:1038 /27:541 /28:92 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1145 1153 Cable One
6478 1131 1132 AT&T Worldnet Services
18566 1010 1028 Covad Communications
9583 967 1125 Sify Limited
2386 910 1220 AT&T Data Communications Serv
7011 832 944 Citizens Utilities
7018 814 1475 AT&T WorldNet Services
4755 797 1425 Videsh Sanchar Nigam Ltd. Aut
23577 780 789 Korea Telecom (ATM-MPLS)
6197 775 1031 BellSouth Network Solutions,
9498 682 1003 BHARTI BT INTERNET LTD.
17488 642 823 Hathway IP Over Cable Interne
4766 607 809 Korea Telecom (KIX)
4323 594 1401 Time Warner Telecom
19916 563 568 OLM LLC
15270 544 581 PaeTec.net -a division of Pae
6517 542 587 Yipes Communications, Inc.
5668 519 656 CenturyTel Internet Holdings,
4668 507 517 LG-EDS Systems Inc.
18101 503 600 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 8:84 12:1787 13:1 15:20 16:3
17:3 18:13 20:36 24:972 25:1 32:60
33:3 38:351 40:61 41:314 44:2 47:4
52:4 55:3 56:3 57:20 58:474 59:409
60:376 61:984 62:929 63:1992 64:3254 65:2371
66:3517 67:821 68:676 69:1975 70:457 71:107
72:1421 73:5 74:679 75:260 76:133 77:382
78:205 80:823 81:836 82:573 83:364 84:624
85:831 86:344 87:568 88:288 89:1002 90:37
91:568 97:6 98:2 101:1 116:369 117:163
118:22 121:305 122:604 123:188 124:680 125:1006
128:272 129:210 130:137 131:365 132:54 133:9
134:195 135:34 136:188 137:82 138:157 139:74
140:513 141:174 142:398 143:274 144:314 145:47
146:334 147:124 148:422 149:187 150:111 151:157
152:89 153:121 154:11 155:256 156:162 157:217
158:160 159:176 160:135 161:99 162:173 163:182
164:487 165:395 166:287 167:302 168:504 169:123
170:383 171:22 172:3 189:74 190:1175 192:5717
193:3961 194:3207 195:2455 196:941 198:3823 199:3219
200:5294 201:1228 202:7354 203:7860 204:3924 205:2007
206:2424 207:2848 208:2873 209:3474 210:2462 211:1085
212:1294 213:1492 214:417 215:44 216:4081 217:1189
218:319 219:381 220:1011 221:413 222:263
End of report
