Routing Table Report 00:00 GMT Mon 24 May, 2010
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: 324381
Prefixes after maximum aggregation: 147833
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 157178
Total ASes present in the Internet Routing Table: 34106
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 29520
Origin ASes announcing only one prefix: 14355
Transit ASes present in the Internet Routing Table: 4586
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 24
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 394
Unregistered ASNs in the Routing Table: 138
Number of 32-bit ASNs allocated by the RIRs: 590
Prefixes from 32-bit ASNs in the Routing Table: 14
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 166
Number of addresses announced to Internet: 2222215186
Equivalent to 132 /8s, 116 /16s and 80 /24s
Percentage of available address space announced: 60.0
Percentage of allocated address space announced: 65.3
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.9
Total number of prefixes smaller than registry allocations: 154853
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75323
Total APNIC prefixes after maximum aggregation: 26008
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72431
Unique aggregates announced from the APNIC address blocks: 32429
APNIC Region origin ASes present in the Internet Routing Table: 4038
APNIC Prefixes per ASN: 17.94
APNIC Region origin ASes announcing only one prefix: 1127
APNIC Region transit ASes present in the Internet Routing Table: 630
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 519853025
Equivalent to 30 /8s, 252 /16s and 83 /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: 136164
Total ARIN prefixes after maximum aggregation: 69769
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108119
Unique aggregates announced from the ARIN address blocks: 41494
ARIN Region origin ASes present in the Internet Routing Table: 13724
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5284
ARIN Region transit ASes present in the Internet Routing Table: 1384
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731242017
Equivalent to 43 /8s, 149 /16s and 222 /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: 76874
Total RIPE prefixes after maximum aggregation: 43198
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69772
Unique aggregates announced from the RIPE address blocks: 44097
RIPE Region origin ASes present in the Internet Routing Table: 14504
RIPE Prefixes per ASN: 4.81
RIPE Region origin ASes announcing only one prefix: 7437
RIPE Region transit ASes present in the Internet Routing Table: 2196
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 426946356
Equivalent to 25 /8s, 114 /16s and 175 /24s
Percentage of available RIPE address space announced: 74.8
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: 28541
Total LACNIC prefixes after maximum aggregation: 6840
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 26968
Unique aggregates announced from the LACNIC address blocks: 14034
LACNIC Region origin ASes present in the Internet Routing Table: 1292
LACNIC Prefixes per ASN: 20.87
LACNIC Region origin ASes announcing only one prefix: 399
LACNIC Region transit ASes present in the Internet Routing Table: 232
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73220872
Equivalent to 4 /8s, 93 /16s and 67 /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: 7212
Total AfriNIC prefixes after maximum aggregation: 1870
AfriNIC Deaggregation factor: 3.86
Prefixes being announced from the AfriNIC address blocks: 5510
Unique aggregates announced from the AfriNIC address blocks: 1681
AfriNIC Region origin ASes present in the Internet Routing Table: 365
AfriNIC Prefixes per ASN: 15.10
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 83
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 19
Number of AfriNIC addresses announced to Internet: 17860352
Equivalent to 1 /8s, 16 /16s and 135 /24s
Percentage of available AfriNIC address space announced: 53.2
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 1690 8421 478 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1304 293 149 Videsh Sanchar Nigam Ltd. Aut
7545 1213 232 105 TPG Internet Pty Ltd
17974 1055 281 18 PT TELEKOMUNIKASI INDONESIA
9583 995 73 485 Sify Limited
24560 903 305 169 Bharti Airtel Ltd.
4134 850 21191 403 CHINANET-BACKBONE
9829 781 673 39 BSNL National Internet Backbo
4808 773 1447 184 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 3930 3733 287 bellsouth.net, inc.
4323 3844 1116 405 Time Warner Telecom
1785 1781 698 131 AppliedTheory Corporation
20115 1624 1508 649 Charter Communications
7018 1510 5726 954 AT&T WorldNet Services
2386 1274 551 913 AT&T Data Communications Serv
6478 1248 257 99 AT&T Worldnet Services
3356 1207 10869 405 Level 3 Communications, LLC
22773 1154 2604 64 Cox Communications, Inc.
11492 1146 210 285 Cable One
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
35805 627 56 6 United Telecom AS
9116 530 328 32 Goldenlines main autonomous s
3292 476 2027 394 TDC Tele Danmark
30890 442 116 207 Evolva Telecom
3216 422 133 30 Teleross, Moscow, Russia
702 416 1870 330 UUNET - Commercial IP service
8551 402 355 38 Bezeq International
8866 397 117 18 Bulgarian Telecommunication C
3320 365 7072 317 Deutsche Telekom AG
3301 364 1413 321 TeliaNet Sweden
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
8151 1587 2962 237 Uninet S.A. de C.V.
10620 1042 234 152 TVCABLE BOGOTA
28573 873 720 76 Types of queries are: POCs, o
7303 730 377 107 Telecom Argentina Stet-France
6503 580 173 209 AVANTEL, S.A.
22047 545 310 15 Types of queries are: POCs, o
7738 477 922 30 Telecomunicacoes da Bahia S.A
11830 476 308 56 Instituto Costarricense de El
3816 470 202 73 COLOMBIA TELECOMUNICACIONES S
14117 455 30 13 Telefonica del Sur S.A.
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 1162 445 10 TEDATA
24863 712 147 39 LINKdotNET AS number
36992 639 278 184 Etisalat MISR
3741 268 852 231 The Internet Solution
2018 216 231 112 TENET-1
33776 189 11 21 Starcomms Nigeria Limited
6713 176 167 12 Itissalat Al-MAGHRIB
24835 175 78 10 RAYA Telecom - Egypt
29571 172 19 9 Ci Telecom Autonomous system
29975 132 490 17 Vodacom
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 3930 3733 287 bellsouth.net, inc.
4323 3844 1116 405 Time Warner Telecom
1785 1781 698 131 AppliedTheory Corporation
4766 1690 8421 478 Korea Telecom (KIX)
20115 1624 1508 649 Charter Communications
8151 1587 2962 237 Uninet S.A. de C.V.
7018 1510 5726 954 AT&T WorldNet Services
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1304 293 149 Videsh Sanchar Nigam Ltd. Aut
2386 1274 551 913 AT&T Data Communications Serv
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3844 3439 Time Warner Telecom
1785 1781 1650 AppliedTheory Corporation
8151 1587 1350 Uninet S.A. de C.V.
4766 1690 1212 Korea Telecom (KIX)
17488 1316 1193 Hathway IP Over Cable Interne
4755 1304 1155 Videsh Sanchar Nigam Ltd. Aut
8452 1162 1152 TEDATA
6478 1248 1149 AT&T Worldnet Services
7545 1213 1108 TPG Internet Pty Ltd
22773 1154 1090 Cox Communications, Inc.
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 12.39.155.0/24 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/rviews/data-badAS
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 Amsco Telecommunications Nige
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
41.223.199.0/24 36990 Alkan Telecom Ltd
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 /8:20 /9:10 /10:26 /11:67 /12:194
/13:401 /14:690 /15:1272 /16:11095 /17:5386 /18:9099
/19:18614 /20:22988 /21:22863 /22:29686 /23:29494 /24:170292
/25:347 /26:524 /27:219 /28:341 /29:162 /30:335
/31:0 /32:256
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2515 3930 bellsouth.net, inc.
4323 2330 3844 Time Warner Telecom
4766 1324 1690 Korea Telecom (KIX)
1785 1247 1781 AppliedTheory Corporation
17488 1063 1316 Hathway IP Over Cable Interne
11492 1062 1146 Cable One
8452 1042 1162 TEDATA
18566 1040 1059 Covad Communications
10620 958 1042 TVCABLE BOGOTA
7018 922 1510 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 4:13 8:266 12:2014 13:10 14:1
15:23 16:3 17:8 20:21 24:1460 27:99
31:1 32:137 33:12 38:674 40:98 41:2362
44:3 47:26 52:6 55:7 56:2 57:36
58:726 59:498 60:434 61:1074 62:1087 63:1984
64:3868 65:2361 66:4267 67:1854 68:1128 69:2871
70:712 71:257 72:1869 73:2 74:2309 75:254
76:308 77:870 78:635 79:424 80:1024 81:806
82:507 83:464 84:728 85:1090 86:472 87:803
88:334 89:1724 90:88 91:2793 92:509 93:1126
94:1432 95:604 96:280 97:319 98:569 99:28
108:32 109:481 110:354 111:508 112:262 113:289
114:401 115:558 116:1040 117:648 118:442 119:928
120:148 121:727 122:1434 123:897 124:1118 125:1297
128:211 129:211 130:194 131:559 132:246 133:17
134:194 135:45 136:228 137:171 138:255 139:115
140:480 141:136 142:354 143:387 144:474 145:53
146:428 147:166 148:612 149:288 150:153 151:169
152:261 153:167 154:2 155:325 156:156 157:326
158:107 159:375 160:313 161:185 162:262 163:177
164:407 165:346 166:480 167:396 168:785 169:161
170:707 171:52 172:2 173:740 174:646 175:103
176:1 178:122 180:477 182:57 183:255 184:45
186:373 187:351 188:1371 189:782 190:3686 192:5783
193:4716 194:3420 195:2930 196:1210 198:3584 199:3443
200:5386 201:1514 202:8167 203:8312 204:4064 205:2344
206:2537 207:3034 208:3892 209:3415 210:2504 211:1267
212:1807 213:1759 214:656 215:70 216:4685 217:1554
218:492 219:400 220:1125 221:400 222:335 223:1
End of report
