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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 29 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/29/0400
Analysis Summary
----------------
BGP routing table entries examined: 229744
Prefixes after maximum aggregation: 119913
Deaggregation factor: 1.92
Unique aggregates announced to Internet: 109553
Total ASes present in the Internet Routing Table: 26033
Prefixes per ASN: 8.83
Origin-only ASes present in the Internet Routing Table: 22663
Origin ASes announcing only one prefix: 11029
Transit ASes present in the Internet Routing Table: 3370
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: 21
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: 1756328672
Equivalent to 104 /8s, 175 /16s and 114 /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: 121807
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53880
Total APNIC prefixes after maximum aggregation: 20580
APNIC Deaggregation factor: 2.62
Prefixes being announced from the APNIC address blocks: 50787
Unique aggregates announced from the APNIC address blocks: 21457
APNIC Region origin ASes present in the Internet Routing Table: 3042
APNIC Prefixes per ASN: 16.70
APNIC Region origin ASes announcing only one prefix: 809
APNIC Region transit ASes present in the Internet Routing Table: 467
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 312947104
Equivalent to 18 /8s, 167 /16s and 49 /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: 108670
Total ARIN prefixes after maximum aggregation: 62909
ARIN Deaggregation factor: 1.73
Prefixes being announced from the ARIN address blocks: 80035
Unique aggregates announced from the ARIN address blocks: 31805
ARIN Region origin ASes present in the Internet Routing Table: 11779
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4515
ARIN Region transit ASes present in the Internet Routing Table: 1083
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 342624768
Equivalent to 20 /8s, 108 /16s and 10 /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: 48043
Total RIPE prefixes after maximum aggregation: 30972
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44451
Unique aggregates announced from the RIPE address blocks: 28284
RIPE Region origin ASes present in the Internet Routing Table: 10074
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5358
RIPE Region transit ASes present in the Internet Routing Table: 1607
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 326355840
Equivalent to 19 /8s, 115 /16s and 203 /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: 16415
Total LACNIC prefixes after maximum aggregation: 4418
LACNIC Deaggregation factor: 3.72
Prefixes being announced from the LACNIC address blocks: 14513
Unique aggregates announced from the LACNIC address blocks: 7817
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: 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: 42163712
Equivalent to 2 /8s, 131 /16s and 94 /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: 2722
Total AfriNIC prefixes after maximum aggregation: 1022
AfriNIC Deaggregation factor: 2.66
Prefixes being announced from the AfriNIC address blocks: 2284
Unique aggregates announced from the AfriNIC address blocks: 1333
AfriNIC Region origin ASes present in the Internet Routing Table: 206
AfriNIC Prefixes per ASN: 11.09
AfriNIC Region origin ASes announcing only one prefix: 68
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: 7455488
Equivalent to 0 /8s, 113 /16s and 195 /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 1339 383 74 Videsh Sanchar Nigam Ltd. Aut
4134 1337 11150 289 CHINANET-BACKBONE
9583 1131 100 105 Sify Limited
9498 992 532 66 BHARTI BT INTERNET LTD.
4766 803 5441 319 Korea Telecom (KIX)
17488 795 52 54 Hathway IP Over Cable Interne
23577 786 34 683 Korea Telecom (ATM-MPLS)
7545 725 159 119 TPG Internet Pty Ltd
18101 592 119 48 Reliance Infocom Ltd Internet
4812 547 968 96 China Telecom (Shanghai)
1221 543 1951 424 Telstra Pty Ltd
4668 516 68 10 LG-EDS Systems Inc.
17676 503 10919 64 Softbank BB Corp.
4808 482 771 111 CNCGROUP IP network: China169
9443 464 122 77 Primus Telecommunications
4802 431 116 157 Wantree Development
7474 382 216 270 SingTel Optus Pty Ltd
4837 366 5104 167 chinanet IDC center beijing n
17974 364 130 13 PT TELEKOMUNIKASI INDONESIA
9829 363 258 14 BSNL National Internet Backbo
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1475 6074 992 AT&T WorldNet Services
4323 1325 992 373 Time Warner Telecom
2386 1217 618 750 AT&T Data Communications Serv
6478 1139 323 158 AT&T Worldnet Services
11492 1138 110 11 Cable One
6197 1029 718 509 BellSouth Network Solutions,
18566 1020 288 9 Covad Communications
174 975 6780 863 Cogent Communications
701 944 6578 723 UUNET Technologies, Inc.
7011 924 279 555 Citizens Utilities
20115 817 750 436 Charter Communications
1239 800 2721 565 Sprint
19262 767 2743 186 Verizon Global Networks
22773 762 2149 50 Cox Communications, Inc.
209 735 3820 581 Qwest
5668 651 174 24 CenturyTel Internet Holdings,
6517 588 165 37 Yipes Communications, Inc.
852 576 1095 361 Telus Advanced Communications
3356 571 10826 339 Level 3 Communications, LLC
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
2119 405 991 285 Telenor Internet Access
24863 366 57 40 LINKdotNET AS number
9116 346 168 26 Goldenlines main autonomous s
3301 315 5296 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 226 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 194 578 6 Uni2 Autonomous System
1257 192 1195 170 SWIPnet Swedish IP Network
3300 191 172 92 AUCS Communications Services
3246 187 253 177 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 931 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.
7738 169 506 23 Telecomunicacoes da Bahia S.A
21826 169 30 59 INTERCABLE
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 222 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 140 301 115 Tertiary Education Network
5536 127 16 7 Internet Egypt Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
33776 100 6 3 Starcomms Nigeria Limited
24835 88 48 7 RAYA Telecom - Egypt
15475 76 84 4 Nile Online
2905 74 174 71 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
16637 46 21 29 Johnnic e-Ventures
33774 46 29 24 AS Number for Telecom Algeria
8524 31 2 10 AUCEGYPT Autonomous System
21280 30 4 4 Swift Global Kenya Ltd.Is an
12455 29 6 3 Jambonet Autonomous system
10798 27 16 1 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1339 1265 Videsh Sanchar Nigam Ltd. Aut
11492 1138 1127 Cable One
4134 1337 1048 CHINANET-BACKBONE
9583 1131 1026 Sify Limited
18566 1020 1011 Covad Communications
6478 1139 981 AT&T Worldnet Services
4323 1325 952 Time Warner Telecom
9498 992 926 BHARTI BT INTERNET LTD.
17488 795 741 Hathway IP Over Cable Interne
8151 931 726 UniNet S.A. de C.V.
22773 762 712 Cox Communications, Inc.
5668 651 627 CenturyTel Internet Holdings,
7545 725 606 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 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 /8:19 /9:9 /10:15 /11:37 /12:134
/13:260 /14:471 /15:917 /16:9612 /17:4070 /18:6591
/19:13951 /20:16138 /21:14933 /22:19209 /23:20124 /24:120842
/25:783 /26:1029 /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 1138 1139 AT&T Worldnet Services
11492 1130 1138 Cable One
18566 1002 1020 Covad Communications
9583 965 1131 Sify Limited
2386 909 1217 AT&T Data Communications Serv
7011 819 924 Citizens Utilities
7018 816 1475 AT&T WorldNet Services
6197 782 1029 BellSouth Network Solutions,
23577 777 786 Korea Telecom (ATM-MPLS)
4755 722 1339 Videsh Sanchar Nigam Ltd. Aut
9498 665 992 BHARTI BT INTERNET LTD.
17488 618 795 Hathway IP Over Cable Interne
4766 601 803 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 558 1325 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 12:1810 13:1 15:19
16:3 17:3 18:13 20:36 24:964 25:1
32:56 33:3 38:347 40:60 41:321 44:2
47:4 52:4 55:3 56:3 57:25 58:469
59:389 60:367 61:1016 62:934 63:2004 64:3188
65:2372 66:3400 67:780 68:651 69:1965 70:447
71:104 72:1389 73:2 74:640 75:261 76:126
77:299 78:43 80:826 81:831 82:580 83:378
84:601 85:855 86:339 87:482 88:277 89:960
90:25 91:505 97:5 116:313 117:145 118:1
121:269 122:592 123:166 124:672 125:991 128:276
129:214 130:140 131:363 132:55 133:9 134:197
135:34 136:189 137:81 138:149 139:72 140:498
141:173 142:379 143:255 144:298 145:46 146:328
147:122 148:412 149:142 150:111 151:159 152:88
153:122 154:3 155:263 156:161 157:213 158:158
159:171 160:113 161:96 162:175 163:180 164:480
165:394 166:275 167:298 168:511 169:122 170:388
171:22 172:2 189:71 190:992 192:5747 193:3963
194:3184 195:2268 196:981 198:3824 199:3273 200:5111
201:1179 202:7372 203:7680 204:3920 205:1985 206:2417
207:2800 208:2803 209:3484 210:2466 211:1090 212:1329
213:1467 214:418 215:41 216:3973 217:1192 218:361
219:379 220:1025 221:413 222:264
End of report
