Routing Table Report 00:00 GMT Wed 15 Dec, 2010
NB: RouteViews data includes iBGP information from some ASNs.
Treat the information provided below appropriately.
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/rviews/
Analysis Summary
----------------
BGP routing table entries examined: 343519
Prefixes after maximum aggregation: 154480
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 166665
Total ASes present in the Internet Routing Table: 35500
Prefixes per ASN: 9.68
Origin-only ASes present in the Internet Routing Table: 30531
Origin ASes announcing only one prefix: 14882
Transit ASes present in the Internet Routing Table: 4969
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 31
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 392
Unregistered ASNs in the Routing Table: 147
Number of 32-bit ASNs allocated by the RIRs: 948
Prefixes from 32-bit ASNs in the Routing Table: 4
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 197
Number of addresses announced to Internet: 2339554239
Equivalent to 139 /8s, 114 /16s and 195 /24s
Percentage of available address space announced: 63.1
Percentage of allocated address space announced: 65.2
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 86.7
Total number of prefixes smaller than registry allocations: 141324
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 81966
Total APNIC prefixes after maximum aggregation: 27593
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 79035
Unique aggregates announced from the APNIC address blocks: 34989
APNIC Region origin ASes present in the Internet Routing Table: 4248
APNIC Prefixes per ASN: 18.61
APNIC Region origin ASes announcing only one prefix: 1207
APNIC Region transit ASes present in the Internet Routing Table: 681
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 20
Number of APNIC addresses announced to Internet: 574845634
Equivalent to 34 /8s, 67 /16s and 114 /24s
Percentage of available APNIC address space announced: 77.9
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 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8,
58/8, 59/8, 60/8, 61/8, 101/8, 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, 223/8,
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 140096
Total ARIN prefixes after maximum aggregation: 72014
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110710
Unique aggregates announced from the ARIN address blocks: 43873
ARIN Region origin ASes present in the Internet Routing Table: 14085
ARIN Prefixes per ASN: 7.86
ARIN Region origin ASes announcing only one prefix: 5378
ARIN Region transit ASes present in the Internet Routing Table: 1486
Average ARIN Region AS path length visible: 3.7
Max ARIN Region AS path length visible: 25
Number of ARIN addresses announced to Internet: 743619977
Equivalent to 44 /8s, 82 /16s and 189 /24s
Percentage of available ARIN address space announced: 62.4
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, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 47/8, 48/8, 50/8, 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, 100/8,
107/8, 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: 82643
Total RIPE prefixes after maximum aggregation: 45725
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 75378
Unique aggregates announced from the RIPE address blocks: 47168
RIPE Region origin ASes present in the Internet Routing Table: 15155
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7719
RIPE Region transit ASes present in the Internet Routing Table: 2393
Average RIPE Region AS path length visible: 4.4
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 450949333
Equivalent to 26 /8s, 224 /16s and 240 /24s
Percentage of available RIPE address space announced: 74.7
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, 5/8, 25/8, 31/8, 37/8, 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,
176/8, 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: 30951
Total LACNIC prefixes after maximum aggregation: 7110
LACNIC Deaggregation factor: 4.35
Prefixes being announced from the LACNIC address blocks: 29813
Unique aggregates announced from the LACNIC address blocks: 15460
LACNIC Region origin ASes present in the Internet Routing Table: 1406
LACNIC Prefixes per ASN: 21.20
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 20
Number of LACNIC addresses announced to Internet: 78632960
Equivalent to 4 /8s, 175 /16s and 216 /24s
Percentage of available LACNIC address space announced: 58.6
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8,
201/8,
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 7596
Total AfriNIC prefixes after maximum aggregation: 1920
AfriNIC Deaggregation factor: 3.96
Prefixes being announced from the AfriNIC address blocks: 5893
Unique aggregates announced from the AfriNIC address blocks: 1762
AfriNIC Region origin ASes present in the Internet Routing Table: 427
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 31
Number of AfriNIC addresses announced to Internet: 21599744
Equivalent to 1 /8s, 73 /16s and 150 /24s
Percentage of available AfriNIC address space announced: 42.9
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1726 9453 516 Korea Telecom (KIX)
7545 1539 298 74 TPG Internet Pty Ltd
4755 1384 381 153 Videsh Sanchar Nigam Ltd. Aut
17974 1341 459 27 PT TELEKOMUNIKASI INDONESIA
24560 1040 312 174 Bharti Airtel Ltd.
9583 1039 76 487 Sify Limited
17488 970 157 111 Hathway IP Over Cable Interne
4808 950 1651 259 CNCGROUP IP network: China169
18101 907 116 137 Reliance Infocom Ltd Internet
9829 824 696 31 BSNL National Internet Backbo
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3732 3871 268 bellsouth.net, inc.
4323 2629 1091 397 Time Warner Telecom
19262 1834 4853 282 Verizon Global Networks
1785 1789 697 132 AppliedTheory Corporation
20115 1558 1534 639 Charter Communications
6478 1432 290 56 AT&T Worldnet Services
7018 1366 5678 880 AT&T WorldNet Services
2386 1308 571 925 AT&T Data Communications Serv
22773 1257 2863 73 Cox Communications, Inc.
11492 1246 233 75 Cable One
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
286 951 710 150 KPNQwest Backbone AS
9116 543 328 33 Goldenlines main autonomous s
6830 503 1763 309 UPC Distribution Services
3292 500 2010 386 TDC Tele Danmark
9121 438 1690 29 TTnet Autonomous System
8866 435 133 23 Bulgarian Telecommunication C
34984 422 92 191 Tellcom Iletisim Hizmetleri
9198 416 202 13 Kazakhtelecom Corporate Sales
8551 405 355 39 Bezeq International
702 403 1867 317 UUNET - Commercial IP service
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8151 1356 2601 369 Uninet S.A. de C.V.
10620 1343 250 154 TVCABLE BOGOTA
28573 1226 933 79 Types of queries are: POCs, o
6503 1177 355 81 AVANTEL, S.A.
7303 805 440 94 Telecom Argentina Stet-France
14420 584 49 88 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 495 216 102 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 452 32 30 Telefonica del Sur S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1021 445 10 TEDATA
24863 747 147 40 LINKdotNET AS number
36992 652 275 154 Etisalat MISR
3741 263 986 225 The Internet Solution
24835 212 78 10 RAYA Telecom - Egypt
6713 203 199 12 Itissalat Al-MAGHRIB
29571 199 19 11 Ci Telecom Autonomous system
2018 196 277 64 TENET-1
33776 184 12 14 Starcomms Nigeria Limited
16637 164 440 89 Johnnic e-Ventures
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3732 3871 268 bellsouth.net, inc.
4323 2629 1091 397 Time Warner Telecom
19262 1834 4853 282 Verizon Global Networks
1785 1789 697 132 AppliedTheory Corporation
4766 1726 9453 516 Korea Telecom (KIX)
20115 1558 1534 639 Charter Communications
7545 1539 298 74 TPG Internet Pty Ltd
6478 1432 290 56 AT&T Worldnet Services
4755 1384 381 153 Videsh Sanchar Nigam Ltd. Aut
7018 1366 5678 880 AT&T WorldNet Services
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2629 2232 Time Warner Telecom
1785 1789 1657 AppliedTheory Corporation
19262 1834 1552 Verizon Global Networks
7545 1539 1465 TPG Internet Pty Ltd
6478 1432 1376 AT&T Worldnet Services
17974 1341 1314 PT TELEKOMUNIKASI INDONESIA
4755 1384 1231 Videsh Sanchar Nigam Ltd. Aut
4766 1726 1210 Korea Telecom (KIX)
10620 1343 1189 TVCABLE BOGOTA
22773 1257 1184 Cox Communications, Inc.
Complete listing at http://thyme.rand.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 4323 Time Warner Telecom
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 12.39.155.0/24 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/rviews/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.29.244.56/29 286 KPNQwest Backbone AS
10.29.245.1/32 286 KPNQwest Backbone AS
10.29.245.2/32 286 KPNQwest Backbone AS
10.29.245.15/32 286 KPNQwest Backbone AS
10.29.245.19/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 KPNQwest Backbone AS
10.29.245.27/32 286 KPNQwest Backbone AS
10.29.245.28/32 286 KPNQwest Backbone AS
10.29.245.29/32 286 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-dsua
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Continental Cablevision
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
36.126.8.255/8 77 Johns Hopkins University Appl
41.222.79.0/24 36938 Amsco Telecommunications Nige
41.223.92.0/22 36936 >>UNKNOWN<<
Complete listing at http://thyme.rand.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 /8:21 /9:10 /10:25 /11:71 /12:213
/13:430 /14:757 /15:1368 /16:11510 /17:5756 /18:9483
/19:19136 /20:24626 /21:24611 /22:32211 /23:31426 /24:178946
/25:340 /26:359 /27:195 /28:377 /29:306 /30:684
/31:40 /32:618
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2304 3732 bellsouth.net, inc.
4323 1421 2629 Time Warner Telecom
6478 1389 1432 AT&T Worldnet Services
10620 1235 1343 TVCABLE BOGOTA
11492 1203 1246 Cable One
18566 1072 1091 Covad Communications
7011 1070 1173 Citizens Utilities
1785 1059 1789 AppliedTheory Corporation
6503 961 1177 AVANTEL, S.A.
19262 955 1834 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:132 2:21 4:17 5:1 8:318 12:2036
13:6 14:89 15:17 16:3 17:8 20:9
24:1434 27:489 32:144 33:5 34:2 36:1
37:1 38:719 40:101 41:2590 42:1 44:3
46:399 47:4 49:41 50:18 52:12 55:5
56:2 57:41 58:859 59:505 60:396 61:1112
62:1045 63:1940 64:3739 65:2322 66:4090 67:1792
68:1159 69:2918 70:755 71:391 72:1993 73:2
74:2331 75:299 76:328 77:865 78:749 79:444
80:1065 81:808 82:535 83:453 84:655 85:1066
86:500 87:740 88:417 89:1609 90:146 91:3346
92:461 93:1035 94:1144 95:708 96:407 97:246
98:714 99:33 101:3 107:2 108:77 109:817
110:468 111:674 112:310 113:319 114:482 115:648
116:904 117:654 118:606 119:1008 120:198 121:723
122:1572 123:1024 124:1230 125:1213 128:233 129:155
130:171 131:563 132:233 133:20 134:208 135:50
136:212 137:148 138:290 139:127 140:481 141:196
142:355 143:518 144:485 145:55 146:424 147:190
148:639 149:328 150:150 151:230 152:296 153:172
154:3 155:369 156:166 157:311 158:126 159:370
160:315 161:197 162:276 163:164 164:434 165:353
166:469 167:420 168:735 169:154 170:721 171:67
172:2 173:1148 174:473 175:261 176:1 178:642
180:729 182:539 183:241 184:205 186:826 187:769
188:879 189:1014 190:4278 192:5810 193:4825 194:3529
195:3045 196:1197 197:1 198:3543 199:3679 200:5537
201:1588 202:8407 203:8379 204:4042 205:2338 206:2586
207:2966 208:3869 209:3490 210:2564 211:1339 212:1938
213:1746 214:739 215:62 216:4819 217:1629 218:525
219:398 220:1183 221:445 222:342 223:77
End of report
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