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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 03 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/03/0400
Analysis Summary
----------------
BGP routing table entries examined: 227051
Prefixes after maximum aggregation: 119284
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 110345
Total ASes present in the Internet Routing Table: 25834
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22512
Origin ASes announcing only one prefix: 11005
Transit ASes present in the Internet Routing Table: 3322
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: 5
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: 1742403936
Equivalent to 103 /8s, 218 /16s and 249 /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: 119692
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53250
Total APNIC prefixes after maximum aggregation: 20705
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50187
Unique aggregates announced from the APNIC address blocks: 22048
APNIC Region origin ASes present in the Internet Routing Table: 3022
APNIC Prefixes per ASN: 16.61
APNIC Region origin ASes announcing only one prefix: 813
APNIC Region transit ASes present in the Internet Routing Table: 458
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 305986976
Equivalent to 18 /8s, 60 /16s and 253 /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: 107596
Total ARIN prefixes after maximum aggregation: 62548
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79166
Unique aggregates announced from the ARIN address blocks: 31494
ARIN Region origin ASes present in the Internet Routing Table: 11714
ARIN Prefixes per ASN: 6.76
ARIN Region origin ASes announcing only one prefix: 4531
ARIN Region transit ASes present in the Internet Routing Table: 1067
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 341346816
Equivalent to 20 /8s, 88 /16s and 138 /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: 47702
Total RIPE prefixes after maximum aggregation: 30652
RIPE Deaggregation factor: 1.56
Prefixes being announced from the RIPE address blocks: 44053
Unique aggregates announced from the RIPE address blocks: 29034
RIPE Region origin ASes present in the Internet Routing Table: 9984
RIPE Prefixes per ASN: 4.41
RIPE Region origin ASes announcing only one prefix: 5325
RIPE Region transit ASes present in the Internet Routing Table: 1583
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323441024
Equivalent to 19 /8s, 71 /16s and 81 /24s
Percentage of available RIPE address space announced: 74.1
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: 15875
Total LACNIC prefixes after maximum aggregation: 4337
LACNIC Deaggregation factor: 3.66
Prefixes being announced from the LACNIC address blocks: 13942
Unique aggregates announced from the LACNIC address blocks: 7765
LACNIC Region origin ASes present in the Internet Routing Table: 836
LACNIC Prefixes per ASN: 16.68
LACNIC Region origin ASes announcing only one prefix: 272
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: 41197568
Equivalent to 2 /8s, 116 /16s and 160 /24s
Percentage of available LACNIC address space announced: 61.4
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: 2617
Total AfriNIC prefixes after maximum aggregation: 1032
AfriNIC Deaggregation factor: 2.54
Prefixes being announced from the AfriNIC address blocks: 2159
Unique aggregates announced from the AfriNIC address blocks: 1289
AfriNIC Region origin ASes present in the Internet Routing Table: 200
AfriNIC Prefixes per ASN: 10.79
AfriNIC Region origin ASes announcing only one prefix: 64
AfriNIC Region transit ASes present in the Internet Routing Table: 33
Average AfriNIC Region AS path length visible: 3.7
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 6373376
Equivalent to 0 /8s, 97 /16s and 64 /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 381 71 Videsh Sanchar Nigam Ltd. Aut
9583 1122 80 400 Sify Limited
9498 1009 533 70 BHARTI BT INTERNET LTD.
4766 790 4930 316 Korea Telecom (KIX)
23577 788 34 685 Korea Telecom (ATM-MPLS)
17488 738 48 58 Hathway IP Over Cable Interne
7545 698 146 119 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 483 768 110 CNCGROUP IP network: China169
9443 471 122 77 Primus Telecommunications
7474 415 218 269 SingTel Optus Pty Ltd
4802 413 108 152 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 1468 6074 1003 AT&T WorldNet Services
4323 1324 1020 370 Time Warner Telecom
2386 1194 614 739 AT&T Data Communications Serv
6478 1122 320 145 AT&T Worldnet Services
11492 1115 109 15 Cable One
6197 1028 717 509 BellSouth Network Solutions,
18566 1017 288 9 Covad Communications
174 968 6776 855 Cogent Communications
701 940 6562 718 UUNET Technologies, Inc.
7011 899 258 545 Citizens Utilities
1239 814 2742 580 Sprint
20115 806 740 431 Charter Communications
19262 768 2765 187 Verizon Global Networks
22773 750 2148 49 Cox Communications, Inc.
209 748 3871 593 Qwest
5668 627 171 23 CenturyTel Internet Holdings,
7029 577 488 79 Alltel Information Services,
855 575 254 73 Canadian Research Network
6517 574 159 36 Yipes Communications, Inc.
852 573 1093 364 Telus Advanced Communications
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 260 445 243 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 898 1958 208 UniNet S.A. de C.V.
11830 483 299 9 Instituto Costarricense de El
11172 377 116 63 Servicios Alestra S.A de C.V
16814 361 22 8 NSS, S.A.
14522 333 28 7 SatNet S.A.
7303 318 152 39 Telecom Argentina Stet-France
22047 318 246 13 VTR PUNTO NET S.A.
6471 313 75 32 ENTEL CHILE S.A.
14117 281 19 15 Telefonica del Sur S.A.
11556 229 128 3 Cable-Wireless Panama
6147 225 172 27 Telefonica Del Peru
10620 217 61 19 TVCABLE BOGOTA
6503 208 172 85 AVANTEL, S.A.
23216 196 16 43 RAMtelecom Telecomunicaciones
10481 181 72 8 Prima S.A.
8163 177 11 6 METROTEL REDES S.A.
20299 164 24 22 NEWCOM AMERICAS
7738 159 506 23 Telecomunicacoes da Bahia S.A
7910 159 11 28 ANDINET ON LINE
21826 157 27 60 INTERCABLE
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 283 868 224 The Internet Solution
8452 226 188 7 TEDATA
6713 142 135 11 Itissalat Al-MAGHRIB
2018 138 301 115 Tertiary Education Network
33783 125 8 12 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 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
5713 46 294 36 Telkom SA Ltd
33774 46 29 24 AS Number for Telecom Algeria
16637 37 21 29 Johnnic e-Ventures
33776 37 2 3 Starcomms Nigeria Limited
8524 32 2 8 AUCEGYPT Autonomous System
12455 31 6 3 Jambonet Autonomous system
21280 29 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 1115 1100 Cable One
4134 1371 1085 CHINANET-BACKBONE
18566 1017 1008 Covad Communications
6478 1122 977 AT&T Worldnet Services
4323 1324 954 Time Warner Telecom
9498 1009 939 BHARTI BT INTERNET LTD.
9583 1122 722 Sify Limited
22773 750 701 Cox Communications, Inc.
8151 898 690 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 698 579 TPG Internet Pty Ltd
6517 574 538 Yipes Communications, Inc.
18101 578 537 Reliance Infocom Ltd Internet
15270 564 527 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
/13:255 /14:468 /15:903 /16:9568 /17:4025 /18:6555
/19:13828 /20:16093 /21:14611 /22:18972 /23:19895 /24:119338
/25:757 /26:1011 /27:475 /28:76 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1121 1122 AT&T Worldnet Services
11492 1106 1115 Cable One
18566 999 1017 Covad Communications
9583 964 1122 Sify Limited
2386 888 1194 AT&T Data Communications Serv
7018 802 1468 AT&T WorldNet Services
7011 797 899 Citizens Utilities
6197 782 1028 BellSouth Network Solutions,
23577 779 788 Korea Telecom (ATM-MPLS)
4755 703 1311 Videsh Sanchar Nigam Ltd. Aut
9498 679 1009 BHARTI BT INTERNET LTD.
4766 589 790 Korea Telecom (KIX)
19916 563 568 OLM LLC
17488 561 738 Hathway IP Over Cable Interne
4323 558 1324 Time Warner Telecom
6517 540 574 Yipes Communications, Inc.
15270 529 564 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 12:1808 15:19
16:3 17:3 18:12 20:37 24:920 25:1
32:57 33:3 38:341 40:60 41:226 44:2
47:3 52:4 55:3 56:3 57:25 58:465
59:382 60:347 61:997 62:889 63:1994 64:3135
65:2355 66:3315 67:758 68:625 69:1927 70:445
71:103 72:1341 73:2 74:592 75:256 76:87
77:266 78:24 80:827 81:826 82:671 83:374
84:550 85:854 86:339 87:448 88:279 89:949
90:13 91:443 97:6 98:4 116:269 117:90
121:254 122:578 123:140 124:873 125:971 128:291
129:212 130:140 131:363 132:54 133:9 134:193
135:39 136:187 137:81 138:149 139:71 140:494
141:172 142:378 143:236 144:288 145:45 146:326
147:120 148:405 149:142 150:111 151:160 152:90
153:122 154:2 155:257 156:157 157:212 158:158
159:171 160:107 161:94 162:215 163:182 164:471
165:394 166:286 167:294 168:508 169:120 170:409
171:22 172:1 189:70 190:850 192:5746 193:3938
194:3167 195:2261 196:974 198:3795 199:3280 200:5047
201:1152 202:7377 203:7573 204:3946 205:1954 206:2417
207:2789 208:2740 209:3476 210:2419 211:969 212:1270
213:1459 214:418 215:40 216:3988 217:1163 218:353
219:387 220:1014 221:414 222:267
End of report
