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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Thu 09 Aug, 2007
Report Website: http://thyme.apnic.net
This report: http://thyme.apnic.net/ap-data/2007/08/09/0400
Analysis Summary
----------------
BGP routing table entries examined: 227591
Prefixes after maximum aggregation: 119607
Deaggregation factor: 1.90
Unique aggregates announced to Internet: 110710
Total ASes present in the Internet Routing Table: 25894
Prefixes per ASN: 8.79
Origin-only ASes present in the Internet Routing Table: 22569
Origin ASes announcing only one prefix: 11022
Transit ASes present in the Internet Routing Table: 3325
Transit-only ASes present in the Internet Routing Table: 74
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: 7
Unregistered ASNs in the Routing Table: 3
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: 1748691168
Equivalent to 104 /8s, 58 /16s and 232 /24s
Percentage of available address space announced: 47.2
Percentage of allocated address space announced: 61.8
Percentage of available address space allocated: 76.4
Total number of prefixes smaller than registry allocations: 120147
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 53271
Total APNIC prefixes after maximum aggregation: 20732
APNIC Deaggregation factor: 2.57
Prefixes being announced from the APNIC address blocks: 50212
Unique aggregates announced from the APNIC address blocks: 22079
APNIC Region origin ASes present in the Internet Routing Table: 3028
APNIC Prefixes per ASN: 16.58
APNIC Region origin ASes announcing only one prefix: 820
APNIC Region transit ASes present in the Internet Routing Table: 462
Average APNIC Region AS path length visible: 3.7
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 311026848
Equivalent to 18 /8s, 137 /16s and 228 /24s
Percentage of available APNIC address space announced: 77.0
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: 107611
Total ARIN prefixes after maximum aggregation: 62522
ARIN Deaggregation factor: 1.72
Prefixes being announced from the ARIN address blocks: 79221
Unique aggregates announced from the ARIN address blocks: 31622
ARIN Region origin ASes present in the Internet Routing Table: 11729
ARIN Prefixes per ASN: 6.75
ARIN Region origin ASes announcing only one prefix: 4523
ARIN Region transit ASes present in the Internet Routing Table: 1069
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 15
Number of ARIN addresses announced to Internet: 341555712
Equivalent to 20 /8s, 91 /16s and 186 /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: 47952
Total RIPE prefixes after maximum aggregation: 30946
RIPE Deaggregation factor: 1.55
Prefixes being announced from the RIPE address blocks: 44299
Unique aggregates announced from the RIPE address blocks: 29124
RIPE Region origin ASes present in the Internet Routing Table: 10021
RIPE Prefixes per ASN: 4.42
RIPE Region origin ASes announcing only one prefix: 5343
RIPE Region transit ASes present in the Internet Routing Table: 1590
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 323630720
Equivalent to 19 /8s, 74 /16s and 54 /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: 16122
Total LACNIC prefixes after maximum aggregation: 4366
LACNIC Deaggregation factor: 3.69
Prefixes being announced from the LACNIC address blocks: 14165
Unique aggregates announced from the LACNIC address blocks: 7838
LACNIC Region origin ASes present in the Internet Routing Table: 840
LACNIC Prefixes per ASN: 16.86
LACNIC Region origin ASes announcing only one prefix: 271
LACNIC Region transit ASes present in the Internet Routing Table: 142
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 41684736
Equivalent to 2 /8s, 124 /16s and 15 /24s
Percentage of available LACNIC address space announced: 62.1
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: 2625
Total AfriNIC prefixes after maximum aggregation: 1031
AfriNIC Deaggregation factor: 2.55
Prefixes being announced from the AfriNIC address blocks: 2166
Unique aggregates announced from the AfriNIC address blocks: 1307
AfriNIC Region origin ASes present in the Internet Routing Table: 201
AfriNIC Prefixes per ASN: 10.78
AfriNIC Region origin ASes announcing only one prefix: 65
AfriNIC Region transit ASes present in the Internet Routing Table: 31
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 6310400
Equivalent to 0 /8s, 96 /16s and 74 /24s
Percentage of available AfriNIC address space announced: 18.8
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 1328 11126 287 CHINANET-BACKBONE
4755 1313 382 71 Videsh Sanchar Nigam Ltd. Aut
9583 1121 80 400 Sify Limited
9498 1008 532 67 BHARTI BT INTERNET LTD.
4766 801 5442 316 Korea Telecom (KIX)
23577 789 34 685 Korea Telecom (ATM-MPLS)
17488 742 48 59 Hathway IP Over Cable Interne
7545 694 150 112 TPG Internet Pty Ltd
18101 578 117 39 Reliance Infocom Ltd Internet
1221 547 1951 425 Telstra Pty Ltd
4812 529 915 95 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 399 217 272 SingTel Optus Pty Ltd
9829 363 258 15 BSNL National Internet Backbo
17974 362 130 13 PT TELEKOMUNIKASI INDONESIA
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 1475 6075 996 AT&T WorldNet Services
4323 1326 1020 370 Time Warner Telecom
2386 1197 614 740 AT&T Data Communications Serv
11492 1114 109 19 Cable One
6478 1112 321 130 AT&T Worldnet Services
6197 1028 717 509 BellSouth Network Solutions,
18566 1018 288 9 Covad Communications
174 964 6776 854 Cogent Communications
701 943 6562 719 UUNET Technologies, Inc.
7011 906 259 545 Citizens Utilities
20115 807 742 431 Charter Communications
1239 805 2741 572 Sprint
19262 765 2717 184 Verizon Global Networks
22773 751 2148 49 Cox Communications, Inc.
209 745 3869 590 Qwest
5668 630 171 23 CenturyTel Internet Holdings,
6517 583 161 37 Yipes Communications, Inc.
855 576 254 73 Canadian Research Network
852 573 1093 364 Telus Advanced Communications
6198 568 597 258 BellSouth Network Solutions,
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
2119 509 918 381 Telenor Internet Access
702 503 1922 404 UUNET - Commercial IP service
24863 362 57 41 LINKdotNET AS number
9116 351 168 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
680 265 2060 256 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.
8551 231 228 27 Bezeq International
3352 224 1864 41 Ibernet, Internet Access Netw
3269 221 2775 73 TELECOM ITALIA
9121 210 1441 24 TTnet Autonomous System
3292 195 1379 175 TDC Tele Danmark
1257 194 1195 172 SWIPnet Swedish IP Network
12479 193 578 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 916 1958 206 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 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 226 176 27 Telefonica Del Peru
10620 218 61 20 TVCABLE BOGOTA
6503 203 172 85 AVANTEL, S.A.
23216 195 16 43 RAMtelecom Telecomunicaciones
8163 177 11 6 METROTEL REDES S.A.
20299 164 24 22 NEWCOM AMERICAS
19169 162 10 24 Telconet
21826 161 28 60 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 139 301 115 Tertiary Education Network
33783 126 8 11 EEPAD TISP TELECOM & INTERNET
5536 124 8 10 Internet Egypt Network
24835 87 48 6 RAYA Telecom - Egypt
15475 76 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 31 2 10 AUCEGYPT Autonomous System
21280 28 4 4 Swift Global Kenya Ltd.Is an
10798 24 2 15 Standard Bank of South Africa
12455 24 6 3 Jambonet Autonomous system
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4755 1313 1242 Videsh Sanchar Nigam Ltd. Aut
11492 1114 1095 Cable One
4134 1328 1041 CHINANET-BACKBONE
18566 1018 1009 Covad Communications
6478 1112 982 AT&T Worldnet Services
4323 1326 956 Time Warner Telecom
9498 1008 941 BHARTI BT INTERNET LTD.
9583 1121 721 Sify Limited
8151 916 710 UniNet S.A. de C.V.
22773 751 702 Cox Communications, Inc.
17488 742 683 Hathway IP Over Cable Interne
5668 630 607 CenturyTel Internet Holdings,
7545 694 582 TPG Internet Pty Ltd
19262 765 581 Verizon Global Networks
6517 583 546 Yipes Communications, Inc.
18101 578 539 Reliance Infocom Ltd Internet
15270 565 528 PaeTec.net -a division of Pae
6197 1028 519 BellSouth Network Solutions,
19916 568 517 OLM LLC
855 576 503 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
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 /11:37 /12:133
/13:258 /14:471 /15:906 /16:9569 /17:4044 /18:6532
/19:13829 /20:16100 /21:14662 /22:19017 /23:19930 /24:119695
/25:769 /26:1016 /27:489 /28:79 /29:5 /30:0
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6478 1111 1112 AT&T Worldnet Services
11492 1105 1114 Cable One
18566 1000 1018 Covad Communications
9583 963 1121 Sify Limited
2386 891 1197 AT&T Data Communications Serv
7018 812 1475 AT&T WorldNet Services
7011 804 906 Citizens Utilities
6197 782 1028 BellSouth Network Solutions,
23577 780 789 Korea Telecom (ATM-MPLS)
4755 704 1313 Videsh Sanchar Nigam Ltd. Aut
9498 678 1008 BHARTI BT INTERNET LTD.
4766 595 801 Korea Telecom (KIX)
17488 565 742 Hathway IP Over Cable Interne
19916 563 568 OLM LLC
4323 557 1326 Time Warner Telecom
6517 548 583 Yipes Communications, Inc.
15270 530 565 PaeTec.net -a division of Pae
4668 502 512 LG-EDS Systems Inc.
5668 495 630 CenturyTel Internet Holdings,
18101 492 578 Reliance Infocom Ltd Internet
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:8 7:1 8:85 12:1796 15:19 16:3
17:3 18:12 20:37 24:928 25:1 32:57
33:3 38:344 40:60 41:244 44:2 47:4
52:4 55:3 56:3 57:25 58:469 59:384
60:343 61:997 62:942 63:1987 64:3145 65:2340
66:3313 67:758 68:627 69:1926 70:445 71:103
72:1375 73:2 74:613 75:251 76:92 77:276
78:32 80:834 81:825 82:664 83:371 84:603
85:847 86:338 87:450 88:276 89:957 90:23
91:457 97:6 116:270 117:118 121:253 122:580
123:149 124:841 125:975 128:292 129:212 130:140
131:362 132:55 133:9 134:199 135:34 136:189
137:80 138:149 139:71 140:496 141:172 142:379
143:243 144:288 145:46 146:325 147:120 148:406
149:142 150:117 151:159 152:90 153:122 154:3
155:257 156:156 157:211 158:158 159:164 160:108
161:95 162:185 163:180 164:469 165:394 166:266
167:295 168:507 169:121 170:411 171:22 172:1
189:71 190:927 192:5750 193:3958 194:3174 195:2272
196:967 198:3811 199:3274 200:5054 201:1148 202:7385
203:7581 204:3946 205:1962 206:2417 207:2800 208:2750
209:3477 210:2428 211:971 212:1299 213:1458 214:417
215:40 216:3971 217:1157 218:350 219:386 220:1017
221:411 222:267
End of report
