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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 13 Jul, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/07/13/0400
Analysis Summary
----------------
BGP routing table entries examined: 225440
Prefixes after maximum aggregation: 118579
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109377
Total ASes present in the Internet Routing Table: 25670
Prefixes per ASN: 8.78
Origin-only ASes present in the Internet Routing Table: 22388
Origin ASes announcing only one prefix: 10890
Transit ASes present in the Internet Routing Table: 3282
Transit-only ASes present in the Internet Routing Table: 72
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (16327) 21
Prefixes from unregistered ASNs in the Routing Table: 5
Unregistered ASNs in the Routing Table: 9
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1736226400
Equivalent to 103 /8s, 124 /16s and 182 /24s
Percentage of available address space announced: 46.8
Percentage of allocated address space announced: 62.1
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 118556
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52774
Total APNIC prefixes after maximum aggregation: 20560
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 49670
Unique aggregates announced from the APNIC address blocks: 21758
APNIC Region origin ASes present in the Internet Routing Table: 3007
APNIC Prefixes per ASN: 16.52
APNIC Region origin ASes announcing only one prefix: 803
APNIC Region transit ASes present in the Internet Routing Table: 453
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 25
Number of APNIC addresses announced to Internet: 303484320
Equivalent to 18 /8s, 22 /16s and 205 /24s
Percentage of available APNIC address space announced: 75.2
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: 107253
Total ARIN prefixes after maximum aggregation: 62262
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78889
Unique aggregates announced from the ARIN address blocks: 31191
ARIN Region origin ASes present in the Internet Routing Table: 11674
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4506
ARIN Region transit ASes present in the Internet Routing Table: 1062
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 339014208
Equivalent to 20 /8s, 52 /16s and 242 /24s
Percentage of available ARIN address space announced: 74.8
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: 47344
Total RIPE prefixes after maximum aggregation: 30457
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43717
Unique aggregates announced from the RIPE address blocks: 28877
RIPE Region origin ASes present in the Internet Routing Table: 9895
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5255
RIPE Region transit ASes present in the Internet Routing Table: 1561
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 322481728
Equivalent to 19 /8s, 56 /16s and 174 /24s
Percentage of available RIPE address space announced: 80.1
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, 80/5, 88/6, 92/7, 193/8, 194/7,
212/7 and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 15469
Total LACNIC prefixes after maximum aggregation: 4270
LACNIC Deaggregation factor: 3.62
Prefixes being announced from the LACNIC address blocks: 13525
Unique aggregates announced from the LACNIC address blocks: 7626
LACNIC Region origin ASes present in the Internet Routing Table: 824
LACNIC Prefixes per ASN: 16.41
LACNIC Region origin ASes announcing only one prefix: 266
LACNIC Region transit ASes present in the Internet Routing Table: 139
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 40537856
Equivalent to 2 /8s, 106 /16s and 143 /24s
Percentage of available LACNIC address space announced: 60.4
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: 2592
Total AfriNIC prefixes after maximum aggregation: 1020
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 2100
Unique aggregates announced from the AfriNIC address blocks: 1265
AfriNIC Region origin ASes present in the Internet Routing Table: 197
AfriNIC Prefixes per ASN: 10.66
AfriNIC Region origin ASes announcing only one prefix: 60
AfriNIC Region transit ASes present in the Internet Routing Table: 35
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6298624
Equivalent to 0 /8s, 96 /16s and 28 /24s
Percentage of available AfriNIC address space announced: 18.8
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
4134 1352 10523 283 CHINANET-BACKBONE
4755 1271 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1115 80 376 Sify Limited
9498 964 533 68 BHARTI BT INTERNET LTD.
23577 796 34 689 Korea Telecom (ATM-MPLS)
4766 783 4927 314 Korea Telecom (KIX)
17488 717 63 53 Hathway IP Over Cable Interne
7545 683 149 110 TPG Internet Pty Ltd
18101 564 117 39 Reliance Infocom Ltd Internet
1221 546 1951 425 Telstra Pty Ltd
4812 519 903 92 China Telecom (Shanghai)
4668 510 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 471 122 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 411 218 270 SingTel Optus Pty Ltd
17974 368 130 13 PT TELEKOMUNIKASI INDONESIA
2907 362 1701 302 SINET Japan
9829 362 258 14 BSNL National Internet Backbo
17557 352 45 173 Pakistan Telecom
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1463 6074 988 AT&T WorldNet Services
4323 1323 1021 375 Time Warner Telecom
2386 1209 616 751 AT&T Data Communications Serv
6478 1127 370 173 AT&T Worldnet Services
11492 1099 107 27 Cable One
6197 1027 717 509 BellSouth Network Solutions,
18566 1014 288 9 Covad Communications
174 959 6775 851 Cogent Communications
701 946 6565 722 UUNET Technologies, Inc.
7011 851 252 537 Citizens Utilities
1239 814 2741 581 Sprint
20115 797 731 427 Charter Communications
19262 758 2747 185 Verizon Global Networks
209 739 3859 575 Qwest
22773 734 1892 46 Cox Communications, Inc.
5668 618 169 21 CenturyTel Internet Holdings,
7029 612 488 79 Alltel Information Services,
855 575 254 73 Canadian Research Network
852 572 1093 363 Telus Advanced Communications
6198 568 613 260 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 513 1075 136 Telenor Internet Access
702 500 1921 401 UUNET - Commercial IP service
24863 358 56 37 LINKdotNET AS number
9116 316 168 25 Goldenlines main autonomous s
3301 310 1455 290 TeliaNet Sweden
3320 309 6034 256 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 265 2045 256 DFN-IP service G-WiN
3215 255 2376 96 France Telecom Transpac
8220 251 444 243 COLT Telecommunications
8708 250 420 239 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
3352 218 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
1257 194 1195 172 SWIPnet Swedish IP Network
3292 193 1379 173 TDC Tele Danmark
12479 190 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 857 1918 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 373 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 318 246 13 VTR PUNTO NET S.A.
7303 305 148 35 Telecom Argentina Stet-France
6471 297 74 33 ENTEL CHILE S.A.
14117 279 19 15 Telefonica del Sur S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
6503 208 172 85 AVANTEL, S.A.
10620 208 59 14 TVCABLE BOGOTA
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 178 28 7 SatNet S.A.
8163 175 11 8 METROTEL REDES S.A.
7738 156 506 23 Telecomunicacoes da Bahia S.A
20299 156 23 12 NEWCOM AMERICAS
21826 156 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 276 867 221 The Internet Solution
8452 230 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
5536 124 8 10 Internet Egypt Network
33783 124 8 12 EEPAD TISP TELECOM & INTERNET
24835 86 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
15475 76 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 50 16 15 MAURITIUS TELECOM
5713 46 294 36 Telkom SA Ltd
33774 44 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 35 2 6 Starcomms Nigeria Limited
12455 34 6 3 Jambonet Autonomous system
8524 32 2 8 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1271 1199 Videsh Sanchar Nigam Ltd. Aut
11492 1099 1072 Cable One
4134 1352 1069 CHINANET-BACKBONE
18566 1014 1005 Covad Communications
6478 1127 954 AT&T Worldnet Services
4323 1323 948 Time Warner Telecom
9498 964 896 BHARTI BT INTERNET LTD.
9583 1115 739 Sify Limited
22773 734 688 Cox Communications, Inc.
17488 717 664 Hathway IP Over Cable Interne
8151 857 649 UniNet S.A. de C.V.
5668 618 597 CenturyTel Internet Holdings,
19262 758 573 Verizon Global Networks
7545 683 573 TPG Internet Pty Ltd
7029 612 533 Alltel Information Services,
18101 564 525 Reliance Infocom Ltd Internet
6517 561 524 Yipes Communications, Inc.
6197 1027 518 BellSouth Network Solutions,
19916 568 517 OLM LLC
15270 555 517 PaeTec.net -a division of Pae
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65332 PRIVATE 63.166.106.192/27 1803 SPRINT
43185 UNALLOCATED 77.95.208.0/21 12779 ITGATE.Net
65535 PRIVATE 200.62.98.0/24 7137 TELEMATIX/ ENITEL
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
22895 UNALLOCATED 216.174.38.0/24 19094 Adelphia Business So
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 /11:36 /12:129
/13:253 /14:466 /15:901 /16:9547 /17:4013 /18:6495
/19:13720 /20:15983 /21:14463 /22:18798 /23:19728 /24:118513
/25:776 /26:986 /27:478 /28:78 /29:8 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1117 1127 AT&T Worldnet Services
11492 1090 1099 Cable One
18566 996 1014 Covad Communications
9583 956 1115 Sify Limited
2386 902 1209 AT&T Data Communications Serv
7018 794 1463 AT&T WorldNet Services
23577 787 796 Korea Telecom (ATM-MPLS)
6197 780 1027 BellSouth Network Solutions,
7011 750 851 Citizens Utilities
4755 666 1271 Videsh Sanchar Nigam Ltd. Aut
9498 639 964 BHARTI BT INTERNET LTD.
4766 588 783 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 555 1323 Time Warner Telecom
17488 539 717 Hathway IP Over Cable Interne
6517 526 561 Yipes Communications, Inc.
15270 519 555 PaeTec.net -a division of Pae
4668 500 510 LG-EDS Systems Inc.
5668 483 618 CenturyTel Internet Holdings,
18101 478 564 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:83 9:1 12:1804 15:19
16:3 17:3 18:11 20:37 24:938 25:1
32:50 33:3 38:334 40:60 41:209 44:2
47:3 52:4 55:3 56:3 57:25 58:428
59:379 60:324 61:982 62:871 63:1973 64:3128
65:2349 66:3299 67:740 68:625 69:1897 70:433
71:106 72:1346 73:2 74:570 75:267 76:73
77:278 78:19 80:830 81:817 82:669 83:383
84:486 85:860 86:340 87:451 88:287 89:906
90:7 91:414 97:6 98:4 116:249 117:49
121:228 122:576 123:124 124:845 125:939 128:288
129:222 130:139 131:360 132:54 133:9 134:195
135:38 136:186 137:81 138:149 139:72 140:497
141:173 142:373 143:234 144:297 145:45 146:324
147:120 148:402 149:144 150:113 151:160 152:90
153:126 154:2 155:254 156:153 157:213 158:158
159:162 160:105 161:93 162:219 163:179 164:458
165:408 166:294 167:292 168:506 169:120 170:406
171:20 172:1 189:63 190:723 192:5741 193:3912
194:3154 195:2242 196:959 198:3810 199:3273 200:4912
201:1097 202:7370 203:7573 204:3950 205:2005 206:2404
207:2831 208:2714 209:3512 210:2443 211:928 212:1304
213:1480 214:408 215:41 216:4004 217:1154 218:361
219:385 220:989 221:409 222:264
End of report
