Routing Table Report 08:00 +10GMT Thu 12 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 384328
Prefixes after maximum aggregation: 166687
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 190938
Total ASes present in the Internet Routing Table: 37805
Prefixes per ASN: 10.17
Origin-only ASes present in the Internet Routing Table: 32563
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5242
Transit-only ASes present in the Internet Routing Table: 124
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2824
Unregistered ASNs in the Routing Table: 1116
Number of 32-bit ASNs allocated by the RIRs: 2171
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4433
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2525488640
Equivalent to 150 /8s, 135 /16s and 230 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
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: 161093
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91734
Total APNIC prefixes after maximum aggregation: 30068
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89095
Unique aggregates announced from the APNIC address blocks: 38950
APNIC Region origin ASes present in the Internet Routing Table: 4580
APNIC Prefixes per ASN: 19.45
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 3.9
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 633402624
Equivalent to 37 /8s, 192 /16s and 245 /24s
Percentage of available APNIC address space announced: 80.3
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: 146061
Total ARIN prefixes after maximum aggregation: 74585
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118374
Unique aggregates announced from the ARIN address blocks: 49058
ARIN Region origin ASes present in the Internet Routing Table: 14778
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1505
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804680448
Equivalent to 47 /8s, 246 /16s and 115 /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: 96694
Total RIPE prefixes after maximum aggregation: 51969
RIPE Deaggregation factor: 1.86
Prefixes being announced from the RIPE address blocks: 88630
Unique aggregates announced from the RIPE address blocks: 55772
RIPE Region origin ASes present in the Internet Routing Table: 16228
RIPE Prefixes per ASN: 5.46
RIPE Region origin ASes announcing only one prefix: 7991
RIPE Region transit ASes present in the Internet Routing Table: 2575
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 497056512
Equivalent to 29 /8s, 160 /16s and 123 /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: 36428
Total LACNIC prefixes after maximum aggregation: 7953
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 36185
Unique aggregates announced from the LACNIC address blocks: 19189
LACNIC Region origin ASes present in the Internet Routing Table: 1549
LACNIC Prefixes per ASN: 23.36
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 278
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95258368
Equivalent to 5 /8s, 173 /16s and 135 /24s
Percentage of available LACNIC address space announced: 63.1
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: 8273
Total AfriNIC prefixes after maximum aggregation: 2040
AfriNIC Deaggregation factor: 4.06
Prefixes being announced from the AfriNIC address blocks: 6330
Unique aggregates announced from the AfriNIC address blocks: 2034
AfriNIC Region origin ASes present in the Internet Routing Table: 505
AfriNIC Prefixes per ASN: 12.53
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 113
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 30781696
Equivalent to 1 /8s, 213 /16s and 177 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1914 11097 661 Korea Telecom (KIX)
17974 1642 503 37 PT Telekomunikasi Indonesia
7545 1627 303 86 TPG Internet Pty Ltd
4755 1501 385 157 TATA Communications formerly
9829 1157 989 28 National Internet Backbone
9583 1118 81 492 Sify Limited
7552 1103 1062 11 Vietel Corporation
24560 1010 384 167 Bharti Airtel Ltd., Telemedia
18101 977 131 156 Reliance Infocom Ltd Internet
4808 976 1946 276 CNCGROUP IP network China169
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-APNIC
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3468 3811 210 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 122 PaeTec Communications, Inc.
20115 1617 1552 619 Charter Communications
4323 1607 1080 385 tw telecom holdings, inc.
22773 1513 2909 107 Cox Communications Inc.
30036 1486 263 693 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1310 7046 861 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-ARIN
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8402 1561 480 15 Corbina telecom
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 644 1928 413 UPC Broadband
34984 637 188 173 BILISIM TELEKOM
20940 559 181 449 Akamai Technologies European
8551 554 360 81 Bezeq International
12479 547 636 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 Deutsche Telekom AG
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-RIPE
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
10620 1726 319 158 Types of queries are: POCs, o
28573 1570 1065 77 Types of queries are: POCs, o
8151 1320 2978 337 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 611 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 550 237 91 Types of queries are: POCs, o
11172 535 102 101 Alestra, S. de R.L. de C.V.
6503 527 434 68 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-LACNIC
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
8452 1022 958 13 TEDATA
24863 792 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
33776 240 13 8 Starcomms Nigeria Limited
29571 216 17 12 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 MTN Network Solutions
36923 157 20 4 Swift Networks Limited
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet-AFRINIC
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv MaxAgg Description
6389 3468 3811 210 BellSouth.net Inc.
7029 3256 1042 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1914 11097 661 Korea Telecom (KIX)
1785 1867 680 122 PaeTec Communications, Inc.
10620 1726 319 158 Types of queries are: POCs, o
17974 1642 503 37 PT Telekomunikasi Indonesia
7545 1627 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 Charter Communications
4323 1607 1080 385 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
7029 3256 3043 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1745 PaeTec Communications, Inc.
17974 1642 1605 PT Telekomunikasi Indonesia
10620 1726 1568 Types of queries are: POCs, o
8402 1561 1546 Corbina telecom
7545 1627 1541 TPG Internet Pty Ltd
28573 1570 1493 Types of queries are: POCs, o
22773 1513 1406 Cox Communications Inc.
4755 1501 1344 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/london/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
65333 PRIVATE 10.0.0.0/8 0 *
32805 UNALLOCATED 12.1.225.0/24 7018 AT&T Services, Inc.
15132 UNALLOCATED 12.9.150.0/24 7018 AT&T Services, Inc.
32567 UNALLOCATED 12.14.170.0/24 7018 AT&T Services, Inc.
16504 UNALLOCATED 12.18.155.0/24 30170 Optic Fusion
32567 UNALLOCATED 12.25.107.0/24 4323 tw telecom holdings,
30031 UNALLOCATED 12.27.122.0/24 7018 AT&T Services, Inc.
26095 UNALLOCATED 12.34.8.0/24 7018 AT&T Services, Inc.
21861 UNALLOCATED 12.37.59.0/24 7018 AT&T Services, Inc.
25639 UNALLOCATED 12.41.169.0/24 7018 AT&T Services, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-badAS
Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------
Prefix Origin AS Description
10.0.0.0/8 65333 Internet Assigned Numbers Aut
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
169.254.0.0/16 65333 Internet Assigned Numbers Aut
172.16.0.0/12 65333 Internet Assigned Numbers Aut
192.0.2.0/24 65333 Internet Assigned Numbers Aut
192.168.0.0/16 0 *
198.18.0.0/15 65333 Internet Assigned Numbers Aut
Complete listing at http://thyme.rand.apnic.net/london/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
24.157.16.0/20 36423 San Juan Cable, LLC
37.34.48.0/21 35470 XL Network
Complete listing at http://thyme.rand.apnic.net/london/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 /12:237
/13:465 /14:815 /15:1455 /16:12061 /17:6127 /18:10148
/19:20297 /20:27980 /21:28367 /22:38529 /23:35816 /24:201345
/25:11 /26:21 /27:19 /28:154 /29:133 /30:67
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3256 Windstream Communications Inc
6389 2120 3468 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1621 1726 Types of queries are: POCs, o
8402 1540 1561 Corbina telecom
30036 1445 1486 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1066 1867 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
7011 1042 1159 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:487 2:440 4:15 5:1 6:3 8:369
12:1950 13:1 14:579 15:11 16:3 17:6
20:9 23:95 24:1706 27:1169 31:868 32:62
33:2 34:2 36:8 37:82 38:787 40:114
41:2836 42:85 44:3 46:1213 47:3 49:316
50:504 52:13 55:6 56:2 57:37 58:900
59:482 60:340 61:1081 62:951 63:1961 64:4093
65:2295 66:4364 67:2001 68:1153 69:3148 70:916
71:427 72:1787 74:2643 75:446 76:320 77:937
78:893 79:495 80:1187 81:861 82:541 83:534
84:584 85:1164 86:754 87:905 88:337 89:1590
90:261 91:4416 92:535 93:1529 94:1353 95:1052
96:389 97:296 98:794 99:38 100:18 101:128
103:625 106:9 107:132 108:107 109:1428 110:685
111:835 112:401 113:506 114:603 115:740 116:852
117:705 118:900 119:1230 120:379 121:648 122:1587
123:1046 124:1302 125:1302 128:473 129:174 130:185
131:585 132:153 133:21 134:218 135:58 136:211
137:148 138:288 139:143 140:465 141:262 142:362
143:389 144:493 145:68 146:479 147:224 148:615
149:276 150:159 151:193 152:444 153:170 154:6
155:409 156:207 157:336 158:155 159:438 160:319
161:205 162:334 163:178 164:524 165:393 166:562
167:456 168:826 169:146 170:827 171:101 172:4
173:1777 174:591 175:419 176:377 177:452 178:1173
180:1221 181:43 182:675 183:266 184:430 185:1
186:1493 187:827 188:1030 189:1160 190:5256 192:5935
193:5461 194:3951 195:3301 196:1265 197:91 198:3573
199:4248 200:5490 201:1695 202:8221 203:8512 204:4266
205:2411 206:2619 207:2735 208:4006 209:3530 210:2675
211:1462 212:1984 213:1813 214:837 215:92 216:4915
217:1475 218:557 219:332 220:1215 221:548 222:298
223:251
End of report
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