Routing Table Report 00:00 GMT Wed 13 Jul, 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: 369211
Prefixes after maximum aggregation: 166499
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180512
Total ASes present in the Internet Routing Table: 38174
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31751
Origin ASes announcing only one prefix: 15207
Transit ASes present in the Internet Routing Table: 5165
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.4
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3998
Unregistered ASNs in the Routing Table: 551
Number of 32-bit ASNs allocated by the RIRs: 1543
Number of 32-bit ASNs visible in the Routing Table: 1258
Prefixes from 32-bit ASNs in the Routing Table: 2927
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2494659111
Equivalent to 148 /8s, 177 /16s and 122 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 153821
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88340
Total APNIC prefixes after maximum aggregation: 29163
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 85186
Unique aggregates announced from the APNIC address blocks: 37373
APNIC Region origin ASes present in the Internet Routing Table: 4492
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 5.0
Max APNIC Region AS path length visible: 21
Number of APNIC region 32-bit ASNs visible in the Routing Table: 59
Number of APNIC addresses announced to Internet: 621632193
Equivalent to 37 /8s, 13 /16s and 90 /24s
Percentage of available APNIC address space announced: 78.8
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, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 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: 145197
Total ARIN prefixes after maximum aggregation: 75034
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116722
Unique aggregates announced from the ARIN address blocks: 46719
ARIN Region origin ASes present in the Internet Routing Table: 14476
ARIN Prefixes per ASN: 8.06
ARIN Region origin ASes announcing only one prefix: 5521
ARIN Region transit ASes present in the Internet Routing Table: 1485
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 31
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819728536
Equivalent to 48 /8s, 220 /16s and 16 /24s
Percentage of available ARIN address space announced: 65.1
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, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 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, 104/8, 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: 89911
Total RIPE prefixes after maximum aggregation: 49480
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82534
Unique aggregates announced from the RIPE address blocks: 52673
RIPE Region origin ASes present in the Internet Routing Table: 15827
RIPE Prefixes per ASN: 5.21
RIPE Region origin ASes announcing only one prefix: 7833
RIPE Region transit ASes present in the Internet Routing Table: 2528
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 29
Number of RIPE region 32-bit ASNs visible in the Routing Table: 922
Number of RIPE addresses announced to Internet: 479594412
Equivalent to 28 /8s, 150 /16s and 7 /24s
Percentage of available RIPE address space announced: 77.3
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, 185/8, 193/8, 194/8, 195/8, 212/8,
213/8, 217/8,
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 34102
Total LACNIC prefixes after maximum aggregation: 7635
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33216
Unique aggregates announced from the LACNIC address blocks: 17051
LACNIC Region origin ASes present in the Internet Routing Table: 1481
LACNIC Prefixes per ASN: 22.43
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 267
Average LACNIC Region AS path length visible: 4.5
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 260
Number of LACNIC addresses announced to Internet: 85922824
Equivalent to 5 /8s, 31 /16s and 20 /24s
Percentage of available LACNIC address space announced: 56.9
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
262144-263167 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 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: 8405
Total AfriNIC prefixes after maximum aggregation: 1974
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6482
Unique aggregates announced from the AfriNIC address blocks: 1986
AfriNIC Region origin ASes present in the Internet Routing Table: 469
AfriNIC Prefixes per ASN: 13.82
AfriNIC Region origin ASes announcing only one prefix: 146
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24314112
Equivalent to 1 /8s, 115 /16s and 1 /24s
Percentage of available AfriNIC address space announced: 36.2
AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8,
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4766 1915 11068 638 Korea Telecom (KIX)
17974 1786 458 45 PT TELEKOMUNIKASI INDONESIA
7545 1549 301 85 TPG Internet Pty Ltd
4755 1498 375 168 Videsh Sanchar Nigam Ltd. Aut
24560 1154 336 187 Bharti Airtel Ltd.
9829 1105 922 46 BSNL National Internet Backbo
9583 1062 78 506 Sify Limited
17488 979 186 105 Hathway IP Over Cable Interne
4808 956 2019 275 CNCGROUP IP network: China169
18101 932 116 139 Reliance Infocom Ltd Internet
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 3603 3819 244 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1808 681 122 AppliedTheory Corporation
4323 1655 1098 401 Time Warner Telecom
20115 1595 1534 627 Charter Communications
19262 1430 4789 392 Verizon Global Networks
7018 1376 7086 902 AT&T WorldNet Services
7029 1366 975 210 Windstream Communications Inc
22773 1350 2897 88 Cox Communications, Inc.
2386 1260 521 906 AT&T Data Communications Serv
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 1034 797 186 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 536 106 184 Tellcom Iletisim Hizmetleri
3292 523 2077 403 TDC Tele Danmark
6830 514 1780 318 UPC Distribution Services
20940 461 131 356 Akamai Technologies European
12479 456 593 7 Uni2 Autonomous System
8866 449 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 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 1543 282 158 TVCABLE BOGOTA
8151 1433 2728 355 Uninet S.A. de C.V.
28573 1276 995 78 Types of queries are: POCs, o
7303 1008 512 176 Telecom Argentina Stet-France
6503 759 354 75 AVANTEL, S.A.
14420 689 55 83 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 533 230 98 COLOMBIA TELECOMUNICACIONES S
27947 520 53 53 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
24863 794 147 36 LINKdotNET AS number
8452 779 445 11 TEDATA
15475 513 74 8 Nile Online
36992 312 415 14 Etisalat MISR
16637 294 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
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 3603 3819 244 bellsouth.net, inc.
23456 2927 706 1559 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1915 11068 638 Korea Telecom (KIX)
1785 1808 681 122 AppliedTheory Corporation
17974 1786 458 45 PT TELEKOMUNIKASI INDONESIA
4323 1655 1098 401 Time Warner Telecom
20115 1595 1534 627 Charter Communications
7545 1549 301 85 TPG Internet Pty Ltd
10620 1543 282 158 TVCABLE BOGOTA
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
17974 1786 1741 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1808 1686 AppliedTheory Corporation
7545 1549 1464 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2927 1368 >>UNKNOWN<<
4755 1498 1330 Videsh Sanchar Nigam Ltd. Aut
4766 1915 1277 Korea Telecom (KIX)
22773 1350 1262 Cox Communications, Inc.
4323 1655 1254 Time Warner Telecom
Complete listing at http://thyme.rand.apnic.net/rviews/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic
32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom
26973 UNALLOCATED 12.39.152.0/24 1239 Sprint
26973 UNALLOCATED 12.39.154.0/23 1239 Sprint
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 1239 Sprint
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic
13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic
23502 UNALLOCATED 12.44.44.0/24 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
24.225.128.0/18 36377 Comcast Telecommunications, I
24.225.192.0/23 36377 Comcast Telecommunications, I
24.225.192.0/18 36377 Comcast Telecommunications, I
24.225.224.0/21 36377 Comcast Telecommunications, I
24.225.237.0/24 36377 Comcast Telecommunications, I
24.225.248.0/21 36377 Comcast Telecommunications, I
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV - Wireless
62.61.221.0/24 24974 Tachyon Europe BV - Wireless
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 /8:22 /9:12 /10:26 /11:80 /12:232
/13:468 /14:811 /15:1431 /16:12106 /17:6144 /18:10131
/19:20020 /20:27064 /21:26773 /22:35198 /23:34226 /24:191456
/25:391 /26:353 /27:181 /28:370 /29:286 /30:705
/31:63 /32:662
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2215 3603 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1438 2927 >>UNKNOWN<<
11492 1093 1139 Cable One
7029 1060 1366 Windstream Communications Inc
7011 1054 1156 Citizens Utilities
1785 1053 1808 AppliedTheory Corporation
6478 1051 1080 AT&T Worldnet Services
286 895 1034 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:326 2:72 4:20 5:1 6:3 8:337
12:1970 13:1 14:484 15:15 16:3 17:5
20:10 23:13 24:1683 27:816 31:493 32:135
33:4 34:2 36:4 38:745 40:103 41:2556
42:32 44:3 46:1044 47:3 49:200 50:461
52:13 54:2 55:5 56:2 57:45 58:860
59:478 60:386 61:1185 62:1060 63:1957 64:4002
65:2299 66:3926 67:1925 68:1270 69:3151 70:800
71:389 72:1916 73:2 74:2436 75:329 76:349
77:927 78:715 79:479 80:1127 81:882 82:516
83:460 84:701 85:1086 86:555 87:780 88:341
89:1571 90:223 91:3976 92:527 93:1070 94:1369
95:915 96:417 97:257 98:904 99:37 101:77
103:118 106:10 107:21 108:79 109:1035 110:625
111:711 112:304 113:408 114:550 115:675 116:979
117:666 118:857 119:1153 120:314 121:694 122:1599
123:969 124:1305 125:1231 128:247 129:175 130:168
131:579 132:111 133:21 134:215 135:48 136:216
137:136 138:299 139:129 140:478 141:241 142:407
143:419 144:486 145:54 146:472 147:222 148:682
149:248 150:162 151:189 152:341 153:182 154:4
155:397 156:199 157:355 158:138 159:450 160:312
161:201 162:308 163:164 164:505 165:388 166:527
167:434 168:740 169:156 170:850 171:78 172:1
173:1646 174:612 175:376 176:143 177:173 178:998
180:884 181:24 182:494 183:225 184:393 185:1
186:1280 187:733 188:882 189:941 190:4966 192:5933
193:5000 194:3586 195:3160 196:1247 197:41 198:3593
199:3977 200:5565 201:1490 202:8410 203:8438 204:4245
205:2350 206:2734 207:2817 208:4100 209:3538 210:2699
211:1468 212:2153 213:1792 214:778 215:69 216:4987
217:1648 218:547 219:363 220:1205 221:494 222:362
223:216
End of report
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