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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 03 Sep, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/09/03/0400
Analysis Summary
----------------
BGP routing table entries examined: 229574
Prefixes after maximum aggregation: 119830
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 110844
Total ASes present in the Internet Routing Table: 26095
Prefixes per ASN: 8.80
Origin-only ASes present in the Internet Routing Table: 22721
Origin ASes announcing only one prefix: 11069
Transit ASes present in the Internet Routing Table: 3374
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: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 5
Prefixes from 32-bit ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1756715232
Equivalent to 104 /8s, 181 /16s and 88 /24s
Percentage of available address space announced: 47.4
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121545
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53555
Total APNIC prefixes after maximum aggregation: 20587
APNIC Deaggregation factor: 2.60
Prefixes being announced from the APNIC address blocks: 50474
Unique aggregates announced from the APNIC address blocks: 21490
APNIC Region origin ASes present in the Internet Routing Table: 3049
APNIC Prefixes per ASN: 16.55
APNIC Region origin ASes announcing only one prefix: 811
APNIC Region transit ASes present in the Internet Routing Table: 466
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 313727648
Equivalent to 18 /8s, 179 /16s and 26 /24s
Percentage of available APNIC address space announced: 77.7
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: 108752
Total ARIN prefixes after maximum aggregation: 62882
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80129
Unique aggregates announced from the ARIN address blocks: 31880
ARIN Region origin ASes present in the Internet Routing Table: 11778
ARIN Prefixes per ASN: 6.80
ARIN Region origin ASes announcing only one prefix: 4511
ARIN Region transit ASes present in the Internet Routing Table: 1089
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 14
Number of ARIN addresses announced to Internet: 342791680
Equivalent to 20 /8s, 110 /16s and 150 /24s
Percentage of available ARIN address space announced: 75.7
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: 48012
Total RIPE prefixes after maximum aggregation: 30901
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44428
Unique aggregates announced from the RIPE address blocks: 29467
RIPE Region origin ASes present in the Internet Routing Table: 10127
RIPE Prefixes per ASN: 4.39
RIPE Region origin ASes announcing only one prefix: 5399
RIPE Region transit ASes present in the Internet Routing Table: 1604
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 325807744
Equivalent to 19 /8s, 107 /16s and 110 /24s
Percentage of available RIPE address space announced: 74.7
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
40960-44031
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: 16508
Total LACNIC prefixes after maximum aggregation: 4426
LACNIC Deaggregation factor: 3.73
Prefixes being announced from the LACNIC address blocks: 14605
Unique aggregates announced from the LACNIC address blocks: 7821
LACNIC Region origin ASes present in the Internet Routing Table: 858
LACNIC Prefixes per ASN: 17.02
LACNIC Region origin ASes announcing only one prefix: 280
LACNIC Region transit ASes present in the Internet Routing Table: 146
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42180864
Equivalent to 2 /8s, 131 /16s and 161 /24s
Percentage of available LACNIC address space announced: 62.9
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: 2733
Total AfriNIC prefixes after maximum aggregation: 1022
AfriNIC Deaggregation factor: 2.67
Prefixes being announced from the AfriNIC address blocks: 2290
Unique aggregates announced from the AfriNIC address blocks: 1333
AfriNIC Region origin ASes present in the Internet Routing Table: 205
AfriNIC Prefixes per ASN: 11.17
AfriNIC Region origin ASes announcing only one prefix: 68
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 7457536
Equivalent to 0 /8s, 113 /16s and 203 /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 1345 383 74 Videsh Sanchar Nigam Ltd. Aut
9583 1134 100 106 Sify Limited
4134 1072 11194 290 CHINANET-BACKBONE
9498 995 532 65 BHARTI BT INTERNET LTD.
4766 805 5441 321 Korea Telecom (KIX)
17488 796 52 55 Hathway IP Over Cable Interne
23577 786 34 681 Korea Telecom (ATM-MPLS)
7545 727 159 121 TPG Internet Pty Ltd
18101 596 119 51 Reliance Infocom Ltd Internet
4812 547 968 96 China Telecom (Shanghai)
1221 542 1951 424 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 483 779 114 CNCGROUP IP network: China169
9443 464 122 77 Primus Telecommunications
4802 432 116 158 Wantree Development
7474 378 216 267 SingTel Optus Pty Ltd
17974 373 130 13 PT TELEKOMUNIKASI INDONESIA
4837 366 5104 167 chinanet IDC center beijing n
9829 363 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6074 992 AT&T WorldNet Services
4323 1321 992 373 Time Warner Telecom
2386 1214 633 736 AT&T Data Communications Serv
11492 1136 110 11 Cable One
6478 1134 325 169 AT&T Worldnet Services
6197 1029 718 509 BellSouth Network Solutions,
18566 1023 288 9 Covad Communications
174 975 6780 863 Cogent Communications
701 938 6577 716 UUNET Technologies, Inc.
7011 919 278 549 Citizens Utilities
20115 817 751 436 Charter Communications
1239 804 2719 565 Sprint
19262 770 2744 179 Verizon Global Networks
22773 762 2149 50 Cox Communications, Inc.
209 739 3836 584 Qwest
5668 657 176 23 CenturyTel Internet Holdings,
6517 595 165 37 Yipes Communications, Inc.
3356 587 10811 344 Level 3 Communications, LLC
852 576 1095 361 Telus Advanced Communications
15270 574 160 38 PaeTec.net -a division of Pae
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 492 1923 394 UUNET - Commercial IP service
24863 367 57 40 LINKdotNET AS number
9116 345 168 26 Goldenlines main autonomous s
3301 314 1456 294 TeliaNet Sweden
3320 314 6035 261 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8708 262 420 241 Romania Data Systems S.A.
8220 260 445 243 COLT Telecommunications
3215 258 2424 98 France Telecom Transpac
8551 248 244 28 Bezeq International
3352 227 1868 38 Ibernet, Internet Access Netw
5089 222 1658 54 NTL Group Limited
3269 221 2775 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 192 1195 170 SWIPnet Swedish IP Network
3300 192 172 92 AUCS Communications Services
12479 192 578 6 Uni2 Autonomous System
3246 187 253 177 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 901 1974 204 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 431 26 9 NSS, S.A.
11172 371 114 57 Servicios Alestra S.A de C.V
7303 342 162 49 Telecom Argentina Stet-France
14522 333 28 7 SatNet S.A.
6471 322 75 33 ENTEL CHILE S.A.
22047 318 246 13 VTR PUNTO NET S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 278 104 9 Prima S.A.
10620 237 65 21 TVCABLE BOGOTA
11556 235 128 3 Cable-Wireless Panama
6147 227 178 24 Telefonica Del Peru
6503 200 170 82 AVANTEL, S.A.
23216 195 17 44 RAMtelecom Telecomunicaciones
20299 180 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
21826 171 30 58 INTERCABLE
7738 169 506 23 Telecomunicacoes da Bahia S.A
19169 167 12 19 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 284 870 225 The Internet Solution
8452 220 188 7 TEDATA
2018 148 301 115 Tertiary Education Network
6713 142 135 11 Itissalat Al-MAGHRIB
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
33776 100 6 3 Starcomms Nigeria Limited
24835 87 48 6 RAYA Telecom - Egypt
15475 75 84 4 Nile Online
2905 74 174 71 The Internetworking Company o
23889 69 24 15 MAURITIUS TELECOM
2561 62 6 2 Egyptian Universities Network
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 46 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
12455 29 6 3 Jambonet Autonomous system
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 27 16 1 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1345 1271 Videsh Sanchar Nigam Ltd. Aut
11492 1136 1125 Cable One
9583 1134 1028 Sify Limited
18566 1023 1014 Covad Communications
6478 1134 965 AT&T Worldnet Services
4323 1321 948 Time Warner Telecom
9498 995 930 BHARTI BT INTERNET LTD.
4134 1072 782 CHINANET-BACKBONE
17488 796 741 Hathway IP Over Cable Interne
22773 762 712 Cox Communications, Inc.
8151 901 697 UniNet S.A. de C.V.
5668 657 634 CenturyTel Internet Holdings,
7545 727 606 TPG Internet Pty Ltd
19262 770 591 Verizon Global Networks
6517 595 558 Yipes Communications, Inc.
18101 596 545 Reliance Infocom Ltd Internet
15270 574 536 PaeTec.net -a division of Pae
6197 1029 520 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 516 506 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64586 PRIVATE 192.170.73.0/24 4845 Chung Hsiao East Roa
64501 RESERVED 195.189.160.0/24 35041 Crystone Autonomous
64586 PRIVATE 202.165.137.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.140.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.141.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.142.0/24 4845 Chung Hsiao East Roa
64586 PRIVATE 202.165.143.0/24 4845 Chung Hsiao East Roa
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
7.1.1.0/24 1239 Sprint
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
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 /10:15 /11:38 /12:134
/13:260 /14:471 /15:919 /16:9615 /17:4070 /18:6594
/19:13969 /20:16140 /21:14849 /22:19137 /23:20043 /24:120888
/25:777 /26:1028 /27:504 /28:83 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1133 1134 AT&T Worldnet Services
11492 1128 1136 Cable One
18566 1005 1023 Covad Communications
9583 968 1134 Sify Limited
2386 905 1214 AT&T Data Communications Serv
7018 816 1474 AT&T WorldNet Services
7011 813 919 Citizens Utilities
6197 782 1029 BellSouth Network Solutions,
23577 777 786 Korea Telecom (ATM-MPLS)
4755 726 1345 Videsh Sanchar Nigam Ltd. Aut
9498 669 995 BHARTI BT INTERNET LTD.
17488 619 796 Hathway IP Over Cable Interne
4766 603 805 Korea Telecom (KIX)
19916 563 568 OLM LLC
6517 561 595 Yipes Communications, Inc.
4323 555 1321 Time Warner Telecom
15270 538 574 PaeTec.net -a division of Pae
5668 522 657 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 500 596 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:86 12:1806 13:1 15:19
16:3 17:3 18:13 20:36 24:963 25:1
32:56 33:3 38:348 40:60 41:321 44:2
47:4 52:4 55:3 56:3 57:25 58:470
59:386 60:367 61:1014 62:936 63:2003 64:3184
65:2367 66:3375 67:809 68:658 69:1969 70:449
71:105 72:1397 73:2 74:642 75:263 76:126
77:327 78:47 80:827 81:825 82:577 83:383
84:606 85:806 86:341 87:485 88:279 89:975
90:25 91:524 97:5 116:315 117:151 118:9
121:271 122:594 123:170 124:674 125:988 128:269
129:216 130:139 131:363 132:55 133:9 134:195
135:34 136:189 137:82 138:153 139:72 140:499
141:174 142:379 143:255 144:297 145:46 146:329
147:123 148:408 149:148 150:110 151:157 152:86
153:119 154:3 155:264 156:160 157:213 158:158
159:170 160:113 161:95 162:175 163:180 164:476
165:394 166:275 167:300 168:515 169:123 170:390
171:22 172:2 189:71 190:1017 192:5742 193:3974
194:3184 195:2270 196:974 198:3812 199:3281 200:5108
201:1195 202:7403 203:7714 204:3925 205:1964 206:2415
207:2848 208:2801 209:3480 210:2453 211:997 212:1328
213:1473 214:407 215:41 216:3983 217:1193 218:325
219:381 220:1024 221:414 222:262
End of report
