Routing Table Report 00:00 GMT Tue 18 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: 324098
Prefixes after maximum aggregation: 147815
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 156964
Total ASes present in the Internet Routing Table: 34085
Prefixes per ASN: 9.51
Origin-only ASes present in the Internet Routing Table: 29407
Origin ASes announcing only one prefix: 14372
Transit ASes present in the Internet Routing Table: 4678
Transit-only ASes present in the Internet Routing Table: 114
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 424
Unregistered ASNs in the Routing Table: 136
Number of 32-bit ASNs allocated by the RIRs: 570
Prefixes from 32-bit ASNs in the Routing Table: 34
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 194
Number of addresses announced to Internet: 2220520467
Equivalent to 132 /8s, 90 /16s and 116 /24s
Percentage of available address space announced: 59.9
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.8
Total number of prefixes smaller than registry allocations: 154716
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75333
Total APNIC prefixes after maximum aggregation: 26051
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 72417
Unique aggregates announced from the APNIC address blocks: 32272
APNIC Region origin ASes present in the Internet Routing Table: 4036
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: 636
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC addresses announced to Internet: 519226594
Equivalent to 30 /8s, 242 /16s and 196 /24s
Percentage of available APNIC address space announced: 77.4
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: 135813
Total ARIN prefixes after maximum aggregation: 69818
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107829
Unique aggregates announced from the ARIN address blocks: 41554
ARIN Region origin ASes present in the Internet Routing Table: 13725
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5298
ARIN Region transit ASes present in the Internet Routing Table: 1424
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731148833
Equivalent to 43 /8s, 148 /16s and 114 /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: 76597
Total RIPE prefixes after maximum aggregation: 43092
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69511
Unique aggregates announced from the RIPE address blocks: 43999
RIPE Region origin ASes present in the Internet Routing Table: 14478
RIPE Prefixes per ASN: 4.80
RIPE Region origin ASes announcing only one prefix: 7435
RIPE Region transit ASes present in the Internet Routing Table: 2233
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 426000436
Equivalent to 25 /8s, 100 /16s and 64 /24s
Percentage of available RIPE address space announced: 74.7
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: 28755
Total LACNIC prefixes after maximum aggregation: 6822
LACNIC Deaggregation factor: 4.22
Prefixes being announced from the LACNIC address blocks: 27143
Unique aggregates announced from the LACNIC address blocks: 14054
LACNIC Region origin ASes present in the Internet Routing Table: 1294
LACNIC Prefixes per ASN: 20.98
LACNIC Region origin ASes announcing only one prefix: 403
LACNIC Region transit ASes present in the Internet Routing Table: 230
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 73149448
Equivalent to 4 /8s, 92 /16s and 44 /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: 7323
Total AfriNIC prefixes after maximum aggregation: 1861
AfriNIC Deaggregation factor: 3.93
Prefixes being announced from the AfriNIC address blocks: 5623
Unique aggregates announced from the AfriNIC address blocks: 1658
AfriNIC Region origin ASes present in the Internet Routing Table: 363
AfriNIC Prefixes per ASN: 15.49
AfriNIC Region origin ASes announcing only one prefix: 109
AfriNIC Region transit ASes present in the Internet Routing Table: 85
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC addresses announced to Internet: 17844224
Equivalent to 1 /8s, 16 /16s and 72 /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 479 Korea Telecom (KIX)
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1307 293 153 Videsh Sanchar Nigam Ltd. Aut
7545 1198 232 105 TPG Internet Pty Ltd
17974 1033 281 18 PT TELEKOMUNIKASI INDONESIA
9583 993 73 484 Sify Limited
4134 912 21190 403 CHINANET-BACKBONE
24560 897 304 167 Bharti Airtel Ltd.
9829 776 677 45 BSNL National Internet Backbo
4808 773 1449 186 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 3922 3700 283 bellsouth.net, inc.
4323 3839 1116 404 Time Warner Telecom
1785 1780 699 132 AppliedTheory Corporation
20115 1623 1507 650 Charter Communications
7018 1529 5745 967 AT&T WorldNet Services
2386 1288 551 918 AT&T Data Communications Serv
6478 1243 256 100 AT&T Worldnet Services
3356 1207 10867 403 Level 3 Communications, LLC
22773 1170 2606 72 Cox Communications, Inc.
11492 1145 209 284 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 625 56 6 United Telecom AS
9116 526 296 31 Goldenlines main autonomous s
3292 474 2027 393 TDC Tele Danmark
30890 440 116 206 Evolva Telecom
3216 426 133 30 Teleross, Moscow, Russia
702 414 1869 329 UUNET - Commercial IP service
8551 403 355 38 Bezeq International
8866 395 117 18 Bulgarian Telecommunication C
3301 366 1414 322 TeliaNet Sweden
3320 364 7072 317 Deutsche Telekom AG
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 1595 2963 236 Uninet S.A. de C.V.
10620 1037 233 151 TVCABLE BOGOTA
28573 893 739 86 Types of queries are: POCs, o
7303 721 373 102 Telecom Argentina Stet-France
6503 575 172 208 AVANTEL, S.A.
22047 549 310 15 Types of queries are: POCs, o
7738 477 922 30 Telecomunicacoes da Bahia S.A
11830 477 308 49 Instituto Costarricense de El
3816 468 201 73 COLOMBIA TELECOMUNICACIONES S
14117 448 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 1253 445 10 TEDATA
24863 714 147 39 LINKdotNET AS number
36992 636 276 182 Etisalat MISR
3741 271 852 232 The Internet Solution
33776 214 11 15 Starcomms Nigeria Limited
2018 211 230 113 TENET-1
24835 177 78 10 RAYA Telecom - Egypt
6713 176 167 12 Itissalat Al-MAGHRIB
29571 172 19 9 Ci Telecom Autonomous system
29975 133 506 14 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 3922 3700 283 bellsouth.net, inc.
4323 3839 1116 404 Time Warner Telecom
1785 1780 699 132 AppliedTheory Corporation
4766 1690 8421 479 Korea Telecom (KIX)
20115 1623 1507 650 Charter Communications
8151 1595 2963 236 Uninet S.A. de C.V.
7018 1529 5745 967 AT&T WorldNet Services
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1307 293 153 Videsh Sanchar Nigam Ltd. Aut
2386 1288 551 918 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 3839 3435 Time Warner Telecom
1785 1780 1648 AppliedTheory Corporation
8151 1595 1359 Uninet S.A. de C.V.
8452 1253 1243 TEDATA
4766 1690 1211 Korea Telecom (KIX)
17488 1316 1193 Hathway IP Over Cable Interne
4755 1307 1154 Videsh Sanchar Nigam Ltd. Aut
6478 1243 1143 AT&T Worldnet Services
22773 1170 1098 Cox Communications, Inc.
7545 1198 1093 TPG Internet Pty Ltd
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 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
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
41.202.96.0/19 29571 Ci Telecom Autonomous system
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
41.223.196.0/24 36990 Alkan Telecom Ltd
41.223.197.0/24 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
/13:403 /14:693 /15:1267 /16:11085 /17:5389 /18:9115
/19:18617 /20:23022 /21:22928 /22:29712 /23:29454 /24:169924
/25:348 /26:517 /27:216 /28:343 /29:163 /30:337
/31:0 /32:248
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2511 3922 bellsouth.net, inc.
4323 2332 3839 Time Warner Telecom
4766 1324 1690 Korea Telecom (KIX)
1785 1245 1780 AppliedTheory Corporation
8452 1131 1253 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1061 1145 Cable One
18566 1040 1059 Covad Communications
10620 953 1037 TVCABLE BOGOTA
7018 930 1529 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 12:2021 13:10 15:23
16:3 17:8 20:21 24:1442 27:63 31:1
32:137 33:12 38:672 40:98 41:2475 44:3
47:26 52:6 55:6 56:2 57:36 58:724
59:510 60:434 61:1095 62:1075 63:1983 64:3849
65:2370 66:4225 67:1850 68:1112 69:2833 70:712
71:258 72:1832 73:2 74:2292 75:253 76:306
77:878 78:638 79:421 80:1021 81:807 82:502
83:457 84:724 85:1075 86:468 87:791 88:330
89:1702 90:88 91:2788 92:489 93:1120 94:1430
95:605 96:279 97:317 98:575 99:28 108:16
109:478 110:348 111:500 112:257 113:284 114:398
115:593 116:1032 117:640 118:433 119:953 120:144
121:733 122:1439 123:887 124:1130 125:1292 128:210
129:211 130:192 131:558 132:246 133:17 134:195
135:45 136:228 137:172 138:255 139:103 140:483
141:136 142:354 143:393 144:475 145:53 146:425
147:165 148:609 149:289 150:153 151:169 152:262
153:167 154:2 155:329 156:154 157:326 158:107
159:372 160:313 161:205 162:262 163:172 164:408
165:347 166:479 167:393 168:786 169:161 170:700
171:51 172:2 173:737 174:618 175:102 176:1
178:102 180:472 182:57 183:251 184:76 186:382
187:344 188:1340 189:777 190:3669 192:5785 193:4720
194:3414 195:2936 196:1216 197:1 198:3575 199:3436
200:5361 201:1521 202:8142 203:8309 204:4062 205:2320
206:2540 207:3033 208:3927 209:3437 210:2520 211:1267
212:1792 213:1755 214:659 215:70 216:4620 217:1560
218:496 219:401 220:1110 221:401 222:326
End of report