Routing Table Report 00:00 GMT Fri 08 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: 367998
Prefixes after maximum aggregation: 166134
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 179897
Total ASes present in the Internet Routing Table: 38153
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31731
Origin ASes announcing only one prefix: 15206
Transit ASes present in the Internet Routing Table: 5181
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.1
Max AS path length visible: 30
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 3908
Unregistered ASNs in the Routing Table: 530
Number of 32-bit ASNs allocated by the RIRs: 1527
Number of 32-bit ASNs visible in the Routing Table: 1241
Prefixes from 32-bit ASNs in the Routing Table: 2880
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2494315079
Equivalent to 148 /8s, 172 /16s and 58 /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: 91.0
Total number of prefixes smaller than registry allocations: 153289
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87986
Total APNIC prefixes after maximum aggregation: 29119
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 84838
Unique aggregates announced from the APNIC address blocks: 37065
APNIC Region origin ASes present in the Internet Routing Table: 4483
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 707
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 55
Number of APNIC addresses announced to Internet: 621348545
Equivalent to 37 /8s, 9 /16s and 6 /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: 144589
Total ARIN prefixes after maximum aggregation: 74795
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 116190
Unique aggregates announced from the ARIN address blocks: 46638
ARIN Region origin ASes present in the Internet Routing Table: 14480
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5522
ARIN Region transit ASes present in the Internet Routing Table: 1508
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819528344
Equivalent to 48 /8s, 217 /16s and 2 /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: 89851
Total RIPE prefixes after maximum aggregation: 49445
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82481
Unique aggregates announced from the RIPE address blocks: 52618
RIPE Region origin ASes present in the Internet Routing Table: 15813
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7831
RIPE Region transit ASes present in the Internet Routing Table: 2509
Average RIPE Region AS path length visible: 4.3
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 917
Number of RIPE addresses announced to Internet: 479537868
Equivalent to 28 /8s, 149 /16s and 42 /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: 33998
Total LACNIC prefixes after maximum aggregation: 7633
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33151
Unique aggregates announced from the LACNIC address blocks: 16934
LACNIC Region origin ASes present in the Internet Routing Table: 1480
LACNIC Prefixes per ASN: 22.40
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 270
Average LACNIC Region AS path length visible: 4.4
Max LACNIC Region AS path length visible: 20
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 252
Number of LACNIC addresses announced to Internet: 85926408
Equivalent to 5 /8s, 31 /16s and 34 /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: 8387
Total AfriNIC prefixes after maximum aggregation: 1975
AfriNIC Deaggregation factor: 4.25
Prefixes being announced from the AfriNIC address blocks: 6461
Unique aggregates announced from the AfriNIC address blocks: 2004
AfriNIC Region origin ASes present in the Internet Routing Table: 473
AfriNIC Prefixes per ASN: 13.66
AfriNIC Region origin ASes announcing only one prefix: 151
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 4.2
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: 24353280
Equivalent to 1 /8s, 115 /16s and 154 /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 1919 11069 639 Korea Telecom (KIX)
17974 1696 460 43 PT TELEKOMUNIKASI INDONESIA
7545 1546 301 84 TPG Internet Pty Ltd
4755 1492 375 169 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9829 1105 922 46 BSNL National Internet Backbo
9583 1057 78 503 Sify Limited
4808 1020 2059 289 CNCGROUP IP network: China169
17488 979 186 105 Hathway IP Over Cable Interne
18101 937 116 143 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 3606 3819 245 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1807 681 122 AppliedTheory Corporation
4323 1655 1098 400 Time Warner Telecom
20115 1593 1532 635 Charter Communications
19262 1430 4778 393 Verizon Global Networks
7018 1378 7086 903 AT&T WorldNet Services
7029 1363 967 207 Windstream Communications Inc
22773 1349 2897 88 Cox Communications, Inc.
6478 1344 249 616 AT&T Worldnet Services
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 1041 798 190 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 536 106 184 Tellcom Iletisim Hizmetleri
3292 521 2077 402 TDC Tele Danmark
6830 513 1780 317 UPC Distribution Services
20940 462 132 356 Akamai Technologies European
12479 454 593 7 Uni2 Autonomous System
8866 449 133 25 Bulgarian Telecommunication C
29049 440 33 45 AzerSat LLC.
35819 439 79 13 Bayanat Al-Oula Autonomous Sy
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 1437 2724 358 Uninet S.A. de C.V.
28573 1270 995 77 Types of queries are: POCs, o
7303 1003 512 177 Telecom Argentina Stet-France
6503 760 354 75 AVANTEL, S.A.
14420 688 55 83 Types of queries are: POCs, o
22047 577 322 17 Types of queries are: POCs, o
10481 548 430 20 Prima S.A.
3816 532 230 96 COLOMBIA TELECOMUNICACIONES S
27947 521 54 48 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
8452 796 445 11 TEDATA
24863 790 147 37 LINKdotNET AS number
15475 514 74 8 Nile Online
36992 315 415 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 3606 3819 245 bellsouth.net, inc.
23456 2880 699 1536 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1919 11069 639 Korea Telecom (KIX)
1785 1807 681 122 AppliedTheory Corporation
17974 1696 460 43 PT TELEKOMUNIKASI INDONESIA
4323 1655 1098 400 Time Warner Telecom
20115 1593 1532 635 Charter Communications
7545 1546 301 84 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
18566 1957 1734 Covad Communications
1785 1807 1685 AppliedTheory Corporation
17974 1696 1653 PT TELEKOMUNIKASI INDONESIA
7545 1546 1462 TPG Internet Pty Ltd
10620 1543 1385 TVCABLE BOGOTA
23456 2880 1344 >>UNKNOWN<<
4755 1492 1323 Videsh Sanchar Nigam Ltd. Aut
4766 1919 1280 Korea Telecom (KIX)
22773 1349 1261 Cox Communications, Inc.
4323 1655 1255 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
27.0.128.0/17 7514 Media Exchange, Inc.
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 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 /8:23 /9:12 /10:28 /11:81 /12:232
/13:468 /14:810 /15:1428 /16:12110 /17:6139 /18:10109
/19:19987 /20:27004 /21:26636 /22:35087 /23:34099 /24:190728
/25:387 /26:355 /27:188 /28:364 /29:295 /30:714
/31:63 /32:651
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2217 3606 bellsouth.net, inc.
18566 1907 1957 Covad Communications
10620 1438 1543 TVCABLE BOGOTA
23456 1425 2880 >>UNKNOWN<<
6478 1315 1344 AT&T Worldnet Services
11492 1096 1142 Cable One
7029 1060 1363 Windstream Communications Inc
7011 1054 1156 Citizens Utilities
1785 1053 1807 AppliedTheory Corporation
286 901 1041 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:323 2:70 4:20 5:1 6:3 8:338
12:1977 13:1 14:479 15:15 16:3 17:5
20:10 23:13 24:1688 27:816 31:492 32:135
33:4 34:2 36:4 38:745 40:103 41:2531
42:32 44:3 46:1047 47:3 49:194 50:441
52:13 54:2 55:4 56:2 57:45 58:858
59:479 60:387 61:1116 62:1056 63:1951 64:3967
65:2296 66:3898 67:1932 68:1270 69:3155 70:803
71:389 72:1920 73:2 74:2438 75:328 76:349
77:928 78:717 79:482 80:1124 81:847 82:514
83:464 84:702 85:1091 86:573 87:779 88:340
89:1571 90:223 91:3961 92:538 93:1068 94:1368
95:910 96:448 97:256 98:904 99:36 101:77
103:106 106:10 107:20 108:79 109:1041 110:621
111:711 112:303 113:406 114:545 115:675 116:981
117:670 118:853 119:1153 120:312 121:690 122:1595
123:965 124:1296 125:1231 128:247 129:175 130:167
131:580 132:112 133:21 134:215 135:48 136:216
137:136 138:299 139:129 140:479 141:242 142:406
143:420 144:485 145:54 146:440 147:224 148:655
149:247 150:164 151:189 152:328 153:182 154:4
155:398 156:197 157:353 158:137 159:452 160:315
161:201 162:309 163:164 164:503 165:376 166:529
167:430 168:741 169:156 170:845 171:78 172:1
173:1657 174:612 175:381 176:142 177:163 178:1002
180:881 181:22 182:493 183:222 184:406 185:1
186:1270 187:708 188:883 189:938 190:4956 192:5927
193:4997 194:3566 195:3152 196:1248 197:40 198:3587
199:3969 200:5543 201:1492 202:8386 203:8427 204:4225
205:2325 206:2756 207:2818 208:3979 209:3463 210:2704
211:1466 212:2143 213:1782 214:773 215:69 216:4959
217:1651 218:547 219:362 220:1204 221:494 222:362
223:184
End of report
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