Routing Table Report 00:00 GMT Mon 14 Dec, 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: 311638
Prefixes after maximum aggregation: 143091
Deaggregation factor: 2.18
Unique aggregates announced to Internet: 150796
Total ASes present in the Internet Routing Table: 32964
Prefixes per ASN: 9.45
Origin-only ASes present in the Internet Routing Table: 28530
Origin ASes announcing only one prefix: 13923
Transit ASes present in the Internet Routing Table: 4434
Transit-only ASes present in the Internet Routing Table: 103
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 38
Max AS path prepend of ASN (48687) 25
Prefixes from unregistered ASNs in the Routing Table: 1086
Unregistered ASNs in the Routing Table: 164
Number of 32-bit ASNs allocated by the RIRs: 353
Prefixes from 32-bit ASNs in the Routing Table: 310
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2162178287
Equivalent to 128 /8s, 224 /16s and 56 /24s
Percentage of available address space announced: 58.3
Percentage of allocated address space announced: 66.1
Percentage of available address space allocated: 88.2
Percentage of address space in use by end-sites: 80.3
Total number of prefixes smaller than registry allocations: 150378
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 74525
Total APNIC prefixes after maximum aggregation: 25530
APNIC Deaggregation factor: 2.92
Prefixes being announced from the APNIC address blocks: 71303
Unique aggregates announced from the APNIC address blocks: 30985
APNIC Region origin ASes present in the Internet Routing Table: 3889
APNIC Prefixes per ASN: 18.33
APNIC Region origin ASes announcing only one prefix: 1064
APNIC Region transit ASes present in the Internet Routing Table: 605
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 24
Number of APNIC addresses announced to Internet: 483925760
Equivalent to 28 /8s, 216 /16s and 31 /24s
Percentage of available APNIC address space announced: 80.1
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, 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: 130263
Total ARIN prefixes after maximum aggregation: 67658
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 104573
Unique aggregates announced from the ARIN address blocks: 38775
ARIN Region origin ASes present in the Internet Routing Table: 13419
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5188
ARIN Region transit ASes present in the Internet Routing Table: 1355
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 733669409
Equivalent to 43 /8s, 186 /16s and 232 /24s
Percentage of available ARIN address space announced: 64.3
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: 72427
Total RIPE prefixes after maximum aggregation: 41478
RIPE Deaggregation factor: 1.75
Prefixes being announced from the RIPE address blocks: 65781
Unique aggregates announced from the RIPE address blocks: 42832
RIPE Region origin ASes present in the Internet Routing Table: 13914
RIPE Prefixes per ASN: 4.73
RIPE Region origin ASes announcing only one prefix: 7201
RIPE Region transit ASes present in the Internet Routing Table: 2149
Average RIPE Region AS path length visible: 4.1
Max RIPE Region AS path length visible: 38
Number of RIPE addresses announced to Internet: 407801257
Equivalent to 24 /8s, 78 /16s and 141 /24s
Percentage of available RIPE address space announced: 76.0
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 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: 27675
Total LACNIC prefixes after maximum aggregation: 6518
LACNIC Deaggregation factor: 4.25
Prefixes being announced from the LACNIC address blocks: 25985
Unique aggregates announced from the LACNIC address blocks: 13783
LACNIC Region origin ASes present in the Internet Routing Table: 1218
LACNIC Prefixes per ASN: 21.33
LACNIC Region origin ASes announcing only one prefix: 378
LACNIC Region transit ASes present in the Internet Routing Table: 199
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 69112592
Equivalent to 4 /8s, 30 /16s and 147 /24s
Percentage of available LACNIC address space announced: 68.7
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: 5852
Total AfriNIC prefixes after maximum aggregation: 1584
AfriNIC Deaggregation factor: 3.69
Prefixes being announced from the AfriNIC address blocks: 4261
Unique aggregates announced from the AfriNIC address blocks: 1525
AfriNIC Region origin ASes present in the Internet Routing Table: 336
AfriNIC Prefixes per ASN: 12.68
AfriNIC Region origin ASes announcing only one prefix: 92
AfriNIC Region transit ASes present in the Internet Routing Table: 72
Average AfriNIC Region AS path length visible: 4.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 14307584
Equivalent to 0 /8s, 218 /16s and 81 /24s
Percentage of available AfriNIC address space announced: 42.6
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 1617 7508 455 Korea Telecom (KIX)
17488 1459 143 132 Hathway IP Over Cable Interne
4755 1278 295 146 Videsh Sanchar Nigam Ltd. Aut
9583 1008 76 501 Sify Limited
18101 993 204 35 Reliance Infocom Ltd Internet
4134 954 19458 393 CHINANET-BACKBONE
7545 917 198 96 TPG Internet Pty Ltd
17974 851 270 58 PT TELEKOMUNIKASI INDONESIA
9829 850 674 22 BSNL National Internet Backbo
24560 811 295 176 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 4228 3893 308 bellsouth.net, inc.
4323 3768 1067 398 Time Warner Telecom
20115 2130 1485 663 Charter Communications
1785 1791 699 135 AppliedTheory Corporation
7018 1586 5798 1028 AT&T WorldNet Services
2386 1291 616 939 AT&T Data Communications Serv
3356 1206 10928 420 Level 3 Communications, LLC
6478 1169 253 330 AT&T Worldnet Services
11492 1145 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 517 98 208 Evolva Telecom
9198 474 202 13 Kazakhtelecom Corporate Sales
35805 465 40 5 United Telecom AS
9116 456 296 30 Goldenlines main autonomous s
3292 450 1903 392 TDC Tele Danmark
702 418 1837 336 UUNET - Commercial IP service
8866 380 110 23 Bulgarian Telecommunication C
8551 379 354 41 Bezeq International
3301 374 1411 303 TeliaNet Sweden
3320 360 7068 306 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 1577 2898 230 Uninet S.A. de C.V.
28573 1014 674 82 Types of queries are: POCs, o
10620 1002 223 136 TVCABLE BOGOTA
7303 666 351 96 Telecom Argentina Stet-France
22047 545 302 14 Types of queries are: POCs, o
11830 473 308 59 Instituto Costarricense de El
7738 453 858 29 Telecomunicacoes da Bahia S.A
11172 446 99 70 Alestra
14117 437 29 11 Telefonica del Sur S.A.
6503 432 163 182 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 946 444 8 TEDATA
24863 709 143 52 LINKdotNET AS number
3741 273 857 233 The Internet Solution
2018 178 196 100 TENET-1
6713 176 167 12 Itissalat Al-MAGHRIB
29571 152 19 9 Ci Telecom Autonomous system
29975 134 506 15 Vodacom
5536 121 8 18 Internet Egypt Network
5713 117 508 67 Telkom SA Ltd
33776 112 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 4228 3893 308 bellsouth.net, inc.
4323 3768 1067 398 Time Warner Telecom
20115 2130 1485 663 Charter Communications
1785 1791 699 135 AppliedTheory Corporation
4766 1617 7508 455 Korea Telecom (KIX)
7018 1586 5798 1028 AT&T WorldNet Services
8151 1577 2898 230 Uninet S.A. de C.V.
17488 1459 143 132 Hathway IP Over Cable Interne
2386 1291 616 939 AT&T Data Communications Serv
4755 1278 295 146 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 3768 3370 Time Warner Telecom
1785 1791 1656 AppliedTheory Corporation
20115 2130 1467 Charter Communications
8151 1577 1347 Uninet S.A. de C.V.
17488 1459 1327 Hathway IP Over Cable Interne
4766 1617 1162 Korea Telecom (KIX)
4755 1278 1132 Videsh Sanchar Nigam Ltd. Aut
11492 1145 1131 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 /8:23 /9:10 /10:25 /11:65 /12:183
/13:384 /14:646 /15:1231 /16:10839 /17:5120 /18:8726
/19:18120 /20:21843 /21:21902 /22:28320 /23:28331 /24:161658
/25:744 /26:1026 /27:414 /28:463 /29:762 /30:518
/31:3 /32:282
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2767 4228 bellsouth.net, inc.
4323 2369 3768 Time Warner Telecom
4766 1269 1617 Korea Telecom (KIX)
1785 1256 1791 AppliedTheory Corporation
17488 1225 1459 Hathway IP Over Cable Interne
20115 1137 2130 Charter Communications
11492 1067 1145 Cable One
18566 1040 1059 Covad Communications
7018 953 1586 AT&T WorldNet Services
10620 907 1002 TVCABLE BOGOTA
Complete listing at http://thyme.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:1 2:1 4:13 8:240 12:2066 13:9
15:22 16:3 17:5 20:37 24:1323 32:151
38:628 40:99 41:1752 43:1 44:3 46:1
47:21 52:6 55:2 56:2 57:36 58:648
59:662 60:445 61:1106 62:980 63:2019 64:3789
65:2380 66:4135 67:1784 68:1044 69:2832 70:686
71:246 72:1894 73:3 74:2040 75:201 76:362
77:864 78:609 79:412 80:947 81:815 82:506
83:450 84:546 85:1023 86:394 87:696 88:420
89:1590 90:65 91:2681 92:452 93:1130 94:1328
95:841 96:185 97:286 98:436 99:24 109:188
110:278 111:498 112:157 113:210 114:294 115:478
116:1091 117:593 118:372 119:805 120:144 121:841
122:1311 123:793 124:1017 125:1349 128:212 129:202
130:134 131:442 132:83 133:16 134:183 135:41
136:228 137:168 138:235 139:93 140:448 141:121
142:376 143:337 144:388 145:53 146:390 147:174
148:567 149:192 150:148 151:173 152:220 153:161
154:2 155:270 156:171 157:318 158:97 159:357
160:299 161:174 162:281 163:162 164:308 165:471
166:490 167:392 168:754 169:158 170:593 171:42
172:1 173:392 174:448 180:205 183:166 184:3
186:234 187:206 188:1079 189:694 190:3423 192:5753
193:4366 194:3407 195:2894 196:1199 198:3562 199:3394
200:5276 201:1479 202:8164 203:8294 204:3986 205:2165
206:2406 207:3047 208:3973 209:3406 210:2565 211:1176
212:1709 213:1685 214:232 215:45 216:4460 217:1373
218:486 219:485 220:1149 221:450 222:300
End of report