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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 10 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217490
Prefixes after maximum aggregation: 116257
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 104523
Total ASes present in the Internet Routing Table: 24846
Prefixes per ASN: 8.75
Origin-only ASes present in the Internet Routing Table: 21646
Origin ASes announcing only one prefix: 10447
Transit ASes present in the Internet Routing Table: 3200
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: 1704968264
Equivalent to 101 /8s, 159 /16s and 192 /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: 113350
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49808
Total APNIC prefixes after maximum aggregation: 20048
APNIC Deaggregation factor: 2.48
Prefixes being announced from the APNIC address blocks: 46859
Unique aggregates announced from the APNIC address blocks: 21042
APNIC Region origin ASes present in the Internet Routing Table: 2912
APNIC Region origin ASes announcing only one prefix: 781
APNIC Region transit ASes present in the Internet Routing Table: 431
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 290895552
Equivalent to 17 /8s, 86 /16s and 182 /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: 105820
Total ARIN prefixes after maximum aggregation: 61793
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77822
Unique aggregates announced from the ARIN address blocks: 30239
ARIN Region origin ASes present in the Internet Routing Table: 11461
ARIN Region origin ASes announcing only one prefix: 4382
ARIN Region transit ASes present in the Internet Routing Table: 1049
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 21
Number of ARIN addresses announced to Internet: 327876224
Equivalent to 19 /8s, 138 /16s and 254 /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: 44779
Total RIPE prefixes after maximum aggregation: 29328
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41363
Unique aggregates announced from the RIPE address blocks: 26410
RIPE Region origin ASes present in the Internet Routing Table: 9436
RIPE Region origin ASes announcing only one prefix: 4973
RIPE Region transit ASes present in the Internet Routing Table: 1514
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 299320320
Equivalent to 17 /8s, 215 /16s and 68 /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: 14529
Total LACNIC prefixes after maximum aggregation: 4091
LACNIC Deaggregation factor: 3.55
Prefixes being announced from the LACNIC address blocks: 12622
Unique aggregates announced from the LACNIC address blocks: 7113
LACNIC Region origin ASes present in the Internet Routing Table: 776
LACNIC Region origin ASes announcing only one prefix: 252
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: 38821376
Equivalent to 2 /8s, 80 /16s and 94 /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: 2550
Total AfriNIC prefixes after maximum aggregation: 993
AfriNIC Deaggregation factor: 2.57
Prefixes being announced from the AfriNIC address blocks: 1904
Unique aggregates announced from the AfriNIC address blocks: 1175
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: 5977088
Equivalent to 0 /8s, 91 /16s and 52 /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 1289 9448 283 CHINANET-BACKBONE
4755 1179 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1103 78 380 Sify Limited
9498 970 469 71 BHARTI BT INTERNET LTD.
4766 785 4943 314 Korea Telecom (KIX)
23577 783 35 709 Korea Telecom (ATM-MPLS)
17488 626 41 32 Hathway IP Over Cable Interne
7545 610 142 77 TPG Internet Pty Ltd
1221 571 1956 445 Telstra Pty Ltd
18101 538 116 27 Reliance Infocom Ltd Internet
17676 503 10935 65 Softbank BB Corp.
4668 502 68 10 LG-EDS Systems Inc.
4812 457 791 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 356 34 172 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 1489 6124 971 AT&T WorldNet Services
4323 1272 1021 353 Time Warner Telecom
2386 1090 558 731 AT&T Data Communications Serv
6478 1087 333 152 AT&T Worldnet Services
6197 1034 682 501 BellSouth Network Solutions,
11492 1024 102 13 Cable One
18566 999 288 9 Covad Communications
174 942 6792 861 Cogent Communications
701 935 6659 734 UUNET Technologies, Inc.
1239 820 2715 571 Sprint
20115 811 722 426 Charter Communications
7011 780 225 463 Citizens Utilities
19262 723 2566 164 Verizon Global Networks
209 719 3732 570 Qwest
22773 697 1871 42 Cox Communications, Inc.
721 619 21756 274 DLA Systems Automation Center
852 591 1096 378 Telus Advanced Communications
5668 582 160 17 CenturyTel Internet Holdings,
7029 568 456 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 340 47 32 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 273 95 251 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 208 354 197 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 189 134 24 Goldenlines main autonomous s
12479 185 578 6 Uni2 Autonomous System
3300 183 171 89 AUCS Communications Services
786 175 1795 175 The JANET IP Service
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1072 2009 211 UniNet S.A. de C.V.
11830 483 299 19 Instituto Costarricense de El
11172 361 116 66 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
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 227 180 24 Telefonica Del Peru
6503 211 155 83 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 154 11 29 ANDINET ON LINE
19429 148 91 38 E.T.B.
14522 147 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 217 188 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 1179 1102 Videsh Sanchar Nigam Ltd. Aut
11492 1024 1011 Cable One
4134 1289 1006 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1087 935 AT&T Worldnet Services
4323 1272 919 Time Warner Telecom
9498 970 899 BHARTI BT INTERNET LTD.
8151 1072 861 UniNet S.A. de C.V.
9583 1103 723 Sify Limited
22773 697 655 Cox Communications, Inc.
17488 626 594 Hathway IP Over Cable Interne
5668 582 565 CenturyTel Internet Holdings,
19262 723 559 Verizon Global Networks
6197 1034 533 BellSouth Network Solutions,
7545 610 533 TPG Internet Pty Ltd
19916 568 514 OLM LLC
18101 538 511 Reliance Infocom Ltd Internet
855 565 494 Canadian Research Network
4668 502 492 LG-EDS Systems Inc.
7029 568 487 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 /15:851 /16:9337 /17:3805 /18:6283
/19:13421 /20:15130 /21:13604 /22:17691 /23:19064 /24:115149
/25:773 /26:810 /27:485 /28:61 /29:40 /30:69
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1078 1087 AT&T Worldnet Services
11492 1010 1024 Cable One
18566 981 999 Covad Communications
9583 943 1103 Sify Limited
2386 812 1090 AT&T Data Communications Serv
7018 806 1489 AT&T WorldNet Services
6197 797 1034 BellSouth Network Solutions,
23577 769 783 Korea Telecom (ATM-MPLS)
7011 683 780 Citizens Utilities
9498 632 970 BHARTI BT INTERNET LTD.
4766 590 785 Korea Telecom (KIX)
4755 574 1179 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 530 1272 Time Warner Telecom
4668 492 502 LG-EDS Systems Inc.
15270 488 520 PaeTec.net -a division of Pae
855 463 565 Canadian Research Network
18101 462 538 Reliance Infocom Ltd Internet
5668 450 582 CenturyTel Internet Holdings,
17488 448 626 Hathway IP Over Cable Interne
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 20:36 24:948 25:1
32:53 38:295 40:57 41:114 44:2 47:3
52:4 55:1 56:3 57:25 58:333 59:361
60:227 61:903 62:989 63:1966 64:3114 65:2317
66:3244 67:776 68:645 69:1784 70:490 71:110
72:1248 73:1 74:327 75:243 76:31 77:130
80:825 81:791 82:628 83:379 84:435 85:762
86:372 87:461 88:251 89:834 90:19 91:267
97:1 116:10 121:164 122:521 123:64 124:759
125:920 128:273 129:220 130:125 131:349 132:51
133:10 134:192 135:38 136:175 137:87 138:193
139:55 140:482 141:149 142:369 143:213 144:289
145:43 146:323 147:146 148:381 149:179 150:115
151:124 152:92 153:121 154:5 155:252 156:152
157:181 158:161 159:154 160:103 161:90 162:228
163:142 164:452 165:403 166:247 167:295 168:500
169:120 170:394 171:15 172:1 189:243 190:548
192:5740 193:3779 194:3072 195:2196 196:925 198:3749
199:3280 200:4656 201:1008 202:7249 203:7399 204:3953
205:2131 206:2413 207:2882 208:2614 209:3598 210:2386
211:933 212:1298 213:1429 214:407 215:39 216:4010
217:1165 218:354 219:303 220:896 221:392 222:268
End of report
Report Website: http://thyme.apnic.net
