Routing Table Report 00:00 GMT Tue 25 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: 324038
Prefixes after maximum aggregation: 147832
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 157178
Total ASes present in the Internet Routing Table: 34122
Prefixes per ASN: 9.50
Origin-only ASes present in the Internet Routing Table: 29498
Origin ASes announcing only one prefix: 14368
Transit ASes present in the Internet Routing Table: 4624
Transit-only ASes present in the Internet Routing Table: 114
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: 393
Unregistered ASNs in the Routing Table: 137
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: 168
Number of addresses announced to Internet: 2255937330
Equivalent to 134 /8s, 118 /16s and 223 /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: 82.9
Total number of prefixes smaller than registry allocations: 154484
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75421
Total APNIC prefixes after maximum aggregation: 26001
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72529
Unique aggregates announced from the APNIC address blocks: 32425
APNIC Region origin ASes present in the Internet Routing Table: 4040
APNIC Prefixes per ASN: 17.95
APNIC Region origin ASes announcing only one prefix: 1128
APNIC Region transit ASes present in the Internet Routing Table: 639
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 519876065
Equivalent to 30 /8s, 252 /16s and 173 /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: 135688
Total ARIN prefixes after maximum aggregation: 69787
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 107635
Unique aggregates announced from the ARIN address blocks: 41502
ARIN Region origin ASes present in the Internet Routing Table: 13749
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5306
ARIN Region transit ASes present in the Internet Routing Table: 1406
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731431713
Equivalent to 43 /8s, 152 /16s and 195 /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: 76836
Total RIPE prefixes after maximum aggregation: 43172
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69738
Unique aggregates announced from the RIPE address blocks: 44099
RIPE Region origin ASes present in the Internet Routing Table: 14491
RIPE Prefixes per ASN: 4.81
RIPE Region origin ASes announcing only one prefix: 7426
RIPE Region transit ASes present in the Internet Routing Table: 2205
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 426947668
Equivalent to 25 /8s, 114 /16s and 180 /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: 28599
Total LACNIC prefixes after maximum aggregation: 6863
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 27015
Unique aggregates announced from the LACNIC address blocks: 14053
LACNIC Region origin ASes present in the Internet Routing Table: 1291
LACNIC Prefixes per ASN: 20.93
LACNIC Region origin ASes announcing only one prefix: 401
LACNIC Region transit ASes present in the Internet Routing Table: 233
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73229320
Equivalent to 4 /8s, 93 /16s and 100 /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: 7229
Total AfriNIC prefixes after maximum aggregation: 1861
AfriNIC Deaggregation factor: 3.88
Prefixes being announced from the AfriNIC address blocks: 5525
Unique aggregates announced from the AfriNIC address blocks: 1666
AfriNIC Region origin ASes present in the Internet Routing Table: 363
AfriNIC Prefixes per ASN: 15.22
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: 16
Number of AfriNIC addresses announced to Internet: 17856768
Equivalent to 1 /8s, 16 /16s and 121 /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 1306 293 150 Videsh Sanchar Nigam Ltd. Aut
7545 1215 232 104 TPG Internet Pty Ltd
17974 1063 281 18 PT TELEKOMUNIKASI INDONESIA
9583 995 73 485 Sify Limited
24560 905 306 171 Bharti Airtel Ltd.
4134 851 21191 404 CHINANET-BACKBONE
9829 781 673 39 BSNL National Internet Backbo
4808 776 1455 183 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 3921 3732 288 bellsouth.net, inc.
4323 3361 1100 404 Time Warner Telecom
1785 1781 698 131 AppliedTheory Corporation
20115 1624 1508 649 Charter Communications
7018 1510 5709 952 AT&T WorldNet Services
2386 1278 551 917 AT&T Data Communications Serv
6478 1248 257 99 AT&T Worldnet Services
3356 1202 10851 400 Level 3 Communications, LLC
22773 1155 2604 64 Cox Communications, Inc.
11492 1148 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 425 133 30 Teleross, Moscow, Russia
702 417 1870 331 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 1600 2982 242 Uninet S.A. de C.V.
10620 1042 234 152 TVCABLE BOGOTA
28573 875 720 76 Types of queries are: POCs, o
7303 730 377 107 Telecom Argentina Stet-France
6503 582 173 209 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 1155 445 10 TEDATA
24863 711 147 38 LINKdotNET AS number
36992 639 278 184 Etisalat MISR
3741 270 852 231 The Internet Solution
2018 216 231 112 TENET-1
33776 209 11 14 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 3921 3732 288 bellsouth.net, inc.
4323 3361 1100 404 Time Warner Telecom
1785 1781 698 131 AppliedTheory Corporation
4766 1690 8421 478 Korea Telecom (KIX)
20115 1624 1508 649 Charter Communications
8151 1600 2982 242 Uninet S.A. de C.V.
7018 1510 5709 952 AT&T WorldNet Services
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1306 293 150 Videsh Sanchar Nigam Ltd. Aut
2386 1278 551 917 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 3361 2957 Time Warner Telecom
1785 1781 1650 AppliedTheory Corporation
8151 1600 1358 Uninet S.A. de C.V.
4766 1690 1212 Korea Telecom (KIX)
17488 1316 1193 Hathway IP Over Cable Interne
4755 1306 1156 Videsh Sanchar Nigam Ltd. Aut
6478 1248 1149 AT&T Worldnet Services
8452 1155 1145 TEDATA
7545 1215 1111 TPG Internet Pty Ltd
22773 1155 1091 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
31.0.0.0/8 237 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 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
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 /8:21 /9:10 /10:26 /11:67 /12:194
/13:401 /14:690 /15:1272 /16:11098 /17:5394 /18:9103
/19:18622 /20:22989 /21:22872 /22:29670 /23:29482 /24:169941
/25:346 /26:520 /27:220 /28:344 /29:165 /30:335
/31:0 /32:256
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2513 3921 bellsouth.net, inc.
4323 1848 3361 Time Warner Telecom
4766 1324 1690 Korea Telecom (KIX)
1785 1247 1781 AppliedTheory Corporation
11492 1064 1148 Cable One
17488 1063 1316 Hathway IP Over Cable Interne
8452 1040 1155 TEDATA
18566 1040 1059 Covad Communications
10620 958 1042 TVCABLE BOGOTA
7018 920 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 8:265 12:2014 13:10 14:1
15:23 16:3 17:8 20:21 24:1463 27:99
31:1 32:137 33:12 38:676 40:98 41:2377
44:3 47:25 52:6 55:7 56:2 57:36
58:728 59:498 60:435 61:1079 62:1089 63:1984
64:3634 65:2360 66:4269 67:1855 68:1129 69:2870
70:713 71:258 72:1869 73:2 74:2091 75:254
76:308 77:872 78:639 79:424 80:1028 81:800
82:502 83:463 84:727 85:1089 86:472 87:803
88:337 89:1723 90:88 91:2792 92:510 93:1127
94:1433 95:601 96:280 97:319 98:570 99:28
108:32 109:472 110:359 111:507 112:262 113:292
114:402 115:558 116:1040 117:648 118:445 119:929
120:148 121:727 122:1434 123:894 124:1123 125:1300
128:211 129:211 130:194 131:559 132:246 133:17
134:194 135:45 136:229 137:171 138:256 139:115
140:480 141:136 142:354 143:386 144:476 145:53
146:428 147:166 148:615 149:283 150:153 151:169
152:261 153:167 154:2 155:325 156:156 157:326
158:106 159:375 160:313 161:185 162:262 163:176
164:408 165:346 166:481 167:396 168:784 169:161
170:709 171:52 172:2 173:743 174:647 175:104
176:1 178:131 180:477 182:59 183:243 184:45
186:390 187:355 188:1368 189:788 190:3690 192:5785
193:4721 194:3424 195:2932 196:1207 198:3585 199:3443
200:5392 201:1512 202:8161 203:8323 204:4065 205:2346
206:2530 207:3035 208:3896 209:3414 210:2513 211:1267
212:1808 213:1761 214:655 215:69 216:4681 217:1553
218:494 219:400 220:1128 221:400 222:334 223:1
End of report