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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 16 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217876
Prefixes after maximum aggregation: 116391
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 105905
Total ASes present in the Internet Routing Table: 24910
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21704
Origin ASes announcing only one prefix: 10485
Transit ASes present in the Internet Routing Table: 3206
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 30
Max AS path prepend of ASN (33993) 26
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: 1688132424
Equivalent to 100 /8s, 158 /16s and 219 /24s
Percentage of available address space announced: 45.5
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 113665
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 50064
Total APNIC prefixes after maximum aggregation: 20092
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 47083
Unique aggregates announced from the APNIC address blocks: 21111
APNIC Region origin ASes present in the Internet Routing Table: 2917
APNIC Prefixes per ASN: 16.14
APNIC Region origin ASes announcing only one prefix: 779
APNIC Region transit ASes present in the Internet Routing Table: 430
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 291328192
Equivalent to 17 /8s, 93 /16s and 80 /24s
Percentage of available APNIC address space announced: 72.2
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: 105862
Total ARIN prefixes after maximum aggregation: 61818
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77908
Unique aggregates announced from the ARIN address blocks: 30249
ARIN Region origin ASes present in the Internet Routing Table: 11487
ARIN Prefixes per ASN: 6.78
ARIN Region origin ASes announcing only one prefix: 4404
ARIN Region transit ASes present in the Internet Routing Table: 1050
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 328560000
Equivalent to 19 /8s, 149 /16s and 109 /24s
Percentage of available ARIN address space announced: 72.5
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: 44843
Total RIPE prefixes after maximum aggregation: 29385
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41410
Unique aggregates announced from the RIPE address blocks: 27729
RIPE Region origin ASes present in the Internet Routing Table: 9466
RIPE Prefixes per ASN: 4.37
RIPE Region origin ASes announcing only one prefix: 4995
RIPE Region transit ASes present in the Internet Routing Table: 1526
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 30
Number of RIPE addresses announced to Internet: 298703360
Equivalent to 17 /8s, 205 /16s and 218 /24s
Percentage of available RIPE address space announced: 74.2
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: 14575
Total LACNIC prefixes after maximum aggregation: 4100
LACNIC Deaggregation factor: 3.55
Prefixes being announced from the LACNIC address blocks: 12677
Unique aggregates announced from the LACNIC address blocks: 7107
LACNIC Region origin ASes present in the Internet Routing Table: 777
LACNIC Prefixes per ASN: 16.32
LACNIC Region origin ASes announcing only one prefix: 249
LACNIC Region transit ASes present in the Internet Routing Table: 135
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38284800
Equivalent to 2 /8s, 72 /16s and 46 /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: 2527
Total AfriNIC prefixes after maximum aggregation: 990
AfriNIC Deaggregation factor: 2.55
Prefixes being announced from the AfriNIC address blocks: 1896
Unique aggregates announced from the AfriNIC address blocks: 1170
AfriNIC Region origin ASes present in the Internet Routing Table: 185
AfriNIC Prefixes per ASN: 10.25
AfriNIC Region origin ASes announcing only one prefix: 58
AfriNIC Region transit ASes present in the Internet Routing Table: 36
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5973504
Equivalent to 0 /8s, 91 /16s and 38 /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 1274 9487 269 CHINANET-BACKBONE
4755 1195 383 76 Videsh Sanchar Nigam Ltd. Aut
9583 1104 78 375 Sify Limited
9498 973 469 73 BHARTI BT INTERNET LTD.
4766 783 4943 312 Korea Telecom (KIX)
23577 780 35 709 Korea Telecom (ATM-MPLS)
17488 663 43 34 Hathway IP Over Cable Interne
7545 612 142 79 TPG Internet Pty Ltd
1221 572 1956 446 Telstra Pty Ltd
18101 530 116 26 Reliance Infocom Ltd Internet
4668 504 68 10 LG-EDS Systems Inc.
17676 503 10935 65 Softbank BB Corp.
4812 458 795 74 China Telecom (Shanghai)
9443 458 115 74 Primus Telecommunications
7474 390 216 262 SingTel Optus Pty Ltd
2907 369 1749 311 SINET Japan
9829 359 274 14 BSNL National Internet Backbo
4802 358 86 148 Wantree Development
17557 358 35 173 Pakistan Telecom
17974 345 129 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1497 6127 982 AT&T WorldNet Services
4323 1269 1022 355 Time Warner Telecom
6478 1093 334 146 AT&T Worldnet Services
2386 1086 526 731 AT&T Data Communications Serv
6197 1033 686 505 BellSouth Network Solutions,
11492 1030 102 15 Cable One
18566 999 288 9 Covad Communications
174 949 6791 864 Cogent Communications
701 931 6676 734 UUNET Technologies, Inc.
1239 824 2716 574 Sprint
20115 808 725 424 Charter Communications
7011 782 225 465 Citizens Utilities
209 718 3734 569 Qwest
19262 710 2534 169 Verizon Global Networks
22773 699 1871 40 Cox Communications, Inc.
721 617 21756 274 DLA Systems Automation Center
852 596 1095 377 Telus Advanced Communications
5668 584 160 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 341 47 33 LINKdotNET AS number
3301 306 1454 286 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 275 95 252 Dynamic Network Technologies,
8220 260 463 251 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
3215 239 2256 92 France Telecom Transpac
8708 235 288 228 Romania Data Systems S.A.
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 196 1795 36 Ibernet, Internet Access Netw
1257 191 1180 169 SWIPnet Swedish IP Network
9116 188 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
786 178 1795 178 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1036 1868 210 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 266 143 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 225 176 23 Telefonica Del Peru
6503 213 171 85 AVANTEL, S.A.
20299 188 25 30 NEWCOM AMERICAS
10481 181 72 8 Prima S.A.
10620 169 49 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 209 188 7 TEDATA
6713 143 135 11 Itissalat Al-MAGHRIB
2018 138 309 113 Tertiary Education Network
15475 129 84 4 Nile Online
5536 123 8 15 Internet Egypt Network
33783 115 7 8 EEPAD TISP TELECOM & INTERNET
24835 85 48 6 RAYA Telecom - Egypt
2905 79 173 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 42 13 23 AS Number for Telecom Algeria
16637 33 21 25 Johnnic e-Ventures
8524 30 2 6 AUCEGYPT Autonomous System
33766 29 2 1 Nyala Communications Pty Ltd
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 1195 1119 Videsh Sanchar Nigam Ltd. Aut
11492 1030 1015 Cable One
4134 1274 1005 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1093 947 AT&T Worldnet Services
4323 1269 914 Time Warner Telecom
9498 973 900 BHARTI BT INTERNET LTD.
8151 1036 826 UniNet S.A. de C.V.
9583 1104 729 Sify Limited
22773 699 659 Cox Communications, Inc.
17488 663 629 Hathway IP Over Cable Interne
5668 584 567 CenturyTel Internet Holdings,
19262 710 541 Verizon Global Networks
7545 612 533 TPG Internet Pty Ltd
6197 1033 528 BellSouth Network Solutions,
19916 568 514 OLM LLC
18101 530 504 Reliance Infocom Ltd Internet
855 566 495 Canadian Research Network
4668 504 494 LG-EDS Systems Inc.
15270 524 489 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
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 /8:18 /9:9 /10:12 /11:34 /12:122
/13:235 /14:447 /15:854 /16:9339 /17:3811 /18:6295
/19:13414 /20:15174 /21:13663 /22:17707 /23:19090 /24:115377
/25:771 /26:813 /27:485 /28:59 /29:38 /30:69
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1084 1093 AT&T Worldnet Services
11492 1016 1030 Cable One
18566 981 999 Covad Communications
9583 944 1104 Sify Limited
7018 815 1497 AT&T WorldNet Services
2386 809 1086 AT&T Data Communications Serv
6197 795 1033 BellSouth Network Solutions,
23577 766 780 Korea Telecom (ATM-MPLS)
7011 685 782 Citizens Utilities
9498 635 973 BHARTI BT INTERNET LTD.
4766 589 783 Korea Telecom (KIX)
4755 587 1195 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 533 1269 Time Warner Telecom
4668 494 504 LG-EDS Systems Inc.
15270 491 524 PaeTec.net -a division of Pae
17488 484 663 Hathway IP Over Cable Interne
855 464 566 Canadian Research Network
18101 456 530 Reliance Infocom Ltd Internet
5668 452 584 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:65 9:1 12:1792 15:19
16:3 17:3 18:8 20:35 24:948 25:1
32:53 38:297 40:57 41:117 44:2 47:4
52:4 55:1 56:3 57:26 58:370 59:367
60:264 61:906 62:970 63:1963 64:3113 65:2312
66:3251 67:795 68:644 69:1792 70:491 71:110
72:1255 73:1 74:366 75:248 76:35 77:141
80:837 81:792 82:612 83:377 84:438 85:744
86:373 87:461 88:240 89:839 90:19 91:261
97:1 116:12 121:172 122:522 123:92 124:767
125:935 128:272 129:221 130:125 131:347 132:51
133:10 134:189 135:39 136:195 137:83 138:194
139:57 140:480 141:149 142:369 143:213 144:288
145:43 146:323 147:144 148:395 149:141 150:115
151:124 152:93 153:121 154:4 155:252 156:153
157:182 158:161 159:156 160:103 161:90 162:236
163:141 164:450 165:403 166:246 167:278 168:496
169:120 170:393 171:15 172:1 189:253 190:567
192:5743 193:3786 194:3091 195:2204 196:915 198:3753
199:3283 200:4673 201:1015 202:7237 203:7418 204:3955
205:2109 206:2409 207:2881 208:2602 209:3611 210:2392
211:934 212:1281 213:1444 214:408 215:39 216:4004
217:1146 218:354 219:300 220:910 221:393 222:269
End of report
Report Website: http://thyme.apnic.net
