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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 13 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217765
Prefixes after maximum aggregation: 116325
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 104489
Total ASes present in the Internet Routing Table: 24890
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21686
Origin ASes announcing only one prefix: 10474
Transit ASes present in the Internet Routing Table: 3204
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (34204) 23
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: 1689289288
Equivalent to 100 /8s, 176 /16s and 130 /24s
Percentage of available address space announced: 45.6
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 73.7
Total number of prefixes smaller than registry allocations: 113590
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49968
Total APNIC prefixes after maximum aggregation: 20061
APNIC Deaggregation factor: 2.49
Prefixes being announced from the APNIC address blocks: 47016
Unique aggregates announced from the APNIC address blocks: 21049
APNIC Region origin ASes present in the Internet Routing Table: 2913
APNIC Prefixes per ASN: 16.14
APNIC Region origin ASes announcing only one prefix: 778
APNIC Region transit ASes present in the Internet Routing Table: 432
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 291226816
Equivalent to 17 /8s, 91 /16s and 196 /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: 105851
Total ARIN prefixes after maximum aggregation: 61824
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77873
Unique aggregates announced from the ARIN address blocks: 30213
ARIN Region origin ASes present in the Internet Routing Table: 11477
ARIN Prefixes per ASN: 6.79
ARIN Region origin ASes announcing only one prefix: 4393
ARIN Region transit ASes present in the Internet Routing Table: 1051
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 328392832
Equivalent to 19 /8s, 146 /16s and 224 /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: 44826
Total RIPE prefixes after maximum aggregation: 29355
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41399
Unique aggregates announced from the RIPE address blocks: 26356
RIPE Region origin ASes present in the Internet Routing Table: 9460
RIPE Prefixes per ASN: 4.38
RIPE Region origin ASes announcing only one prefix: 4994
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: 27
Number of RIPE addresses announced to Internet: 299352064
Equivalent to 17 /8s, 215 /16s and 192 /24s
Percentage of available RIPE address space announced: 74.3
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: 14566
Total LACNIC prefixes after maximum aggregation: 4082
LACNIC Deaggregation factor: 3.57
Prefixes being announced from the LACNIC address blocks: 12668
Unique aggregates announced from the LACNIC address blocks: 7158
LACNIC Region origin ASes present in the Internet Routing Table: 776
LACNIC Prefixes per ASN: 16.32
LACNIC Region origin ASes announcing only one prefix: 250
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: 38843392
Equivalent to 2 /8s, 80 /16s and 180 /24s
Percentage of available LACNIC address space announced: 57.9
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: 2549
Total AfriNIC prefixes after maximum aggregation: 997
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1909
Unique aggregates announced from the AfriNIC address blocks: 1176
AfriNIC Region origin ASes present in the Internet Routing Table: 187
AfriNIC Prefixes per ASN: 10.21
AfriNIC Region origin ASes announcing only one prefix: 59
AfriNIC Region transit ASes present in the Internet Routing Table: 37
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5971712
Equivalent to 0 /8s, 91 /16s and 31 /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 9486 269 CHINANET-BACKBONE
4755 1192 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1102 78 381 Sify Limited
9498 972 469 74 BHARTI BT INTERNET LTD.
4766 780 4943 312 Korea Telecom (KIX)
23577 779 35 708 Korea Telecom (ATM-MPLS)
17488 663 43 34 Hathway IP Over Cable Interne
7545 610 140 78 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 385 216 260 SingTel Optus Pty Ltd
2907 369 1749 311 SINET Japan
4802 359 86 150 Wantree Development
9829 359 274 14 BSNL National Internet Backbo
17557 358 36 173 Pakistan Telecom
4837 342 4596 157 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1496 6127 983 AT&T WorldNet Services
4323 1275 1022 355 Time Warner Telecom
6478 1090 334 148 AT&T Worldnet Services
2386 1084 542 730 AT&T Data Communications Serv
6197 1033 682 503 BellSouth Network Solutions,
11492 1026 102 14 Cable One
18566 999 288 9 Covad Communications
174 955 6792 868 Cogent Communications
701 932 6660 730 UUNET Technologies, Inc.
1239 828 2716 577 Sprint
20115 813 723 428 Charter Communications
7011 781 225 464 Citizens Utilities
209 720 3734 571 Qwest
19262 719 2550 171 Verizon Global Networks
22773 699 1871 40 Cox Communications, Inc.
721 619 21756 275 DLA Systems Automation Center
852 596 1095 377 Telus Advanced Communications
5668 585 160 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
702 519 1941 413 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
680 258 2044 250 DFN-IP service G-WiN
3215 239 2256 92 France Telecom Transpac
8708 234 287 227 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 195 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 184 171 90 AUCS Communications Services
786 177 1795 177 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1082 2009 208 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 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 27 Telefonica Del Peru
6503 212 171 84 AVANTEL, S.A.
10481 181 72 8 Prima S.A.
20299 181 25 24 NEWCOM AMERICAS
10620 168 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 290 867 231 The Internet Solution
8452 217 188 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 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 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
8524 30 2 6 AUCEGYPT Autonomous System
16637 30 21 28 Johnnic e-Ventures
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 1192 1115 Videsh Sanchar Nigam Ltd. Aut
11492 1026 1012 Cable One
4134 1274 1005 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1090 942 AT&T Worldnet Services
4323 1275 920 Time Warner Telecom
9498 972 898 BHARTI BT INTERNET LTD.
8151 1082 874 UniNet S.A. de C.V.
9583 1102 721 Sify Limited
22773 699 659 Cox Communications, Inc.
17488 663 629 Hathway IP Over Cable Interne
5668 585 568 CenturyTel Internet Holdings,
19262 719 548 Verizon Global Networks
7545 610 532 TPG Internet Pty Ltd
6197 1033 530 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.
7029 569 488 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 /8:19 /9:9 /10:12 /11:34 /12:122
/13:235 /14:447 /15:853 /16:9343 /17:3807 /18:6293
/19:13429 /20:15157 /21:13651 /22:17698 /23:19078 /24:115305
/25:776 /26:809 /27:482 /28:59 /29:39 /30:68
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1081 1090 AT&T Worldnet Services
11492 1012 1026 Cable One
18566 981 999 Covad Communications
9583 942 1102 Sify Limited
7018 814 1496 AT&T WorldNet Services
2386 807 1084 AT&T Data Communications Serv
6197 796 1033 BellSouth Network Solutions,
23577 765 779 Korea Telecom (ATM-MPLS)
7011 684 781 Citizens Utilities
9498 635 972 BHARTI BT INTERNET LTD.
4755 586 1192 Videsh Sanchar Nigam Ltd. Aut
4766 586 780 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 534 1275 Time Warner Telecom
4668 494 504 LG-EDS Systems Inc.
15270 489 522 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 453 585 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 7:1 8:65 9:1 12:1788 15:19
16:3 17:3 18:8 20:35 24:949 25:1
32:53 38:296 40:57 41:116 44:2 47:4
52:4 55:1 56:3 57:26 58:369 59:366
60:263 61:904 62:965 63:1965 64:3108 65:2319
66:3266 67:795 68:646 69:1779 70:491 71:111
72:1245 73:1 74:332 75:244 76:35 77:136
80:819 81:795 82:582 83:378 84:437 85:763
86:412 87:460 88:251 89:830 90:19 91:249
97:1 116:11 121:170 122:521 123:89 124:763
125:924 128:271 129:220 130:125 131:356 132:51
133:10 134:193 135:38 136:195 137:83 138:193
139:55 140:480 141:149 142:369 143:214 144:289
145:43 146:323 147:146 148:393 149:143 150:115
151:124 152:91 153:121 154:4 155:252 156:153
157:182 158:161 159:155 160:103 161:90 162:236
163:141 164:451 165:404 166:247 167:278 168:498
169:120 170:393 171:15 172:1 189:253 190:563
192:5739 193:3785 194:3076 195:2204 196:926 198:3753
199:3285 200:4659 201:1013 202:7238 203:7406 204:3955
205:2104 206:2414 207:2881 208:2617 209:3594 210:2389
211:931 212:1290 213:1471 214:407 215:39 216:4012
217:1146 218:354 219:304 220:907 221:390 222:268
End of report
Report Website: http://thyme.apnic.net
