Routing Table Report 00:00 GMT Sun 13 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: 302644
Prefixes after maximum aggregation: 140423
Deaggregation factor: 2.16
Unique aggregates announced to Internet: 99637
Total ASes present in the Internet Routing Table: 32195
Prefixes per ASN: 9.40
Origin-only ASes present in the Internet Routing Table: 27903
Origin ASes announcing only one prefix: 13622
Transit ASes present in the Internet Routing Table: 4292
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 25
Max AS path prepend of ASN (31759) 22
Prefixes from unregistered ASNs in the Routing Table: 483
Unregistered ASNs in the Routing Table: 141
Number of 32-bit ASNs allocated by the RIRs: 269
Prefixes from 32-bit ASNs in the Routing Table: 126
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 221
Number of addresses announced to Internet: 1185026310
Equivalent to 70 /8s, 162 /16s and 17 /24s
Percentage of available address space announced: 32.0
Percentage of allocated address space announced: 36.6
Percentage of available address space allocated: 87.3
Percentage of address space in use by end-sites: 78.8
Total number of prefixes smaller than registry allocations: 146537
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 71810
Total APNIC prefixes after maximum aggregation: 25196
APNIC Deaggregation factor: 2.85
Prefixes being announced from the APNIC address blocks: 68161
Unique aggregates announced from the APNIC address blocks: 20521
APNIC Region origin ASes present in the Internet Routing Table: 3775
APNIC Prefixes per ASN: 18.06
APNIC Region origin ASes announcing only one prefix: 1038
APNIC Region transit ASes present in the Internet Routing Table: 590
Average APNIC Region AS path length visible: 4.9
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 211644928
Equivalent to 12 /8s, 157 /16s and 114 /24s
Percentage of available APNIC address space announced: 36.0
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: 126800
Total ARIN prefixes after maximum aggregation: 66973
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 100908
Unique aggregates announced from the ARIN address blocks: 24735
ARIN Region origin ASes present in the Internet Routing Table: 13243
ARIN Prefixes per ASN: 7.62
ARIN Region origin ASes announcing only one prefix: 5117
ARIN Region transit ASes present in the Internet Routing Table: 1333
Average ARIN Region AS path length visible: 4.0
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 454719361
Equivalent to 27 /8s, 26 /16s and 119 /24s
Percentage of available ARIN address space announced: 39.9
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: 69535
Total RIPE prefixes after maximum aggregation: 40192
RIPE Deaggregation factor: 1.73
Prefixes being announced from the RIPE address blocks: 63392
Unique aggregates announced from the RIPE address blocks: 19504
RIPE Region origin ASes present in the Internet Routing Table: 13476
RIPE Prefixes per ASN: 4.70
RIPE Region origin ASes announcing only one prefix: 7000
RIPE Region transit ASes present in the Internet Routing Table: 2044
Average RIPE Region AS path length visible: 4.6
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 105489568
Equivalent to 6 /8s, 73 /16s and 164 /24s
Percentage of available RIPE address space announced: 21.0
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 25/8, 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: 28017
Total LACNIC prefixes after maximum aggregation: 6231
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 26345
Unique aggregates announced from the LACNIC address blocks: 13237
LACNIC Region origin ASes present in the Internet Routing Table: 1180
LACNIC Prefixes per ASN: 22.33
LACNIC Region origin ASes announcing only one prefix: 374
LACNIC Region transit ASes present in the Internet Routing Table: 194
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 22
Number of LACNIC addresses announced to Internet: 66355728
Equivalent to 3 /8s, 244 /16s and 130 /24s
Percentage of available LACNIC address space announced: 65.9
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: 6091
Total AfriNIC prefixes after maximum aggregation: 1567
AfriNIC Deaggregation factor: 3.89
Prefixes being announced from the AfriNIC address blocks: 4444
Unique aggregates announced from the AfriNIC address blocks: 1381
AfriNIC Region origin ASes present in the Internet Routing Table: 318
AfriNIC Prefixes per ASN: 13.97
AfriNIC Region origin ASes announcing only one prefix: 93
AfriNIC Region transit ASes present in the Internet Routing Table: 70
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 18
Number of AfriNIC addresses announced to Internet: 11897600
Equivalent to 0 /8s, 181 /16s and 139 /24s
Percentage of available AfriNIC address space announced: 35.5
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 1566 6982 427 Korea Telecom (KIX)
17488 1545 137 103 Hathway IP Over Cable Interne
4755 1257 292 142 Videsh Sanchar Nigam Ltd. Aut
9583 1107 87 535 Sify Limited
18101 971 201 32 Reliance Infocom Ltd Internet
4134 949 18167 389 CHINANET-BACKBONE
23577 896 33 754 KRNIC
7545 842 198 99 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
24560 756 284 161 Bharti Airtel Ltd.
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 4172 3626 313 bellsouth.net, inc.
20115 1984 1480 665 Charter Communications
4323 1924 1049 387 Time Warner Telecom
1785 1740 714 138 AppliedTheory Corporation
7018 1485 5913 1047 AT&T WorldNet Services
6478 1405 282 249 AT&T Worldnet Services
2386 1292 641 946 AT&T Data Communications Serv
3356 1232 10979 437 Level 3 Communications, LLC
11492 1120 208 12 Cable One
22773 1099 2604 66 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
702 622 1822 346 UUNET - Commercial IP service
30890 490 92 200 Evolva Telecom
3292 448 1901 395 TDC Tele Danmark
12479 426 578 6 Uni2 Autonomous System
35805 386 40 5 United Telecom AS
3301 379 1412 309 TeliaNet Sweden
9198 366 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 353 7067 302 Deutsche Telekom AG
3215 347 3121 111 France Telecom Transpac
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 2261 337 91 Telecom Argentina Stet-France
8151 1495 2899 244 Uninet S.A. de C.V.
10620 1013 226 97 TVCABLE BOGOTA
28573 708 620 61 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 477 310 58 Instituto Costarricense de El
7738 446 862 30 Telecomunicacoes da Bahia S.A
11172 439 99 70 Alestra
6471 421 96 31 ENTEL CHILE S.A.
16735 420 124 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 992 188 7 TEDATA
24863 926 96 57 LINKdotNET AS number
20858 296 34 6 EgyNet
3741 275 856 236 The Internet Solution
2018 207 180 142 TENET-1
6713 175 166 16 Itissalat Al-MAGHRIB
29571 139 14 6 Ci Telecom Autonomous system
24835 123 46 9 RAYA Telecom - Egypt
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
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 4172 3626 313 bellsouth.net, inc.
7303 2261 337 91 Telecom Argentina Stet-France
20115 1984 1480 665 Charter Communications
4323 1924 1049 387 Time Warner Telecom
1785 1740 714 138 AppliedTheory Corporation
4766 1566 6982 427 Korea Telecom (KIX)
17488 1545 137 103 Hathway IP Over Cable Interne
8151 1495 2899 244 Uninet S.A. de C.V.
7018 1485 5913 1047 AT&T WorldNet Services
6478 1405 282 249 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
7303 2261 2170 Telecom Argentina Stet-France
1785 1740 1602 AppliedTheory Corporation
4323 1924 1537 Time Warner Telecom
17488 1545 1442 Hathway IP Over Cable Interne
20115 1984 1319 Charter Communications
8151 1495 1251 Uninet S.A. de C.V.
6478 1405 1156 AT&T Worldnet Services
4766 1566 1139 Korea Telecom (KIX)
4755 1257 1115 Videsh Sanchar Nigam Ltd. Aut
11492 1120 1108 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
41.223.92.0/22 36936 >>UNKNOWN<<
41.223.176.0/22 36981 >>UNKNOWN<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
43.245.96.0/20 7502 Internetwork Kyoto
43.245.112.0/20 7502 Internetwork Kyoto
43.245.192.0/20 7502 Internetwork Kyoto
43.245.208.0/20 7502 Internetwork Kyoto
43.245.224.0/20 7502 Internetwork Kyoto
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 /8:19 /9:10 /10:25 /11:62 /12:177
/13:353 /14:631 /15:1199 /16:10682 /17:4916 /18:8487
/19:17588 /20:20909 /21:20956 /22:27871 /23:27133 /24:156977
/25:815 /26:1024 /27:496 /28:457 /29:709 /30:831
/31:3 /32:314
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2704 4172 bellsouth.net, inc.
7303 1758 2261 Telecom Argentina Stet-France
17488 1294 1545 Hathway IP Over Cable Interne
4766 1245 1566 Korea Telecom (KIX)
1785 1206 1740 AppliedTheory Corporation
11492 1047 1120 Cable One
18566 1043 1062 Covad Communications
20115 994 1984 Charter Communications
4323 969 1924 Time Warner Telecom
9583 959 1107 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:215 12:2154 13:7 15:21 16:3
17:5 20:36 24:1164 32:151 34:2 38:601
40:97 41:1696 43:1 44:2 47:24 52:6
55:2 56:2 57:37 58:606 59:644 60:459
61:1072 62:1136 63:2027 64:3636 65:2399 66:3454
67:1761 68:982 69:2747 70:568 71:167 72:1702
73:2 74:1743 75:182 76:321 77:876 78:586
79:382 80:933 81:811 82:560 83:436 84:644
85:1039 86:388 87:683 88:382 89:1473 90:49
91:2545 92:399 93:1152 94:1172 95:1083 96:167
97:269 98:263 99:30 109:3 110:191 111:435
112:131 113:154 114:245 115:336 116:1146 117:575
118:327 119:774 120:122 121:774 122:1263 123:767
124:1049 125:1359 128:222 129:215 130:174 131:421
132:75 133:9 134:173 135:42 136:223 137:163
138:172 139:96 140:426 141:125 142:383 143:343
144:377 145:49 146:388 147:165 148:531 149:291
150:207 151:188 152:212 153:162 154:2 155:285
156:168 157:307 158:112 159:351 160:291 161:164
162:269 163:164 164:276 165:521 166:474 167:367
168:708 169:168 170:502 171:42 172:2 173:408
174:310 175:1 178:1 180:23 182:1 186:154
187:197 188:961 189:708 190:3414 192:5809 193:4383
194:3410 195:2898 196:1139 198:3561 199:3356 200:5514
201:1454 202:7818 203:8276 204:3892 205:2296 206:2400
207:2723 208:3957 209:3411 210:2559 211:1135 212:1625
213:1722 214:175 215:33 216:4332 217:1322 218:416
219:469 220:1124 221:443 222:322
End of report