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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 11 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217549
Prefixes after maximum aggregation: 116255
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 104506
Total ASes present in the Internet Routing Table: 24860
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21659
Origin ASes announcing only one prefix: 10458
Transit ASes present in the Internet Routing Table: 3201
Transit-only ASes present in the Internet Routing Table: 74
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: 3
Unregistered ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1705035080
Equivalent to 101 /8s, 160 /16s and 197 /24s
Percentage of available address space announced: 46.0
Percentage of allocated address space announced: 62.5
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 113454
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49842
Total APNIC prefixes after maximum aggregation: 20033
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 46890
Unique aggregates announced from the APNIC address blocks: 21032
APNIC Region origin ASes present in the Internet Routing Table: 2912
APNIC Region origin ASes announcing only one prefix: 780
APNIC Region transit ASes present in the Internet Routing Table: 429
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 291002560
Equivalent to 17 /8s, 88 /16s and 88 /24s
Percentage of available APNIC address space announced: 72.1
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: 105813
Total ARIN prefixes after maximum aggregation: 61793
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77884
Unique aggregates announced from the ARIN address blocks: 30243
ARIN Region origin ASes present in the Internet Routing Table: 11465
ARIN Region origin ASes announcing only one prefix: 4383
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: 327904128
Equivalent to 19 /8s, 139 /16s and 107 /24s
Percentage of available ARIN address space announced: 72.4
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: 44800
Total RIPE prefixes after maximum aggregation: 29349
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41388
Unique aggregates announced from the RIPE address blocks: 26383
RIPE Region origin ASes present in the Internet Routing Table: 9446
RIPE Region origin ASes announcing only one prefix: 4983
RIPE Region transit ASes present in the Internet Routing Table: 1523
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 299396096
Equivalent to 17 /8s, 216 /16s and 108 /24s
Percentage of available RIPE address space announced: 74.4
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: 14538
Total LACNIC prefixes after maximum aggregation: 4083
LACNIC Deaggregation factor: 3.56
Prefixes being announced from the LACNIC address blocks: 12634
Unique aggregates announced from the LACNIC address blocks: 7133
LACNIC Region origin ASes present in the Internet Routing Table: 776
LACNIC Region origin ASes announcing only one prefix: 253
LACNIC Region transit ASes present in the Internet Routing Table: 134
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38808832
Equivalent to 2 /8s, 80 /16s and 45 /24s
Percentage of available LACNIC address space announced: 57.8
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: 2552
Total AfriNIC prefixes after maximum aggregation: 993
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1903
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 186
AfriNIC Region origin ASes announcing only one prefix: 59
AfriNIC Region transit ASes present in the Internet Routing Table: 38
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5977344
Equivalent to 0 /8s, 91 /16s and 53 /24s
Percentage of available AfriNIC address space announced: 17.8
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 1290 9468 266 CHINANET-BACKBONE
4755 1187 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1107 78 381 Sify Limited
9498 970 469 71 BHARTI BT INTERNET LTD.
4766 788 4943 314 Korea Telecom (KIX)
23577 782 35 708 Korea Telecom (ATM-MPLS)
17488 659 43 33 Hathway IP Over Cable Interne
7545 610 142 77 TPG Internet Pty Ltd
1221 569 1956 443 Telstra Pty Ltd
18101 536 116 27 Reliance Infocom Ltd Internet
4668 503 68 10 LG-EDS Systems Inc.
17676 503 10935 65 Softbank BB Corp.
4812 456 791 72 China Telecom (Shanghai)
9443 452 111 73 Primus Telecommunications
7474 385 216 260 SingTel Optus Pty Ltd
4802 359 86 150 Wantree Development
9829 359 274 14 BSNL National Internet Backbo
17557 358 34 173 Pakistan Telecom
4837 342 4596 157 chinanet IDC center beijing n
17974 342 129 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1501 6127 983 AT&T WorldNet Services
4323 1275 1030 356 Time Warner Telecom
6478 1089 334 154 AT&T Worldnet Services
2386 1088 542 731 AT&T Data Communications Serv
6197 1034 682 501 BellSouth Network Solutions,
11492 1023 102 13 Cable One
18566 999 288 9 Covad Communications
174 939 6791 859 Cogent Communications
701 936 6660 734 UUNET Technologies, Inc.
1239 823 2715 573 Sprint
20115 813 723 428 Charter Communications
7011 780 225 463 Citizens Utilities
19262 720 2550 171 Verizon Global Networks
209 719 3732 570 Qwest
22773 696 1871 40 Cox Communications, Inc.
721 618 21756 274 DLA Systems Automation Center
852 591 1096 378 Telus Advanced Communications
5668 581 160 17 CenturyTel Internet Holdings,
19916 568 49 54 OLM LLC
7029 567 456 80 Alltel Information Services,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 518 1941 412 UUNET - Commercial IP service
24863 340 47 32 LINKdotNET AS number
3301 308 1455 288 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 275 95 252 Dynamic Network Technologies,
8220 265 463 255 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 239 2256 92 France Telecom Transpac
8708 233 287 226 Romania Data Systems S.A.
1257 222 1180 168 SWIPnet Swedish IP Network
3269 216 2583 73 TELECOM ITALIA
3246 207 338 196 Song Networks
8551 206 196 30 Bezeq International
30890 205 17 93 SC Kappa Invexim SRL
20858 199 34 4 EgyNet
3352 194 1795 36 Ibernet, Internet Access Netw
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
786 176 1795 176 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1076 2009 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
16814 362 22 8 NSS, S.A.
11172 361 116 66 Servicios Alestra S.A de C.V
22047 310 238 12 VTR PUNTO NET S.A.
7303 265 143 24 Telecom Argentina Stet-France
6471 259 74 31 ENTEL CHILE S.A.
14117 242 17 14 Telefonica del Sur S.A.
11556 237 128 4 Cable-Wireless Panama
6147 226 178 24 Telefonica Del Peru
6503 213 171 84 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 181 25 24 NEWCOM AMERICAS
10620 164 48 22 TVCABLE BOGOTA
23216 157 19 42 RAMtelecom Telecomunicaciones
21826 156 28 59 INTERCABLE
7910 153 11 30 ANDINET ON LINE
19429 148 91 38 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 220 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 128 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 116 7 8 EEPAD TISP TELECOM & INTERNET
2905 85 176 74 The Internetworking Company o
24835 85 48 6 RAYA Telecom - Egypt
2561 61 6 2 Egyptian Universities Network
15706 55 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
33766 33 2 1 Nyala Communications Pty Ltd
8524 30 2 6 AUCEGYPT Autonomous System
21280 27 4 4 Swift Global Kenya Ltd.Is an
33776 27 2 5 Starcomms Nigeria Limited
12455 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1187 1110 Videsh Sanchar Nigam Ltd. Aut
4134 1290 1024 CHINANET-BACKBONE
11492 1023 1010 Cable One
18566 999 990 Covad Communications
6478 1089 935 AT&T Worldnet Services
4323 1275 919 Time Warner Telecom
9498 970 899 BHARTI BT INTERNET LTD.
8151 1076 865 UniNet S.A. de C.V.
9583 1107 726 Sify Limited
22773 696 656 Cox Communications, Inc.
17488 659 626 Hathway IP Over Cable Interne
5668 581 564 CenturyTel Internet Holdings,
19262 720 549 Verizon Global Networks
6197 1034 533 BellSouth Network Solutions,
7545 610 533 TPG Internet Pty Ltd
19916 568 514 OLM LLC
18101 536 509 Reliance Infocom Ltd Internet
855 565 494 Canadian Research Network
4668 503 493 LG-EDS Systems Inc.
7029 567 487 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
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
180.190.0.0/16 24003 JUBILANT ORGANOSYS LTD., INDI
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 /8:20 /9:9 /10:12 /11:34 /12:122
/13:235 /14:445 /15:850 /16:9334 /17:3805 /18:6281
/19:13423 /20:15127 /21:13609 /22:17700 /23:19047 /24:115211
/25:777 /26:814 /27:484 /28:61 /29:40 /30:69
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1080 1089 AT&T Worldnet Services
11492 1009 1023 Cable One
18566 981 999 Covad Communications
9583 947 1107 Sify Limited
7018 817 1501 AT&T WorldNet Services
2386 810 1088 AT&T Data Communications Serv
6197 797 1034 BellSouth Network Solutions,
23577 768 782 Korea Telecom (ATM-MPLS)
7011 683 780 Citizens Utilities
9498 632 970 BHARTI BT INTERNET LTD.
4766 593 788 Korea Telecom (KIX)
4755 581 1187 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 533 1275 Time Warner Telecom
4668 493 503 LG-EDS Systems Inc.
15270 488 520 PaeTec.net -a division of Pae
17488 480 659 Hathway IP Over Cable Interne
855 463 565 Canadian Research Network
18101 462 536 Reliance Infocom Ltd Internet
5668 449 581 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:65 9:1 12:1791 15:19
16:3 17:3 18:8 20:36 24:945 25:1
32:53 38:295 40:57 41:113 44:2 47:4
52:4 55:1 56:3 57:25 58:336 59:362
60:259 61:905 62:966 63:1962 64:3114 65:2317
66:3306 67:799 68:645 69:1784 70:491 71:111
72:1247 73:1 74:329 75:243 76:52 77:134
80:826 81:795 82:608 83:379 84:435 85:760
86:380 87:462 88:251 89:839 90:19 91:262
97:1 116:11 121:165 122:521 123:73 124:761
125:921 128:273 129:220 130:125 131:351 132:51
133:10 134:192 135:38 136:175 137:85 138:193
139:55 140:481 141:149 142:370 143:214 144:290
145:43 146:323 147:146 148:381 149:143 150:115
151:124 152:93 153:121 154:4 155:252 156:152
157:182 158:161 159:154 160:103 161:90 162:235
163:142 164:451 165:404 166:247 167:284 168:499
169:120 170:394 171:15 172:1 189:244 190:551
192:5732 193:3778 194:3078 195:2204 196:928 198:3749
199:3281 200:4657 201:1010 202:7240 203:7404 204:3952
205:2104 206:2419 207:2882 208:2614 209:3592 210:2363
211:932 212:1300 213:1444 214:406 215:39 216:4001
217:1167 218:354 219:305 220:897 221:393 222:269
End of report
Report Website: http://thyme.apnic.net
