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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 23 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 218392
Prefixes after maximum aggregation: 116600
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 106026
Total ASes present in the Internet Routing Table: 24974
Prefixes per ASN: 8.74
Origin-only ASes present in the Internet Routing Table: 21745
Origin ASes announcing only one prefix: 10503
Transit ASes present in the Internet Routing Table: 3229
Transit-only ASes present in the Internet Routing Table: 83
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: 11
Unregistered ASNs in the Routing Table: 12
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1710968128
Equivalent to 101 /8s, 251 /16s and 77 /24s
Percentage of available address space announced: 46.2
Percentage of allocated address space announced: 62.7
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 114078
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50255
Total APNIC prefixes after maximum aggregation: 20183
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 47301
Unique aggregates announced from the APNIC address blocks: 21115
APNIC Region origin ASes present in the Internet Routing Table: 2919
APNIC Prefixes per ASN: 16.20
APNIC Region origin ASes announcing only one prefix: 783
APNIC Region transit ASes present in the Internet Routing Table: 437
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 291858112
Equivalent to 17 /8s, 101 /16s and 102 /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: 105940
Total ARIN prefixes after maximum aggregation: 61836
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 78025
Unique aggregates announced from the ARIN address blocks: 30291
ARIN Region origin ASes present in the Internet Routing Table: 11501
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4398
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: 329064576
Equivalent to 19 /8s, 157 /16s and 32 /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: 45062
Total RIPE prefixes after maximum aggregation: 29473
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41622
Unique aggregates announced from the RIPE address blocks: 27824
RIPE Region origin ASes present in the Internet Routing Table: 9504
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 5014
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: 303360512
Equivalent to 18 /8s, 20 /16s and 234 /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: 14572
Total LACNIC prefixes after maximum aggregation: 4099
LACNIC Deaggregation factor: 3.56
Prefixes being announced from the LACNIC address blocks: 12687
Unique aggregates announced from the LACNIC address blocks: 7066
LACNIC Region origin ASes present in the Internet Routing Table: 778
LACNIC Prefixes per ASN: 16.31
LACNIC Region origin ASes announcing only one prefix: 250
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: 38383104
Equivalent to 2 /8s, 73 /16s and 174 /24s
Percentage of available LACNIC address space announced: 57.2
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: 2551
Total AfriNIC prefixes after maximum aggregation: 1003
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 1925
Unique aggregates announced from the AfriNIC address blocks: 1165
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: 6044672
Equivalent to 0 /8s, 92 /16s and 60 /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 1197 383 72 Videsh Sanchar Nigam Ltd. Aut
9583 1096 79 376 Sify Limited
9498 978 469 74 BHARTI BT INTERNET LTD.
4766 782 4943 312 Korea Telecom (KIX)
23577 778 35 707 Korea Telecom (ATM-MPLS)
17488 666 43 36 Hathway IP Over Cable Interne
7545 624 142 80 TPG Internet Pty Ltd
1221 579 1956 448 Telstra Pty Ltd
18101 529 116 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 458 115 74 Primus Telecommunications
7474 401 217 268 SingTel Optus Pty Ltd
9829 359 274 14 BSNL National Internet Backbo
17557 358 35 172 Pakistan Telecom
4802 357 86 147 Wantree Development
4837 343 4708 157 chinanet IDC center beijing n
17974 343 129 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6127 985 AT&T WorldNet Services
4323 1269 1022 359 Time Warner Telecom
2386 1102 530 742 AT&T Data Communications Serv
6478 1096 335 151 AT&T Worldnet Services
11492 1038 102 17 Cable One
6197 1035 687 502 BellSouth Network Solutions,
18566 999 288 9 Covad Communications
174 950 6792 866 Cogent Communications
701 948 6697 741 UUNET Technologies, Inc.
20115 822 734 426 Charter Communications
1239 816 2715 574 Sprint
7011 784 225 466 Citizens Utilities
209 717 3734 570 Qwest
19262 710 2554 173 Verizon Global Networks
22773 704 1871 40 Cox Communications, Inc.
721 616 21756 273 DLA Systems Automation Center
852 593 1097 376 Telus Advanced Communications
5668 593 160 17 CenturyTel Internet Holdings,
7029 575 456 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 1957 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 214 2583 72 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
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 184 171 89 AUCS Communications Services
786 177 1779 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1040 1867 206 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 364 116 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 264 143 22 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 210 171 82 AVANTEL, S.A.
20299 198 26 20 NEWCOM AMERICAS
10620 184 53 23 TVCABLE BOGOTA
10481 181 72 8 Prima S.A.
23216 158 19 42 RAMtelecom Telecomunicaciones
21826 156 28 59 INTERCABLE
7910 152 11 32 ANDINET ON LINE
14522 146 22 5 SatNet S.A.
18822 146 9 6 TELEFONICA MANQUEHUE
19429 145 91 38 E.T.B.
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 291 868 232 The Internet Solution
8452 211 188 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
21280 29 4 4 Swift Global Kenya Ltd.Is an
33766 28 2 1 Nyala Communications Pty Ltd
12455 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1197 1125 Videsh Sanchar Nigam Ltd. Aut
11492 1038 1021 Cable One
4134 1274 1005 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1096 945 AT&T Worldnet Services
4323 1269 910 Time Warner Telecom
9498 978 904 BHARTI BT INTERNET LTD.
8151 1040 834 UniNet S.A. de C.V.
9583 1096 720 Sify Limited
22773 704 664 Cox Communications, Inc.
17488 666 630 Hathway IP Over Cable Interne
5668 593 576 CenturyTel Internet Holdings,
7545 624 544 TPG Internet Pty Ltd
19262 710 537 Verizon Global Networks
6197 1035 533 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 529 503 Reliance Infocom Ltd Internet
855 566 495 Canadian Research Network
4668 505 495 LG-EDS Systems Inc.
7029 575 494 Alltel Information Services,
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
64786 PRIVATE 170.210.17.0/25 7303 Telecom Argentina St
64785 PRIVATE 170.210.21.128/25 7303 Telecom Argentina St
64807 PRIVATE 170.210.44.0/25 7303 Telecom Argentina St
64795 PRIVATE 170.210.46.128/25 7303 Telecom Argentina St
64810 PRIVATE 170.210.78.128/25 7303 Telecom Argentina St
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
24409 UNALLOCATED 203.119.29.0/24 9808 Guangdong Mobile Com
64512 PRIVATE 208.103.63.0/24 32703 Indiana Fiber Networ
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 /16:9350 /17:3813 /18:6313
/19:13459 /20:15194 /21:13694 /22:17766 /23:19125 /24:115799
/25:767 /26:813 /27:487 /28:61 /29:6 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1087 1096 AT&T Worldnet Services
11492 1024 1038 Cable One
18566 981 999 Covad Communications
9583 935 1096 Sify Limited
2386 821 1102 AT&T Data Communications Serv
7018 814 1499 AT&T WorldNet Services
6197 796 1035 BellSouth Network Solutions,
23577 764 778 Korea Telecom (ATM-MPLS)
7011 687 784 Citizens Utilities
9498 640 978 BHARTI BT INTERNET LTD.
4755 591 1197 Videsh Sanchar Nigam Ltd. Aut
4766 588 782 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 530 1269 Time Warner Telecom
4668 495 505 LG-EDS Systems Inc.
15270 494 527 PaeTec.net -a division of Pae
17488 487 666 Hathway IP Over Cable Interne
855 464 566 Canadian Research Network
5668 459 593 CenturyTel Internet Holdings,
18101 456 529 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:70 9:1 12:1795 15:19
16:3 17:3 18:8 20:37 24:950 25:1
32:53 38:299 40:57 41:123 44:2 47:4
52:4 55:1 56:3 57:26 58:369 59:370
60:268 61:921 62:969 63:1970 64:3114 65:2330
66:3249 67:802 68:647 69:1809 70:501 71:111
72:1260 73:1 74:382 75:256 76:36 77:156
80:854 81:803 82:613 83:379 84:435 85:746
86:444 87:465 88:254 89:836 90:21 91:268
97:1 116:24 121:174 122:525 123:86 124:783
125:938 128:273 129:218 130:121 131:348 132:52
133:10 134:190 135:39 136:179 137:84 138:194
139:63 140:480 141:149 142:369 143:210 144:289
145:43 146:323 147:147 148:397 149:143 150:115
151:124 152:93 153:121 154:4 155:252 156:152
157:182 158:160 159:150 160:104 161:88 162:236
163:146 164:453 165:397 166:234 167:278 168:497
169:120 170:398 171:15 172:1 189:263 190:571
192:5747 193:3786 194:3071 195:2209 196:927 198:3755
199:3282 200:4696 201:954 202:7205 203:7438 204:3920
205:2105 206:2398 207:2913 208:2614 209:3618 210:2458
211:930 212:1296 213:1447 214:400 215:40 216:4008
217:1153 218:353 219:356 220:939 221:395 222:272
End of report
Report Website: http://thyme.apnic.net
