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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 20 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 218319
Prefixes after maximum aggregation: 116571
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 106098
Total ASes present in the Internet Routing Table: 24969
Prefixes per ASN: 8.74
Origin-only ASes present in the Internet Routing Table: 21740
Origin ASes announcing only one prefix: 10509
Transit ASes present in the Internet Routing Table: 3229
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (20858) 18
Prefixes from unregistered ASNs in the Routing Table: 7
Unregistered ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1710443840
Equivalent to 101 /8s, 243 /16s and 77 /24s
Percentage of available address space announced: 46.1
Percentage of allocated address space announced: 62.7
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 114044
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50196
Total APNIC prefixes after maximum aggregation: 20177
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 47241
Unique aggregates announced from the APNIC address blocks: 21134
APNIC Region origin ASes present in the Internet Routing Table: 2922
APNIC Prefixes per ASN: 16.17
APNIC Region origin ASes announcing only one prefix: 789
APNIC Region transit ASes present in the Internet Routing Table: 441
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 291846592
Equivalent to 17 /8s, 101 /16s and 57 /24s
Percentage of available APNIC address space announced: 72.3
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: 105850
Total ARIN prefixes after maximum aggregation: 61826
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77938
Unique aggregates announced from the ARIN address blocks: 30297
ARIN Region origin ASes present in the Internet Routing Table: 11499
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4401
ARIN Region transit ASes present in the Internet Routing Table: 1048
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 328960640
Equivalent to 19 /8s, 155 /16s and 138 /24s
Percentage of available ARIN address space announced: 72.6
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: 45077
Total RIPE prefixes after maximum aggregation: 29467
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41641
Unique aggregates announced from the RIPE address blocks: 27803
RIPE Region origin ASes present in the Internet Routing Table: 9503
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5012
RIPE Region transit ASes present in the Internet Routing Table: 1538
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 303210496
Equivalent to 18 /8s, 18 /16s and 160 /24s
Percentage of available RIPE address space announced: 75.3
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
40960-43007
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: 14622
Total LACNIC prefixes after maximum aggregation: 4090
LACNIC Deaggregation factor: 3.58
Prefixes being announced from the LACNIC address blocks: 12716
Unique aggregates announced from the LACNIC address blocks: 7120
LACNIC Region origin ASes present in the Internet Routing Table: 777
LACNIC Prefixes per ASN: 16.37
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 137
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38284544
Equivalent to 2 /8s, 72 /16s and 45 /24s
Percentage of available LACNIC address space announced: 57.0
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: 2564
Total AfriNIC prefixes after maximum aggregation: 1003
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1926
Unique aggregates announced from the AfriNIC address blocks: 1182
AfriNIC Region origin ASes present in the Internet Routing Table: 188
AfriNIC Prefixes per ASN: 10.24
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 6045184
Equivalent to 0 /8s, 92 /16s and 62 /24s
Percentage of available AfriNIC address space announced: 18.0
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 1274 9487 269 CHINANET-BACKBONE
4755 1200 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1097 79 376 Sify Limited
9498 977 469 74 BHARTI BT INTERNET LTD.
4766 782 4943 312 Korea Telecom (KIX)
23577 780 35 708 Korea Telecom (ATM-MPLS)
17488 664 43 35 Hathway IP Over Cable Interne
7545 613 142 78 TPG Internet Pty Ltd
1221 580 1957 449 Telstra Pty Ltd
18101 528 116 26 Reliance Infocom Ltd Internet
4668 505 68 10 LG-EDS Systems Inc.
17676 503 10935 65 Softbank BB Corp.
4812 461 795 73 China Telecom (Shanghai)
9443 459 115 74 Primus Telecommunications
7474 399 217 268 SingTel Optus Pty Ltd
9829 359 274 14 BSNL National Internet Backbo
17557 359 35 174 Pakistan Telecom
4802 357 86 147 Wantree Development
17974 345 129 12 PT TELEKOMUNIKASI INDONESIA
4837 343 4708 157 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6126 985 AT&T WorldNet Services
4323 1268 1022 359 Time Warner Telecom
2386 1100 530 743 AT&T Data Communications Serv
6478 1095 335 150 AT&T Worldnet Services
11492 1036 102 16 Cable One
6197 1034 686 501 BellSouth Network Solutions,
18566 999 288 9 Covad Communications
174 951 6792 867 Cogent Communications
701 942 6677 738 UUNET Technologies, Inc.
1239 824 2716 574 Sprint
20115 821 734 430 Charter Communications
7011 783 225 465 Citizens Utilities
209 717 3734 570 Qwest
19262 709 2554 172 Verizon Global Networks
22773 704 1871 40 Cox Communications, Inc.
721 615 21756 273 DLA Systems Automation Center
852 594 1095 376 Telus Advanced Communications
5668 593 160 17 CenturyTel Internet Holdings,
7029 569 456 81 Alltel Information Services,
19916 568 49 54 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 520 1941 414 UUNET - Commercial IP service
24863 342 47 32 LINKdotNET AS number
3301 307 1455 287 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 273 95 250 Dynamic Network Technologies,
680 258 2044 250 DFN-IP service G-WiN
8220 258 461 249 COLT Telecommunications
3215 239 2256 92 France Telecom Transpac
8708 236 288 229 Romania Data Systems S.A.
3269 215 2583 73 TELECOM ITALIA
3246 208 340 197 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 95 SC Kappa Invexim SRL
3352 200 1799 33 Ibernet, Internet Access Netw
20858 196 34 4 EgyNet
1257 192 1180 170 SWIPnet Swedish IP Network
15471 192 24 59 SNR - Societatea Nationala de
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1049 1869 209 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 363 116 64 Servicios Alestra S.A de C.V
16814 362 22 8 NSS, S.A.
22047 310 238 12 VTR PUNTO NET S.A.
7303 267 143 24 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 235 128 3 Cable-Wireless Panama
6147 226 176 23 Telefonica Del Peru
6503 213 171 85 AVANTEL, S.A.
10620 184 53 23 TVCABLE BOGOTA
20299 183 25 24 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
23216 158 19 42 RAMtelecom Telecomunicaciones
21826 156 28 59 INTERCABLE
7910 153 11 30 ANDINET ON LINE
19429 148 92 39 E.T.B.
14522 146 22 5 SatNet S.A.
18822 146 9 6 TELEFONICA MANQUEHUE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 216 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 137 309 112 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 116 7 9 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 80 173 72 The Internetworking Company o
2561 61 6 2 Egyptian Universities Network
15706 51 12 4 Sudatel Internet Exchange Aut
23889 49 16 13 MAURITIUS TELECOM
5713 44 294 34 Telkom SA Ltd
33774 43 13 24 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
8524 30 2 6 AUCEGYPT Autonomous System
33776 30 2 7 Starcomms Nigeria Limited
33766 29 2 1 Nyala Communications Pty Ltd
21280 28 4 4 Swift Global Kenya Ltd.Is an
12455 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1200 1124 Videsh Sanchar Nigam Ltd. Aut
11492 1036 1020 Cable One
4134 1274 1005 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1095 945 AT&T Worldnet Services
4323 1268 909 Time Warner Telecom
9498 977 903 BHARTI BT INTERNET LTD.
8151 1049 840 UniNet S.A. de C.V.
9583 1097 721 Sify Limited
22773 704 664 Cox Communications, Inc.
17488 664 629 Hathway IP Over Cable Interne
5668 593 576 CenturyTel Internet Holdings,
19262 709 537 Verizon Global Networks
7545 613 535 TPG Internet Pty Ltd
6197 1034 533 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 528 502 Reliance Infocom Ltd Internet
855 566 495 Canadian Research Network
4668 505 495 LG-EDS Systems Inc.
15270 527 492 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
64518 PRIVATE 125.18.63.0/24 7633 Software Technology
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
64512 PRIVATE 208.103.63.0/24 32703 Indiana Fiber Networ
65010 PRIVATE 209.128.74.0/24 7151 Bay Area Internet So
65010 PRIVATE 209.128.124.0/24 7151 Bay Area Internet So
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 /8:19 /9:9 /10:13 /11:34 /12:122
/13:236 /14:447 /15:856 /16:9344 /17:3812 /18:6308
/19:13445 /20:15178 /21:13665 /22:17764 /23:19129 /24:115799
/25:766 /26:813 /27:485 /28:60 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1086 1095 AT&T Worldnet Services
11492 1022 1036 Cable One
18566 981 999 Covad Communications
9583 936 1097 Sify Limited
2386 820 1100 AT&T Data Communications Serv
7018 815 1499 AT&T WorldNet Services
6197 796 1034 BellSouth Network Solutions,
23577 766 780 Korea Telecom (ATM-MPLS)
7011 686 783 Citizens Utilities
9498 640 977 BHARTI BT INTERNET LTD.
4755 591 1200 Videsh Sanchar Nigam Ltd. Aut
4766 588 782 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 529 1268 Time Warner Telecom
4668 495 505 LG-EDS Systems Inc.
15270 494 527 PaeTec.net -a division of Pae
17488 485 664 Hathway IP Over Cable Interne
855 464 566 Canadian Research Network
5668 459 593 CenturyTel Internet Holdings,
18101 455 528 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:70 9:1 12:1793 15:19
16:3 17:3 18:8 20:37 24:949 25:1
32:53 38:297 40:57 41:123 44:2 47:4
52:4 55:1 56:3 57:26 58:368 59:368
60:266 61:907 62:972 63:1965 64:3113 65:2315
66:3259 67:799 68:646 69:1792 70:494 71:111
72:1258 73:1 74:368 75:253 76:36 77:151
80:853 81:806 82:613 83:377 84:435 85:743
86:446 87:462 88:273 89:844 90:21 91:263
97:1 116:14 121:174 122:525 123:78 124:779
125:940 128:272 129:221 130:121 131:348 132:52
133:10 134:193 135:39 136:178 137:83 138:194
139:62 140:479 141:149 142:369 143:210 144:289
145:43 146:323 147:146 148:398 149:142 150:115
151:124 152:94 153:121 154:4 155:250 156:152
157:183 158:161 159:155 160:104 161:88 162:236
163:146 164:453 165:403 166:249 167:278 168:498
169:120 170:396 171:15 172:1 189:263 190:569
192:5744 193:3788 194:3070 195:2211 196:934 198:3758
199:3280 200:4687 201:1018 202:7220 203:7419 204:3948
205:2110 206:2395 207:2904 208:2611 209:3617 210:2455
211:931 212:1292 213:1447 214:396 215:40 216:4007
217:1153 218:353 219:356 220:936 221:397 222:270
End of report
Report Website: http://thyme.apnic.net
