Routing Table Report 04:00 +10GMT Mon 14 Sep, 2009
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 295564
Prefixes after maximum aggregation: 139491
Deaggregation factor: 2.12
Unique aggregates announced to Internet: 147690
Total ASes present in the Internet Routing Table: 32147
Prefixes per ASN: 9.19
Origin-only ASes present in the Internet Routing Table: 27936
Origin ASes announcing only one prefix: 13645
Transit ASes present in the Internet Routing Table: 4211
Transit-only ASes present in the Internet Routing Table: 100
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 423
Unregistered ASNs in the Routing Table: 114
Number of 32-bit ASNs allocated by the RIRs: 269
Prefixes from 32-bit ASNs in the Routing Table: 122
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 218
Number of addresses announced to Internet: 2104410304
Equivalent to 125 /8s, 110 /16s and 192 /24s
Percentage of available address space announced: 56.8
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.8
Total number of prefixes smaller than registry allocations: 141415
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 70865
Total APNIC prefixes after maximum aggregation: 24970
APNIC Deaggregation factor: 2.84
Prefixes being announced from the APNIC address blocks: 67352
Unique aggregates announced from the APNIC address blocks: 30443
APNIC Region origin ASes present in the Internet Routing Table: 3784
APNIC Prefixes per ASN: 17.80
APNIC Region origin ASes announcing only one prefix: 1038
APNIC Region transit ASes present in the Internet Routing Table: 583
Average APNIC Region AS path length visible: 3.5
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 458024288
Equivalent to 27 /8s, 76 /16s and 229 /24s
Percentage of available APNIC address space announced: 78.0
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: 124856
Total ARIN prefixes after maximum aggregation: 66505
ARIN Deaggregation factor: 1.88
Prefixes being announced from the ARIN address blocks: 99403
Unique aggregates announced from the ARIN address blocks: 38336
ARIN Region origin ASes present in the Internet Routing Table: 13221
ARIN Prefixes per ASN: 7.52
ARIN Region origin ASes announcing only one prefix: 5115
ARIN Region transit ASes present in the Internet Routing Table: 1298
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN addresses announced to Internet: 707382016
Equivalent to 42 /8s, 41 /16s and 203 /24s
Percentage of available ARIN address space announced: 62.0
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: 68076
Total RIPE prefixes after maximum aggregation: 39979
RIPE Deaggregation factor: 1.70
Prefixes being announced from the RIPE address blocks: 61949
Unique aggregates announced from the RIPE address blocks: 41362
RIPE Region origin ASes present in the Internet Routing Table: 13450
RIPE Prefixes per ASN: 4.61
RIPE Region origin ASes announcing only one prefix: 7017
RIPE Region transit ASes present in the Internet Routing Table: 2029
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 397748800
Equivalent to 23 /8s, 181 /16s and 42 /24s
Percentage of available RIPE address space announced: 79.0
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, 196608-197631
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: 25278
Total LACNIC prefixes after maximum aggregation: 6208
LACNIC Deaggregation factor: 4.07
Prefixes being announced from the LACNIC address blocks: 23612
Unique aggregates announced from the LACNIC address blocks: 13205
LACNIC Region origin ASes present in the Internet Routing Table: 1178
LACNIC Prefixes per ASN: 20.04
LACNIC Region origin ASes announcing only one prefix: 381
LACNIC Region transit ASes present in the Internet Routing Table: 191
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 21
Number of LACNIC addresses announced to Internet: 66371584
Equivalent to 3 /8s, 244 /16s and 192 /24s
Percentage of available LACNIC address space announced: 65.9
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: 6130
Total AfriNIC prefixes after maximum aggregation: 1571
AfriNIC Deaggregation factor: 3.90
Prefixes being announced from the AfriNIC address blocks: 4466
Unique aggregates announced from the AfriNIC address blocks: 1513
AfriNIC Region origin ASes present in the Internet Routing Table: 320
AfriNIC Prefixes per ASN: 13.96
AfriNIC Region origin ASes announcing only one prefix: 94
AfriNIC Region transit ASes present in the Internet Routing Table: 67
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 12299520
Equivalent to 0 /8s, 187 /16s and 173 /24s
Percentage of available AfriNIC address space announced: 36.7
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 1729 6982 427 Korea Telecom (KIX)
17488 1544 137 103 Hathway IP Over Cable Interne
4755 1258 292 142 TATA Communications formerly
9583 1097 87 533 Sify Limited
4134 1006 18167 389 CHINANET-BACKBONE
18101 959 201 32 Reliance Infocom Ltd Internet
7545 841 198 98 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
4808 766 1534 183 CNCGROUP IP network: China169
23577 763 33 648 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4171 3626 313 bellsouth.net, inc.
4323 1926 1049 389 Time Warner Telecom
1785 1740 714 138 PaeTec Communications, Inc.
7018 1493 5892 1059 AT&T WorldNet Services
20115 1481 1477 674 Charter Communications
6478 1405 282 249 AT&T Worldnet Services
2386 1292 654 940 AT&T Data Communications Serv
3356 1226 10980 439 Level 3 Communications, LLC
11492 1120 208 12 Cable One
22773 1099 2604 66 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
30890 489 92 199 Evolva Telecom
3292 448 1901 395 TDC Tele Danmark
12479 427 578 6 Uni2 Autonomous System
702 421 1821 339 UUNET - Commercial IP service
35805 386 40 5 United Telecom of Georgia
9198 375 138 12 Kazakhtelecom Data Network Ad
8866 358 110 23 Bulgarian Telecommunication C
3320 354 7067 303 Deutsche Telekom AG
3301 350 1412 309 TeliaNet Sweden
3215 347 3121 111 France Telecom Transpac
Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1494 2899 244 UniNet S.A. de C.V.
10620 1013 226 97 TVCABLE BOGOTA
28573 705 620 61 NET Servicos de Comunicao S.A
7303 635 337 91 Telecom Argentina Stet-France
22047 542 302 14 VTR PUNTO NET S.A.
11830 476 310 58 Instituto Costarricense de El
11172 439 99 70 Servicios Alestra S.A de C.V
7738 424 858 29 Telecomunicacoes da Bahia S.A
6471 421 96 31 ENTEL CHILE S.A.
14117 418 29 11 Telefonica del Sur S.A.
Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 992 188 7 TEDATA
24863 947 96 57 LINKdotNET AS number
20858 296 34 6 EgyNet
3741 275 856 236 The Internet Solution
2018 207 180 142 Tertiary Education Network
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
Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 4171 3626 313 bellsouth.net, inc.
4323 1926 1049 389 Time Warner Telecom
1785 1740 714 138 PaeTec Communications, Inc.
4766 1729 6982 427 Korea Telecom (KIX)
17488 1544 137 103 Hathway IP Over Cable Interne
8151 1494 2899 244 UniNet S.A. de C.V.
7018 1493 5892 1059 AT&T WorldNet Services
20115 1481 1477 674 Charter Communications
6478 1405 282 249 AT&T Worldnet Services
2386 1292 654 940 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
1785 1740 1602 PaeTec Communications, Inc.
4323 1926 1537 Time Warner Telecom
17488 1544 1441 Hathway IP Over Cable Interne
4766 1729 1302 Korea Telecom (KIX)
8151 1494 1250 UniNet S.A. de C.V.
6478 1405 1156 AT&T Worldnet Services
4755 1258 1116 TATA Communications formerly
11492 1120 1108 Cable One
18566 1062 1052 Covad Communications
22773 1099 1033 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/current/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/current/data-badAS
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
43.245.96.0/20 7502 Internetwork Kyoto
43.245.112.0/20 7502 Internetwork Kyoto
43.245.192.0/20 7502 Internetwork Kyoto
43.245.208.0/20 7502 Internetwork Kyoto
43.245.224.0/20 7502 Internetwork Kyoto
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
Complete listing at http://thyme.apnic.net/current/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 /10:25 /11:62 /12:174
/13:350 /14:627 /15:1193 /16:10662 /17:4826 /18:8397
/19:17416 /20:20799 /21:20605 /22:26709 /23:26539 /24:154416
/25:934 /26:1058 /27:565 /28:153 /29:8 /30:9
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2703 4171 bellsouth.net, inc.
4766 1408 1729 Korea Telecom (KIX)
17488 1293 1544 Hathway IP Over Cable Interne
1785 1206 1740 PaeTec Communications, Inc.
11492 1047 1120 Cable One
18566 1043 1062 Covad Communications
4323 971 1926 Time Warner Telecom
9583 949 1097 Sify Limited
10620 919 1013 TVCABLE BOGOTA
8452 914 992 TEDATA
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:214 12:2142 13:7 15:21 16:3
17:5 20:36 24:1129 32:52 34:2 38:599
40:97 41:1712 43:1 44:2 47:24 52:6
55:2 56:2 57:25 58:606 59:644 60:460
61:1070 62:1086 63:2012 64:3625 65:2395 66:3398
67:1759 68:964 69:2746 70:568 71:156 72:1684
73:2 74:1733 75:179 76:321 77:872 78:586
79:378 80:920 81:807 82:526 83:435 84:640
85:1030 86:382 87:681 88:383 89:1469 90:49
91:2540 92:399 93:1151 94:1171 95:1094 96:167
97:267 98:262 99:30 109:3 110:192 111:435
112:131 113:154 114:245 115:330 116:1135 117:572
118:328 119:775 120:122 121:767 122:1262 123:764
124:1060 125:1356 128:221 129:214 130:129 131:421
132:75 133:10 134:173 135:42 136:223 137:162
138:172 139:84 140:432 141:125 142:382 143:349
144:377 145:49 146:389 147:163 148:532 149:211
150:207 151:188 152:212 153:155 154:2 155:276
156:168 157:306 158:112 159:350 160:291 161:165
162:267 163:164 164:276 165:521 166:474 167:368
168:709 169:168 170:473 171:42 172:2 173:408
174:310 175:1 178:1 180:22 182:1 186:146
187:147 188:961 189:604 190:3013 192:5770 193:4249
194:3283 195:2757 196:1139 198:3555 199:3349 200:5174
201:1247 202:7836 203:8275 204:3892 205:2195 206:2390
207:2721 208:3943 209:3371 210:2556 211:1108 212:1602
213:1652 214:170 215:33 216:4283 217:1318 218:411
219:447 220:1110 221:441 222:322
End of report