Routing Table Report 00:00 GMT Thu 24 Sep, 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: 306873
Prefixes after maximum aggregation: 140760
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 147986
Total ASes present in the Internet Routing Table: 32290
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 28021
Origin ASes announcing only one prefix: 13660
Transit ASes present in the Internet Routing Table: 4269
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 26
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 485
Unregistered ASNs in the Routing Table: 140
Number of 32-bit ASNs allocated by the RIRs: 278
Prefixes from 32-bit ASNs in the Routing Table: 135
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 229
Number of addresses announced to Internet: 2108684818
Equivalent to 125 /8s, 175 /16s and 250 /24s
Percentage of available address space announced: 56.9
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 79.0
Total number of prefixes smaller than registry allocations: 149090
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 72754
Total APNIC prefixes after maximum aggregation: 25281
APNIC Deaggregation factor: 2.88
Prefixes being announced from the APNIC address blocks: 69023
Unique aggregates announced from the APNIC address blocks: 30231
APNIC Region origin ASes present in the Internet Routing Table: 3800
APNIC Prefixes per ASN: 18.16
APNIC Region origin ASes announcing only one prefix: 1048
APNIC Region transit ASes present in the Internet Routing Table: 591
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 460529664
Equivalent to 27 /8s, 115 /16s and 32 /24s
Percentage of available APNIC address space announced: 78.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
55296-56319, 131072-132095
APNIC Address Blocks 43/8, 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, 175/8, 180/8, 182/8, 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: 128832
Total ARIN prefixes after maximum aggregation: 67074
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 102784
Unique aggregates announced from the ARIN address blocks: 38386
ARIN Region origin ASes present in the Internet Routing Table: 13279
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5136
ARIN Region transit ASes present in the Internet Routing Table: 1321
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 706218117
Equivalent to 42 /8s, 24 /16s and 8 /24s
Percentage of available ARIN address space announced: 61.9
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, 393216-394239
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: 70773
Total RIPE prefixes after maximum aggregation: 40327
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 64479
Unique aggregates announced from the RIPE address blocks: 41675
RIPE Region origin ASes present in the Internet Routing Table: 13512
RIPE Prefixes per ASN: 4.77
RIPE Region origin ASes announcing only one prefix: 7009
RIPE Region transit ASes present in the Internet Routing Table: 2038
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 399788336
Equivalent to 23 /8s, 212 /16s and 73 /24s
Percentage of available RIPE address space announced: 74.5
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, 196608-197631
RIPE Address Blocks 2/8, 25/8, 46/8, 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: 28265
Total LACNIC prefixes after maximum aggregation: 6264
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 26547
Unique aggregates announced from the LACNIC address blocks: 13214
LACNIC Region origin ASes present in the Internet Routing Table: 1186
LACNIC Prefixes per ASN: 22.38
LACNIC Region origin ASes announcing only one prefix: 375
LACNIC Region transit ASes present in the Internet Routing Table: 193
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 66549512
Equivalent to 3 /8s, 247 /16s and 119 /24s
Percentage of available LACNIC address space announced: 66.1
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 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: 5862
Total AfriNIC prefixes after maximum aggregation: 1545
AfriNIC Deaggregation factor: 3.79
Prefixes being announced from the AfriNIC address blocks: 4227
Unique aggregates announced from the AfriNIC address blocks: 1514
AfriNIC Region origin ASes present in the Internet Routing Table: 316
AfriNIC Prefixes per ASN: 13.38
AfriNIC Region origin ASes announcing only one prefix: 92
AfriNIC Region transit ASes present in the Internet Routing Table: 67
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 12365824
Equivalent to 0 /8s, 188 /16s and 176 /24s
Percentage of available AfriNIC address space announced: 36.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & 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 1590 6995 447 Korea Telecom (KIX)
17488 1512 136 104 Hathway IP Over Cable Interne
4755 1266 292 143 Videsh Sanchar Nigam Ltd. Aut
9583 1110 87 534 Sify Limited
18101 977 204 34 Reliance Infocom Ltd Internet
4134 951 18168 391 CHINANET-BACKBONE
23577 888 33 742 KRNIC
7545 840 198 99 TPG Internet Pty Ltd
9829 811 625 18 BSNL National Internet Backbo
4808 774 1458 173 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 4169 3627 313 bellsouth.net, inc.
4323 3696 1045 385 Time Warner Telecom
20115 1985 1480 661 Charter Communications
1785 1747 714 138 AppliedTheory Corporation
7018 1494 9962 1045 AT&T WorldNet Services
6478 1430 285 257 AT&T Worldnet Services
2386 1327 644 960 AT&T Data Communications Serv
3356 1236 10932 439 Level 3 Communications, LLC
11492 1125 208 12 Cable One
22773 1106 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
702 622 1823 346 UUNET - Commercial IP service
9116 506 296 30 Goldenlines main autonomous s
30890 493 93 202 Evolva Telecom
3292 446 1900 393 TDC Tele Danmark
12479 426 578 6 Uni2 Autonomous System
35805 423 40 5 United Telecom AS
3301 380 1412 308 TeliaNet Sweden
9198 374 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 354 7068 304 Deutsche Telekom AG
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 2316 338 92 Telecom Argentina Stet-France
8151 1478 2899 244 Uninet S.A. de C.V.
10620 1015 227 95 TVCABLE BOGOTA
28573 720 622 66 Types of queries are: POCs, o
22047 540 302 14 Types of queries are: POCs, o
11830 476 310 61 Instituto Costarricense de El
4230 467 1024 33 Embratel
7738 447 866 31 Telecomunicacoes da Bahia S.A
11172 441 99 71 Alestra
16735 429 124 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 980 188 7 TEDATA
24863 938 97 62 LINKdotNET AS number
3741 272 856 234 The Internet Solution
2018 197 187 116 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 123 46 9 RAYA Telecom - Egypt
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
5713 118 520 69 Telkom SA Ltd
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 4169 3627 313 bellsouth.net, inc.
4323 3696 1045 385 Time Warner Telecom
7303 2316 338 92 Telecom Argentina Stet-France
20115 1985 1480 661 Charter Communications
1785 1747 714 138 AppliedTheory Corporation
4766 1590 6995 447 Korea Telecom (KIX)
17488 1512 136 104 Hathway IP Over Cable Interne
7018 1494 9962 1045 AT&T WorldNet Services
8151 1478 2899 244 Uninet S.A. de C.V.
6478 1430 285 257 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3696 3311 Time Warner Telecom
7303 2316 2224 Telecom Argentina Stet-France
1785 1747 1609 AppliedTheory Corporation
17488 1512 1408 Hathway IP Over Cable Interne
20115 1985 1324 Charter Communications
8151 1478 1234 Uninet S.A. de C.V.
6478 1430 1173 AT&T Worldnet Services
4766 1590 1143 Korea Telecom (KIX)
4755 1266 1123 Videsh Sanchar Nigam Ltd. Aut
11492 1125 1113 Cable One
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
2.0.0.0/16 12654 RIPE NCC RIS Project
2.1.0.0/21 12654 RIPE NCC RIS Project
2.1.24.0/24 12654 RIPE NCC RIS Project
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
46.0.0.0/16 12654 RIPE NCC RIS Project
46.1.0.0/21 12654 RIPE NCC RIS Project
46.1.24.0/24 12654 RIPE NCC RIS Project
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:22 /9:10 /10:24 /11:63 /12:179
/13:357 /14:629 /15:1206 /16:10701 /17:4930 /18:8507
/19:17712 /20:21199 /21:21336 /22:28317 /23:27415 /24:159478
/25:839 /26:1018 /27:503 /28:476 /29:751 /30:878
/31:3 /32:320
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2700 4169 bellsouth.net, inc.
4323 2359 3696 Time Warner Telecom
7303 1797 2316 Telecom Argentina Stet-France
17488 1266 1512 Hathway IP Over Cable Interne
4766 1264 1590 Korea Telecom (KIX)
1785 1214 1747 AppliedTheory Corporation
11492 1053 1125 Cable One
18566 1043 1062 Covad Communications
20115 995 1985 Charter Communications
9583 962 1110 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:227 12:2164 13:7 15:22
16:3 17:5 20:36 24:1200 32:151 34:2
38:603 40:97 41:1689 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:38 58:613
59:638 60:461 61:1079 62:1085 63:2031 64:3749
65:2401 66:4147 67:1777 68:975 69:2772 70:569
71:167 72:1674 73:2 74:1956 75:182 76:320
77:880 78:615 79:395 80:930 81:807 82:551
83:443 84:537 85:1037 86:396 87:689 88:398
89:1516 90:58 91:2575 92:403 93:1243 94:1214
95:1106 96:167 97:266 98:297 99:30 109:39
110:204 111:439 112:137 113:153 114:261 115:342
116:1131 117:567 118:324 119:778 120:129 121:784
122:1286 123:769 124:1050 125:1349 128:223 129:217
130:174 131:422 132:75 133:10 134:174 135:42
136:241 137:164 138:176 139:96 140:439 141:121
142:383 143:339 144:348 145:49 146:390 147:171
148:549 149:294 150:209 151:183 152:216 153:162
154:2 155:269 156:165 157:308 158:113 159:354
160:291 161:164 162:271 163:166 164:280 165:522
166:474 167:373 168:792 169:166 170:503 171:44
172:2 173:418 174:335 175:1 178:1 180:26
182:1 186:153 187:194 188:1010 189:692 190:3428
192:5812 193:4418 194:3409 195:2902 196:1137 198:3567
199:3352 200:5535 201:1459 202:8020 203:8284 204:3935
205:2309 206:2454 207:2992 208:3962 209:3498 210:2562
211:1154 212:1665 213:1700 214:189 215:40 216:4445
217:1322 218:418 219:477 220:1130 221:443 222:321
End of report