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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 29 Jun, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/06/29/0400
Analysis Summary
----------------
BGP routing table entries examined: 224515
Prefixes after maximum aggregation: 118359
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 109147
Total ASes present in the Internet Routing Table: 25555
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22257
Origin ASes announcing only one prefix: 10811
Transit ASes present in the Internet Routing Table: 3298
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: 22
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 11
Unregistered ASNs in the Routing Table: 14
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1730649312
Equivalent to 103 /8s, 39 /16s and 156 /24s
Percentage of available address space announced: 46.7
Percentage of allocated address space announced: 61.9
Percentage of available address space allocated: 75.5
Total number of prefixes smaller than registry allocations: 117831
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 52579
Total APNIC prefixes after maximum aggregation: 20494
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 49485
Unique aggregates announced from the APNIC address blocks: 21719
APNIC Region origin ASes present in the Internet Routing Table: 2991
APNIC Prefixes per ASN: 16.54
APNIC Region origin ASes announcing only one prefix: 807
APNIC Region transit ASes present in the Internet Routing Table: 452
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 301482144
Equivalent to 17 /8s, 248 /16s and 64 /24s
Percentage of available APNIC address space announced: 74.7
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: 107089
Total ARIN prefixes after maximum aggregation: 62252
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 78716
Unique aggregates announced from the ARIN address blocks: 31143
ARIN Region origin ASes present in the Internet Routing Table: 11660
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4485
ARIN Region transit ASes present in the Internet Routing Table: 1063
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 17
Number of ARIN addresses announced to Internet: 337462336
Equivalent to 20 /8s, 29 /16s and 68 /24s
Percentage of available ARIN address space announced: 74.5
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: 46974
Total RIPE prefixes after maximum aggregation: 30338
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 43387
Unique aggregates announced from the RIPE address blocks: 28796
RIPE Region origin ASes present in the Internet Routing Table: 9824
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5201
RIPE Region transit ASes present in the Internet Routing Table: 1565
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 320969408
Equivalent to 19 /8s, 33 /16s and 154 /24s
Percentage of available RIPE address space announced: 79.7
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
40960-44031
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: 15303
Total LACNIC prefixes after maximum aggregation: 4252
LACNIC Deaggregation factor: 3.60
Prefixes being announced from the LACNIC address blocks: 13337
Unique aggregates announced from the LACNIC address blocks: 7522
LACNIC Region origin ASes present in the Internet Routing Table: 814
LACNIC Prefixes per ASN: 16.38
LACNIC Region origin ASes announcing only one prefix: 261
LACNIC Region transit ASes present in the Internet Routing Table: 144
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 39957760
Equivalent to 2 /8s, 97 /16s and 181 /24s
Percentage of available LACNIC address space announced: 59.5
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: 2564
Total AfriNIC prefixes after maximum aggregation: 1015
AfriNIC Deaggregation factor: 2.53
Prefixes being announced from the AfriNIC address blocks: 2042
Unique aggregates announced from the AfriNIC address blocks: 1242
AfriNIC Region origin ASes present in the Internet Routing Table: 193
AfriNIC Prefixes per ASN: 10.58
AfriNIC Region origin ASes announcing only one prefix: 57
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: 6188544
Equivalent to 0 /8s, 94 /16s and 110 /24s
Percentage of available AfriNIC address space announced: 18.4
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 1346 10173 282 CHINANET-BACKBONE
4755 1242 382 72 Videsh Sanchar Nigam Ltd. Aut
9583 1108 79 395 Sify Limited
9498 980 469 66 BHARTI BT INTERNET LTD.
4766 788 4927 311 Korea Telecom (KIX)
23577 776 35 704 Korea Telecom (ATM-MPLS)
17488 707 46 43 Hathway IP Over Cable Interne
7545 688 151 110 TPG Internet Pty Ltd
18101 565 117 36 Reliance Infocom Ltd Internet
1221 550 1954 425 Telstra Pty Ltd
4812 513 904 92 China Telecom (Shanghai)
4668 508 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
9443 467 121 77 Primus Telecommunications
4802 411 105 151 Wantree Development
7474 410 218 270 SingTel Optus Pty Ltd
17974 370 130 13 PT TELEKOMUNIKASI INDONESIA
9829 362 258 14 BSNL National Internet Backbo
2907 361 1700 301 SINET Japan
4837 349 4940 163 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1474 6087 986 AT&T WorldNet Services
4323 1314 1042 368 Time Warner Telecom
2386 1202 615 752 AT&T Data Communications Serv
6478 1123 367 152 AT&T Worldnet Services
11492 1094 107 23 Cable One
6197 1026 717 510 BellSouth Network Solutions,
18566 1011 288 9 Covad Communications
174 958 6778 869 Cogent Communications
701 950 6597 723 UUNET Technologies, Inc.
7011 848 251 538 Citizens Utilities
1239 808 2734 579 Sprint
20115 799 730 425 Charter Communications
19262 779 2724 202 Verizon Global Networks
209 752 3855 580 Qwest
22773 728 1892 44 Cox Communications, Inc.
5668 615 169 21 CenturyTel Internet Holdings,
7029 602 488 80 Alltel Information Services,
852 580 1089 364 Telus Advanced Communications
855 575 254 73 Canadian Research Network
19916 568 49 51 OLM LLC
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 514 1075 136 Telenor Internet Access
702 513 1938 404 UUNET - Commercial IP service
24863 354 56 37 LINKdotNET AS number
3301 310 1455 290 TeliaNet Sweden
3320 306 6034 257 Deutsche Telekom AG
6746 280 129 256 Dynamic Network Technologies,
680 264 2044 255 DFN-IP service G-WiN
3215 254 2376 96 France Telecom Transpac
8220 249 444 241 COLT Telecommunications
8708 248 419 238 Romania Data Systems S.A.
8551 223 213 28 Bezeq International
3269 222 2775 74 TELECOM ITALIA
5089 221 1658 53 NTL Group Limited
3352 219 1864 41 Ibernet, Internet Access Netw
9121 210 1441 24 TTnet Autonomous System
9116 200 136 25 Goldenlines main autonomous s
1257 196 1196 174 SWIPnet Swedish IP Network
3246 195 329 185 Song Networks
12479 191 578 6 Uni2 Autonomous System
3300 184 171 90 AUCS Communications Services
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 851 1917 211 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 370 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
22047 313 238 12 VTR PUNTO NET S.A.
7303 299 145 32 Telecom Argentina Stet-France
14117 277 19 15 Telefonica del Sur S.A.
6471 275 74 33 ENTEL CHILE S.A.
11556 231 128 4 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
6503 212 188 84 AVANTEL, S.A.
10620 207 59 14 TVCABLE BOGOTA
23216 194 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
14522 173 27 8 SatNet S.A.
21826 157 27 59 INTERCABLE
7910 155 11 30 ANDINET ON LINE
19169 153 10 31 Telconet
20299 151 23 12 NEWCOM AMERICAS
7738 146 474 22 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 280 867 221 The Internet Solution
8452 227 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 136 301 111 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 123 8 15 Internet Egypt Network
24835 85 48 6 RAYA Telecom - Egypt
2905 77 174 73 The Internetworking Company o
15475 75 84 4 Nile Online
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 49 16 14 MAURITIUS TELECOM
5713 45 294 35 Telkom SA Ltd
33774 43 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 36 2 2 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 32 6 3 Jambonet Autonomous system
21280 28 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1242 1170 Videsh Sanchar Nigam Ltd. Aut
11492 1094 1071 Cable One
4134 1346 1064 CHINANET-BACKBONE
18566 1011 1002 Covad Communications
6478 1123 971 AT&T Worldnet Services
4323 1314 946 Time Warner Telecom
9498 980 914 BHARTI BT INTERNET LTD.
9583 1108 713 Sify Limited
22773 728 684 Cox Communications, Inc.
17488 707 664 Hathway IP Over Cable Interne
8151 851 640 UniNet S.A. de C.V.
5668 615 594 CenturyTel Internet Holdings,
7545 688 578 TPG Internet Pty Ltd
19262 779 577 Verizon Global Networks
18101 565 529 Reliance Infocom Ltd Internet
6517 560 525 Yipes Communications, Inc.
7029 602 522 Alltel Information Services,
19916 568 517 OLM LLC
6197 1026 516 BellSouth Network Solutions,
15270 551 516 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
42923 UNALLOCATED 88.199.162.0/24 12968 Crowley Data Poland,
39701 UNALLOCATED 88.204.14.0/24 29047 Stack Ltd. Autonomou
42935 UNALLOCATED 91.123.208.0/24 12741 INTERNETIA Commercia
42842 UNALLOCATED 91.193.176.0/22 12389 JSC Rostelecom
43196 UNALLOCATED 91.194.154.0/23 174 Cogent Communication
42301 UNALLOCATED 193.33.38.0/23 6820 LEIVO Autonomous Sys
43078 UNALLOCATED 193.200.190.0/24 21219 Datacom Autonomous S
42452 UNALLOCATED 194.0.129.0/24 8751 Media Sat S.A.
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
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 /10:15 /11:36 /12:126
/13:252 /14:463 /15:903 /16:9513 /17:4019 /18:6501
/19:13680 /20:15851 /21:14291 /22:18587 /23:19622 /24:118255
/25:801 /26:982 /27:479 /28:75 /29:10 /30:14
/31:0 /32:13
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1113 1123 AT&T Worldnet Services
11492 1085 1094 Cable One
18566 993 1011 Covad Communications
9583 950 1108 Sify Limited
2386 903 1202 AT&T Data Communications Serv
7018 800 1474 AT&T WorldNet Services
6197 777 1026 BellSouth Network Solutions,
23577 762 776 Korea Telecom (ATM-MPLS)
7011 748 848 Citizens Utilities
9498 651 980 BHARTI BT INTERNET LTD.
4755 641 1242 Videsh Sanchar Nigam Ltd. Aut
4766 595 788 Korea Telecom (KIX)
19916 563 568 OLM LLC
4323 548 1314 Time Warner Telecom
17488 530 707 Hathway IP Over Cable Interne
6517 526 560 Yipes Communications, Inc.
15270 518 551 PaeTec.net -a division of Pae
4668 498 508 LG-EDS Systems Inc.
18101 480 565 Reliance Infocom Ltd Internet
5668 479 615 CenturyTel Internet Holdings,
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1811 15:18
16:3 17:3 18:11 20:38 24:934 25:1
32:51 33:3 38:329 40:61 41:180 44:2
47:4 52:4 55:3 56:3 57:25 58:424
59:392 60:313 61:990 62:877 63:1977 64:3124
65:2350 66:3281 67:746 68:632 69:1888 70:431
71:111 72:1332 73:1 74:542 75:265 76:75
77:257 78:2 80:814 81:814 82:707 83:384
84:419 85:852 86:343 87:486 88:285 89:879
90:7 91:382 97:6 98:3 116:210 117:57
121:212 122:554 123:119 124:834 125:945 128:287
129:224 130:127 131:366 132:53 133:9 134:193
135:39 136:184 137:80 138:148 139:73 140:479
141:173 142:374 143:251 144:298 145:43 146:321
147:120 148:397 149:144 150:113 151:160 152:93
153:126 154:4 155:254 156:152 157:211 158:157
159:158 160:106 161:92 162:221 163:181 164:445
165:408 166:293 167:287 168:512 169:120 170:406
171:18 172:1 189:60 190:677 192:5763 193:3891
194:3167 195:2244 196:937 198:3828 199:3282 200:4902
201:1070 202:7402 203:7576 204:3961 205:2017 206:2416
207:2822 208:2699 209:3512 210:2471 211:959 212:1313
213:1483 214:416 215:40 216:3998 217:1152 218:360
219:383 220:978 221:411 222:264
End of report
