Routing Table Report 00:00 GMT Tue 01 Feb, 2011
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: 346261
Prefixes after maximum aggregation: 156390
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 169406
Total ASes present in the Internet Routing Table: 35746
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 30820
Origin ASes announcing only one prefix: 14907
Transit ASes present in the Internet Routing Table: 4926
Transit-only ASes present in the Internet Routing Table: 117
Average AS path length visible in the Internet Routing Table: 5.0
Max AS path length visible: 33
Max AS path prepend of ASN (36992) 29
Prefixes from unregistered ASNs in the Routing Table: 423
Unregistered ASNs in the Routing Table: 154
Number of 32-bit ASNs allocated by the RIRs: 1063
Prefixes from 32-bit ASNs in the Routing Table: 7
Special use prefixes present in the Routing Table: 73
Prefixes being announced from unallocated address space: 210
Number of addresses announced to Internet: 2350258879
Equivalent to 140 /8s, 22 /16s and 26 /24s
Percentage of available address space announced: 63.4
Percentage of allocated address space announced: 65.5
Percentage of available address space allocated: 96.8
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 142171
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83702
Total APNIC prefixes after maximum aggregation: 27993
APNIC Deaggregation factor: 2.99
Prefixes being announced from the APNIC address blocks: 80613
Unique aggregates announced from the APNIC address blocks: 35579
APNIC Region origin ASes present in the Internet Routing Table: 4307
APNIC Prefixes per ASN: 18.72
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 678
Average APNIC Region AS path length visible: 5.6
Max APNIC Region AS path length visible: 21
Number of APNIC addresses announced to Internet: 586987970
Equivalent to 34 /8s, 252 /16s and 185 /24s
Percentage of available APNIC address space announced: 79.5
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: 141223
Total ARIN prefixes after maximum aggregation: 72825
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 111795
Unique aggregates announced from the ARIN address blocks: 44429
ARIN Region origin ASes present in the Internet Routing Table: 14182
ARIN Prefixes per ASN: 7.88
ARIN Region origin ASes announcing only one prefix: 5407
ARIN Region transit ASes present in the Internet Routing Table: 1474
Average ARIN Region AS path length visible: 4.5
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 751698057
Equivalent to 44 /8s, 206 /16s and 0 /24s
Percentage of available ARIN address space announced: 63.1
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, 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: 84743
Total RIPE prefixes after maximum aggregation: 46527
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 77252
Unique aggregates announced from the RIPE address blocks: 48411
RIPE Region origin ASes present in the Internet Routing Table: 15261
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7718
RIPE Region transit ASes present in the Internet Routing Table: 2373
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 457325193
Equivalent to 27 /8s, 66 /16s and 58 /24s
Percentage of available RIPE address space announced: 75.7
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, 56320-58367
196608-198655
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: 31713
Total LACNIC prefixes after maximum aggregation: 7260
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 30460
Unique aggregates announced from the LACNIC address blocks: 15792
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.41
LACNIC Region origin ASes announcing only one prefix: 430
LACNIC Region transit ASes present in the Internet Routing Table: 252
Average LACNIC Region AS path length visible: 5.2
Max LACNIC Region AS path length visible: 24
Number of LACNIC addresses announced to Internet: 80282700
Equivalent to 4 /8s, 201 /16s and 4 /24s
Percentage of available LACNIC address space announced: 59.8
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: 4624
Total AfriNIC prefixes after maximum aggregation: 1662
AfriNIC Deaggregation factor: 2.78
Prefixes being announced from the AfriNIC address blocks: 3442
Unique aggregates announced from the AfriNIC address blocks: 1585
AfriNIC Region origin ASes present in the Internet Routing Table: 395
AfriNIC Prefixes per ASN: 8.71
AfriNIC Region origin ASes announcing only one prefix: 119
AfriNIC Region transit ASes present in the Internet Routing Table: 88
Average AfriNIC Region AS path length visible: 5.0
Max AfriNIC Region AS path length visible: 33
Number of AfriNIC addresses announced to Internet: 18212096
Equivalent to 1 /8s, 21 /16s and 229 /24s
Percentage of available AfriNIC address space announced: 36.2
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 1760 9484 516 Korea Telecom (KIX)
7545 1589 299 80 TPG Internet Pty Ltd
4755 1402 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1373 467 27 PT TELEKOMUNIKASI INDONESIA
24560 1094 317 180 Bharti Airtel Ltd.
9583 1044 76 487 Sify Limited
17488 965 162 103 Hathway IP Over Cable Interne
18101 922 116 140 Reliance Infocom Ltd Internet
4808 901 1938 252 CNCGROUP IP network: China169
9829 896 762 41 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 3709 3855 265 bellsouth.net, inc.
4323 2631 1109 403 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
20115 1571 1535 642 Charter Communications
6478 1470 289 114 AT&T Worldnet Services
7018 1363 6682 884 AT&T WorldNet Services
2386 1298 554 935 AT&T Data Communications Serv
22773 1277 2865 78 Cox Communications, Inc.
11492 1262 235 79 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
286 976 710 153 KPNQwest Backbone AS
9116 522 328 32 Goldenlines main autonomous s
6830 516 1764 319 UPC Distribution Services
3292 506 2011 391 TDC Tele Danmark
9198 465 266 14 Kazakhtelecom Corporate Sales
34984 457 97 137 Tellcom Iletisim Hizmetleri
8866 440 133 23 Bulgarian Telecommunication C
12479 414 577 6 Uni2 Autonomous System
8551 405 355 38 Bezeq International
3320 403 7619 352 Deutsche Telekom AG
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
10620 1358 252 163 TVCABLE BOGOTA
8151 1335 2634 359 Uninet S.A. de C.V.
28573 1246 961 82 Types of queries are: POCs, o
6503 1150 355 78 AVANTEL, S.A.
7303 889 461 115 Telecom Argentina Stet-France
14420 614 55 90 Types of queries are: POCs, o
22047 566 310 15 Types of queries are: POCs, o
3816 539 220 95 COLOMBIA TELECOMUNICACIONES S
7738 478 922 30 Telecomunicacoes da Bahia S.A
27947 459 53 52 Telconet 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
3741 264 987 226 The Internet Solution
6713 203 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 193 17 11 Ci Telecom Autonomous system
16637 149 422 84 Johnnic e-Ventures
36874 139 24 6 Cybersmart
29975 131 490 17 Vodacom
37061 108 9 2 One Communications Ltd
15706 106 16 5 Sudatel Internet Exchange Aut
37054 85 5 21 Data Telecom Service
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 3709 3855 265 bellsouth.net, inc.
4323 2631 1109 403 Time Warner Telecom
19262 1841 4927 285 Verizon Global Networks
1785 1787 697 133 AppliedTheory Corporation
4766 1760 9484 516 Korea Telecom (KIX)
7545 1589 299 80 TPG Internet Pty Ltd
20115 1571 1535 642 Charter Communications
6478 1470 289 114 AT&T Worldnet Services
4755 1402 376 158 Videsh Sanchar Nigam Ltd. Aut
17974 1373 467 27 PT TELEKOMUNIKASI INDONESIA
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 2631 2228 Time Warner Telecom
1785 1787 1654 AppliedTheory Corporation
19262 1841 1556 Verizon Global Networks
7545 1589 1509 TPG Internet Pty Ltd
6478 1470 1356 AT&T Worldnet Services
17974 1373 1346 PT TELEKOMUNIKASI INDONESIA
4766 1760 1244 Korea Telecom (KIX)
4755 1402 1244 Videsh Sanchar Nigam Ltd. Aut
22773 1277 1199 Cox Communications, Inc.
10620 1358 1195 TVCABLE BOGOTA
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 4323 Time Warner Telecom
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
10.29.245.20/32 286 KPNQwest Backbone AS
10.29.245.21/32 286 KPNQwest Backbone AS
10.29.245.22/32 286 KPNQwest Backbone AS
10.29.245.25/32 286 KPNQwest Backbone AS
10.29.245.26/32 286 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
41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M
41.222.79.0/24 36938 >>UNKNOWN<<
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 /8:19 /9:10 /10:26 /11:72 /12:215
/13:440 /14:771 /15:1384 /16:11575 /17:5827 /18:9559
/19:19248 /20:24887 /21:24908 /22:32870 /23:31564 /24:179763
/25:376 /26:356 /27:208 /28:385 /29:328 /30:753
/31:49 /32:668
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2288 3709 bellsouth.net, inc.
6478 1424 1470 AT&T Worldnet Services
4323 1419 2631 Time Warner Telecom
10620 1249 1358 TVCABLE BOGOTA
11492 1218 1262 Cable One
18566 1106 1125 Covad Communications
7011 1065 1168 Citizens Utilities
1785 1059 1787 AppliedTheory Corporation
19262 954 1841 Verizon Global Networks
6503 934 1150 AVANTEL, S.A.
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:167 2:49 4:17 5:1 8:333 12:2031
13:1 14:382 15:15 16:3 17:8 20:9
23:1 24:1492 27:563 32:128 33:5 34:2
36:1 37:1 38:692 40:101 41:1644 42:1
44:3 46:529 47:5 49:143 50:76 52:12
55:5 56:2 57:40 58:867 59:485 60:391
61:1117 62:875 63:1924 64:3784 65:2334 66:4092
67:1789 68:1161 69:2979 70:759 71:399 72:2038
73:3 74:2370 75:305 76:338 77:854 78:694
79:453 80:1034 81:798 82:524 83:483 84:478
85:1077 86:514 87:754 88:354 89:1622 90:159
91:3450 92:495 93:1048 94:1210 95:794 96:413
97:249 98:763 99:33 101:24 107:3 108:81
109:881 110:469 111:695 112:313 113:358 114:494
115:633 116:892 117:674 118:651 119:1028 120:244
121:704 122:1609 123:1052 124:1290 125:1217 128:248
129:157 130:173 131:569 132:110 133:20 134:220
135:49 136:216 137:147 138:294 139:133 140:489
141:198 142:366 143:378 144:485 145:51 146:426
147:205 148:627 149:273 150:151 151:231 152:303
153:175 154:3 155:347 156:170 157:342 158:128
159:377 160:314 161:205 162:277 163:118 164:486
165:357 166:480 167:421 168:740 169:155 170:749
171:66 172:1 173:1274 174:523 175:313 176:1
177:4 178:766 180:775 182:404 183:247 184:240
186:968 187:795 188:908 189:1024 190:4437 192:5826
193:4815 194:3526 195:3065 196:1020 197:3 198:3569
199:3753 200:5579 201:1582 202:8415 203:8450 204:4102
205:2348 206:2588 207:2966 208:3884 209:3500 210:2647
211:1332 212:1920 213:1653 214:752 215:62 216:4837
217:1425 218:530 219:376 220:1205 221:451 222:343
223:93
End of report
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