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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Tue 07 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/07/0400
Analysis Summary
----------------
BGP routing table entries examined: 227258
Prefixes after maximum aggregation: 119326
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 110521
Total ASes present in the Internet Routing Table: 25856
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22531
Origin ASes announcing only one prefix: 11002
Transit ASes present in the Internet Routing Table: 3325
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 21
Max AS path prepend of ASN (35389) 16
Prefixes from unregistered ASNs in the Routing Table: 8
Unregistered ASNs in the Routing Table: 4
Prefixes from 32-bit ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 11
Number of addresses announced to Internet: 1745313248
Equivalent to 104 /8s, 7 /16s and 93 /24s
Percentage of available address space announced: 47.1
Percentage of allocated address space announced: 61.7
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 119859
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53269
Total APNIC prefixes after maximum aggregation: 20711
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50210
Unique aggregates announced from the APNIC address blocks: 22059
APNIC Region origin ASes present in the Internet Routing Table: 3025
APNIC Prefixes per ASN: 16.60
APNIC Region origin ASes announcing only one prefix: 821
APNIC Region transit ASes present in the Internet Routing Table: 462
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 307923616
Equivalent to 18 /8s, 90 /16s and 138 /24s
Percentage of available APNIC address space announced: 76.3
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: 107515
Total ARIN prefixes after maximum aggregation: 62553
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79145
Unique aggregates announced from the ARIN address blocks: 31560
ARIN Region origin ASes present in the Internet Routing Table: 11728
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4531
ARIN Region transit ASes present in the Internet Routing Table: 1073
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341435392
Equivalent to 20 /8s, 89 /16s and 228 /24s
Percentage of available ARIN address space announced: 75.4
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: 47796
Total RIPE prefixes after maximum aggregation: 30665
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44133
Unique aggregates announced from the RIPE address blocks: 29058
RIPE Region origin ASes present in the Internet Routing Table: 9985
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5313
RIPE Region transit ASes present in the Internet Routing Table: 1582
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323478272
Equivalent to 19 /8s, 71 /16s and 227 /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
40960-44031
RIPE Address Blocks 62/8, 77/8, 78/7, 80/4, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 16059
Total LACNIC prefixes after maximum aggregation: 4352
LACNIC Deaggregation factor: 3.69
Prefixes being announced from the LACNIC address blocks: 14111
Unique aggregates announced from the LACNIC address blocks: 7824
LACNIC Region origin ASes present in the Internet Routing Table: 838
LACNIC Prefixes per ASN: 16.84
LACNIC Region origin ASes announcing only one prefix: 272
LACNIC Region transit ASes present in the Internet Routing Table: 141
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41548544
Equivalent to 2 /8s, 121 /16s and 251 /24s
Percentage of available LACNIC address space announced: 61.9
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: 2608
Total AfriNIC prefixes after maximum aggregation: 1035
AfriNIC Deaggregation factor: 2.52
Prefixes being announced from the AfriNIC address blocks: 2165
Unique aggregates announced from the AfriNIC address blocks: 1306
AfriNIC Region origin ASes present in the Internet Routing Table: 201
AfriNIC Prefixes per ASN: 10.77
AfriNIC Region origin ASes announcing only one prefix: 65
AfriNIC Region transit ASes present in the Internet Routing Table: 30
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6379520
Equivalent to 0 /8s, 97 /16s and 88 /24s
Percentage of available AfriNIC address space announced: 19.0
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 1373 11078 287 CHINANET-BACKBONE
4755 1314 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1121 80 398 Sify Limited
9498 1009 533 70 BHARTI BT INTERNET LTD.
4766 805 4931 317 Korea Telecom (KIX)
23577 787 34 684 Korea Telecom (ATM-MPLS)
17488 738 48 58 Hathway IP Over Cable Interne
7545 694 150 114 TPG Internet Pty Ltd
18101 581 118 43 Reliance Infocom Ltd Internet
1221 549 1951 427 Telstra Pty Ltd
4812 530 915 96 China Telecom (Shanghai)
4668 512 68 10 LG-EDS Systems Inc.
17676 504 10935 65 Softbank BB Corp.
4808 478 768 110 CNCGROUP IP network: China169
9443 472 122 77 Primus Telecommunications
4802 418 112 153 Wantree Development
7474 416 218 270 SingTel Optus Pty Ltd
17974 363 130 13 PT TELEKOMUNIKASI INDONESIA
9829 362 258 14 BSNL National Internet Backbo
4837 352 4944 164 chinanet IDC center beijing n
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1469 6074 996 AT&T WorldNet Services
4323 1325 1020 370 Time Warner Telecom
2386 1194 614 739 AT&T Data Communications Serv
11492 1116 109 15 Cable One
6478 1107 321 127 AT&T Worldnet Services
6197 1027 717 509 BellSouth Network Solutions,
18566 1018 288 9 Covad Communications
174 965 6776 855 Cogent Communications
701 940 6562 718 UUNET Technologies, Inc.
7011 904 259 545 Citizens Utilities
1239 812 2742 578 Sprint
20115 806 740 431 Charter Communications
19262 768 2765 187 Verizon Global Networks
22773 751 2148 49 Cox Communications, Inc.
209 744 3869 589 Qwest
5668 627 171 23 CenturyTel Internet Holdings,
6517 576 161 37 Yipes Communications, Inc.
855 574 254 73 Canadian Research Network
852 573 1093 364 Telus Advanced Communications
6198 569 613 259 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 515 1075 138 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 363 57 41 LINKdotNET AS number
9116 323 168 26 Goldenlines main autonomous s
3301 313 1456 293 TeliaNet Sweden
3320 313 6035 259 Deutsche Telekom AG
6746 287 130 263 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 264 2044 255 DFN-IP service G-WiN
8220 257 445 242 COLT Telecommunications
3215 255 2376 96 France Telecom Transpac
8708 252 420 241 Romania Data Systems S.A.
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
8551 215 212 27 Bezeq International
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 194 1195 172 SWIPnet Swedish IP Network
12479 192 578 6 Uni2 Autonomous System
3246 185 253 176 Song Networks
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 899 1958 205 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
16814 426 26 9 NSS, S.A.
11172 377 116 63 Servicios Alestra S.A de C.V
14522 333 28 7 SatNet S.A.
7303 319 152 40 Telecom Argentina Stet-France
22047 318 246 13 VTR PUNTO NET S.A.
6471 312 75 31 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
10481 261 104 9 Prima S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 174 26 Telefonica Del Peru
10620 217 61 19 TVCABLE BOGOTA
6503 203 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
20299 163 24 22 NEWCOM AMERICAS
19169 162 10 24 Telconet
21826 160 28 59 INTERCABLE
7738 159 506 23 Telecomunicacoes da Bahia S.A
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 282 867 223 The Internet Solution
8452 229 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 123 8 15 Internet Egypt Network
24835 89 48 6 RAYA Telecom - Egypt
15475 77 84 4 Nile Online
2905 75 174 72 The Internetworking Company o
2561 62 6 2 Egyptian Universities Network
15706 56 12 4 Sudatel Internet Exchange Aut
23889 52 24 15 MAURITIUS TELECOM
33776 47 3 5 Starcomms Nigeria Limited
5713 46 294 36 Telkom SA Ltd
33774 46 29 24 AS Number for Telecom Algeria
16637 42 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
21280 29 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
21491 24 17 2 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1314 1243 Videsh Sanchar Nigam Ltd. Aut
11492 1116 1101 Cable One
4134 1373 1086 CHINANET-BACKBONE
18566 1018 1009 Covad Communications
6478 1107 980 AT&T Worldnet Services
4323 1325 955 Time Warner Telecom
9498 1009 939 BHARTI BT INTERNET LTD.
9583 1121 723 Sify Limited
22773 751 702 Cox Communications, Inc.
8151 899 694 UniNet S.A. de C.V.
17488 738 680 Hathway IP Over Cable Interne
5668 627 604 CenturyTel Internet Holdings,
19262 768 581 Verizon Global Networks
7545 694 580 TPG Internet Pty Ltd
6517 576 539 Yipes Communications, Inc.
18101 581 538 Reliance Infocom Ltd Internet
15270 565 528 PaeTec.net -a division of Pae
6197 1027 518 BellSouth Network Solutions,
19916 568 517 OLM LLC
4668 512 502 LG-EDS Systems Inc.
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
64513 PRIVATE 63.171.234.0/26 1803 SPRINT
64513 PRIVATE 63.171.234.64/26 1803 SPRINT
64513 PRIVATE 63.171.234.128/26 1803 SPRINT
64513 PRIVATE 63.171.234.192/26 1803 SPRINT
38347 UNALLOCATED 116.212.160.0/21 9389 BEIJING SHENZHOU GRE
38347 UNALLOCATED 116.212.168.0/21 9389 BEIJING SHENZHOU GRE
65535 PRIVATE 193.203.218.0/23 38931 Traffic-Media
24410 UNALLOCATED 203.119.28.0/24 4134 CHINANET-BACKBONE
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 /12:131
/13:257 /14:469 /15:904 /16:9574 /17:4024 /18:6544
/19:13822 /20:16096 /21:14658 /22:18969 /23:19908 /24:119460
/25:771 /26:1015 /27:491 /28:74 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1107 1116 Cable One
6478 1106 1107 AT&T Worldnet Services
18566 1000 1018 Covad Communications
9583 963 1121 Sify Limited
2386 888 1194 AT&T Data Communications Serv
7018 806 1469 AT&T WorldNet Services
7011 802 904 Citizens Utilities
6197 781 1027 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 705 1314 Videsh Sanchar Nigam Ltd. Aut
9498 678 1009 BHARTI BT INTERNET LTD.
4766 595 805 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 561 738 Hathway IP Over Cable Interne
4323 557 1325 Time Warner Telecom
6517 541 576 Yipes Communications, Inc.
15270 530 565 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 492 627 CenturyTel Internet Holdings,
18101 491 581 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1790 15:19
16:3 17:3 18:12 20:37 24:926 25:1
32:57 33:3 38:343 40:60 41:244 44:2
47:4 52:4 55:3 56:3 57:25 58:470
59:381 60:343 61:998 62:891 63:1993 64:3138
65:2348 66:3314 67:752 68:627 69:1920 70:446
71:102 72:1375 73:2 74:597 75:251 76:87
77:271 78:32 80:832 81:827 82:670 83:373
84:552 85:852 86:338 87:455 88:291 89:950
90:13 91:451 97:6 116:267 117:91 121:252
122:578 123:152 124:873 125:971 128:293 129:212
130:140 131:361 132:54 133:9 134:198 135:39
136:189 137:81 138:149 139:71 140:492 141:172
142:377 143:236 144:287 145:46 146:325 147:120
148:404 149:142 150:111 151:159 152:90 153:120
154:2 155:257 156:157 157:212 158:158 159:166
160:108 161:95 162:184 163:181 164:470 165:394
166:265 167:293 168:506 169:121 170:411 171:22
172:1 189:70 190:921 192:5751 193:3949 194:3173
195:2260 196:965 198:3806 199:3279 200:5051 201:1151
202:7383 203:7567 204:3945 205:1961 206:2414 207:2801
208:2743 209:3473 210:2420 211:970 212:1291 213:1460
214:414 215:40 216:3968 217:1155 218:352 219:386
220:1017 221:412 222:267
End of report
