Routing Table Report 00:00 GMT Wed 12 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: 323960
Prefixes after maximum aggregation: 147610
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 156768
Total ASes present in the Internet Routing Table: 34033
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 29380
Origin ASes announcing only one prefix: 14352
Transit ASes present in the Internet Routing Table: 4653
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 38
Max AS path prepend of ASN (48687) 24
Prefixes from unregistered ASNs in the Routing Table: 431
Unregistered ASNs in the Routing Table: 140
Number of 32-bit ASNs allocated by the RIRs: 561
Prefixes from 32-bit ASNs in the Routing Table: 23
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 199
Number of addresses announced to Internet: 2211888019
Equivalent to 131 /8s, 214 /16s and 187 /24s
Percentage of available address space announced: 59.7
Percentage of allocated address space announced: 65.0
Percentage of available address space allocated: 91.9
Percentage of address space in use by end-sites: 82.7
Total number of prefixes smaller than registry allocations: 154776
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75437
Total APNIC prefixes after maximum aggregation: 25997
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72241
Unique aggregates announced from the APNIC address blocks: 32234
APNIC Region origin ASes present in the Internet Routing Table: 4026
APNIC Prefixes per ASN: 17.94
APNIC Region origin ASes announcing only one prefix: 1122
APNIC Region transit ASes present in the Internet Routing Table: 637
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC addresses announced to Internet: 515594978
Equivalent to 30 /8s, 187 /16s and 90 /24s
Percentage of available APNIC address space announced: 76.8
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: 135700
Total ARIN prefixes after maximum aggregation: 69733
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 107713
Unique aggregates announced from the ARIN address blocks: 41523
ARIN Region origin ASes present in the Internet Routing Table: 13704
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5284
ARIN Region transit ASes present in the Internet Routing Table: 1407
Average ARIN Region AS path length visible: 3.8
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 726818081
Equivalent to 43 /8s, 82 /16s and 93 /24s
Percentage of available ARIN address space announced: 61.9
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: 76492
Total RIPE prefixes after maximum aggregation: 43081
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69357
Unique aggregates announced from the RIPE address blocks: 43933
RIPE Region origin ASes present in the Internet Routing Table: 14462
RIPE Prefixes per ASN: 4.80
RIPE Region origin ASes announcing only one prefix: 7432
RIPE Region transit ASes present in the Internet Routing Table: 2233
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 38
Number of RIPE addresses announced to Internet: 425413044
Equivalent to 25 /8s, 91 /16s and 73 /24s
Percentage of available RIPE address space announced: 74.6
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: 28774
Total LACNIC prefixes after maximum aggregation: 6798
LACNIC Deaggregation factor: 4.23
Prefixes being announced from the LACNIC address blocks: 27174
Unique aggregates announced from the LACNIC address blocks: 13981
LACNIC Region origin ASes present in the Internet Routing Table: 1284
LACNIC Prefixes per ASN: 21.16
LACNIC Region origin ASes announcing only one prefix: 407
LACNIC Region transit ASes present in the Internet Routing Table: 227
Average LACNIC Region AS path length visible: 4.3
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73053448
Equivalent to 4 /8s, 90 /16s and 181 /24s
Percentage of available LACNIC address space announced: 72.6
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: 7274
Total AfriNIC prefixes after maximum aggregation: 1837
AfriNIC Deaggregation factor: 3.96
Prefixes being announced from the AfriNIC address blocks: 5567
Unique aggregates announced from the AfriNIC address blocks: 1667
AfriNIC Region origin ASes present in the Internet Routing Table: 361
AfriNIC Prefixes per ASN: 15.42
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: 4.1
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC addresses announced to Internet: 17836544
Equivalent to 1 /8s, 16 /16s and 42 /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 1689 8421 478 Korea Telecom (KIX)
17488 1314 140 123 Hathway IP Over Cable Interne
4755 1294 291 146 Videsh Sanchar Nigam Ltd. Aut
7545 1194 232 105 TPG Internet Pty Ltd
17974 989 281 18 PT TELEKOMUNIKASI INDONESIA
9583 983 72 483 Sify Limited
4134 932 21191 405 CHINANET-BACKBONE
24560 893 304 167 Bharti Airtel Ltd.
9829 787 679 41 BSNL National Internet Backbo
4808 776 1455 189 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 3925 3721 287 bellsouth.net, inc.
4323 3836 1116 406 Time Warner Telecom
1785 1783 699 131 AppliedTheory Corporation
20115 1621 1507 650 Charter Communications
7018 1529 5745 968 AT&T WorldNet Services
2386 1310 569 934 AT&T Data Communications Serv
6478 1239 256 107 AT&T Worldnet Services
3356 1224 10900 418 Level 3 Communications, LLC
22773 1168 2606 72 Cox Communications, Inc.
11492 1142 208 285 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 625 56 6 United Telecom AS
9116 526 296 31 Goldenlines main autonomous s
3292 474 2027 393 TDC Tele Danmark
30890 438 100 205 Evolva Telecom
3216 429 133 30 Teleross, Moscow, Russia
702 414 1869 329 UUNET - Commercial IP service
8551 402 356 37 Bezeq International
8866 394 117 18 Bulgarian Telecommunication C
3301 365 1413 321 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 1599 2965 240 Uninet S.A. de C.V.
10620 1032 231 148 TVCABLE BOGOTA
28573 890 738 86 Types of queries are: POCs, o
7303 728 372 103 Telecom Argentina Stet-France
6503 565 171 211 AVANTEL, S.A.
22047 546 310 15 Types of queries are: POCs, o
18881 500 268 11 Global Village Telecom
7738 477 922 30 Telecomunicacoes da Bahia S.A
11830 477 308 49 Instituto Costarricense de El
3816 462 196 71 COLOMBIA TELECOMUNICACIONES S
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 1241 445 10 TEDATA
24863 709 147 42 LINKdotNET AS number
36992 623 274 177 Etisalat MISR
3741 273 852 232 The Internet Solution
2018 216 231 112 TENET-1
33776 208 11 14 Starcomms Nigeria Limited
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 3925 3721 287 bellsouth.net, inc.
4323 3836 1116 406 Time Warner Telecom
1785 1783 699 131 AppliedTheory Corporation
4766 1689 8421 478 Korea Telecom (KIX)
20115 1621 1507 650 Charter Communications
8151 1599 2965 240 Uninet S.A. de C.V.
7018 1529 5745 968 AT&T WorldNet Services
17488 1314 140 123 Hathway IP Over Cable Interne
2386 1310 569 934 AT&T Data Communications Serv
4755 1294 291 146 Videsh Sanchar Nigam Ltd. Aut
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3836 3430 Time Warner Telecom
1785 1783 1652 AppliedTheory Corporation
8151 1599 1359 Uninet S.A. de C.V.
8452 1241 1231 TEDATA
4766 1689 1211 Korea Telecom (KIX)
17488 1314 1191 Hathway IP Over Cable Interne
4755 1294 1148 Videsh Sanchar Nigam Ltd. Aut
6478 1239 1132 AT&T Worldnet Services
22773 1168 1096 Cox Communications, Inc.
7545 1194 1089 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 22351 Intelsat
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 /10:25 /11:67 /12:193
/13:401 /14:689 /15:1262 /16:11077 /17:5396 /18:9118
/19:18603 /20:23005 /21:22915 /22:29681 /23:29465 /24:169870
/25:346 /26:512 /27:217 /28:341 /29:164 /30:335
/31:0 /32:248
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2511 3925 bellsouth.net, inc.
4323 2332 3836 Time Warner Telecom
4766 1324 1689 Korea Telecom (KIX)
1785 1244 1783 AppliedTheory Corporation
8452 1121 1241 TEDATA
17488 1063 1314 Hathway IP Over Cable Interne
11492 1058 1142 Cable One
18566 1040 1059 Covad Communications
10620 948 1032 TVCABLE BOGOTA
7018 926 1529 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:265 12:2019 13:10 15:23 16:3
17:8 20:21 24:1451 27:55 31:1 32:137
33:12 38:667 40:98 41:2452 44:3 46:1
47:26 52:6 55:6 56:2 57:36 58:724
59:515 60:433 61:1091 62:1072 63:1981 64:3863
65:2367 66:4223 67:1836 68:1098 69:2825 70:708
71:255 72:1849 73:2 74:2288 75:250 76:306
77:860 78:634 79:407 80:1012 81:802 82:499
83:453 84:734 85:1087 86:472 87:789 88:331
89:1722 90:87 91:2778 92:485 93:1119 94:1411
95:596 96:244 97:315 98:572 99:28 108:16
109:470 110:338 111:492 112:255 113:291 114:396
115:595 116:1030 117:641 118:415 119:934 120:144
121:724 122:1434 123:883 124:1128 125:1299 128:211
129:209 130:197 131:561 132:245 133:17 134:195
135:45 136:225 137:172 138:254 139:103 140:483
141:137 142:355 143:392 144:456 145:53 146:428
147:167 148:603 149:286 150:153 151:168 152:262
153:167 154:2 155:329 156:184 157:327 158:107
159:369 160:315 161:205 162:266 163:174 164:406
165:533 166:485 167:396 168:800 169:161 170:708
171:51 172:1 173:728 174:669 175:101 176:1
178:92 180:463 182:50 183:249 184:40 186:379
187:336 188:1347 189:768 190:3659 192:5779 193:4708
194:3415 195:2930 196:1215 197:1 198:3581 199:3444
200:5355 201:1519 202:8157 203:8305 204:4064 205:2337
206:2538 207:3029 208:3929 209:3436 210:2521 211:1262
212:1787 213:1759 214:665 215:70 216:4615 217:1555
218:508 219:401 220:1108 221:401 222:308
End of report