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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 05 Apr, 2007
Analysis Summary
----------------
BGP routing table entries examined: 217248
Prefixes after maximum aggregation: 116130
Deaggregation factor: 1.87
Unique aggregates announced to Internet: 104346
Total ASes present in the Internet Routing Table: 24811
Origin-only ASes present in the Internet Routing Table: 21611
Origin ASes announcing only one prefix: 10440
Transit ASes present in the Internet Routing Table: 3200
Transit-only ASes present in the Internet Routing Table: 72
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 12
Number of addresses announced to Internet: 1701998152
Equivalent to 101 /8s, 114 /16s and 110 /24s
Percentage of available address space announced: 45.9
Percentage of allocated address space announced: 63.1
Percentage of available address space allocated: 72.8
Total number of prefixes smaller than registry allocations: 113260
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 49821
Total APNIC prefixes after maximum aggregation: 20062
APNIC Deaggregation factor: 2.48
Prefixes being announced from the APNIC address blocks: 46881
Unique aggregates announced from the APNIC address blocks: 21098
APNIC Region origin ASes present in the Internet Routing Table: 2912
APNIC Region origin ASes announcing only one prefix: 783
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: 17
Number of APNIC addresses announced to Internet: 291050176
Equivalent to 17 /8s, 89 /16s and 18 /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: 105486
Total ARIN prefixes after maximum aggregation: 61698
ARIN Deaggregation factor: 1.71
Prefixes being announced from the ARIN address blocks: 77502
Unique aggregates announced from the ARIN address blocks: 30108
ARIN Region origin ASes present in the Internet Routing Table: 11449
ARIN Region origin ASes announcing only one prefix: 4378
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: 324927104
Equivalent to 19 /8s, 93 /16s and 254 /24s
Percentage of available ARIN address space announced: 71.7
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: 44897
Total RIPE prefixes after maximum aggregation: 29291
RIPE Deaggregation factor: 1.53
Prefixes being announced from the RIPE address blocks: 41459
Unique aggregates announced from the RIPE address blocks: 26349
RIPE Region origin ASes present in the Internet Routing Table: 9414
RIPE Region origin ASes announcing only one prefix: 4963
RIPE Region transit ASes present in the Internet Routing Table: 1516
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 299123200
Equivalent to 17 /8s, 212 /16s and 66 /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: 14504
Total LACNIC prefixes after maximum aggregation: 4081
LACNIC Deaggregation factor: 3.55
Prefixes being announced from the LACNIC address blocks: 12593
Unique aggregates announced from the LACNIC address blocks: 7081
LACNIC Region origin ASes present in the Internet Routing Table: 778
LACNIC Region origin ASes announcing only one prefix: 258
LACNIC Region transit ASes present in the Internet Routing Table: 136
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 38797568
Equivalent to 2 /8s, 80 /16s and 1 /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: 2535
Total AfriNIC prefixes after maximum aggregation: 992
AfriNIC Deaggregation factor: 2.56
Prefixes being announced from the AfriNIC address blocks: 1889
Unique aggregates announced from the AfriNIC address blocks: 1169
AfriNIC Region origin ASes present in the Internet Routing Table: 185
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: 3.6
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 5971968
Equivalent to 0 /8s, 91 /16s and 32 /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 1286 9438 280 CHINANET-BACKBONE
4755 1175 383 77 Videsh Sanchar Nigam Ltd. Aut
9583 1104 78 380 Sify Limited
9498 968 469 70 BHARTI BT INTERNET LTD.
4766 788 4943 314 Korea Telecom (KIX)
23577 784 35 709 Korea Telecom (ATM-MPLS)
17488 626 41 32 Hathway IP Over Cable Interne
7545 612 142 79 TPG Internet Pty Ltd
1221 572 1972 447 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 453 111 73 Primus Telecommunications
7474 382 216 260 SingTel Optus Pty Ltd
17557 370 35 175 Pakistan Telecom
4802 359 86 150 Wantree Development
4837 341 4596 157 chinanet IDC center beijing n
17974 341 129 14 PT TELEKOMUNIKASI INDONESIA
2907 338 1749 311 SINET Japan
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1499 6127 982 AT&T WorldNet Services
4323 1268 1021 353 Time Warner Telecom
2386 1089 558 731 AT&T Data Communications Serv
6478 1084 333 156 AT&T Worldnet Services
6197 1032 680 500 BellSouth Network Solutions,
11492 1022 102 12 Cable One
18566 999 288 9 Covad Communications
701 957 6660 726 UUNET Technologies, Inc.
174 941 6791 860 Cogent Communications
1239 818 2715 571 Sprint
20115 811 722 426 Charter Communications
7011 781 225 463 Citizens Utilities
209 722 3733 572 Qwest
19262 720 2582 162 Verizon Global Networks
22773 695 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,
19916 568 49 54 OLM LLC
6198 566 582 263 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 521 1941 415 UUNET - Commercial IP service
24863 339 46 31 LINKdotNET AS number
3301 309 1455 289 TeliaNet Sweden
3320 303 4993 251 Deutsche Telekom AG
6746 273 95 251 Dynamic Network Technologies,
8220 268 468 258 COLT Telecommunications
680 257 2044 250 DFN-IP service G-WiN
5416 254 16 12 BATELCO-BH
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 207 354 196 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
12479 185 578 6 Uni2 Autonomous System
3300 183 171 88 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 1064 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 229 180 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 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 208 188 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 113 7 7 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 14 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 25 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1175 1098 Videsh Sanchar Nigam Ltd. Aut
11492 1022 1010 Cable One
4134 1286 1006 CHINANET-BACKBONE
18566 999 990 Covad Communications
6478 1084 928 AT&T Worldnet Services
4323 1268 915 Time Warner Telecom
9498 968 898 BHARTI BT INTERNET LTD.
8151 1064 853 UniNet S.A. de C.V.
9583 1104 724 Sify Limited
22773 695 653 Cox Communications, Inc.
17488 626 594 Hathway IP Over Cable Interne
5668 582 565 CenturyTel Internet Holdings,
19262 720 558 Verizon Global Networks
7545 612 533 TPG Internet Pty Ltd
6197 1032 532 BellSouth Network Solutions,
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 565 484 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 /11:33 /12:122
/13:234 /14:444 /15:850 /16:9346 /17:3802 /18:6274
/19:13415 /20:15050 /21:13622 /22:17673 /23:19048 /24:115023
/25:773 /26:807 /27:484 /28:60 /29:39 /30:68
/31:0 /32:40
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1075 1084 AT&T Worldnet Services
11492 1008 1022 Cable One
18566 981 999 Covad Communications
9583 944 1104 Sify Limited
7018 816 1499 AT&T WorldNet Services
2386 811 1089 AT&T Data Communications Serv
6197 797 1032 BellSouth Network Solutions,
23577 770 784 Korea Telecom (ATM-MPLS)
7011 684 781 Citizens Utilities
9498 631 968 BHARTI BT INTERNET LTD.
4766 593 788 Korea Telecom (KIX)
4755 571 1175 Videsh Sanchar Nigam Ltd. Aut
19916 563 568 OLM LLC
4323 527 1268 Time Warner Telecom
4668 492 502 LG-EDS Systems Inc.
15270 485 517 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)
----------------------------------------------
4:8 7:1 8:65 9:1 12:1791 15:19
16:3 17:3 18:8 20:36 24:933 25:1
32:53 38:294 40:56 41:112 44:2 47:4
52:4 55:1 56:3 57:25 58:360 59:359
60:227 61:906 62:988 63:1966 64:3097 65:2317
66:3203 67:772 68:643 69:1789 70:490 71:111
72:1244 73:1 74:324 75:174 76:31 77:157
80:812 81:783 82:664 83:377 84:478 85:758
86:382 87:448 88:248 89:882 90:19 91:251
97:1 116:10 117:1 118:1 119:1 120:1
121:162 122:522 123:63 124:754 125:914 128:274
129:223 130:122 131:353 132:51 133:10 134:190
135:38 136:175 137:87 138:193 139:55 140:480
141:143 142:370 143:213 144:280 145:43 146:323
147:147 148:383 149:187 150:115 151:123 152:93
153:121 154:5 155:250 156:152 157:180 158:159
159:154 160:103 161:90 162:235 163:141 164:452
165:401 166:246 167:293 168:498 169:120 170:393
171:15 172:1 189:233 190:548 192:5741 193:3774
194:3069 195:2203 196:916 198:3745 199:3290 200:4636
201:1012 202:7257 203:7418 204:3942 205:2094 206:2412
207:2878 208:2613 209:3597 210:2392 211:929 212:1300
213:1426 214:404 215:39 216:3983 217:1172 218:354
219:300 220:894 221:388 222:270
End of report
Report Website: http://thyme.apnic.net
