Routing Table Report 00:00 GMT Sun 20 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: 304435
Prefixes after maximum aggregation: 140583
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 147782
Total ASes present in the Internet Routing Table: 32267
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 28007
Origin ASes announcing only one prefix: 13651
Transit ASes present in the Internet Routing Table: 4260
Transit-only ASes present in the Internet Routing Table: 107
Average AS path length visible in the Internet Routing Table: 4.6
Max AS path length visible: 26
Max AS path prepend of ASN (12026) 22
Prefixes from unregistered ASNs in the Routing Table: 484
Unregistered ASNs in the Routing Table: 142
Number of 32-bit ASNs allocated by the RIRs: 276
Prefixes from 32-bit ASNs in the Routing Table: 132
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 229
Number of addresses announced to Internet: 2107803548
Equivalent to 125 /8s, 162 /16s and 135 /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: 78.9
Total number of prefixes smaller than registry allocations: 147356
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 72648
Total APNIC prefixes after maximum aggregation: 25223
APNIC Deaggregation factor: 2.88
Prefixes being announced from the APNIC address blocks: 68913
Unique aggregates announced from the APNIC address blocks: 30186
APNIC Region origin ASes present in the Internet Routing Table: 3787
APNIC Prefixes per ASN: 18.20
APNIC Region origin ASes announcing only one prefix: 1039
APNIC Region transit ASes present in the Internet Routing Table: 583
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 22
Number of APNIC addresses announced to Internet: 460416256
Equivalent to 27 /8s, 113 /16s and 101 /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: 126942
Total ARIN prefixes after maximum aggregation: 67018
ARIN Deaggregation factor: 1.89
Prefixes being announced from the ARIN address blocks: 100997
Unique aggregates announced from the ARIN address blocks: 38322
ARIN Region origin ASes present in the Internet Routing Table: 13259
ARIN Prefixes per ASN: 7.62
ARIN Region origin ASes announcing only one prefix: 5127
ARIN Region transit ASes present in the Internet Routing Table: 1315
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 26
Number of ARIN addresses announced to Internet: 705463429
Equivalent to 42 /8s, 12 /16s and 132 /24s
Percentage of available ARIN address space announced: 61.8
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: 70624
Total RIPE prefixes after maximum aggregation: 40306
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 64342
Unique aggregates announced from the RIPE address blocks: 41617
RIPE Region origin ASes present in the Internet Routing Table: 13520
RIPE Prefixes per ASN: 4.76
RIPE Region origin ASes announcing only one prefix: 7020
RIPE Region transit ASes present in the Internet Routing Table: 2047
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 399740466
Equivalent to 23 /8s, 211 /16s and 142 /24s
Percentage of available RIPE address space announced: 74.5
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: 27964
Total LACNIC prefixes after maximum aggregation: 6217
LACNIC Deaggregation factor: 4.50
Prefixes being announced from the LACNIC address blocks: 26285
Unique aggregates announced from the LACNIC address blocks: 13232
LACNIC Region origin ASes present in the Internet Routing Table: 1181
LACNIC Prefixes per ASN: 22.26
LACNIC Region origin ASes announcing only one prefix: 373
LACNIC Region transit ASes present in the Internet Routing Table: 190
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 23
Number of LACNIC addresses announced to Internet: 66557200
Equivalent to 3 /8s, 247 /16s and 149 /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: 5871
Total AfriNIC prefixes after maximum aggregation: 1551
AfriNIC Deaggregation factor: 3.79
Prefixes being announced from the AfriNIC address blocks: 4246
Unique aggregates announced from the AfriNIC address blocks: 1491
AfriNIC Region origin ASes present in the Internet Routing Table: 319
AfriNIC Prefixes per ASN: 13.31
AfriNIC Region origin ASes announcing only one prefix: 92
AfriNIC Region transit ASes present in the Internet Routing Table: 69
Average AfriNIC Region AS path length visible: 4.9
Max AfriNIC Region AS path length visible: 16
Number of AfriNIC addresses announced to Internet: 12380928
Equivalent to 0 /8s, 188 /16s and 235 /24s
Percentage of available AfriNIC address space announced: 36.9
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 1514 136 101 Hathway IP Over Cable Interne
4755 1263 292 142 Videsh Sanchar Nigam Ltd. Aut
9583 1108 87 535 Sify Limited
18101 975 203 33 Reliance Infocom Ltd Internet
4134 951 18168 391 CHINANET-BACKBONE
23577 893 33 745 KRNIC
7545 857 198 100 TPG Internet Pty Ltd
9829 812 625 18 BSNL National Internet Backbo
24560 768 285 160 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 4169 3627 313 bellsouth.net, inc.
20115 2022 1480 665 Charter Communications
4323 1928 1049 387 Time Warner Telecom
1785 1742 714 138 AppliedTheory Corporation
7018 1488 9962 1045 AT&T WorldNet Services
6478 1428 284 260 AT&T Worldnet Services
2386 1318 643 958 AT&T Data Communications Serv
3356 1236 10980 439 Level 3 Communications, LLC
11492 1122 208 12 Cable One
22773 1102 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
702 621 1822 345 UUNET - Commercial IP service
9116 534 296 30 Goldenlines main autonomous s
30890 482 88 194 Evolva Telecom
3292 446 1900 393 TDC Tele Danmark
12479 426 578 6 Uni2 Autonomous System
35805 392 40 5 United Telecom AS
3301 379 1412 310 TeliaNet Sweden
9198 372 138 12 Kazakhtelecom Corporate Sales
8866 358 110 23 Bulgarian Telecommunication C
3320 354 7067 303 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 2315 339 92 Telecom Argentina Stet-France
8151 1475 2899 242 Uninet S.A. de C.V.
10620 1012 226 96 TVCABLE BOGOTA
28573 713 622 62 Types of queries are: POCs, o
22047 542 302 14 Types of queries are: POCs, o
11830 476 310 61 Instituto Costarricense de El
7738 446 862 30 Telecomunicacoes da Bahia S.A
11172 440 99 71 Alestra
6471 423 96 31 ENTEL CHILE S.A.
14117 418 29 11 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 978 188 7 TEDATA
24863 935 96 61 LINKdotNET AS number
3741 272 856 234 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
33776 123 7 11 Starcomms Nigeria Limited
5536 122 8 13 Internet Egypt Network
5713 116 508 67 Telkom SA Ltd
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 4169 3627 313 bellsouth.net, inc.
7303 2315 339 92 Telecom Argentina Stet-France
20115 2022 1480 665 Charter Communications
4323 1928 1049 387 Time Warner Telecom
1785 1742 714 138 AppliedTheory Corporation
4766 1590 6995 447 Korea Telecom (KIX)
17488 1514 136 101 Hathway IP Over Cable Interne
7018 1488 9962 1045 AT&T WorldNet Services
8151 1475 2899 242 Uninet S.A. de C.V.
6478 1428 284 260 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 2315 2223 Telecom Argentina Stet-France
1785 1742 1604 AppliedTheory Corporation
4323 1928 1541 Time Warner Telecom
17488 1514 1413 Hathway IP Over Cable Interne
20115 2022 1357 Charter Communications
8151 1475 1233 Uninet S.A. de C.V.
6478 1428 1168 AT&T Worldnet Services
4766 1590 1143 Korea Telecom (KIX)
4755 1263 1121 Videsh Sanchar Nigam Ltd. Aut
11492 1122 1110 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<<
41.223.189.0/24 26452 Local Communications Networks
43.245.0.0/16 7502 Internetwork Kyoto
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
63.140.213.0/24 22555 Universal Talkware Corporatio
63.143.251.0/24 22555 Universal Talkware Corporatio
64.31.32.0/19 11955 ServiceCo LLC - Road Runner
64.72.112.0/20 19166 Allied Riser Communications,
64.247.160.0/20 10937 Island Internet Services
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 /10:24 /11:63 /12:178
/13:358 /14:629 /15:1203 /16:10695 /17:4928 /18:8509
/19:17679 /20:21216 /21:21243 /22:28234 /23:27307 /24:157446
/25:804 /26:1024 /27:504 /28:471 /29:737 /30:833
/31:3 /32:317
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2700 4169 bellsouth.net, inc.
7303 1796 2315 Telecom Argentina Stet-France
17488 1269 1514 Hathway IP Over Cable Interne
4766 1264 1590 Korea Telecom (KIX)
1785 1209 1742 AppliedTheory Corporation
11492 1050 1122 Cable One
18566 1043 1062 Covad Communications
20115 1032 2022 Charter Communications
4323 969 1928 Time Warner Telecom
9583 960 1108 Sify Limited
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:13 8:228 12:2157 13:7 15:21 16:3
17:5 20:36 24:1174 32:151 34:2 38:600
40:97 41:1715 43:1 44:2 47:13 52:6
55:2 56:2 57:38 58:611 59:637 60:460
61:1073 62:1085 63:2030 64:3643 65:2401 66:3453
67:1791 68:995 69:2751 70:569 71:168 72:1674
73:2 74:1756 75:182 76:323 77:875 78:601
79:384 80:923 81:807 82:553 83:445 84:532
85:1029 86:397 87:689 88:386 89:1519 90:55
91:2582 92:406 93:1234 94:1178 95:1103 96:166
97:267 98:288 99:30 109:3 110:203 111:438
112:131 113:150 114:258 115:339 116:1127 117:565
118:328 119:784 120:123 121:777 122:1279 123:767
124:1046 125:1366 128:223 129:217 130:174 131:423
132:75 133:10 134:174 135:42 136:241 137:164
138:173 139:96 140:431 141:121 142:383 143:338
144:376 145:49 146:389 147:166 148:528 149:292
150:208 151:187 152:215 153:162 154:2 155:278
156:165 157:308 158:112 159:354 160:291 161:164
162:271 163:165 164:276 165:521 166:473 167:372
168:686 169:166 170:503 171:42 172:2 173:413
174:332 175:1 178:1 180:21 182:1 186:154
187:195 188:1004 189:681 190:3443 192:5800 193:4407
194:3411 195:2901 196:1137 198:3563 199:3354 200:5451
201:1455 202:7995 203:8291 204:3901 205:2300 206:2404
207:2725 208:3959 209:3412 210:2568 211:1155 212:1675
213:1670 214:178 215:33 216:4324 217:1319 218:415
219:482 220:1135 221:442 222:320
End of report