Routing Table Report 00:00 GMT Sat 28 Nov, 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: 309628
Prefixes after maximum aggregation: 142566
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 150239
Total ASes present in the Internet Routing Table: 32847
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 28469
Origin ASes announcing only one prefix: 13857
Transit ASes present in the Internet Routing Table: 4378
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 4.8
Max AS path length visible: 41
Max AS path prepend of ASN (22394) 36
Prefixes from unregistered ASNs in the Routing Table: 838
Unregistered ASNs in the Routing Table: 196
Number of 32-bit ASNs allocated by the RIRs: 338
Prefixes from 32-bit ASNs in the Routing Table: 288
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 208
Number of addresses announced to Internet: 2154713946
Equivalent to 128 /8s, 110 /16s and 83 /24s
Percentage of available address space announced: 58.1
Percentage of allocated address space announced: 65.9
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 80.2
Total number of prefixes smaller than registry allocations: 149561
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 73463
Total APNIC prefixes after maximum aggregation: 25437
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 70281
Unique aggregates announced from the APNIC address blocks: 30809
APNIC Region origin ASes present in the Internet Routing Table: 3872
APNIC Prefixes per ASN: 18.15
APNIC Region origin ASes announcing only one prefix: 1062
APNIC Region transit ASes present in the Internet Routing Table: 600
Average APNIC Region AS path length visible: 5.4
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 482383616
Equivalent to 28 /8s, 192 /16s and 151 /24s
Percentage of available APNIC address space announced: 79.9
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, 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,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 130171
Total ARIN prefixes after maximum aggregation: 67607
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 104030
Unique aggregates announced from the ARIN address blocks: 38752
ARIN Region origin ASes present in the Internet Routing Table: 13387
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5166
ARIN Region transit ASes present in the Internet Routing Table: 1370
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 41
Number of ARIN addresses announced to Internet: 731757345
Equivalent to 43 /8s, 157 /16s and 187 /24s
Percentage of available ARIN address space announced: 64.1
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: 72363
Total RIPE prefixes after maximum aggregation: 41169
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 65507
Unique aggregates announced from the RIPE address blocks: 42439
RIPE Region origin ASes present in the Internet Routing Table: 13844
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7149
RIPE Region transit ASes present in the Internet Routing Table: 2080
Average RIPE Region AS path length visible: 5.0
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 405755540
Equivalent to 24 /8s, 47 /16s and 86 /24s
Percentage of available RIPE address space announced: 75.6
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, 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: 27222
Total LACNIC prefixes after maximum aggregation: 6482
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 25537
Unique aggregates announced from the LACNIC address blocks: 13691
LACNIC Region origin ASes present in the Internet Routing Table: 1220
LACNIC Prefixes per ASN: 20.93
LACNIC Region origin ASes announcing only one prefix: 385
LACNIC Region transit ASes present in the Internet Routing Table: 205
Average LACNIC Region AS path length visible: 5.1
Max LACNIC Region AS path length visible: 25
Number of LACNIC addresses announced to Internet: 68487696
Equivalent to 4 /8s, 21 /16s and 10 /24s
Percentage of available LACNIC address space announced: 68.0
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: 5861
Total AfriNIC prefixes after maximum aggregation: 1553
AfriNIC Deaggregation factor: 3.77
Prefixes being announced from the AfriNIC address blocks: 4250
Unique aggregates announced from the AfriNIC address blocks: 1436
AfriNIC Region origin ASes present in the Internet Routing Table: 333
AfriNIC Prefixes per ASN: 12.76
AfriNIC Region origin ASes announcing only one prefix: 95
AfriNIC Region transit ASes present in the Internet Routing Table: 72
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 22
Number of AfriNIC addresses announced to Internet: 13325568
Equivalent to 0 /8s, 203 /16s and 85 /24s
Percentage of available AfriNIC address space announced: 39.7
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 1602 7506 455 Korea Telecom (KIX)
17488 1447 143 133 Hathway IP Over Cable Interne
4755 1277 295 147 Videsh Sanchar Nigam Ltd. Aut
9583 1007 75 495 Sify Limited
18101 984 204 35 Reliance Infocom Ltd Internet
4134 955 19459 395 CHINANET-BACKBONE
7545 912 198 99 TPG Internet Pty Ltd
17974 861 265 60 PT TELEKOMUNIKASI INDONESIA
9829 849 665 21 BSNL National Internet Backbo
24560 806 293 175 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 4242 3877 308 bellsouth.net, inc.
4323 3749 1069 399 Time Warner Telecom
20115 2130 1485 664 Charter Communications
1785 1780 714 136 AppliedTheory Corporation
7018 1592 5798 1034 AT&T WorldNet Services
2386 1294 616 938 AT&T Data Communications Serv
3356 1236 10966 445 Level 3 Communications, LLC
6478 1188 251 315 AT&T Worldnet Services
11492 1142 222 14 Cable One
22773 1123 2600 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
30890 515 98 208 Evolva Telecom
9198 471 138 12 Kazakhtelecom Corporate Sales
35805 467 40 5 United Telecom AS
3292 450 1906 392 TDC Tele Danmark
9116 441 296 30 Goldenlines main autonomous s
702 419 1837 337 UUNET - Commercial IP service
8551 379 354 41 Bezeq International
8866 376 110 23 Bulgarian Telecommunication C
3301 375 1427 303 TeliaNet Sweden
3320 358 7067 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
8151 1562 2882 226 Uninet S.A. de C.V.
28573 1005 672 80 Types of queries are: POCs, o
10620 1004 224 138 TVCABLE BOGOTA
7303 665 350 95 Telecom Argentina Stet-France
22047 546 302 14 Types of queries are: POCs, o
11830 475 308 59 Instituto Costarricense de El
7738 453 858 29 Telecomunicacoes da Bahia S.A
11172 445 99 70 Alestra
14117 437 29 11 Telefonica del Sur S.A.
6503 425 162 184 AVANTEL, 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 1020 188 7 TEDATA
24863 753 130 46 LINKdotNET AS number
3741 274 857 234 The Internet Solution
2018 190 188 118 TENET-1
6713 176 167 12 Itissalat Al-MAGHRIB
29975 134 506 15 Vodacom
29571 133 15 8 Ci Telecom Autonomous system
33776 124 7 11 Starcomms Nigeria Limited
5536 121 8 18 Internet Egypt Network
5713 117 508 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 4242 3877 308 bellsouth.net, inc.
4323 3749 1069 399 Time Warner Telecom
20115 2130 1485 664 Charter Communications
1785 1780 714 136 AppliedTheory Corporation
4766 1602 7506 455 Korea Telecom (KIX)
7018 1592 5798 1034 AT&T WorldNet Services
8151 1562 2882 226 Uninet S.A. de C.V.
17488 1447 143 133 Hathway IP Over Cable Interne
2386 1294 616 938 AT&T Data Communications Serv
4755 1277 295 147 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 3749 3350 Time Warner Telecom
1785 1780 1644 AppliedTheory Corporation
20115 2130 1466 Charter Communications
8151 1562 1336 Uninet S.A. de C.V.
17488 1447 1314 Hathway IP Over Cable Interne
4766 1602 1147 Korea Telecom (KIX)
4755 1277 1130 Videsh Sanchar Nigam Ltd. Aut
11492 1142 1128 Cable One
22773 1123 1057 Cox Communications, Inc.
18566 1059 1049 Covad Communications
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<<
41.223.188.0/24 22351 Intelsat
41.223.189.0/24 26452 Local Communications Networks
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 /8:22 /9:10 /10:25 /11:65 /12:181
/13:367 /14:642 /15:1228 /16:10765 /17:5078 /18:8706
/19:18063 /20:21721 /21:21841 /22:28122 /23:28072 /24:160631
/25:741 /26:985 /27:398 /28:433 /29:752 /30:497
/31:3 /32:280
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2777 4242 bellsouth.net, inc.
4323 2365 3749 Time Warner Telecom
4766 1271 1602 Korea Telecom (KIX)
1785 1247 1780 AppliedTheory Corporation
17488 1220 1447 Hathway IP Over Cable Interne
20115 1134 2130 Charter Communications
11492 1064 1142 Cable One
18566 1040 1059 Covad Communications
7018 957 1592 AT&T WorldNet Services
8452 918 1020 TEDATA
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:239 12:2067 13:8 15:22
16:3 17:5 20:36 24:1308 32:151 34:2
38:622 40:99 41:1780 43:1 44:2 46:1
47:20 52:6 55:2 56:2 57:36 58:640
59:612 60:444 61:982 62:971 63:2017 64:3717
65:2369 66:4131 67:1788 68:1025 69:2823 70:630
71:170 72:1773 73:2 74:2020 75:199 76:355
77:858 78:607 79:395 80:953 81:816 82:514
83:459 84:536 85:1020 86:394 87:702 88:443
89:1593 90:63 91:2662 92:451 93:1155 94:1332
95:837 96:201 97:275 98:430 99:27 109:171
110:275 111:466 112:154 113:180 114:283 115:382
116:1092 117:593 118:365 119:802 120:139 121:707
122:1309 123:794 124:1056 125:1364 128:215 129:204
130:134 131:453 132:82 133:16 134:187 135:41
136:232 137:166 138:237 139:95 140:463 141:122
142:382 143:336 144:384 145:52 146:392 147:172
148:559 149:192 150:148 151:172 152:220 153:161
154:2 155:273 156:166 157:315 158:98 159:360
160:294 161:175 162:277 163:159 164:316 165:469
166:490 167:391 168:754 169:159 170:589 171:42
172:1 173:394 174:404 180:202 183:134 184:1
186:186 187:201 188:1355 189:674 190:3300 192:5769
193:4331 194:3392 195:2874 196:1182 198:3578 199:3387
200:5288 201:1457 202:8091 203:8273 204:3982 205:2166
206:2419 207:3044 208:3983 209:3414 210:2539 211:1183
212:1707 213:1655 214:245 215:57 216:4485 217:1369
218:479 219:443 220:1143 221:448 222:300
End of report