Routing Table Report 00:00 GMT Fri 31 Jul, 2009
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 299653
Prefixes after maximum aggregation: 138972
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 95757
Total ASes present in the Internet Routing Table: 31895
Prefixes per ASN: 9.39
Origin-only ASes present in the Internet Routing Table: 27737
Origin ASes announcing only one prefix: 13493
Transit ASes present in the Internet Routing Table: 4158
Transit-only ASes present in the Internet Routing Table: 102
Average AS path length visible in the Internet Routing Table: 3.7
Max AS path length visible: 24
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 555
Unregistered ASNs in the Routing Table: 170
Number of 32-bit ASNs allocated by the RIRs: 220
Prefixes from 32-bit ASNs in the Routing Table: 80
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 346
Number of addresses announced to Internet: 1142702558
Equivalent to 68 /8s, 28 /16s and 65 /24s
Percentage of available address space announced: 30.8
Percentage of allocated address space announced: 35.7
Percentage of available address space allocated: 86.4
Percentage of address space in use by end-sites: 78.5
Total number of prefixes smaller than registry allocations: 144530
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 70206
Total APNIC prefixes after maximum aggregation: 24533
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 69650
Unique aggregates announced from the APNIC address blocks: 21871
APNIC Region origin ASes present in the Internet Routing Table: 3717
APNIC Prefixes per ASN: 18.74
APNIC Region origin ASes announcing only one prefix: 1021
APNIC Region transit ASes present in the Internet Routing Table: 575
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 236941504
Equivalent to 14 /8s, 31 /16s and 112 /24s
Percentage of available APNIC address space announced: 44.1
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 110/8, 111/8, 112/8,
113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8,
120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8,
180/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8,
219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 126768
Total ARIN prefixes after maximum aggregation: 66706
ARIN Deaggregation factor: 1.90
Prefixes being announced from the ARIN address blocks: 127215
Unique aggregates announced from the ARIN address blocks: 34830
ARIN Region origin ASes present in the Internet Routing Table: 13152
ARIN Prefixes per ASN: 9.67
ARIN Region origin ASes announcing only one prefix: 5063
ARIN Region transit ASes present in the Internet Routing Table: 1294
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 630731925
Equivalent to 37 /8s, 152 /16s and 52 /24s
Percentage of available ARIN address space announced: 55.3
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, 46080-47103
53248-55295
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8,
30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8,
44/8, 45/8, 47/8, 48/8, 52/8, 54/8, 55/8,
56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8,
69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8,
76/8, 96/8, 97/8, 98/8, 99/8, 108/8, 173/8,
174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8,
208/8, 209/8, 214/8, 215/8, 216/8,
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 68802
Total RIPE prefixes after maximum aggregation: 39851
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 68653
Unique aggregates announced from the RIPE address blocks: 22734
RIPE Region origin ASes present in the Internet Routing Table: 13367
RIPE Prefixes per ASN: 5.14
RIPE Region origin ASes announcing only one prefix: 6968
RIPE Region transit ASes present in the Internet Routing Table: 1983
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 181409664
Equivalent to 10 /8s, 208 /16s and 23 /24s
Percentage of available RIPE address space announced: 36.0
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
40960-45055, 47104-52223
RIPE Address Blocks 25/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8,
81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8,
88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8,
95/8, 109/8, 178/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 27254
Total LACNIC prefixes after maximum aggregation: 6111
LACNIC Deaggregation factor: 4.46
Prefixes being announced from the LACNIC address blocks: 27207
Unique aggregates announced from the LACNIC address blocks: 13688
LACNIC Region origin ASes present in the Internet Routing Table: 1152
LACNIC Prefixes per ASN: 23.62
LACNIC Region origin ASes announcing only one prefix: 359
LACNIC Region transit ASes present in the Internet Routing Table: 191
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 72482504
Equivalent to 4 /8s, 81 /16s and 254 /24s
Percentage of available LACNIC address space announced: 72.0
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247
plus ERX transfers
LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 6171
Total AfriNIC prefixes after maximum aggregation: 1482
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6569
Unique aggregates announced from the AfriNIC address blocks: 2388
AfriNIC Region origin ASes present in the Internet Routing Table: 298
AfriNIC Prefixes per ASN: 22.04
AfriNIC Region origin ASes announcing only one prefix: 82
AfriNIC Region transit ASes present in the Internet Routing Table: 59
Average AfriNIC Region AS path length visible: 3.6
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 19588608
Equivalent to 1 /8s, 42 /16s and 230 /24s
Percentage of available AfriNIC address space announced: 58.4
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks 41/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1551 6976 419 Korea Telecom (KIX)
17488 1542 137 109 Hathway IP Over Cable Interne
4755 1224 292 144 Videsh Sanchar Nigam Ltd. Aut
9583 1124 87 550 Sify Limited
4134 927 17389 381 CHINANET-BACKBONE
7545 808 198 102 TPG Internet Pty Ltd
9829 807 619 15 BSNL National Internet Backbo
18101 750 201 32 Reliance Infocom Ltd Internet
24560 729 263 170 Bharti Airtel Ltd.
4808 724 1439 158 CNCGROUP IP network: China169
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4227 3643 323 bellsouth.net, inc.
20115 2123 1465 673 Charter Communications
4323 1901 1048 381 Time Warner Telecom
1785 1717 714 138 AppliedTheory Corporation
7018 1505 10010 1037 AT&T WorldNet Services
2386 1263 653 928 AT&T Data Communications Serv
6478 1255 276 293 AT&T Worldnet Services
3356 1210 10963 443 Level 3 Communications, LLC
11492 1129 208 12 Cable One
22773 1079 2604 66 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 631 1861 348 UUNET - Commercial IP service
30890 483 92 195 Evolva Telecom
3292 469 1905 396 TDC Tele Danmark
12479 469 578 6 Uni2 Autonomous System
3301 375 1684 309 TeliaNet Sweden
9198 360 138 12 Kazakhtelecom Corporate Sales
3320 352 7082 305 Deutsche Telekom AG
3215 344 3081 109 France Telecom Transpac
8997 343 152 8 SPBNIT-RU Autonomous System
8866 337 109 23 Bulgarian Telecommunication C
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7303 2123 317 88 Telecom Argentina Stet-France
8151 1502 2898 247 Uninet S.A. de C.V.
10620 977 219 106 TVCABLE BOGOTA
28573 639 579 41 Types of queries are: POCs, o
22047 539 302 14 Types of queries are: POCs, o
11830 487 309 64 Instituto Costarricense de El
11172 442 99 69 Alestra
7738 426 862 30 Telecomunicacoes da Bahia S.A
6471 421 96 31 ENTEL CHILE S.A.
16735 411 124 11 Companhia de Telecomunicacoes
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1025 188 7 TEDATA
24863 908 90 48 LINKdotNET AS number
20858 324 34 5 EgyNet
3741 277 856 237 The Internet Solution
2018 245 215 143 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
33783 152 10 8 EEPAD TISP TELECOM & INTERNET
29571 139 15 7 Ci Telecom Autonomous system
24835 137 46 9 RAYA Telecom - Egypt
5536 123 8 9 Internet Egypt Network
Complete listing at http://thyme.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4227 3643 323 bellsouth.net, inc.
7303 2123 317 88 Telecom Argentina Stet-France
20115 2123 1465 673 Charter Communications
4323 1901 1048 381 Time Warner Telecom
1785 1717 714 138 AppliedTheory Corporation
4766 1551 6976 419 Korea Telecom (KIX)
17488 1542 137 109 Hathway IP Over Cable Interne
7018 1505 10010 1037 AT&T WorldNet Services
8151 1502 2898 247 Uninet S.A. de C.V.
2386 1263 653 928 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7303 2123 2035 Telecom Argentina Stet-France
1785 1717 1579 AppliedTheory Corporation
4323 1901 1520 Time Warner Telecom
20115 2123 1450 Charter Communications
17488 1542 1433 Hathway IP Over Cable Interne
8151 1502 1255 Uninet S.A. de C.V.
4766 1551 1132 Korea Telecom (KIX)
11492 1129 1117 Cable One
4755 1224 1080 Videsh Sanchar Nigam Ltd. Aut
18566 1062 1052 Covad Communications
Complete listing at http://thyme.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.112.0/22 5713 Telkom SA Ltd
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 22555 Universal Talkware Corporatio
Complete listing at http://thyme.apnic.net/rviews/data-add-IANA
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:10 /10:24 /11:58 /12:172
/13:353 /14:624 /15:1180 /16:10740 /17:4863 /18:8405
/19:17378 /20:20771 /21:20828 /22:27530 /23:26940 /24:156132
/25:605 /26:794 /27:321 /28:349 /29:622 /30:677
/31:4 /32:254
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2743 4227 bellsouth.net, inc.
7303 1613 2123 Telecom Argentina Stet-France
17488 1289 1542 Hathway IP Over Cable Interne
4766 1237 1551 Korea Telecom (KIX)
1785 1188 1717 AppliedTheory Corporation
20115 1139 2123 Charter Communications
11492 1055 1129 Cable One
18566 1043 1062 Covad Communications
9583 977 1124 Sify Limited
4323 961 1901 Time Warner Telecom
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:14 8:213 12:2152 13:7 15:19 16:3
17:5 20:35 24:1180 32:151 34:2 38:586
40:98 41:1727 43:1 44:2 47:22 52:6
55:2 56:2 57:37 58:597 59:650 60:461
61:1081 62:1166 63:2023 64:3718 65:2412 66:3656
67:1677 68:896 69:2740 70:559 71:175 72:1666
73:2 74:1650 75:187 76:343 77:850 78:602
79:360 80:967 81:855 82:617 83:455 84:638
85:1070 86:380 87:674 88:373 89:1499 90:50
91:2447 92:377 93:1087 94:1105 95:1210 96:158
97:245 98:256 99:27 110:168 111:358 112:115
113:146 114:251 115:346 116:1130 117:556 118:338
119:761 120:147 121:787 122:1056 123:684 124:975
125:1373 128:225 129:223 130:128 131:414 132:73
133:10 134:186 135:40 136:225 137:165 138:167
139:94 140:446 141:123 142:384 143:372 144:361
145:48 146:391 147:156 148:516 149:303 150:206
151:193 152:145 153:154 154:2 155:275 156:168
157:302 158:119 159:343 160:289 161:156 162:272
163:165 164:475 165:524 166:466 167:361 168:710
169:176 170:512 171:42 172:10 173:324 174:267
178:1 180:4 186:109 187:174 188:350 189:666
190:3302 192:5842 193:4390 194:3427 195:2833 196:1121
198:3653 199:3369 200:5469 201:1419 202:7897 203:8288
204:3899 205:2263 206:2456 207:2743 208:3911 209:3468
210:2537 211:1136 212:1694 213:1698 214:79 215:29
216:4611 217:1367 218:410 219:482 220:1107 221:477
222:329
End of report