Routing Table Report 00:00 GMT Fri 27 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: 309556
Prefixes after maximum aggregation: 142561
Deaggregation factor: 2.17
Unique aggregates announced to Internet: 100923
Total ASes present in the Internet Routing Table: 32830
Prefixes per ASN: 9.43
Origin-only ASes present in the Internet Routing Table: 28470
Origin ASes announcing only one prefix: 13851
Transit ASes present in the Internet Routing Table: 4360
Transit-only ASes present in the Internet Routing Table: 104
Average AS path length visible in the Internet Routing Table: 4.7
Max AS path length visible: 41
Max AS path prepend of ASN (22394) 36
Prefixes from unregistered ASNs in the Routing Table: 793
Unregistered ASNs in the Routing Table: 190
Number of 32-bit ASNs allocated by the RIRs: 336
Prefixes from 32-bit ASNs in the Routing Table: 287
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 207
Number of addresses announced to Internet: 1218921810
Equivalent to 72 /8s, 167 /16s and 69 /24s
Percentage of available address space announced: 32.9
Percentage of allocated address space announced: 37.3
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: 149589
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 73497
Total APNIC prefixes after maximum aggregation: 25435
APNIC Deaggregation factor: 2.89
Prefixes being announced from the APNIC address blocks: 70126
Unique aggregates announced from the APNIC address blocks: 20579
APNIC Region origin ASes present in the Internet Routing Table: 3870
APNIC Prefixes per ASN: 18.12
APNIC Region origin ASes announcing only one prefix: 1060
APNIC Region transit ASes present in the Internet Routing Table: 600
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 223972352
Equivalent to 13 /8s, 89 /16s and 140 /24s
Percentage of available APNIC address space announced: 38.1
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: 130198
Total ARIN prefixes after maximum aggregation: 67641
ARIN Deaggregation factor: 1.92
Prefixes being announced from the ARIN address blocks: 104055
Unique aggregates announced from the ARIN address blocks: 24896
ARIN Region origin ASes present in the Internet Routing Table: 13399
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5174
ARIN Region transit ASes present in the Internet Routing Table: 1364
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 41
Number of ARIN addresses announced to Internet: 473262369
Equivalent to 28 /8s, 53 /16s and 105 /24s
Percentage of available ARIN address space announced: 41.5
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: 72256
Total RIPE prefixes after maximum aggregation: 41139
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 65411
Unique aggregates announced from the RIPE address blocks: 19812
RIPE Region origin ASes present in the Internet Routing Table: 13821
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7142
RIPE Region transit ASes present in the Internet Routing Table: 2073
Average RIPE Region AS path length visible: 4.9
Max RIPE Region AS path length visible: 21
Number of RIPE addresses announced to Internet: 105575564
Equivalent to 6 /8s, 74 /16s and 244 /24s
Percentage of available RIPE address space announced: 19.7
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: 27185
Total LACNIC prefixes after maximum aggregation: 6478
LACNIC Deaggregation factor: 4.20
Prefixes being announced from the LACNIC address blocks: 25502
Unique aggregates announced from the LACNIC address blocks: 13682
LACNIC Region origin ASes present in the Internet Routing Table: 1216
LACNIC Prefixes per ASN: 20.97
LACNIC Region origin ASes announcing only one prefix: 383
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: 24
Number of LACNIC addresses announced to Internet: 68299024
Equivalent to 4 /8s, 18 /16s and 41 /24s
Percentage of available LACNIC address space announced: 67.8
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: 1549
AfriNIC Deaggregation factor: 3.79
Prefixes being announced from the AfriNIC address blocks: 4256
Unique aggregates announced from the AfriNIC address blocks: 1323
AfriNIC Region origin ASes present in the Internet Routing Table: 331
AfriNIC Prefixes per ASN: 12.86
AfriNIC Region origin ASes announcing only one prefix: 92
AfriNIC Region transit ASes present in the Internet Routing Table: 70
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 12902912
Equivalent to 0 /8s, 196 /16s and 226 /24s
Percentage of available AfriNIC address space announced: 38.5
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 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 1009 75 497 Sify Limited
18101 983 204 35 Reliance Infocom Ltd Internet
4134 955 19459 395 CHINANET-BACKBONE
7545 912 198 99 TPG Internet Pty Ltd
17974 862 265 60 PT TELEKOMUNIKASI INDONESIA
9829 843 662 24 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 4241 3876 310 bellsouth.net, inc.
4323 3751 1069 399 Time Warner Telecom
20115 2130 1485 664 Charter Communications
1785 1780 714 136 AppliedTheory Corporation
7018 1593 5798 1035 AT&T WorldNet Services
2386 1296 616 940 AT&T Data Communications Serv
3356 1237 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 514 98 207 Evolva Telecom
9198 471 138 12 Kazakhtelecom Corporate Sales
35805 466 40 5 United Telecom AS
3292 448 1906 390 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
3301 376 1428 304 TeliaNet Sweden
8866 374 110 23 Bulgarian Telecommunication C
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 1579 2898 229 Uninet S.A. de C.V.
28573 999 671 81 Types of queries are: POCs, o
10620 996 223 142 TVCABLE BOGOTA
7303 664 349 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 1023 188 7 TEDATA
24863 753 130 46 LINKdotNET AS number
3741 273 857 233 The Internet Solution
2018 190 188 118 TENET-1
6713 175 167 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 4241 3876 310 bellsouth.net, inc.
4323 3751 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 1593 5798 1035 AT&T WorldNet Services
8151 1579 2898 229 Uninet S.A. de C.V.
17488 1447 143 133 Hathway IP Over Cable Interne
2386 1296 616 940 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 3751 3352 Time Warner Telecom
1785 1780 1644 AppliedTheory Corporation
20115 2130 1466 Charter Communications
8151 1579 1350 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 /14:641 /15:1227 /16:10756 /17:5074 /18:8679
/19:18057 /20:21724 /21:21813 /22:28095 /23:28049 /24:160667
/25:743 /26:984 /27:395 /28:449 /29:756 /30:496
/31:3 /32:278
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2776 4241 bellsouth.net, inc.
4323 2367 3751 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 1593 AT&T WorldNet Services
8452 921 1023 TEDATA
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
2:1 4:14 8:238 12:2069 13:8 15:22
16:3 17:5 20:36 24:1308 32:151 34:2
38:622 40:99 41:1782 43:1 44:2 46:1
47:21 52:6 55:2 56:2 57:36 58:641
59:612 60:443 61:983 62:975 63:2016 64:3717
65:2370 66:4132 67:1789 68:1025 69:2824 70:630
71:170 72:1774 73:2 74:2020 75:199 76:355
77:856 78:607 79:390 80:953 81:816 82:514
83:454 84:537 85:1020 86:394 87:697 88:439
89:1604 90:56 91:2667 92:448 93:1164 94:1330
95:833 96:200 97:277 98:430 99:27 109:170
110:275 111:463 112:154 113:179 114:285 115:378
116:1091 117:580 118:368 119:802 120:139 121:710
122:1305 123:795 124:1060 125:1366 128:215 129:204
130:134 131:453 132:82 133:16 134:187 135:41
136:232 137:166 138:237 139:95 140:462 141:122
142:382 143:339 144:386 145:52 146:392 147:172
148:558 149:192 150:148 151:172 152:220 153:161
154:2 155:273 156:166 157:315 158:97 159:360
160:294 161:175 162:277 163:163 164:316 165:469
166:490 167:391 168:754 169:159 170:589 171:42
172:1 173:394 174:404 180:202 183:138 184:1
186:186 187:201 188:1352 189:693 190:3292 192:5775
193:4334 194:3394 195:2880 196:1181 198:3571 199:3387
200:5281 201:1453 202:8077 203:8295 204:3984 205:2168
206:2419 207:3047 208:3982 209:3421 210:2546 211:1182
212:1707 213:1651 214:245 215:57 216:4484 217:1364
218:480 219:450 220:1140 221:448 222:307
End of report