Routing Table Report 08:00 +10GMT Fri 09 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 320872
Prefixes after maximum aggregation: 147894
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 158776
Total ASes present in the Internet Routing Table: 34176
Prefixes per ASN: 9.39
Origin-only ASes present in the Internet Routing Table: 29641
Origin ASes announcing only one prefix: 14440
Transit ASes present in the Internet Routing Table: 4535
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 27
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 312
Unregistered ASNs in the Routing Table: 111
Number of 32-bit ASNs allocated by the RIRs: 666
Prefixes from 32-bit ASNs in the Routing Table: 810
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2540514560
Equivalent to 151 /8s, 109 /16s and 45 /24s
Percentage of available address space announced: 68.5
Percentage of allocated address space announced: 73.9
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 83.6
Total number of prefixes smaller than registry allocations: 151264
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75282
Total APNIC prefixes after maximum aggregation: 25984
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72912
Unique aggregates announced from the APNIC address blocks: 33234
APNIC Region origin ASes present in the Internet Routing Table: 4058
APNIC Prefixes per ASN: 17.97
APNIC Region origin ASes announcing only one prefix: 1149
APNIC Region transit ASes present in the Internet Routing Table: 626
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 526355968
Equivalent to 31 /8s, 95 /16s and 142 /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 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: 133090
Total ARIN prefixes after maximum aggregation: 68818
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 106415
Unique aggregates announced from the ARIN address blocks: 41858
ARIN Region origin ASes present in the Internet Routing Table: 13709
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5283
ARIN Region transit ASes present in the Internet Routing Table: 1346
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 730702592
Equivalent to 43 /8s, 141 /16s and 163 /24s
Percentage of available ARIN address space announced: 62.2
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: 75188
Total RIPE prefixes after maximum aggregation: 43276
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 68257
Unique aggregates announced from the RIPE address blocks: 44430
RIPE Region origin ASes present in the Internet Routing Table: 14563
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 7490
RIPE Region transit ASes present in the Internet Routing Table: 2204
Average RIPE Region AS path length visible: 3.3
Max RIPE Region AS path length visible: 27
Number of RIPE addresses announced to Internet: 433525248
Equivalent to 25 /8s, 215 /16s and 18 /24s
Percentage of available RIPE address space announced: 76.0
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 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: 28555
Total LACNIC prefixes after maximum aggregation: 6868
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 27175
Unique aggregates announced from the LACNIC address blocks: 14466
LACNIC Region origin ASes present in the Internet Routing Table: 1296
LACNIC Prefixes per ASN: 20.97
LACNIC Region origin ASes announcing only one prefix: 404
LACNIC Region transit ASes present in the Internet Routing Table: 221
Average LACNIC Region AS path length visible: 3.9
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 75241472
Equivalent to 4 /8s, 124 /16s and 24 /24s
Percentage of available LACNIC address space announced: 56.1
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7285
Total AfriNIC prefixes after maximum aggregation: 1831
AfriNIC Deaggregation factor: 3.98
Prefixes being announced from the AfriNIC address blocks: 5594
Unique aggregates announced from the AfriNIC address blocks: 1721
AfriNIC Region origin ASes present in the Internet Routing Table: 370
AfriNIC Prefixes per ASN: 15.12
AfriNIC Region origin ASes announcing only one prefix: 114
AfriNIC Region transit ASes present in the Internet Routing Table: 79
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 19598336
Equivalent to 1 /8s, 43 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 58.4
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 1698 8425 488 Korea Telecom (KIX)
7545 1358 232 104 TPG Internet Pty Ltd
17488 1327 144 127 Hathway IP Over Cable Interne
4755 1319 296 157 TATA Communications formerly
17974 1151 285 29 PT TELEKOMUNIKASI INDONESIA
9583 998 74 488 Sify Limited
24560 926 305 168 Bharti Airtel Ltd., Telemedia
4134 847 21420 409 CHINANET-BACKBONE
9829 813 685 32 BSNL National Internet Backbo
4808 760 1476 191 CNCGROUP IP network: China169
Complete listing at http://thyme.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3906 3734 290 bellsouth.net, inc.
4323 2717 1114 394 Time Warner Telecom
19262 1827 4562 274 Verizon Global Networks
1785 1777 698 129 PaeTec Communications, Inc.
20115 1552 1522 655 Charter Communications
7018 1503 5734 954 AT&T WorldNet Services
6478 1283 258 125 AT&T Worldnet Services
2386 1277 552 909 AT&T Data Communications Serv
3356 1175 10877 405 Level 3 Communications, LLC
22773 1166 2859 65 Cox Communications, Inc.
Complete listing at http://thyme.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
35805 650 56 6 United Telecom of Georgia
9116 531 328 32 Goldenlines main autonomous s
3292 453 2027 394 TDC Tele Danmark
30890 442 111 207 Evolva Telecom
702 415 1870 327 UUNET - Commercial IP service
9198 409 202 13 Kazakhtelecom Data Network Ad
8551 402 355 38 Bezeq International
8866 402 117 18 Bulgarian Telecommunication C
3320 373 7329 324 Deutsche Telekom AG
3301 372 1414 327 TeliaNet Sweden
Complete listing at http://thyme.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1438 3000 241 UniNet S.A. de C.V.
10620 1066 238 150 TVCABLE BOGOTA
28573 1028 795 98 NET Servicos de Comunicao S.A
7303 735 389 92 Telecom Argentina Stet-France
6503 671 175 219 AVANTEL, S.A.
22047 548 310 15 VTR PUNTO NET S.A.
3816 496 215 86 Empresa Nacional de Telecomun
7738 477 922 30 Telecomunicacoes da Bahia S.A
14420 468 31 71 ANDINATEL S.A.
11172 450 100 78 Servicios Alestra S.A de C.V
Complete listing at http://thyme.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1163 445 10 TEDATA
24863 723 146 36 LINKdotNET AS number
36992 646 279 185 Etisalat MISR
3741 267 834 229 The Internet Solution
33776 219 12 11 Starcomms Nigeria Limited
2018 207 228 60 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
24835 191 78 10 RAYA Telecom - Egypt
29571 177 19 10 Ci Telecom Autonomous system
16637 167 441 101 MTN Network Solutions
Complete listing at http://thyme.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3906 3734 290 bellsouth.net, inc.
4323 2717 1114 394 Time Warner Telecom
19262 1827 4562 274 Verizon Global Networks
1785 1777 698 129 PaeTec Communications, Inc.
4766 1698 8425 488 Korea Telecom (KIX)
20115 1552 1522 655 Charter Communications
7018 1503 5734 954 AT&T WorldNet Services
8151 1438 3000 241 UniNet S.A. de C.V.
7545 1358 232 104 TPG Internet Pty Ltd
17488 1327 144 127 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2717 2323 Time Warner Telecom
1785 1777 1648 PaeTec Communications, Inc.
19262 1827 1553 Verizon Global Networks
7545 1358 1254 TPG Internet Pty Ltd
4766 1698 1210 Korea Telecom (KIX)
17488 1327 1200 Hathway IP Over Cable Interne
8151 1438 1197 UniNet S.A. de C.V.
4755 1319 1162 TATA Communications formerly
6478 1283 1158 AT&T Worldnet Services
8452 1163 1153 TEDATA
Complete listing at http://thyme.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 5.0.0.0/8 0 *
65333 PRIVATE 10.0.0.0/8 0 *
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
Complete listing at http://thyme.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 65333 Internet Assigned Numbers Aut
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.apnic.net/london/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
31.0.0.0/16 12654 RIPE NCC RIS Project
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
41.223.189.0/24 6453 Teleglobe Inc.
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/london/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 /8:37 /9:10 /10:25 /11:68 /12:197
/13:406 /14:708 /15:1286 /16:11139 /17:5340 /18:9120
/19:18552 /20:23000 /21:22857 /22:29995 /23:29521 /24:168221
/25:10 /26:16 /27:26 /28:144 /29:76 /30:26
/31:0 /32:92
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2504 3906 bellsouth.net, inc.
4323 1390 2717 Time Warner Telecom
4766 1328 1698 Korea Telecom (KIX)
1785 1238 1777 PaeTec Communications, Inc.
11492 1074 1165 Cable One
17488 1072 1327 Hathway IP Over Cable Interne
8452 1051 1163 TEDATA
18566 1039 1058 Covad Communications
10620 982 1066 TVCABLE BOGOTA
7018 906 1503 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:7 2:2 4:13 8:286 12:2015 13:7
14:1 15:22 16:3 17:8 20:17 24:1457
27:206 31:1 32:47 33:12 38:677 40:98
41:2437 44:3 46:1 47:18 52:9 55:4
56:2 57:36 58:664 59:499 60:457 61:1006
62:1067 63:1970 64:3628 65:2357 66:4038 67:1812
68:1106 69:2865 70:719 71:380 72:1951 73:2
74:2265 75:250 76:313 77:945 78:615 79:435
80:976 81:797 82:491 83:443 84:673 85:1045
86:456 87:694 88:331 89:1553 90:94 91:2875
92:488 93:984 94:1398 95:638 96:347 97:206
98:587 99:31 108:100 109:559 110:365 111:535
112:265 113:314 114:427 115:563 116:1067 117:644
118:481 119:946 120:130 121:712 122:1458 123:931
124:1112 125:1317 128:177 129:195 130:163 131:549
132:249 133:16 134:188 135:45 136:238 137:156
138:263 139:101 140:459 141:198 142:330 143:373
144:460 145:50 146:446 147:166 148:639 149:299
150:152 151:230 152:286 153:169 154:1 155:326
156:156 157:294 158:109 159:377 160:314 161:175
162:253 163:162 164:409 165:364 166:461 167:412
168:646 169:155 170:707 171:59 172:2 173:934
174:469 175:134 176:1 178:275 180:513 182:139
183:235 184:107 186:492 187:386 188:1009 189:782
190:3759 192:5680 193:4692 194:3371 195:2809 196:1181
198:3506 199:3420 200:5305 201:1558 202:7791 203:8178
204:4013 205:2303 206:2442 207:3043 208:3869 209:3422
210:2485 211:1261 212:1711 213:1635 214:633 215:69
216:4641 217:1533 218:485 219:374 220:1134 221:384
222:312 223:1
End of report