Routing Table Report 00:00 GMT Fri 25 Sep, 2009
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: 306453
Prefixes after maximum aggregation: 140681
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 148163
Total ASes present in the Internet Routing Table: 32303
Prefixes per ASN: 9.49
Origin-only ASes present in the Internet Routing Table: 28035
Origin ASes announcing only one prefix: 13669
Transit ASes present in the Internet Routing Table: 4268
Transit-only ASes present in the Internet Routing Table: 106
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 31
Max AS path prepend of ASN (45127) 27
Prefixes from unregistered ASNs in the Routing Table: 492
Unregistered ASNs in the Routing Table: 140
Number of 32-bit ASNs allocated by the RIRs: 281
Prefixes from 32-bit ASNs in the Routing Table: 141
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 238
Number of addresses announced to Internet: 2108436754
Equivalent to 125 /8s, 172 /16s and 49 /24s
Percentage of available address space announced: 56.9
Percentage of allocated address space announced: 64.5
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 79.0
Total number of prefixes smaller than registry allocations: 148892
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 72806
Total APNIC prefixes after maximum aggregation: 25296
APNIC Deaggregation factor: 2.88
Prefixes being announced from the APNIC address blocks: 69077
Unique aggregates announced from the APNIC address blocks: 30272
APNIC Region origin ASes present in the Internet Routing Table: 3798
APNIC Prefixes per ASN: 18.19
APNIC Region origin ASes announcing only one prefix: 1050
APNIC Region transit ASes present in the Internet Routing Table: 585
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 31
Number of APNIC addresses announced to Internet: 460581888
Equivalent to 27 /8s, 115 /16s and 236 /24s
Percentage of available APNIC address space announced: 78.4
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 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, 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,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 128644
Total ARIN prefixes after maximum aggregation: 66923
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 102811
Unique aggregates announced from the ARIN address blocks: 38384
ARIN Region origin ASes present in the Internet Routing Table: 13284
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5146
ARIN Region transit ASes present in the Internet Routing Table: 1321
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 706220165
Equivalent to 42 /8s, 24 /16s and 16 /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, 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, 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: 70486
Total RIPE prefixes after maximum aggregation: 40373
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 64090
Unique aggregates announced from the RIPE address blocks: 41746
RIPE Region origin ASes present in the Internet Routing Table: 13518
RIPE Prefixes per ASN: 4.74
RIPE Region origin ASes announcing only one prefix: 7008
RIPE Region transit ASes present in the Internet Routing Table: 2034
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 399647024
Equivalent to 23 /8s, 210 /16s and 33 /24s
Percentage of available RIPE address space announced: 74.4
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, 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, 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: 28265
Total LACNIC prefixes after maximum aggregation: 6263
LACNIC Deaggregation factor: 4.51
Prefixes being announced from the LACNIC address blocks: 26552
Unique aggregates announced from the LACNIC address blocks: 13271
LACNIC Region origin ASes present in the Internet Routing Table: 1186
LACNIC Prefixes per ASN: 22.39
LACNIC Region origin ASes announcing only one prefix: 373
LACNIC Region transit ASes present in the Internet Routing Table: 196
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 66537224
Equivalent to 3 /8s, 247 /16s and 71 /24s
Percentage of available LACNIC address space announced: 66.1
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: 5858
Total AfriNIC prefixes after maximum aggregation: 1556
AfriNIC Deaggregation factor: 3.76
Prefixes being announced from the AfriNIC address blocks: 4225
Unique aggregates announced from the AfriNIC address blocks: 1525
AfriNIC Region origin ASes present in the Internet Routing Table: 318
AfriNIC Prefixes per ASN: 13.29
AfriNIC Region origin ASes announcing only one prefix: 92
AfriNIC Region transit ASes present in the Internet Routing Table: 67
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 12414720
Equivalent to 0 /8s, 189 /16s and 111 /24s
Percentage of available AfriNIC address space announced: 37.0
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 1590 6995 447 Korea Telecom (KIX)
17488 1512 137 104 Hathway IP Over Cable Interne
4755 1266 292 143 Videsh Sanchar Nigam Ltd. Aut
9583 1111 87 534 Sify Limited
18101 977 204 34 Reliance Infocom Ltd Internet
4134 951 18168 391 CHINANET-BACKBONE
23577 880 33 736 KRNIC
7545 870 198 98 TPG Internet Pty Ltd
9829 809 622 20 BSNL National Internet Backbo
4808 775 1460 174 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 4166 3627 312 bellsouth.net, inc.
4323 3698 1045 385 Time Warner Telecom
20115 1985 1480 661 Charter Communications
1785 1749 714 138 AppliedTheory Corporation
7018 1500 9962 1047 AT&T WorldNet Services
6478 1427 285 255 AT&T Worldnet Services
2386 1323 643 959 AT&T Data Communications Serv
3356 1237 10932 439 Level 3 Communications, LLC
11492 1128 208 12 Cable One
22773 1111 2604 67 Cox Communications, Inc.
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
9116 506 296 30 Goldenlines main autonomous s
30890 493 93 202 Evolva Telecom
3292 446 1900 393 TDC Tele Danmark
702 428 1823 346 UUNET - Commercial IP service
12479 425 578 6 Uni2 Autonomous System
35805 415 40 5 United Telecom AS
3301 380 1412 308 TeliaNet Sweden
9198 371 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 353 7068 304 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
7303 2318 339 90 Telecom Argentina Stet-France
8151 1478 2899 245 Uninet S.A. de C.V.
10620 1015 227 95 TVCABLE BOGOTA
28573 715 622 66 Types of queries are: POCs, o
22047 540 302 14 Types of queries are: POCs, o
11830 476 310 61 Instituto Costarricense de El
7738 445 858 29 Telecomunicacoes da Bahia S.A
11172 441 99 71 Alestra
14117 435 29 11 Telefonica del Sur S.A.
16735 430 124 11 Companhia de Telecomunicacoes
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 948 188 7 TEDATA
24863 939 97 62 LINKdotNET AS number
3741 267 856 229 The Internet Solution
2018 197 187 116 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 123 46 9 RAYA Telecom - Egypt
5536 122 8 13 Internet Egypt Network
5713 117 520 70 Telkom SA Ltd
33776 109 6 14 Starcomms Nigeria Limited
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 4166 3627 312 bellsouth.net, inc.
4323 3698 1045 385 Time Warner Telecom
7303 2318 339 90 Telecom Argentina Stet-France
20115 1985 1480 661 Charter Communications
1785 1749 714 138 AppliedTheory Corporation
4766 1590 6995 447 Korea Telecom (KIX)
17488 1512 137 104 Hathway IP Over Cable Interne
7018 1500 9962 1047 AT&T WorldNet Services
8151 1478 2899 245 Uninet S.A. de C.V.
6478 1427 285 255 AT&T Worldnet Services
Complete listing at http://thyme.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 3698 3313 Time Warner Telecom
7303 2318 2228 Telecom Argentina Stet-France
1785 1749 1611 AppliedTheory Corporation
17488 1512 1408 Hathway IP Over Cable Interne
20115 1985 1324 Charter Communications
8151 1478 1233 Uninet S.A. de C.V.
6478 1427 1172 AT&T Worldnet Services
4766 1590 1143 Korea Telecom (KIX)
4755 1266 1123 Videsh Sanchar Nigam Ltd. Aut
11492 1128 1116 Cable One
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 12.39.159.0/24 7018 AT&T WorldNet Servic
32326 UNALLOCATED 12.40.49.0/24 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
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.248.71/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
2.0.0.0/16 12654 RIPE NCC RIS Project
2.1.0.0/21 12654 RIPE NCC RIS Project
2.1.24.0/24 12654 RIPE NCC RIS Project
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
46.0.0.0/16 12654 RIPE NCC RIS Project
46.1.0.0/21 12654 RIPE NCC RIS Project
46.1.24.0/24 12654 RIPE NCC RIS Project
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
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 /8:23 /9:10 /10:24 /11:63 /12:179
/13:357 /14:629 /15:1206 /16:10697 /17:4928 /18:8499
/19:17717 /20:21210 /21:21336 /22:28324 /23:27450 /24:159096
/25:808 /26:1018 /27:499 /28:474 /29:752 /30:838
/31:3 /32:313
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2698 4166 bellsouth.net, inc.
4323 2359 3698 Time Warner Telecom
7303 1799 2318 Telecom Argentina Stet-France
17488 1266 1512 Hathway IP Over Cable Interne
4766 1264 1590 Korea Telecom (KIX)
1785 1216 1749 AppliedTheory Corporation
11492 1054 1128 Cable One
18566 1043 1062 Covad Communications
20115 995 1985 Charter Communications
9583 963 1111 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:228 12:2161 13:7 15:22
16:3 17:5 20:36 24:1200 32:151 34:2
38:605 40:97 41:1678 43:1 44:2 46:1
47:16 52:6 55:2 56:2 57:38 58:613
59:648 60:460 61:1078 62:1050 63:2032 64:3749
65:2400 66:4140 67:1777 68:976 69:2769 70:571
71:167 72:1689 73:2 74:1953 75:182 76:318
77:884 78:600 79:397 80:931 81:806 82:552
83:439 84:535 85:1035 86:397 87:687 88:389
89:1519 90:58 91:2568 92:406 93:1249 94:1195
95:1103 96:168 97:267 98:302 99:30 109:41
110:205 111:439 112:138 113:151 114:259 115:349
116:1129 117:573 118:325 119:782 120:131 121:784
122:1288 123:777 124:1049 125:1351 128:223 129:217
130:174 131:424 132:75 133:10 134:173 135:42
136:241 137:164 138:177 139:95 140:441 141:121
142:383 143:336 144:341 145:49 146:390 147:171
148:549 149:213 150:209 151:183 152:216 153:155
154:2 155:269 156:165 157:308 158:113 159:354
160:291 161:164 162:270 163:172 164:280 165:522
166:474 167:374 168:789 169:165 170:503 171:43
172:2 173:417 174:342 175:1 178:1 180:27
182:1 186:153 187:193 188:1010 189:691 190:3469
192:5800 193:4300 194:3335 195:2864 196:1131 198:3563
199:3353 200:5562 201:1453 202:8026 203:8279 204:3934
205:2307 206:2454 207:2989 208:3962 209:3503 210:2563
211:1155 212:1673 213:1654 214:178 215:40 216:4438
217:1314 218:417 219:481 220:1130 221:442 222:319
End of report