Routing Table Report 00:00 GMT Wed 29 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: 367206
Prefixes after maximum aggregation: 165623
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 179689
Total ASes present in the Internet Routing Table: 38070
Prefixes per ASN: 9.65
Origin-only ASes present in the Internet Routing Table: 31705
Origin ASes announcing only one prefix: 15184
Transit ASes present in the Internet Routing Table: 5158
Transit-only ASes present in the Internet Routing Table: 134
Average AS path length visible in the Internet Routing Table: 3.9
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 3746
Unregistered ASNs in the Routing Table: 495
Number of 32-bit ASNs allocated by the RIRs: 1502
Number of 32-bit ASNs visible in the Routing Table: 1207
Prefixes from 32-bit ASNs in the Routing Table: 2777
Special use prefixes present in the Routing Table: 78
Prefixes being announced from unallocated address space: 135
Number of addresses announced to Internet: 2492802111
Equivalent to 148 /8s, 149 /16s and 36 /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: 152760
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88022
Total APNIC prefixes after maximum aggregation: 29098
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 84863
Unique aggregates announced from the APNIC address blocks: 37080
APNIC Region origin ASes present in the Internet Routing Table: 4486
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 708
Average APNIC Region AS path length visible: 4.3
Max APNIC Region AS path length visible: 24
Number of APNIC region 32-bit ASNs visible in the Routing Table: 52
Number of APNIC addresses announced to Internet: 621058241
Equivalent to 37 /8s, 4 /16s and 152 /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: 144425
Total ARIN prefixes after maximum aggregation: 74529
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 116065
Unique aggregates announced from the ARIN address blocks: 46578
ARIN Region origin ASes present in the Internet Routing Table: 14465
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5517
ARIN Region transit ASes present in the Internet Routing Table: 1494
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 13
Number of ARIN addresses announced to Internet: 819319696
Equivalent to 48 /8s, 213 /16s and 211 /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: 89552
Total RIPE prefixes after maximum aggregation: 49327
RIPE Deaggregation factor: 1.82
Prefixes being announced from the RIPE address blocks: 82132
Unique aggregates announced from the RIPE address blocks: 52467
RIPE Region origin ASes present in the Internet Routing Table: 15796
RIPE Prefixes per ASN: 5.20
RIPE Region origin ASes announcing only one prefix: 7824
RIPE Region transit ASes present in the Internet Routing Table: 2500
Average RIPE Region AS path length visible: 4.0
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 888
Number of RIPE addresses announced to Internet: 479126732
Equivalent to 28 /8s, 142 /16s and 228 /24s
Percentage of available RIPE address space announced: 77.2
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: 33694
Total LACNIC prefixes after maximum aggregation: 7598
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32769
Unique aggregates announced from the LACNIC address blocks: 16939
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 22.29
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.1
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 250
Number of LACNIC addresses announced to Internet: 85660936
Equivalent to 5 /8s, 27 /16s and 21 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8434
Total AfriNIC prefixes after maximum aggregation: 1975
AfriNIC Deaggregation factor: 4.27
Prefixes being announced from the AfriNIC address blocks: 6486
Unique aggregates announced from the AfriNIC address blocks: 1989
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 14.04
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 106
Average AfriNIC Region AS path length visible: 3.9
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: 24272384
Equivalent to 1 /8s, 114 /16s and 94 /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 1902 9508 624 Korea Telecom (KIX)
17974 1862 469 43 PT TELEKOMUNIKASI INDONESIA
7545 1541 301 84 TPG Internet Pty Ltd
4755 1488 375 166 Videsh Sanchar Nigam Ltd. Aut
24560 1153 336 187 Bharti Airtel Ltd.
9829 1054 888 54 BSNL National Internet Backbo
9583 1053 77 503 Sify Limited
4808 1029 2083 296 CNCGROUP IP network: China169
17488 972 185 103 Hathway IP Over Cable Interne
18101 933 116 140 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 3623 3819 245 bellsouth.net, inc.
18566 1957 372 223 Covad Communications
1785 1799 681 122 AppliedTheory Corporation
4323 1662 1098 400 Time Warner Telecom
20115 1588 1531 634 Charter Communications
6478 1501 276 524 AT&T Worldnet Services
19262 1452 4806 372 Verizon Global Networks
7029 1388 979 210 Windstream Communications Inc
7018 1378 7086 906 AT&T WorldNet Services
22773 1345 2897 87 Cox 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 1045 798 192 KPNQwest Backbone AS
9116 540 326 31 Goldenlines main autonomous s
34984 534 106 185 Tellcom Iletisim Hizmetleri
3292 523 2080 405 TDC Tele Danmark
6830 515 1780 319 UPC Distribution Services
20940 473 138 364 Akamai Technologies European
8866 446 134 26 Bulgarian Telecommunication C
29049 446 33 46 AzerSat LLC.
12479 437 593 7 Uni2 Autonomous System
35819 429 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 1532 281 157 TVCABLE BOGOTA
8151 1434 2724 361 Uninet S.A. de C.V.
28573 1270 993 78 Types of queries are: POCs, o
7303 992 507 171 Telecom Argentina Stet-France
6503 752 354 75 AVANTEL, S.A.
14420 684 55 83 Types of queries are: POCs, o
22047 576 322 17 Types of queries are: POCs, o
3816 533 231 93 COLOMBIA TELECOMUNICACIONES S
27947 522 54 52 Telconet S.A
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
8452 789 445 11 TEDATA
24863 771 147 37 LINKdotNET AS number
15475 524 74 8 Nile Online
36992 313 415 14 Etisalat MISR
16637 295 441 87 Johnnic e-Ventures
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 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 3623 3819 245 bellsouth.net, inc.
23456 2777 682 1501 >>UNKNOWN<<
18566 1957 372 223 Covad Communications
4766 1902 9508 624 Korea Telecom (KIX)
17974 1862 469 43 PT TELEKOMUNIKASI INDONESIA
1785 1799 681 122 AppliedTheory Corporation
4323 1662 1098 400 Time Warner Telecom
20115 1588 1531 634 Charter Communications
7545 1541 301 84 TPG Internet Pty Ltd
10620 1532 281 157 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 1862 1819 PT TELEKOMUNIKASI INDONESIA
18566 1957 1734 Covad Communications
1785 1799 1677 AppliedTheory Corporation
7545 1541 1457 TPG Internet Pty Ltd
10620 1532 1375 TVCABLE BOGOTA
4755 1488 1322 Videsh Sanchar Nigam Ltd. Aut
4766 1902 1278 Korea Telecom (KIX)
23456 2777 1276 >>UNKNOWN<<
4323 1662 1262 Time Warner Telecom
22773 1345 1258 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 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.
41.190.32.0/23 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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:462 /14:807 /15:1427 /16:12092 /17:6128 /18:10052
/19:19970 /20:26778 /21:26579 /22:35007 /23:34068 /24:190461
/25:392 /26:361 /27:186 /28:357 /29:284 /30:699
/31:66 /32:655
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2227 3623 bellsouth.net, inc.
18566 1907 1957 Covad Communications
6478 1468 1501 AT&T Worldnet Services
10620 1427 1532 TVCABLE BOGOTA
23456 1364 2777 >>UNKNOWN<<
11492 1090 1136 Cable One
7029 1082 1388 Windstream Communications Inc
7011 1052 1153 Citizens Utilities
1785 1051 1799 AppliedTheory Corporation
286 903 1045 KPNQwest Backbone AS
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:317 2:59 4:20 5:1 6:3 8:337
9:1 12:1982 13:1 14:467 15:15 16:3
17:8 20:10 23:12 24:1661 27:806 31:485
32:128 33:4 34:2 36:4 37:1 38:740
39:3 40:103 41:2568 42:10 44:3 46:996
47:3 49:197 50:430 52:13 54:2 55:2
56:2 57:43 58:866 59:478 60:386 61:1184
62:1058 63:1955 64:3971 65:2286 66:3904 67:1937
68:1273 69:3135 70:802 71:392 72:1923 73:2
74:2435 75:332 76:346 77:933 78:717 79:483
80:1127 81:858 82:511 83:468 84:678 85:1090
86:570 87:778 88:341 89:1570 90:209 91:3903
92:539 93:1083 94:1353 95:858 96:447 97:254
98:903 99:36 101:77 103:94 106:9 107:17
108:80 109:1021 110:619 111:711 112:306 113:411
114:547 115:669 116:982 117:671 118:858 119:1144
120:308 121:691 122:1610 123:963 124:1299 125:1242
128:248 129:175 130:168 131:579 132:112 133:21
134:215 135:48 136:215 137:136 138:298 139:126
140:478 141:239 142:406 143:422 144:483 145:54
146:450 147:226 148:662 149:247 150:165 151:191
152:331 153:180 154:4 155:399 156:195 157:352
158:136 159:453 160:314 161:210 162:310 163:165
164:504 165:372 166:537 167:431 168:739 169:158
170:843 171:78 172:1 173:1648 174:609 175:373
176:141 177:156 178:994 180:896 181:20 182:487
183:224 184:390 185:1 186:1248 187:731 188:897
189:935 190:4916 192:5918 193:4988 194:3547 195:3162
196:1234 197:41 198:3602 199:3965 200:5565 201:1507
202:8363 203:8433 204:4214 205:2349 206:2757 207:2819
208:3966 209:3479 210:2691 211:1462 212:2144 213:1781
214:771 215:70 216:4947 217:1648 218:548 219:365
220:1207 221:493 222:361 223:177
End of report
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