Routing Table Report 00:00 GMT Sat 22 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: 324379
Prefixes after maximum aggregation: 147814
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 157096
Total ASes present in the Internet Routing Table: 34088
Prefixes per ASN: 9.52
Origin-only ASes present in the Internet Routing Table: 29519
Origin ASes announcing only one prefix: 14337
Transit ASes present in the Internet Routing Table: 4569
Transit-only ASes present in the Internet Routing Table: 110
Average AS path length visible in the Internet Routing Table: 3.8
Max AS path length visible: 25
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 385
Unregistered ASNs in the Routing Table: 138
Number of 32-bit ASNs allocated by the RIRs: 581
Prefixes from 32-bit ASNs in the Routing Table: 10
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 168
Number of addresses announced to Internet: 2221541683
Equivalent to 132 /8s, 106 /16s and 9 /24s
Percentage of available address space announced: 59.9
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: 154857
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 75313
Total APNIC prefixes after maximum aggregation: 26008
APNIC Deaggregation factor: 2.90
Prefixes being announced from the APNIC address blocks: 72416
Unique aggregates announced from the APNIC address blocks: 32332
APNIC Region origin ASes present in the Internet Routing Table: 4032
APNIC Prefixes per ASN: 17.96
APNIC Region origin ASes announcing only one prefix: 1122
APNIC Region transit ASes present in the Internet Routing Table: 621
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 519932386
Equivalent to 30 /8s, 253 /16s and 137 /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: 136137
Total ARIN prefixes after maximum aggregation: 69761
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 108202
Unique aggregates announced from the ARIN address blocks: 41495
ARIN Region origin ASes present in the Internet Routing Table: 13719
ARIN Prefixes per ASN: 7.89
ARIN Region origin ASes announcing only one prefix: 5277
ARIN Region transit ASes present in the Internet Routing Table: 1385
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 731273761
Equivalent to 43 /8s, 150 /16s and 90 /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: 76785
Total RIPE prefixes after maximum aggregation: 43184
RIPE Deaggregation factor: 1.78
Prefixes being announced from the RIPE address blocks: 69691
Unique aggregates announced from the RIPE address blocks: 44110
RIPE Region origin ASes present in the Internet Routing Table: 14495
RIPE Prefixes per ASN: 4.81
RIPE Region origin ASes announcing only one prefix: 7430
RIPE Region transit ASes present in the Internet Routing Table: 2186
Average RIPE Region AS path length visible: 3.8
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 426416468
Equivalent to 25 /8s, 106 /16s and 153 /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: 28564
Total LACNIC prefixes after maximum aggregation: 6851
LACNIC Deaggregation factor: 4.17
Prefixes being announced from the LACNIC address blocks: 26981
Unique aggregates announced from the LACNIC address blocks: 14027
LACNIC Region origin ASes present in the Internet Routing Table: 1292
LACNIC Prefixes per ASN: 20.88
LACNIC Region origin ASes announcing only one prefix: 400
LACNIC Region transit ASes present in the Internet Routing Table: 230
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 73223432
Equivalent to 4 /8s, 93 /16s and 77 /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: 7321
Total AfriNIC prefixes after maximum aggregation: 1869
AfriNIC Deaggregation factor: 3.92
Prefixes being announced from the AfriNIC address blocks: 5615
Unique aggregates announced from the AfriNIC address blocks: 1683
AfriNIC Region origin ASes present in the Internet Routing Table: 365
AfriNIC Prefixes per ASN: 15.38
AfriNIC Region origin ASes announcing only one prefix: 108
AfriNIC Region transit ASes present in the Internet Routing Table: 84
Average AfriNIC Region AS path length visible: 3.9
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC addresses announced to Internet: 17854208
Equivalent to 1 /8s, 16 /16s and 111 /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 1211 232 104 TPG Internet Pty Ltd
17974 1059 281 18 PT TELEKOMUNIKASI INDONESIA
9583 993 73 484 Sify Limited
24560 900 305 169 Bharti Airtel Ltd.
4134 850 21191 403 CHINANET-BACKBONE
9829 791 681 34 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 1783 699 130 AppliedTheory Corporation
20115 1624 1508 649 Charter Communications
7018 1517 5727 961 AT&T WorldNet Services
2386 1279 551 918 AT&T Data Communications Serv
6478 1248 257 99 AT&T Worldnet Services
3356 1209 10871 406 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 420 133 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 1592 2963 240 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 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 1262 445 10 TEDATA
24863 712 147 39 LINKdotNET AS number
36992 643 278 184 Etisalat MISR
3741 270 852 231 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 1783 699 130 AppliedTheory Corporation
4766 1690 8421 478 Korea Telecom (KIX)
20115 1624 1508 649 Charter Communications
8151 1592 2963 240 Uninet S.A. de C.V.
7018 1517 5727 961 AT&T WorldNet Services
17488 1316 140 123 Hathway IP Over Cable Interne
4755 1304 293 149 Videsh Sanchar Nigam Ltd. Aut
2386 1279 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 3844 3439 Time Warner Telecom
1785 1783 1653 AppliedTheory Corporation
8151 1592 1352 Uninet S.A. de C.V.
8452 1262 1252 TEDATA
4766 1690 1212 Korea Telecom (KIX)
17488 1316 1193 Hathway IP Over Cable Interne
4755 1304 1155 Videsh Sanchar Nigam Ltd. Aut
6478 1248 1149 AT&T Worldnet Services
7545 1211 1107 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
41.202.96.0/19 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
41.223.196.0/24 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 /8:20 /9:10 /10:26 /11:67 /12:194
/13:401 /14:689 /15:1271 /16:11091 /17:5387 /18:9108
/19:18595 /20:23013 /21:22897 /22:29670 /23:29522 /24:170248
/25:347 /26:520 /27:219 /28:343 /29:163 /30:334
/31:0 /32:244
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 1783 AppliedTheory Corporation
8452 1140 1262 TEDATA
17488 1063 1316 Hathway IP Over Cable Interne
11492 1062 1146 Cable One
18566 1040 1059 Covad Communications
10620 958 1042 TVCABLE BOGOTA
7018 922 1517 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 12:2015 13:10 14:1
15:23 16:3 17:8 20:21 24:1464 27:99
31:1 32:137 33:12 38:672 40:98 41:2469
44:3 47:26 52:6 55:8 56:2 57:36
58:725 59:498 60:434 61:1076 62:1084 63:1985
64:3872 65:2364 66:4249 67:1872 68:1128 69:2865
70:711 71:258 72:1869 73:2 74:2309 75:254
76:309 77:875 78:636 79:424 80:1028 81:806
82:507 83:463 84:728 85:1089 86:473 87:803
88:335 89:1719 90:88 91:2792 92:499 93:1124
94:1429 95:605 96:280 97:319 98:575 99:28
108:32 109:480 110:353 111:505 112:262 113:287
114:402 115:556 116:1038 117:648 118:442 119:919
120:143 121:726 122:1432 123:899 124:1128 125:1294
128:211 129:211 130:194 131:558 132:246 133:17
134:194 135:45 136:228 137:173 138:254 139:104
140:384 141:135 142:354 143:389 144:476 145:53
146:428 147:166 148:613 149:288 150:153 151:169
152:261 153:167 154:2 155:325 156:155 157:326
158:107 159:375 160:313 161:185 162:262 163:179
164:407 165:346 166:477 167:395 168:785 169:161
170:705 171:51 172:2 173:739 174:646 175:103
176:1 178:113 180:477 182:59 183:255 184:77
186:383 187:345 188:1373 189:782 190:3686 192:5784
193:4718 194:3420 195:2930 196:1211 197:1 198:3585
199:3445 200:5385 201:1515 202:8142 203:8318 204:4059
205:2336 206:2537 207:3037 208:3899 209:3420 210:2515
211:1264 212:1802 213:1750 214:658 215:70 216:4650
217:1562 218:493 219:400 220:1109 221:401 222:334
223:1
End of report