Routing Table Report 00:00 GMT Sun 15 Jan, 2012
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: 394701
Prefixes after maximum aggregation: 170046
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191072
Total ASes present in the Internet Routing Table: 39844
Prefixes per ASN: 9.91
Origin-only ASes present in the Internet Routing Table: 32704
Origin ASes announcing only one prefix: 15545
Transit ASes present in the Internet Routing Table: 5289
Transit-only ASes present in the Internet Routing Table: 133
Average AS path length visible in the Internet Routing Table: 4.0
Max AS path length visible: 30
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 6627
Unregistered ASNs in the Routing Table: 1084
Number of 32-bit ASNs allocated by the RIRs: 2183
Number of 32-bit ASNs visible in the Routing Table: 1851
Prefixes from 32-bit ASNs in the Routing Table: 4437
Special use prefixes present in the Routing Table: 88
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2509744870
Equivalent to 149 /8s, 151 /16s and 170 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 165922
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 94746
Total APNIC prefixes after maximum aggregation: 30398
APNIC Deaggregation factor: 3.12
Prefixes being announced from the APNIC address blocks: 91160
Unique aggregates announced from the APNIC address blocks: 38867
APNIC Region origin ASes present in the Internet Routing Table: 4625
APNIC Prefixes per ASN: 19.71
APNIC Region origin ASes announcing only one prefix: 1270
APNIC Region transit ASes present in the Internet Routing Table: 732
Average APNIC Region AS path length visible: 4.5
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 130
Number of APNIC addresses announced to Internet: 634273536
Equivalent to 37 /8s, 206 /16s and 63 /24s
Percentage of available APNIC address space announced: 80.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 150160
Total ARIN prefixes after maximum aggregation: 77268
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 121957
Unique aggregates announced from the ARIN address blocks: 49132
ARIN Region origin ASes present in the Internet Routing Table: 14858
ARIN Prefixes per ASN: 8.21
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1533
Average ARIN Region AS path length visible: 3.5
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 14
Number of ARIN addresses announced to Internet: 804828936
Equivalent to 47 /8s, 248 /16s and 183 /24s
Percentage of available ARIN address space announced: 64.0
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: 98809
Total RIPE prefixes after maximum aggregation: 52131
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 89839
Unique aggregates announced from the RIPE address blocks: 55629
RIPE Region origin ASes present in the Internet Routing Table: 16263
RIPE Prefixes per ASN: 5.52
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2551
Average RIPE Region AS path length visible: 4.2
Max RIPE Region AS path length visible: 30
Number of RIPE region 32-bit ASNs visible in the Routing Table: 1289
Number of RIPE addresses announced to Internet: 497518476
Equivalent to 29 /8s, 167 /16s and 135 /24s
Percentage of available RIPE address space announced: 80.1
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: 37852
Total LACNIC prefixes after maximum aggregation: 8088
LACNIC Deaggregation factor: 4.68
Prefixes being announced from the LACNIC address blocks: 37334
Unique aggregates announced from the LACNIC address blocks: 19276
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 23.89
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 287
Average LACNIC Region AS path length visible: 4.2
Max LACNIC Region AS path length visible: 26
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 414
Number of LACNIC addresses announced to Internet: 95404040
Equivalent to 5 /8s, 175 /16s and 192 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8464
Total AfriNIC prefixes after maximum aggregation: 2088
AfriNIC Deaggregation factor: 4.05
Prefixes being announced from the AfriNIC address blocks: 6494
Unique aggregates announced from the AfriNIC address blocks: 2119
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 12.73
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 4.2
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4
Number of AfriNIC addresses announced to Internet: 30840064
Equivalent to 1 /8s, 214 /16s and 149 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1913 11097 660 Korea Telecom (KIX)
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
7545 1623 303 86 TPG Internet Pty Ltd
4755 1513 385 154 Videsh Sanchar Nigam Ltd. Aut
7552 1425 1064 7 Vietel Corporation
9829 1163 989 28 BSNL National Internet Backbo
9583 1097 80 502 Sify Limited
24560 1011 384 167 Bharti Airtel Ltd.
17488 945 161 224 Hathway IP Over Cable Interne
18101 944 130 154 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 3456 3807 208 bellsouth.net, inc.
7029 3249 1033 215 Windstream Communications Inc
18566 2093 382 177 Covad Communications
1785 1865 680 123 AppliedTheory Corporation
20115 1617 1552 619 Charter Communications
4323 1599 1046 379 Time Warner Telecom
22773 1517 2909 108 Cox Communications, Inc.
30036 1489 264 696 Mediacom Communications Corp
19262 1388 4683 401 Verizon Global Networks
7018 1308 7042 858 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
8402 1628 480 15 Corbina telecom
15557 1096 2161 64 LDCOM NETWORKS
286 1094 806 198 KPNQwest Backbone AS
2118 927 99 14 EUnet/RELCOM Autonomous Syste
31148 660 35 9 FreeNet ISP
6830 645 1928 413 UPC Distribution Services
34984 639 188 174 Tellcom Iletisim Hizmetleri
8551 568 360 81 Bezeq International
20940 567 183 454 Akamai Technologies European
12479 551 636 53 Uni2 Autonomous System
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 1738 321 159 TVCABLE BOGOTA
28573 1571 1066 77 Types of queries are: POCs, o
8151 1502 2978 339 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina Stet-France
27947 635 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 238 92 COLOMBIA TELECOMUNICACIONES S
6503 550 434 70 AVANTEL, S.A.
10481 547 429 25 Prima 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 1029 958 13 TEDATA
24863 795 146 36 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
15706 239 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 YEBO-AS
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 Johnnic e-Ventures
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 3456 3807 208 bellsouth.net, inc.
7029 3249 1033 215 Windstream Communications Inc
18566 2093 382 177 Covad Communications
4766 1913 11097 660 Korea Telecom (KIX)
1785 1865 680 123 AppliedTheory Corporation
10620 1738 321 159 TVCABLE BOGOTA
17974 1718 503 36 PT TELEKOMUNIKASI INDONESIA
8402 1628 480 15 Corbina telecom
7545 1623 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 Charter Communications
Complete listing at http://thyme.rand.apnic.net/rviews/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3249 3034 Windstream Communications Inc
18566 2093 1916 Covad Communications
1785 1865 1742 AppliedTheory Corporation
17974 1718 1682 PT TELEKOMUNIKASI INDONESIA
8402 1628 1613 Corbina telecom
10620 1738 1579 TVCABLE BOGOTA
7545 1623 1537 TPG Internet Pty Ltd
28573 1571 1494 Types of queries are: POCs, o
7552 1425 1418 Vietel Corporation
22773 1517 1409 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
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
17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic
17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies,
16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic
32873 UNALLOCATED 12.46.100.0/23 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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
37.46.192.0/21 47869 Netrouting Data Facilities
37.56.0.0/16 47147 VisNetwork Media SRL
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 /8:20 /9:12 /10:27 /11:81 /12:234
/13:463 /14:822 /15:1490 /16:12259 /17:6405 /18:10566
/19:20739 /20:29172 /21:28911 /22:39268 /23:36940 /24:205553
/25:67 /26:82 /27:108 /28:298 /29:111 /30:531
/31:52 /32:490
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3249 Windstream Communications Inc
6389 2116 3456 bellsouth.net, inc.
18566 2042 2093 Covad Communications
10620 1633 1738 TVCABLE BOGOTA
8402 1607 1628 Corbina telecom
30036 1448 1489 Mediacom Communications Corp
11492 1115 1152 Cable One
1785 1066 1865 AppliedTheory Corporation
15557 1046 1096 LDCOM NETWORKS
7011 1042 1159 Citizens Utilities
Complete listing at http://thyme.rand.apnic.net/rviews/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:496 2:462 4:19 5:1 6:3 8:371
12:1953 13:1 14:586 15:11 16:3 17:6
20:9 23:102 24:1715 27:1177 31:864 32:124
33:2 34:2 36:8 37:87 38:797 39:1
40:114 41:2894 42:87 43:1 44:3 46:1221
47:3 49:320 50:511 52:13 55:7 56:2
57:51 58:951 59:491 60:347 61:1193 62:959
63:1980 64:4137 65:2313 66:4406 67:2033 68:1340
69:3261 70:966 71:427 72:1836 73:1 74:2703
75:459 76:327 77:950 78:900 79:520 80:1192
81:869 82:566 83:533 84:589 85:1157 86:750
87:918 88:354 89:1621 90:266 91:4429 92:534
93:1537 94:1357 95:1058 96:398 97:296 98:807
99:38 100:18 101:250 103:651 106:10 107:133
108:131 109:1430 110:704 111:840 112:428 113:539
114:623 115:760 116:903 117:738 118:923 119:1257
120:358 121:695 122:1626 123:1055 124:1362 125:1354
128:534 129:195 130:205 131:588 132:161 133:21
134:229 135:59 136:213 137:151 138:287 139:157
140:489 141:260 142:381 143:389 144:503 145:68
146:485 147:233 148:688 149:278 150:166 151:193
152:447 153:170 154:7 155:409 156:210 157:368
158:155 159:511 160:320 161:222 162:337 163:188
164:529 165:412 166:562 167:456 168:854 169:146
170:830 171:103 172:4 173:1796 174:596 175:443
176:343 177:437 178:1187 180:1247 181:43 182:704
183:266 184:431 185:1 186:1491 187:831 188:1036
189:1158 190:5352 192:6018 193:5487 194:3984 195:3378
196:1289 197:168 198:3638 199:4312 200:5646 201:1706
202:8509 203:8574 204:4355 205:2428 206:2765 207:2812
208:4045 209:3577 210:2765 211:1488 212:2020 213:1830
214:781 215:94 216:4972 217:1486 218:564 219:339
220:1252 221:556 222:326 223:270
End of report
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