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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 30 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/30/0400
Analysis Summary
----------------
BGP routing table entries examined: 229682
Prefixes after maximum aggregation: 119791
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 110751
Total ASes present in the Internet Routing Table: 26071
Prefixes per ASN: 8.81
Origin-only ASes present in the Internet Routing Table: 22694
Origin ASes announcing only one prefix: 11063
Transit ASes present in the Internet Routing Table: 3377
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: 20
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 9
Unregistered ASNs in the Routing Table: 6
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: 1755664608
Equivalent to 104 /8s, 165 /16s and 80 /24s
Percentage of available address space announced: 47.4
Percentage of allocated address space announced: 62.0
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 121718
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53953
Total APNIC prefixes after maximum aggregation: 20549
APNIC Deaggregation factor: 2.63
Prefixes being announced from the APNIC address blocks: 50867
Unique aggregates announced from the APNIC address blocks: 21525
APNIC Region origin ASes present in the Internet Routing Table: 3048
APNIC Prefixes per ASN: 16.69
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: 15
Number of APNIC addresses announced to Internet: 313030048
Equivalent to 18 /8s, 168 /16s and 117 /24s
Percentage of available APNIC address space announced: 77.5
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: 108693
Total ARIN prefixes after maximum aggregation: 62898
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80045
Unique aggregates announced from the ARIN address blocks: 31830
ARIN Region origin ASes present in the Internet Routing Table: 11763
ARIN Prefixes per ASN: 6.80
ARIN Region origin ASes announcing only one prefix: 4509
ARIN Region transit ASes present in the Internet Routing Table: 1091
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 342615296
Equivalent to 20 /8s, 107 /16s and 229 /24s
Percentage of available ARIN address space announced: 75.6
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: 47876
Total RIPE prefixes after maximum aggregation: 30882
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44294
Unique aggregates announced from the RIPE address blocks: 29408
RIPE Region origin ASes present in the Internet Routing Table: 10122
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5393
RIPE Region transit ASes present in the Internet Routing Table: 1611
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 325729408
Equivalent to 19 /8s, 106 /16s and 60 /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: 16417
Total LACNIC prefixes after maximum aggregation: 4425
LACNIC Deaggregation factor: 3.71
Prefixes being announced from the LACNIC address blocks: 14509
Unique aggregates announced from the LACNIC address blocks: 7799
LACNIC Region origin ASes present in the Internet Routing Table: 855
LACNIC Prefixes per ASN: 16.97
LACNIC Region origin ASes announcing only one prefix: 279
LACNIC Region transit ASes present in the Internet Routing Table: 145
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 42162432
Equivalent to 2 /8s, 131 /16s and 89 /24s
Percentage of available LACNIC address space announced: 62.8
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: 2728
Total AfriNIC prefixes after maximum aggregation: 1025
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 2291
Unique aggregates announced from the AfriNIC address blocks: 1335
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 11.12
AfriNIC Region origin ASes announcing only one prefix: 69
AfriNIC Region transit ASes present in the Internet Routing Table: 33
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 7457792
Equivalent to 0 /8s, 113 /16s and 204 /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 1341 383 74 Videsh Sanchar Nigam Ltd. Aut
4134 1335 11145 287 CHINANET-BACKBONE
9583 1132 100 105 Sify Limited
9498 992 532 66 BHARTI BT INTERNET LTD.
4766 803 5441 319 Korea Telecom (KIX)
17488 796 52 55 Hathway IP Over Cable Interne
23577 785 34 681 Korea Telecom (ATM-MPLS)
7545 729 159 121 TPG Internet Pty Ltd
18101 592 119 48 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 431 116 157 Wantree Development
7474 382 216 270 SingTel Optus Pty Ltd
17974 372 130 13 PT TELEKOMUNIKASI INDONESIA
4837 366 5104 167 chinanet IDC center beijing n
9829 359 257 10 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6073 991 AT&T WorldNet Services
4323 1323 992 373 Time Warner Telecom
2386 1216 618 749 AT&T Data Communications Serv
11492 1138 110 11 Cable One
6478 1129 323 166 AT&T Worldnet Services
6197 1030 718 510 BellSouth Network Solutions,
18566 1022 288 9 Covad Communications
174 975 6780 863 Cogent Communications
701 942 6578 721 UUNET Technologies, Inc.
7011 924 279 555 Citizens Utilities
20115 816 750 435 Charter Communications
1239 804 2721 565 Sprint
19262 767 2743 186 Verizon Global Networks
22773 762 2149 50 Cox Communications, Inc.
209 737 3820 583 Qwest
5668 651 174 24 CenturyTel Internet Holdings,
6517 588 165 37 Yipes Communications, Inc.
3356 586 10811 345 Level 3 Communications, LLC
852 576 1095 361 Telus Advanced Communications
855 570 254 73 Canadian Research Network
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 491 1921 393 UUNET - Commercial IP service
24863 367 57 40 LINKdotNET AS number
9116 346 168 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,
680 265 2061 256 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
3269 221 2775 73 TELECOM ITALIA
9121 214 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
12479 192 578 6 Uni2 Autonomous System
3300 191 172 92 AUCS Communications Services
3246 187 253 177 Song Networks
1257 186 1195 170 SWIPnet Swedish IP Network
20858 186 34 3 EgyNet
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 904 1974 205 UniNet S.A. de C.V.
11830 479 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 375 115 61 Servicios Alestra S.A de C.V
7303 336 176 45 Telecom Argentina Stet-France
14522 334 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.
11556 235 128 3 Cable-Wireless Panama
6147 227 178 24 Telefonica Del Peru
10620 218 61 20 TVCABLE BOGOTA
6503 201 170 82 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
20299 179 25 31 NEWCOM AMERICAS
8163 177 11 6 METROTEL REDES S.A.
21826 170 30 60 INTERCABLE
7738 169 506 23 Telecomunicacoes da Bahia S.A
19169 164 12 15 Telconet
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 868 224 The Internet Solution
8452 221 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
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
2561 62 6 2 Egyptian Universities Network
23889 60 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 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 1341 1267 Videsh Sanchar Nigam Ltd. Aut
11492 1138 1127 Cable One
4134 1335 1048 CHINANET-BACKBONE
9583 1132 1027 Sify Limited
18566 1022 1013 Covad Communications
6478 1129 963 AT&T Worldnet Services
4323 1323 950 Time Warner Telecom
9498 992 926 BHARTI BT INTERNET LTD.
17488 796 741 Hathway IP Over Cable Interne
22773 762 712 Cox Communications, Inc.
8151 904 699 UniNet S.A. de C.V.
5668 651 627 CenturyTel Internet Holdings,
7545 729 608 TPG Internet Pty Ltd
19262 767 581 Verizon Global Networks
6517 588 551 Yipes Communications, Inc.
18101 592 544 Reliance Infocom Ltd Internet
15270 570 532 PaeTec.net -a division of Pae
6197 1030 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
65007 PRIVATE 91.195.18.0/23 24989 IX Europe Frankfurt
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
/13:260 /14:471 /15:918 /16:9613 /17:4070 /18:6592
/19:13967 /20:16162 /21:14928 /22:19144 /23:20083 /24:120849
/25:782 /26:1029 /27:505 /28:83 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1130 1138 Cable One
6478 1128 1129 AT&T Worldnet Services
18566 1004 1022 Covad Communications
9583 966 1132 Sify Limited
2386 908 1216 AT&T Data Communications Serv
7011 819 924 Citizens Utilities
7018 816 1474 AT&T WorldNet Services
6197 783 1030 BellSouth Network Solutions,
23577 776 785 Korea Telecom (ATM-MPLS)
4755 724 1341 Videsh Sanchar Nigam Ltd. Aut
9498 665 992 BHARTI BT INTERNET LTD.
17488 619 796 Hathway IP Over Cable Interne
4766 601 803 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 556 1323 Time Warner Telecom
6517 554 588 Yipes Communications, Inc.
15270 534 570 PaeTec.net -a division of Pae
5668 516 651 CenturyTel Internet Holdings,
4668 506 516 LG-EDS Systems Inc.
18101 499 592 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:87 12:1811 13:1 15:19
16:3 17:3 18:13 20:36 24:966 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
59:390 60:367 61:1018 62:933 63:2003 64:3186
65:2367 66:3403 67:782 68:651 69:1967 70:446
71:104 72:1390 73:2 74:639 75:262 76:126
77:305 78:45 80:828 81:810 82:584 83:357
84:601 85:808 86:339 87:491 88:278 89:967
90:25 91:517 97:5 116:314 117:150 118:1
121:270 122:593 123:168 124:672 125:984 128:275
129:216 130:140 131:362 132:55 133:9 134:197
135:34 136:189 137:79 138:152 139:72 140:499
141:173 142:379 143:256 144:299 145:46 146:328
147:122 148:413 149:147 150:111 151:159 152:87
153:118 154:3 155:262 156:161 157:213 158:158
159:171 160:113 161:96 162:175 163:180 164:480
165:394 166:275 167:297 168:514 169:122 170:387
171:22 172:2 189:69 190:999 192:5748 193:3971
194:3190 195:2294 196:979 198:3819 199:3276 200:5111
201:1173 202:7364 203:7685 204:3924 205:1976 206:2418
207:2805 208:2801 209:3485 210:2468 211:1089 212:1330
213:1477 214:417 215:41 216:3972 217:1178 218:364
219:381 220:1028 221:415 222:264
End of report
