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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 06 Sep, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/09/06/0400
Analysis Summary
----------------
BGP routing table entries examined: 230204
Prefixes after maximum aggregation: 120223
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 111867
Total ASes present in the Internet Routing Table: 26114
Prefixes per ASN: 8.82
Origin-only ASes present in the Internet Routing Table: 22745
Origin ASes announcing only one prefix: 11073
Transit ASes present in the Internet Routing Table: 3369
Transit-only ASes present in the Internet Routing Table: 78
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: 1757996768
Equivalent to 104 /8s, 200 /16s and 230 /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: 121975
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53793
Total APNIC prefixes after maximum aggregation: 20891
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50713
Unique aggregates announced from the APNIC address blocks: 22500
APNIC Region origin ASes present in the Internet Routing Table: 3051
APNIC Prefixes per ASN: 16.62
APNIC Region origin ASes announcing only one prefix: 813
APNIC Region transit ASes present in the Internet Routing Table: 463
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 18
Number of APNIC addresses announced to Internet: 313575840
Equivalent to 18 /8s, 176 /16s and 201 /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: 108901
Total ARIN prefixes after maximum aggregation: 62924
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80246
Unique aggregates announced from the ARIN address blocks: 31904
ARIN Region origin ASes present in the Internet Routing Table: 11786
ARIN Prefixes per ASN: 6.81
ARIN Region origin ASes announcing only one prefix: 4511
ARIN Region transit ASes present in the Internet Routing Table: 1092
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 343760640
Equivalent to 20 /8s, 125 /16s and 95 /24s
Percentage of available ARIN address space announced: 75.9
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: 48078
Total RIPE prefixes after maximum aggregation: 30944
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44487
Unique aggregates announced from the RIPE address blocks: 29478
RIPE Region origin ASes present in the Internet Routing Table: 10135
RIPE Prefixes per ASN: 4.39
RIPE Region origin ASes announcing only one prefix: 5400
RIPE Region transit ASes present in the Internet Routing Table: 1601
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 326245760
Equivalent to 19 /8s, 114 /16s and 29 /24s
Percentage of available RIPE address space announced: 74.8
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: 16713
Total LACNIC prefixes after maximum aggregation: 4440
LACNIC Deaggregation factor: 3.76
Prefixes being announced from the LACNIC address blocks: 14807
Unique aggregates announced from the LACNIC address blocks: 7803
LACNIC Region origin ASes present in the Internet Routing Table: 862
LACNIC Prefixes per ASN: 17.18
LACNIC Region origin ASes announcing only one prefix: 283
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: 42191872
Equivalent to 2 /8s, 131 /16s and 204 /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: 2705
Total AfriNIC prefixes after maximum aggregation: 1012
AfriNIC Deaggregation factor: 2.67
Prefixes being announced from the AfriNIC address blocks: 2267
Unique aggregates announced from the AfriNIC address blocks: 1326
AfriNIC Region origin ASes present in the Internet Routing Table: 201
AfriNIC Prefixes per ASN: 11.28
AfriNIC Region origin ASes announcing only one prefix: 66
AfriNIC Region transit ASes present in the Internet Routing Table: 33
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7463680
Equivalent to 0 /8s, 113 /16s and 227 /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 1343 383 71 Videsh Sanchar Nigam Ltd. Aut
9583 1129 81 406 Sify Limited
4134 1076 11228 293 CHINANET-BACKBONE
9498 999 532 65 BHARTI BT INTERNET LTD.
4766 806 5441 320 Korea Telecom (KIX)
17488 796 52 55 Hathway IP Over Cable Interne
23577 789 34 684 Korea Telecom (ATM-MPLS)
7545 726 159 120 TPG Internet Pty Ltd
18101 595 119 50 Reliance Infocom Ltd Internet
4812 549 971 97 China Telecom (Shanghai)
1221 540 1951 421 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10903 63 Softbank BB Corp.
4808 483 779 114 CNCGROUP IP network: China169
9443 468 122 77 Primus Telecommunications
4802 438 117 154 Wantree Development
7474 377 216 267 SingTel Optus Pty Ltd
17974 377 130 13 PT TELEKOMUNIKASI INDONESIA
4837 366 5104 167 chinanet IDC center beijing n
9829 362 258 13 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1463 6074 996 AT&T WorldNet Services
4323 1321 991 372 Time Warner Telecom
2386 1216 632 738 AT&T Data Communications Serv
11492 1136 110 11 Cable One
6478 1131 325 168 AT&T Worldnet Services
6197 1028 718 508 BellSouth Network Solutions,
18566 1023 288 9 Covad Communications
174 973 6780 862 Cogent Communications
701 937 6577 715 UUNET Technologies, Inc.
7011 920 278 550 Citizens Utilities
20115 817 751 436 Charter Communications
1239 802 2718 563 Sprint
19262 770 2744 179 Verizon Global Networks
22773 763 2149 50 Cox Communications, Inc.
209 741 3836 586 Qwest
5668 657 176 23 CenturyTel Internet Holdings,
3356 599 10812 348 Level 3 Communications, LLC
6517 595 165 37 Yipes Communications, Inc.
852 574 1095 360 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 350 168 26 Goldenlines main autonomous s
3320 315 6035 262 Deutsche Telekom AG
3301 314 1456 294 TeliaNet Sweden
6746 290 130 266 Dynamic Network Technologies,
680 269 2045 257 DFN-IP service G-WiN
8708 262 420 241 Romania Data Systems S.A.
8220 259 445 242 COLT Telecommunications
3215 258 2424 98 France Telecom Transpac
8551 248 244 28 Bezeq International
3352 227 1868 38 Ibernet, Internet Access Netw
5089 224 1658 54 NTL Group Limited
3269 223 2839 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 196 1379 176 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
20858 186 34 3 EgyNet
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 898 1974 203 UniNet S.A. de C.V.
11830 514 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 374 114 60 Servicios Alestra S.A de C.V
7303 341 162 50 Telecom Argentina Stet-France
6471 330 75 33 ENTEL CHILE S.A.
14522 326 28 7 SatNet 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.
11664 271 30 13 Keytech SA
11556 235 128 3 Cable-Wireless Panama
10620 234 65 21 TVCABLE BOGOTA
6147 228 178 24 Telefonica Del Peru
6503 201 170 82 AVANTEL, S.A.
23216 194 16 43 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
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 286 870 226 The Internet Solution
8452 219 188 7 TEDATA
2018 149 301 115 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 41 21 29 Johnnic e-Ventures
8524 31 2 10 AUCEGYPT Autonomous System
10798 27 16 1 Standard Bank of South Africa
21280 25 4 3 Swift Global Kenya Ltd.Is an
21491 24 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1343 1272 Videsh Sanchar Nigam Ltd. Aut
11492 1136 1125 Cable One
18566 1023 1014 Covad Communications
6478 1131 963 AT&T Worldnet Services
4323 1321 949 Time Warner Telecom
9498 999 934 BHARTI BT INTERNET LTD.
4134 1076 783 CHINANET-BACKBONE
17488 796 741 Hathway IP Over Cable Interne
9583 1129 723 Sify Limited
22773 763 713 Cox Communications, Inc.
8151 898 695 UniNet S.A. de C.V.
5668 657 634 CenturyTel Internet Holdings,
7545 726 606 TPG Internet Pty Ltd
19262 770 591 Verizon Global Networks
6517 595 558 Yipes Communications, Inc.
18101 595 545 Reliance Infocom Ltd Internet
15270 574 536 PaeTec.net -a division of Pae
6197 1028 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 /11:37 /12:134
/13:261 /14:472 /15:920 /16:9625 /17:4075 /18:6600
/19:13979 /20:16213 /21:14895 /22:19174 /23:20054 /24:121317
/25:772 /26:1034 /27:504 /28:82 /29:5 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1130 1131 AT&T Worldnet Services
11492 1128 1136 Cable One
18566 1005 1023 Covad Communications
9583 971 1129 Sify Limited
2386 908 1216 AT&T Data Communications Serv
7011 813 920 Citizens Utilities
7018 811 1463 AT&T WorldNet Services
6197 781 1028 BellSouth Network Solutions,
23577 780 789 Korea Telecom (ATM-MPLS)
4755 727 1343 Videsh Sanchar Nigam Ltd. Aut
9498 670 999 BHARTI BT INTERNET LTD.
17488 619 796 Hathway IP Over Cable Interne
4766 604 806 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 501 595 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 24:967 25:1
32:56 33:3 38:346 40:60 41:320 44:2
47:4 52:4 55:3 56:3 57:25 58:473
59:387 60:367 61:1015 62:925 63:2002 64:3191
65:2369 66:3399 67:793 68:657 69:1972 70:450
71:105 72:1409 73:2 74:641 75:263 76:130
77:339 78:49 80:833 81:821 82:575 83:386
84:614 85:810 86:340 87:482 88:278 89:969
90:24 91:530 97:6 116:312 117:181 118:17
121:274 122:590 123:175 124:672 125:986 128:270
129:216 130:139 131:363 132:55 133:9 134:196
135:34 136:190 137:82 138:153 139:73 140:501
141:174 142:379 143:255 144:303 145:46 146:330
147:122 148:407 149:148 150:110 151:157 152:87
153:119 154:3 155:263 156:161 157:215 158:158
159:173 160:115 161:96 162:175 163:181 164:472
165:393 166:277 167:300 168:514 169:123 170:390
171:22 172:2 189:74 190:1076 192:5743 193:3976
194:3187 195:2292 196:955 198:3816 199:3286 200:5234
201:1194 202:7376 203:7701 204:3922 205:1968 206:2412
207:2877 208:2815 209:3484 210:2460 211:1089 212:1327
213:1462 214:415 215:41 216:3987 217:1198 218:327
219:382 220:1023 221:417 222:267
End of report
