Routing Table Report 00:00 GMT Tue 12 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: 369041
Prefixes after maximum aggregation: 166376
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 180101
Total ASes present in the Internet Routing Table: 38159
Prefixes per ASN: 9.67
Origin-only ASes present in the Internet Routing Table: 31729
Origin ASes announcing only one prefix: 15200
Transit ASes present in the Internet Routing Table: 5176
Transit-only ASes present in the Internet Routing Table: 121
Average AS path length visible in the Internet Routing Table: 4.3
Max AS path length visible: 31
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3989
Unregistered ASNs in the Routing Table: 552
Number of 32-bit ASNs allocated by the RIRs: 1542
Number of 32-bit ASNs visible in the Routing Table: 1254
Prefixes from 32-bit ASNs in the Routing Table: 2915
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2494582343
Equivalent to 148 /8s, 176 /16s and 78 /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: 153750
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88242
Total APNIC prefixes after maximum aggregation: 29145
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 85085
Unique aggregates announced from the APNIC address blocks: 37071
APNIC Region origin ASes present in the Internet Routing Table: 4486
APNIC Prefixes per ASN: 18.97
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 700
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: 57
Number of APNIC addresses announced to Internet: 621432001
Equivalent to 37 /8s, 10 /16s and 76 /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: 145156
Total ARIN prefixes after maximum aggregation: 74944
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116751
Unique aggregates announced from the ARIN address blocks: 46695
ARIN Region origin ASes present in the Internet Routing Table: 14469
ARIN Prefixes per ASN: 8.07
ARIN Region origin ASes announcing only one prefix: 5517
ARIN Region transit ASes present in the Internet Routing Table: 1488
Average ARIN Region AS path length visible: 4.1
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: 819603864
Equivalent to 48 /8s, 218 /16s and 41 /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: 89988
Total RIPE prefixes after maximum aggregation: 49494
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82616
Unique aggregates announced from the RIPE address blocks: 52674
RIPE Region origin ASes present in the Internet Routing Table: 15832
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7835
RIPE Region transit ASes present in the Internet Routing Table: 2540
Average RIPE Region AS path length visible: 3.9
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 922
Number of RIPE addresses announced to Internet: 479608012
Equivalent to 28 /8s, 150 /16s and 60 /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: 34043
Total LACNIC prefixes after maximum aggregation: 7621
LACNIC Deaggregation factor: 4.47
Prefixes being announced from the LACNIC address blocks: 33172
Unique aggregates announced from the LACNIC address blocks: 16982
LACNIC Region origin ASes present in the Internet Routing Table: 1479
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: 4.6
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 258
Number of LACNIC addresses announced to Internet: 85919752
Equivalent to 5 /8s, 31 /16s and 8 /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: 8364
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6424
Unique aggregates announced from the AfriNIC address blocks: 1981
AfriNIC Region origin ASes present in the Internet Routing Table: 468
AfriNIC Prefixes per ASN: 13.73
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 102
Average AfriNIC Region AS path length visible: 4.3
Max AfriNIC Region AS path length visible: 26
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 24333312
Equivalent to 1 /8s, 115 /16s and 76 /24s
Percentage of available AfriNIC address space announced: 36.3
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 1909 11035 632 Korea Telecom (KIX)
17974 1791 461 41 PT TELEKOMUNIKASI INDONESIA
7545 1547 301 85 TPG Internet Pty Ltd
4755 1497 375 170 Videsh Sanchar Nigam Ltd. Aut
24560 1154 336 187 Bharti Airtel Ltd.
9829 1101 921 47 BSNL National Internet Backbo
9583 1060 78 505 Sify Limited
17488 978 186 107 Hathway IP Over Cable Interne
4808 953 2009 281 CNCGROUP IP network: China169
18101 933 116 139 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 3602 3818 244 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1807 681 122 AppliedTheory Corporation
4323 1653 1098 400 Time Warner Telecom
20115 1593 1532 632 Charter Communications
19262 1430 4778 393 Verizon Global Networks
7018 1376 7086 901 AT&T WorldNet Services
22773 1350 2897 88 Cox Communications, Inc.
6478 1346 251 618 AT&T Worldnet Services
7029 1328 816 315 Windstream Communications Inc
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 1039 798 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 535 106 184 Tellcom Iletisim Hizmetleri
3292 522 2076 402 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 441 33 45 AzerSat LLC.
3320 421 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 1435 2727 355 Uninet S.A. de C.V.
28573 1273 995 78 Types of queries are: POCs, o
7303 1002 512 177 Telecom Argentina Stet-France
6503 754 354 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 535 230 96 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 793 147 36 LINKdotNET AS number
8452 780 445 11 TEDATA
15475 514 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 3602 3818 244 bellsouth.net, inc.
23456 2915 704 1553 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1909 11035 632 Korea Telecom (KIX)
1785 1807 681 122 AppliedTheory Corporation
17974 1791 461 41 PT TELEKOMUNIKASI INDONESIA
4323 1653 1098 400 Time Warner Telecom
20115 1593 1532 632 Charter Communications
7545 1547 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 1791 1750 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1807 1685 AppliedTheory Corporation
7545 1547 1462 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2915 1362 >>UNKNOWN<<
4755 1497 1327 Videsh Sanchar Nigam Ltd. Aut
4766 1909 1277 Korea Telecom (KIX)
22773 1350 1262 Cox Communications, Inc.
4323 1653 1253 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 /10:28 /11:81 /12:232
/13:468 /14:811 /15:1429 /16:12106 /17:6142 /18:10127
/19:20016 /20:27062 /21:26781 /22:35197 /23:34229 /24:191311
/25:388 /26:350 /27:182 /28:358 /29:285 /30:705
/31:63 /32:656
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2213 3602 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1431 2915 >>UNKNOWN<<
6478 1316 1346 AT&T Worldnet Services
11492 1096 1142 Cable One
7011 1054 1156 Citizens Utilities
7029 1054 1328 Windstream Communications Inc
1785 1053 1807 AppliedTheory Corporation
286 899 1039 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:324 2:73 4:20 5:1 6:3 8:337
12:1971 13:1 14:481 15:15 16:3 17:5
20:10 23:13 24:1693 27:815 31:493 32:135
33:4 34:2 36:4 38:746 40:103 41:2549
42:32 44:3 46:1037 47:3 49:199 50:442
52:13 54:2 55:5 56:2 57:45 58:862
59:478 60:386 61:1186 62:1062 63:1957 64:3998
65:2293 66:3912 67:1931 68:1260 69:3150 70:799
71:389 72:1914 73:2 74:2435 75:328 76:349
77:927 78:716 79:481 80:1124 81:878 82:514
83:463 84:703 85:1095 86:565 87:781 88:341
89:1572 90:223 91:3970 92:537 93:1071 94:1364
95:915 96:448 97:255 98:905 99:37 101:75
103:111 106:10 107:21 108:79 109:1036 110:622
111:709 112:303 113:405 114:552 115:674 116:981
117:665 118:853 119:1151 120:313 121:695 122:1597
123:970 124:1302 125:1231 128:247 129:175 130:168
131:579 132:112 133:21 134:215 135:48 136:216
137:136 138:299 139:129 140:478 141:243 142:407
143:416 144:485 145:54 146:451 147:225 148:681
149:248 150:162 151:189 152:331 153:182 154:4
155:394 156:198 157:354 158:138 159:450 160:311
161:201 162:308 163:164 164:505 165:388 166:531
167:433 168:739 169:155 170:842 171:78 172:1
173:1661 174:612 175:375 176:142 177:178 178:998
180:883 181:24 182:492 183:223 184:425 185:1
186:1277 187:713 188:883 189:943 190:4952 192:5933
193:4999 194:3584 195:3166 196:1241 197:41 198:3587
199:3974 200:5541 201:1489 202:8394 203:8432 204:4229
205:2349 206:2746 207:2825 208:4102 209:3529 210:2700
211:1469 212:2153 213:1771 214:776 215:69 216:5002
217:1635 218:548 219:362 220:1205 221:494 222:362
223:216
End of report
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