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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Sun 05 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/05/0400
Analysis Summary
----------------
BGP routing table entries examined: 227202
Prefixes after maximum aggregation: 119260
Deaggregation factor: 1.91
Unique aggregates announced to Internet: 110484
Total ASes present in the Internet Routing Table: 25848
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22513
Origin ASes announcing only one prefix: 11000
Transit ASes present in the Internet Routing Table: 3335
Transit-only ASes present in the Internet Routing Table: 77
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: 1743074272
Equivalent to 103 /8s, 229 /16s and 51 /24s
Percentage of available address space announced: 47.0
Percentage of allocated address space announced: 61.6
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 119794
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53245
Total APNIC prefixes after maximum aggregation: 20692
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50196
Unique aggregates announced from the APNIC address blocks: 22037
APNIC Region origin ASes present in the Internet Routing Table: 3023
APNIC Prefixes per ASN: 16.60
APNIC Region origin ASes announcing only one prefix: 817
APNIC Region transit ASes present in the Internet Routing Table: 461
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 306074016
Equivalent to 18 /8s, 62 /16s and 81 /24s
Percentage of available APNIC address space announced: 75.8
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: 107537
Total ARIN prefixes after maximum aggregation: 62502
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79209
Unique aggregates announced from the ARIN address blocks: 31554
ARIN Region origin ASes present in the Internet Routing Table: 11716
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4525
ARIN Region transit ASes present in the Internet Routing Table: 1074
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341389824
Equivalent to 20 /8s, 89 /16s and 50 /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: 47760
Total RIPE prefixes after maximum aggregation: 30675
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44112
Unique aggregates announced from the RIPE address blocks: 29080
RIPE Region origin ASes present in the Internet Routing Table: 9997
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5324
RIPE Region transit ASes present in the Internet Routing Table: 1587
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323541504
Equivalent to 19 /8s, 72 /16s and 218 /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: 16029
Total LACNIC prefixes after maximum aggregation: 4349
LACNIC Deaggregation factor: 3.69
Prefixes being announced from the LACNIC address blocks: 14084
Unique aggregates announced from the LACNIC address blocks: 7807
LACNIC Region origin ASes present in the Internet Routing Table: 834
LACNIC Prefixes per ASN: 16.89
LACNIC Region origin ASes announcing only one prefix: 271
LACNIC Region transit ASes present in the Internet Routing Table: 140
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41409536
Equivalent to 2 /8s, 119 /16s and 220 /24s
Percentage of available LACNIC address space announced: 61.7
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: 2620
Total AfriNIC prefixes after maximum aggregation: 1032
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 2168
Unique aggregates announced from the AfriNIC address blocks: 1302
AfriNIC Region origin ASes present in the Internet Routing Table: 200
AfriNIC Prefixes per ASN: 10.84
AfriNIC Region origin ASes announcing only one prefix: 63
AfriNIC Region transit ASes present in the Internet Routing Table: 34
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6377984
Equivalent to 0 /8s, 97 /16s and 82 /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 1371 11014 286 CHINANET-BACKBONE
4755 1311 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1123 80 400 Sify Limited
9498 1009 533 70 BHARTI BT INTERNET LTD.
4766 795 4930 315 Korea Telecom (KIX)
23577 787 34 684 Korea Telecom (ATM-MPLS)
17488 743 48 53 Hathway IP Over Cable Interne
7545 698 150 113 TPG Internet Pty Ltd
18101 578 117 41 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 479 768 110 CNCGROUP IP network: China169
9443 471 122 77 Primus Telecommunications
7474 415 218 269 SingTel Optus Pty Ltd
4802 414 108 153 Wantree Development
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 1472 6075 994 AT&T WorldNet Services
4323 1325 1020 370 Time Warner Telecom
2386 1191 598 736 AT&T Data Communications Serv
11492 1116 109 16 Cable One
6478 1107 321 127 AT&T Worldnet Services
6197 1028 717 509 BellSouth Network Solutions,
18566 1018 288 9 Covad Communications
174 964 6776 854 Cogent Communications
701 942 6562 718 UUNET Technologies, Inc.
7011 904 259 545 Citizens Utilities
1239 812 2742 579 Sprint
20115 806 740 431 Charter Communications
19262 768 2765 187 Verizon Global Networks
22773 751 2148 49 Cox Communications, Inc.
209 744 3870 589 Qwest
5668 627 171 23 CenturyTel Internet Holdings,
6517 576 161 37 Yipes Communications, Inc.
855 575 254 73 Canadian Research Network
852 573 1093 364 Telus Advanced Communications
6198 570 613 259 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 361 56 41 LINKdotNET AS number
9116 323 168 26 Goldenlines main autonomous s
3320 313 6035 259 Deutsche Telekom AG
3301 312 1456 292 TeliaNet Sweden
6746 287 130 263 Dynamic Network Technologies,
5089 268 1658 53 NTL Group Limited
680 264 2044 255 DFN-IP service G-WiN
8220 259 445 242 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
1257 194 1195 172 SWIPnet Swedish IP Network
3292 194 1379 174 TDC Tele Danmark
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 894 1958 207 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 318 152 41 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 161 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 227 188 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 13 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 37 21 29 Johnnic e-Ventures
8524 32 2 8 AUCEGYPT Autonomous System
12455 30 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 1311 1240 Videsh Sanchar Nigam Ltd. Aut
11492 1116 1100 Cable One
4134 1371 1085 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 1123 723 Sify Limited
22773 751 702 Cox Communications, Inc.
17488 743 690 Hathway IP Over Cable Interne
8151 894 687 UniNet S.A. de C.V.
5668 627 604 CenturyTel Internet Holdings,
7545 698 585 TPG Internet Pty Ltd
19262 768 581 Verizon Global Networks
6517 576 539 Yipes Communications, Inc.
18101 578 537 Reliance Infocom Ltd Internet
15270 565 528 PaeTec.net -a division of Pae
6197 1028 519 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 575 502 Canadian Research Network
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 /12:130
/13:256 /14:468 /15:903 /16:9567 /17:4023 /18:6555
/19:13838 /20:16083 /21:14664 /22:18992 /23:19907 /24:119387
/25:766 /26:1012 /27:484 /28:76 /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 965 1123 Sify Limited
2386 886 1191 AT&T Data Communications Serv
7018 809 1472 AT&T WorldNet Services
7011 802 904 Citizens Utilities
6197 782 1028 BellSouth Network Solutions,
23577 778 787 Korea Telecom (ATM-MPLS)
4755 702 1311 Videsh Sanchar Nigam Ltd. Aut
9498 678 1009 BHARTI BT INTERNET LTD.
4766 594 795 Korea Telecom (KIX)
17488 566 743 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
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 490 578 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:84 9:1 12:1783 15:19
16:3 17:3 18:12 20:37 24:925 25:1
32:56 33:3 38:343 40:60 41:239 44:2
47:4 52:4 55:3 56:3 57:25 58:468
59:381 60:348 61:998 62:887 63:1991 64:3133
65:2351 66:3316 67:753 68:627 69:1924 70:444
71:102 72:1375 73:2 74:597 75:256 76:86
77:270 78:29 80:831 81:829 82:672 83:372
84:551 85:850 86:339 87:456 88:288 89:951
90:13 91:450 97:6 98:2 116:268 117:90
121:251 122:579 123:139 124:874 125:972 128:292
129:212 130:140 131:362 132:54 133:9 134:194
135:39 136:183 137:81 138:144 139:71 140:491
141:172 142:378 143:236 144:283 145:46 146:325
147:120 148:399 149:143 150:111 151:160 152:90
153:122 154:2 155:257 156:157 157:212 158:158
159:166 160:108 161:95 162:185 163:181 164:470
165:394 166:267 167:294 168:503 169:118 170:407
171:22 172:1 189:70 190:914 192:5757 193:3941
194:3167 195:2250 196:969 198:3807 199:3275 200:5044
201:1152 202:7397 203:7564 204:3947 205:1955 206:2414
207:2800 208:2740 209:3473 210:2418 211:968 212:1290
213:1461 214:415 215:40 216:3980 217:1154 218:353
219:386 220:1013 221:412 222:267
End of report
