Routing Table Report 00:00 GMT Tue 14 Jun, 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: 364506
Prefixes after maximum aggregation: 164191
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 178418
Total ASes present in the Internet Routing Table: 37878
Prefixes per ASN: 9.62
Origin-only ASes present in the Internet Routing Table: 31631
Origin ASes announcing only one prefix: 15134
Transit ASes present in the Internet Routing Table: 5099
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 26
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3572
Unregistered ASNs in the Routing Table: 450
Number of 32-bit ASNs allocated by the RIRs: 1450
Number of 32-bit ASNs visible in the Routing Table: 1148
Prefixes from 32-bit ASNs in the Routing Table: 2678
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 163
Number of addresses announced to Internet: 2488036560
Equivalent to 148 /8s, 76 /16s and 108 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.9
Total number of prefixes smaller than registry allocations: 151887
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87160
Total APNIC prefixes after maximum aggregation: 29024
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 83726
Unique aggregates announced from the APNIC address blocks: 36736
APNIC Region origin ASes present in the Internet Routing Table: 4466
APNIC Prefixes per ASN: 18.75
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 687
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 22
Number of APNIC region 32-bit ASNs visible in the Routing Table: 46
Number of APNIC addresses announced to Internet: 619719618
Equivalent to 36 /8s, 240 /16s and 43 /24s
Percentage of available APNIC address space announced: 78.6
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: 144000
Total ARIN prefixes after maximum aggregation: 73611
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 115612
Unique aggregates announced from the ARIN address blocks: 46000
ARIN Region origin ASes present in the Internet Routing Table: 14435
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5488
ARIN Region transit ASes present in the Internet Routing Table: 1489
Average ARIN Region AS path length visible: 3.6
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 12
Number of ARIN addresses announced to Internet: 818743064
Equivalent to 48 /8s, 205 /16s and 7 /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: 88863
Total RIPE prefixes after maximum aggregation: 49105
RIPE Deaggregation factor: 1.81
Prefixes being announced from the RIPE address blocks: 81523
Unique aggregates announced from the RIPE address blocks: 52214
RIPE Region origin ASes present in the Internet Routing Table: 15725
RIPE Prefixes per ASN: 5.18
RIPE Region origin ASes announcing only one prefix: 7798
RIPE Region transit ASes present in the Internet Routing Table: 2484
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 851
Number of RIPE addresses announced to Internet: 477836244
Equivalent to 28 /8s, 123 /16s and 51 /24s
Percentage of available RIPE address space announced: 77.0
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: 33232
Total LACNIC prefixes after maximum aggregation: 7554
LACNIC Deaggregation factor: 4.40
Prefixes being announced from the LACNIC address blocks: 32343
Unique aggregates announced from the LACNIC address blocks: 16998
LACNIC Region origin ASes present in the Internet Routing Table: 1465
LACNIC Prefixes per ASN: 22.08
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 261
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 234
Number of LACNIC addresses announced to Internet: 84478984
Equivalent to 5 /8s, 9 /16s and 12 /24s
Percentage of available LACNIC address space announced: 55.9
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: 8272
Total AfriNIC prefixes after maximum aggregation: 1919
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 6358
Unique aggregates announced from the AfriNIC address blocks: 1885
AfriNIC Region origin ASes present in the Internet Routing Table: 461
AfriNIC Prefixes per ASN: 13.79
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 4.0
Max AfriNIC Region AS path length visible: 25
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5
Number of AfriNIC addresses announced to Internet: 24090368
Equivalent to 1 /8s, 111 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 35.9
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 1904 9492 620 Korea Telecom (KIX)
17974 1566 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
4755 1472 374 165 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
7552 1146 1064 7 Vietel Corporation
9583 1078 80 509 Sify Limited
9829 1042 879 56 BSNL National Internet Backbo
4808 1015 2076 294 CNCGROUP IP network: China169
17488 961 191 102 Hathway IP Over Cable Interne
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 3625 3820 253 bellsouth.net, inc.
4323 1963 1097 400 Time Warner Telecom
18566 1957 372 219 Covad Communications
1785 1798 681 122 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1589 1544 632 Charter Communications
19262 1493 4920 308 Verizon Global Networks
7018 1372 7088 899 AT&T WorldNet Services
22773 1341 2897 87 Cox Communications, Inc.
2386 1272 537 912 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 1050 798 191 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 522 106 180 Tellcom Iletisim Hizmetleri
3292 518 2078 400 TDC Tele Danmark
6830 515 1780 321 UPC Distribution Services
20940 469 137 359 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 435 593 7 Uni2 Autonomous System
3320 425 8152 370 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 1513 278 157 TVCABLE BOGOTA
28573 1321 992 80 Types of queries are: POCs, o
8151 1267 2708 363 Uninet S.A. de C.V.
7303 990 506 170 Telecom Argentina Stet-France
6503 739 354 74 AVANTEL, S.A.
14420 677 54 80 Types of queries are: POCs, o
22047 564 310 15 Types of queries are: POCs, o
3816 533 231 93 COLOMBIA TELECOMUNICACIONES S
13489 518 262 126 Orbitel S.A. E.S.P.
7738 516 986 31 Telecomunicacoes da Bahia 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 796 147 38 LINKdotNET AS number
8452 782 445 11 TEDATA
15475 530 74 8 Nile Online
36992 307 415 16 Etisalat MISR
16637 293 441 87 Johnnic e-Ventures
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 218 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 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 3625 3820 253 bellsouth.net, inc.
23456 2678 650 1443 >>UNKNOWN<<
4323 1963 1097 400 Time Warner Telecom
18566 1957 372 219 Covad Communications
4766 1904 9492 620 Korea Telecom (KIX)
1785 1798 681 122 AppliedTheory Corporation
6478 1728 319 50 AT&T Worldnet Services
20115 1589 1544 632 Charter Communications
17974 1566 441 38 PT TELEKOMUNIKASI INDONESIA
7545 1537 301 86 TPG Internet Pty Ltd
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 1738 Covad Communications
6478 1728 1678 AT&T Worldnet Services
1785 1798 1676 AppliedTheory Corporation
4323 1963 1563 Time Warner Telecom
17974 1566 1528 PT TELEKOMUNIKASI INDONESIA
7545 1537 1451 TPG Internet Pty Ltd
10620 1513 1356 TVCABLE BOGOTA
4755 1472 1307 Videsh Sanchar Nigam Ltd. Aut
4766 1904 1284 Korea Telecom (KIX)
22773 1341 1254 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
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 7018 AT&T WorldNet Servic
26973 UNALLOCATED 12.39.155.0/24 1239 Sprint
26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic
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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /12:230
/13:462 /14:804 /15:1421 /16:12060 /17:6103 /18:10094
/19:19909 /20:26677 /21:26464 /22:34683 /23:33761 /24:188916
/25:380 /26:353 /27:183 /28:184 /29:277 /30:687
/31:76 /32:639
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 3625 bellsouth.net, inc.
18566 1908 1957 Covad Communications
6478 1682 1728 AT&T Worldnet Services
10620 1403 1513 TVCABLE BOGOTA
23456 1331 2678 >>UNKNOWN<<
11492 1087 1133 Cable One
1785 1050 1798 AppliedTheory Corporation
7011 1036 1133 Citizens Utilities
7029 936 1235 Alltel Information Services,
286 909 1050 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:286 2:70 4:20 5:1 6:3 8:337
12:1977 13:1 14:462 15:15 16:3 17:8
20:10 23:11 24:1627 27:782 31:436 32:124
33:4 34:2 37:1 38:736 40:103 41:2519
42:2 44:3 46:939 47:3 49:187 50:408
52:13 54:2 55:3 56:2 57:42 58:852
59:478 60:387 61:1124 62:1072 63:1951 64:3964
65:2252 66:4160 67:1911 68:1265 69:3109 70:749
71:378 72:1882 73:2 74:2405 75:323 76:349
77:922 78:710 79:477 80:1115 81:854 82:509
83:480 84:676 85:1090 86:600 87:765 88:336
89:1569 90:204 91:3849 92:527 93:1066 94:1341
95:858 96:446 97:250 98:886 99:36 101:65
103:58 106:6 107:11 108:83 109:1010 110:612
111:711 112:303 113:397 114:543 115:690 116:978
117:676 118:799 119:1140 120:309 121:690 122:1620
123:941 124:1267 125:1227 128:262 129:178 130:164
131:581 132:110 133:19 134:215 135:48 136:214
137:146 138:301 139:124 140:480 141:238 142:407
143:419 144:493 145:54 146:445 147:225 148:605
149:246 150:172 151:187 152:332 153:180 154:4
155:399 156:195 157:354 158:137 159:381 160:318
161:208 162:310 163:165 164:500 165:371 166:530
167:423 168:740 169:156 170:830 171:77 172:1
173:1622 174:586 175:372 176:134 177:168 178:1003
180:894 181:18 182:473 183:218 184:382 185:1
186:1210 187:783 188:869 189:918 190:4897 192:5871
193:4929 194:3554 195:3133 196:1242 197:19 198:3598
199:3930 200:5518 201:1481 202:8333 203:8365 204:4196
205:2344 206:2763 207:2826 208:3948 209:3482 210:2719
211:1402 212:2062 213:1739 214:745 215:69 216:4941
217:1662 218:552 219:367 220:1208 221:493 222:317
223:159
End of report
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