Routing Table Report 08:00 +10GMT Sat 17 Jul, 2010
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 320922
Prefixes after maximum aggregation: 148225
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 158894
Total ASes present in the Internet Routing Table: 34251
Prefixes per ASN: 9.37
Origin-only ASes present in the Internet Routing Table: 29693
Origin ASes announcing only one prefix: 14475
Transit ASes present in the Internet Routing Table: 4558
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 3.5
Max AS path length visible: 25
Max AS path prepend of ASN (41664) 21
Prefixes from unregistered ASNs in the Routing Table: 327
Unregistered ASNs in the Routing Table: 115
Number of 32-bit ASNs allocated by the RIRs: 686
Prefixes from 32-bit ASNs in the Routing Table: 826
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 165
Number of addresses announced to Internet: 2562060288
Equivalent to 152 /8s, 181 /16s and 240 /24s
Percentage of available address space announced: 69.1
Percentage of allocated address space announced: 74.5
Percentage of available address space allocated: 92.8
Percentage of address space in use by end-sites: 83.8
Total number of prefixes smaller than registry allocations: 150852
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75571
Total APNIC prefixes after maximum aggregation: 26059
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 73236
Unique aggregates announced from the APNIC address blocks: 33457
APNIC Region origin ASes present in the Internet Routing Table: 4059
APNIC Prefixes per ASN: 18.04
APNIC Region origin ASes announcing only one prefix: 1151
APNIC Region transit ASes present in the Internet Routing Table: 620
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 531174912
Equivalent to 31 /8s, 169 /16s and 22 /24s
Percentage of available APNIC address space announced: 79.2
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: 132611
Total ARIN prefixes after maximum aggregation: 68907
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 105967
Unique aggregates announced from the ARIN address blocks: 41893
ARIN Region origin ASes present in the Internet Routing Table: 13740
ARIN Prefixes per ASN: 7.71
ARIN Region origin ASes announcing only one prefix: 5288
ARIN Region transit ASes present in the Internet Routing Table: 1350
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 729596416
Equivalent to 43 /8s, 124 /16s and 194 /24s
Percentage of available ARIN address space announced: 62.1
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: 75316
Total RIPE prefixes after maximum aggregation: 43397
RIPE Deaggregation factor: 1.74
Prefixes being announced from the RIPE address blocks: 68435
Unique aggregates announced from the RIPE address blocks: 44441
RIPE Region origin ASes present in the Internet Routing Table: 14601
RIPE Prefixes per ASN: 4.69
RIPE Region origin ASes announcing only one prefix: 7507
RIPE Region transit ASes present in the Internet Routing Table: 2224
Average RIPE Region AS path length visible: 3.3
Max RIPE Region AS path length visible: 24
Number of RIPE addresses announced to Internet: 434113280
Equivalent to 25 /8s, 224 /16s and 11 /24s
Percentage of available RIPE address space announced: 76.1
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: 28681
Total LACNIC prefixes after maximum aggregation: 6887
LACNIC Deaggregation factor: 4.16
Prefixes being announced from the LACNIC address blocks: 27310
Unique aggregates announced from the LACNIC address blocks: 14513
LACNIC Region origin ASes present in the Internet Routing Table: 1299
LACNIC Prefixes per ASN: 21.02
LACNIC Region origin ASes announcing only one prefix: 410
LACNIC Region transit ASes present in the Internet Routing Table: 225
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 75577856
Equivalent to 4 /8s, 129 /16s and 58 /24s
Percentage of available LACNIC address space announced: 56.3
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: 7250
Total AfriNIC prefixes after maximum aggregation: 1852
AfriNIC Deaggregation factor: 3.91
Prefixes being announced from the AfriNIC address blocks: 5564
Unique aggregates announced from the AfriNIC address blocks: 1599
AfriNIC Region origin ASes present in the Internet Routing Table: 376
AfriNIC Prefixes per ASN: 14.80
AfriNIC Region origin ASes announcing only one prefix: 119
AfriNIC Region transit ASes present in the Internet Routing Table: 80
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 14
Number of AfriNIC addresses announced to Internet: 19618560
Equivalent to 1 /8s, 43 /16s and 91 /24s
Percentage of available AfriNIC address space announced: 58.5
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 1696 8425 488 Korea Telecom (KIX)
7545 1379 232 105 TPG Internet Pty Ltd
17488 1333 145 127 Hathway IP Over Cable Interne
4755 1322 297 157 TATA Communications formerly
17974 1161 285 51 PT TELEKOMUNIKASI INDONESIA
9583 1001 74 485 Sify Limited
24560 957 305 178 Bharti Airtel Ltd., Telemedia
4134 849 21740 411 CHINANET-BACKBONE
9829 813 685 32 BSNL National Internet Backbo
4808 760 1475 189 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 3891 3718 287 bellsouth.net, inc.
4323 2717 1112 393 Time Warner Telecom
19262 1827 4562 274 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
20115 1548 1524 653 Charter Communications
7018 1480 5732 961 AT&T WorldNet Services
2386 1281 552 910 AT&T Data Communications Serv
6478 1253 251 200 AT&T Worldnet Services
22773 1172 2859 65 Cox Communications, Inc.
3356 1162 10879 405 Level 3 Communications, LLC
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 652 56 6 United Telecom of Georgia
9116 531 328 32 Goldenlines main autonomous s
9198 497 202 13 Kazakhtelecom Data Network Ad
3292 453 2027 394 TDC Tele Danmark
30890 440 111 206 Evolva Telecom
702 413 1869 325 UUNET - Commercial IP service
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 1439 3031 240 UniNet S.A. de C.V.
10620 1072 240 149 TVCABLE BOGOTA
28573 1036 812 99 NET Servicos de Comunicao S.A
7303 736 390 93 Telecom Argentina Stet-France
6503 689 177 218 AVANTEL, S.A.
22047 551 310 15 VTR PUNTO NET S.A.
3816 502 218 88 Empresa Nacional de Telecomun
14420 498 32 72 ANDINATEL S.A.
7738 477 922 30 Telecomunicacoes da Bahia S.A
11172 447 99 76 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 1100 445 10 TEDATA
24863 723 146 36 LINKdotNET AS number
36992 650 279 185 Etisalat MISR
3741 267 834 229 The Internet Solution
33776 220 12 12 Starcomms Nigeria Limited
2018 209 244 61 Tertiary Education Network
6713 195 186 16 Itissalat Al-MAGHRIB
24835 189 78 9 RAYA Telecom - Egypt
29571 177 19 10 Ci Telecom Autonomous system
16637 172 441 100 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 3891 3718 287 bellsouth.net, inc.
4323 2717 1112 393 Time Warner Telecom
19262 1827 4562 274 Verizon Global Networks
1785 1780 698 129 PaeTec Communications, Inc.
4766 1696 8425 488 Korea Telecom (KIX)
20115 1548 1524 653 Charter Communications
7018 1480 5732 961 AT&T WorldNet Services
8151 1439 3031 240 UniNet S.A. de C.V.
7545 1379 232 105 TPG Internet Pty Ltd
17488 1333 145 127 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 2324 Time Warner Telecom
1785 1780 1651 PaeTec Communications, Inc.
19262 1827 1553 Verizon Global Networks
7545 1379 1274 TPG Internet Pty Ltd
4766 1696 1208 Korea Telecom (KIX)
17488 1333 1206 Hathway IP Over Cable Interne
8151 1439 1199 UniNet S.A. de C.V.
4755 1322 1165 TATA Communications formerly
17974 1161 1110 PT TELEKOMUNIKASI INDONESIA
22773 1172 1107 Cox Communications, Inc.
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 /8:38 /9:10 /10:25 /11:68 /12:198
/13:407 /14:712 /15:1289 /16:11157 /17:5354 /18:9161
/19:18587 /20:23106 /21:22915 /22:29789 /23:29422 /24:168296
/25:10 /26:16 /27:26 /28:142 /29:76 /30:27
/31:0 /32:91
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2491 3891 bellsouth.net, inc.
4323 1391 2717 Time Warner Telecom
4766 1326 1696 Korea Telecom (KIX)
1785 1241 1780 PaeTec Communications, Inc.
17488 1078 1333 Hathway IP Over Cable Interne
11492 1068 1160 Cable One
18566 1039 1058 Covad Communications
8452 992 1100 TEDATA
10620 988 1072 TVCABLE BOGOTA
7018 885 1480 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:10 2:2 4:13 8:287 12:2017 13:7
14:1 15:22 16:3 17:8 20:6 24:1462
27:248 31:1 32:47 33:12 38:685 40:98
41:2389 44:3 46:2 47:17 52:9 55:4
56:2 57:36 58:663 59:500 60:459 61:1008
62:1044 63:1965 64:3653 65:2346 66:4035 67:1829
68:1110 69:2691 70:723 71:385 72:1946 73:2
74:2258 75:249 76:316 77:897 78:619 79:429
80:975 81:766 82:495 83:443 84:659 85:1050
86:458 87:697 88:340 89:1563 90:94 91:2881
92:501 93:988 94:1403 95:645 96:351 97:212
98:609 99:31 108:100 109:567 110:384 111:538
112:281 113:319 114:431 115:564 116:1080 117:646
118:482 119:881 120:129 121:705 122:1479 123:942
124:1104 125:1319 128:177 129:192 130:163 131:548
132:245 133:16 134:186 135:45 136:239 137:143
138:264 139:101 140:459 141:197 142:322 143:368
144:463 145:50 146:445 147:165 148:641 149:299
150:153 151:229 152:286 153:161 154:1 155:358
156:157 157:296 158:108 159:354 160:315 161:177
162:250 163:167 164:405 165:363 166:458 167:414
168:645 169:155 170:707 171:59 172:2 173:943
174:485 175:145 176:1 178:303 180:518 182:139
183:235 184:111 186:501 187:393 188:1009 189:773
190:3795 192:5676 193:4709 194:3395 195:2803 196:1189
198:3510 199:3426 200:5312 201:1562 202:7805 203:8203
204:4015 205:2294 206:2401 207:3033 208:3863 209:3421
210:2478 211:1266 212:1725 213:1665 214:637 215:69
216:4677 217:1530 218:490 219:373 220:1142 221:386
222:311 223:1
End of report