Routing Table Report 04:00 +10GMT Thu 27 May, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 321127
Prefixes after maximum aggregation: 148593
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 157278
Total ASes present in the Internet Routing Table: 34082
Prefixes per ASN: 9.42
Origin-only ASes present in the Internet Routing Table: 29590
Origin ASes announcing only one prefix: 14360
Transit ASes present in the Internet Routing Table: 4492
Transit-only ASes present in the Internet Routing Table: 102
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 327
Unregistered ASNs in the Routing Table: 120
Number of 32-bit ASNs allocated by the RIRs: 589
Prefixes from 32-bit ASNs in the Routing Table: 669
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 163
Number of addresses announced to Internet: 2256997184
Equivalent to 134 /8s, 135 /16s and 11 /24s
Percentage of available address space announced: 60.9
Percentage of allocated address space announced: 66.3
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 83.0
Total number of prefixes smaller than registry allocations: 153636
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 76642
Total APNIC prefixes after maximum aggregation: 26795
APNIC Deaggregation factor: 2.86
Prefixes being announced from the APNIC address blocks: 73642
Unique aggregates announced from the APNIC address blocks: 32498
APNIC Region origin ASes present in the Internet Routing Table: 4054
APNIC Prefixes per ASN: 18.17
APNIC Region origin ASes announcing only one prefix: 1113
APNIC Region transit ASes present in the Internet Routing Table: 627
Average APNIC Region AS path length visible: 3.6
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 520272704
Equivalent to 31 /8s, 2 /16s and 187 /24s
Percentage of available APNIC address space announced: 77.5
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 1/8, 14/8, 27/8, 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, 133/8, 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, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 133792
Total ARIN prefixes after maximum aggregation: 69155
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 106685
Unique aggregates announced from the ARIN address blocks: 41572
ARIN Region origin ASes present in the Internet Routing Table: 13702
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5265
ARIN Region transit ASes present in the Internet Routing Table: 1348
Average ARIN Region AS path length visible: 3.4
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731499552
Equivalent to 43 /8s, 153 /16s and 204 /24s
Percentage of available ARIN address space announced: 62.3
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, 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, 50/8, 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, 107/8,
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: 74122
Total RIPE prefixes after maximum aggregation: 43020
RIPE Deaggregation factor: 1.72
Prefixes being announced from the RIPE address blocks: 67077
Unique aggregates announced from the RIPE address blocks: 44088
RIPE Region origin ASes present in the Internet Routing Table: 14491
RIPE Prefixes per ASN: 4.63
RIPE Region origin ASes announcing only one prefix: 7475
RIPE Region transit ASes present in the Internet Routing Table: 2164
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 427331808
Equivalent to 25 /8s, 120 /16s and 144 /24s
Percentage of available RIPE address space announced: 74.9
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, 31/8, 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, 176/8, 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: 28433
Total LACNIC prefixes after maximum aggregation: 6836
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 26853
Unique aggregates announced from the LACNIC address blocks: 14056
LACNIC Region origin ASes present in the Internet Routing Table: 1295
LACNIC Prefixes per ASN: 20.74
LACNIC Region origin ASes announcing only one prefix: 400
LACNIC Region transit ASes present in the Internet Routing Table: 227
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73225728
Equivalent to 4 /8s, 93 /16s and 86 /24s
Percentage of available LACNIC address space announced: 72.7
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: 7239
Total AfriNIC prefixes after maximum aggregation: 1858
AfriNIC Deaggregation factor: 3.90
Prefixes being announced from the AfriNIC address blocks: 5542
Unique aggregates announced from the AfriNIC address blocks: 1671
AfriNIC Region origin ASes present in the Internet Routing Table: 364
AfriNIC Prefixes per ASN: 15.23
AfriNIC Region origin ASes announcing only one prefix: 107
AfriNIC Region transit ASes present in the Internet Routing Table: 82
Average AfriNIC Region AS path length visible: 3.8
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 18447360
Equivalent to 1 /8s, 25 /16s and 124 /24s
Percentage of available AfriNIC address space announced: 55.0
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 1847 8422 483 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1309 293 153 TATA Communications formerly
7545 1278 232 104 TPG Internet Pty Ltd
17974 1062 281 19 PT TELEKOMUNIKASI INDONESIA
9583 994 73 485 Sify Limited
24560 907 306 171 Bharti Airtel Ltd., Telemedia
4134 876 21259 406 CHINANET-BACKBONE
4808 845 1587 214 CNCGROUP IP network: China169
9829 788 680 39 BSNL National Internet Backbo
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 3921 3733 287 bellsouth.net, inc.
4323 3365 1116 404 Time Warner Telecom
1785 1784 699 130 PaeTec Communications, Inc.
7018 1531 5738 976 AT&T WorldNet Services
20115 1525 1498 653 Charter Communications
2386 1284 568 914 AT&T Data Communications Serv
6478 1251 257 98 AT&T Worldnet Services
3356 1185 10883 405 Level 3 Communications, LLC
22773 1156 2604 64 Cox Communications, Inc.
11492 1151 210 285 Cable One
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
35805 627 56 6 United Telecom of Georgia
3292 454 2027 393 TDC Tele Danmark
30890 443 116 207 Evolva Telecom
702 416 1869 330 UUNET - Commercial IP service
8551 402 355 38 Bezeq International
8866 396 117 18 Bulgarian Telecommunication C
3301 366 1414 322 TeliaNet Sweden
3320 365 7072 318 Deutsche Telekom AG
12479 336 576 5 Uni2 Autonomous System
3215 328 3218 100 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 1554 2965 246 UniNet S.A. de C.V.
10620 1044 235 152 TVCABLE BOGOTA
28573 878 722 77 NET Servicos de Comunicao S.A
7303 730 377 107 Telecom Argentina Stet-France
6503 584 173 209 AVANTEL, S.A.
22047 545 310 15 VTR PUNTO NET S.A.
7738 477 922 30 Telecomunicacoes da Bahia S.A
3816 474 204 74 Empresa Nacional de Telecomun
14117 455 30 13 Telefonica del Sur S.A.
11172 442 99 71 Servicios Alestra S.A de C.V
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 1168 445 10 TEDATA
24863 713 147 39 LINKdotNET AS number
36992 637 278 185 Etisalat MISR
3741 270 852 231 The Internet Solution
2018 216 231 112 Tertiary Education Network
33776 213 11 14 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 176 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 133 506 14 Vodacom
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 3921 3733 287 bellsouth.net, inc.
4323 3365 1116 404 Time Warner Telecom
4766 1847 8422 483 Korea Telecom (KIX)
1785 1784 699 130 PaeTec Communications, Inc.
8151 1554 2965 246 UniNet S.A. de C.V.
7018 1531 5738 976 AT&T WorldNet Services
20115 1525 1498 653 Charter Communications
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1309 293 153 TATA Communications formerly
2386 1284 568 914 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
4323 3365 2961 Time Warner Telecom
1785 1784 1654 PaeTec Communications, Inc.
4766 1847 1364 Korea Telecom (KIX)
8151 1554 1308 UniNet S.A. de C.V.
17488 1316 1193 Hathway IP Over Cable Interne
7545 1278 1174 TPG Internet Pty Ltd
8452 1168 1158 TEDATA
4755 1309 1156 TATA Communications formerly
6478 1251 1153 AT&T Worldnet Services
22773 1156 1092 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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 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
31.0.0.0/16 12654 RIPE NCC RIS Project
31.0.0.0/8 237 Merit Network
31.1.0.0/21 12654 RIPE NCC RIS Project
31.1.24.0/24 12654 RIPE NCC RIS Project
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 36990 Alkan Telecom Ltd
41.223.198.0/24 36990 Alkan Telecom Ltd
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 /8:21 /9:10 /10:26 /11:67 /12:194
/13:402 /14:692 /15:1271 /16:11075 /17:5279 /18:8977
/19:18273 /20:22542 /21:22600 /22:29484 /23:29152 /24:168086
/25:951 /26:1228 /27:629 /28:144 /29:9 /30:7
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2513 3921 bellsouth.net, inc.
4323 1849 3365 Time Warner Telecom
4766 1479 1847 Korea Telecom (KIX)
1785 1248 1784 PaeTec Communications, Inc.
11492 1064 1151 Cable One
17488 1063 1316 Hathway IP Over Cable Interne
8452 1049 1168 TEDATA
18566 1040 1059 Covad Communications
10620 960 1044 TVCABLE BOGOTA
7018 922 1531 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:13 8:262 12:2008 13:10 14:1
15:23 16:3 17:8 20:21 24:1432 27:107
31:1 32:47 33:12 38:673 40:98 41:2384
44:3 47:25 52:8 55:6 56:2 57:24
58:729 59:503 60:455 61:1076 62:1066 63:1977
64:3631 65:2352 66:4237 67:1829 68:1110 69:2850
70:714 71:243 72:1818 73:2 74:2087 75:252
76:308 77:867 78:629 79:417 80:1008 81:797
82:478 83:448 84:691 85:1058 86:462 87:701
88:332 89:1557 90:88 91:2775 92:502 93:1112
94:1422 95:596 96:279 97:315 98:566 99:28
108:32 109:489 110:360 111:503 112:263 113:289
114:410 115:576 116:1039 117:648 118:440 119:930
120:144 121:742 122:1431 123:908 124:1083 125:1296
128:210 129:210 130:193 131:560 132:247 133:17
134:194 135:45 136:229 137:171 138:253 139:103
140:481 141:136 142:353 143:385 144:478 145:52
146:428 147:165 148:608 149:288 150:142 151:169
152:261 153:168 154:2 155:325 156:156 157:326
158:107 159:375 160:315 161:185 162:258 163:177
164:409 165:347 166:476 167:396 168:783 169:159
170:705 171:52 172:2 173:761 174:644 175:90
176:1 178:116 180:479 182:65 183:130 184:45
186:390 187:358 188:1341 189:779 190:3665 192:5745
193:4699 194:3357 195:2776 196:1206 198:3562 199:3429
200:5366 201:1507 202:8010 203:8301 204:4062 205:2340
206:2523 207:3036 208:3884 209:3407 210:2503 211:1243
212:1736 213:1670 214:661 215:69 216:4670 217:1531
218:488 219:377 220:1125 221:399 222:316 223:1
End of report