Routing Table Report 08:00 +10GMT Sat 15 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 371196
Prefixes after maximum aggregation: 167453
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 184953
Total ASes present in the Internet Routing Table: 37390
Prefixes per ASN: 9.93
Origin-only ASes present in the Internet Routing Table: 32275
Origin ASes announcing only one prefix: 15499
Transit ASes present in the Internet Routing Table: 5115
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2204
Unregistered ASNs in the Routing Table: 872
Number of 32-bit ASNs allocated by the RIRs: 1853
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3450
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 88
Number of addresses announced to Internet: 2500917760
Equivalent to 149 /8s, 16 /16s and 250 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 154723
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89130
Total APNIC prefixes after maximum aggregation: 29605
APNIC Deaggregation factor: 3.01
Prefixes being announced from the APNIC address blocks: 86510
Unique aggregates announced from the APNIC address blocks: 37946
APNIC Region origin ASes present in the Internet Routing Table: 4529
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 684
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 627974144
Equivalent to 37 /8s, 110 /16s and 32 /24s
Percentage of available APNIC address space announced: 79.6
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: 144153
Total ARIN prefixes after maximum aggregation: 73754
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116464
Unique aggregates announced from the ARIN address blocks: 47912
ARIN Region origin ASes present in the Internet Routing Table: 14645
ARIN Prefixes per ASN: 7.95
ARIN Region origin ASes announcing only one prefix: 5650
ARIN Region transit ASes present in the Internet Routing Table: 1493
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: 804583168
Equivalent to 47 /8s, 244 /16s and 247 /24s
Percentage of available ARIN address space announced: 63.9
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: 90959
Total RIPE prefixes after maximum aggregation: 50535
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83630
Unique aggregates announced from the RIPE address blocks: 54045
RIPE Region origin ASes present in the Internet Routing Table: 16034
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7976
RIPE Region transit ASes present in the Internet Routing Table: 2502
Average RIPE Region AS path length visible: 3.4
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 490788608
Equivalent to 29 /8s, 64 /16s and 215 /24s
Percentage of available RIPE address space announced: 79.1
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: 34389
Total LACNIC prefixes after maximum aggregation: 7757
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33932
Unique aggregates announced from the LACNIC address blocks: 17867
LACNIC Region origin ASes present in the Internet Routing Table: 1527
LACNIC Prefixes per ASN: 22.22
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 265
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 90750208
Equivalent to 5 /8s, 104 /16s and 189 /24s
Percentage of available LACNIC address space announced: 60.1
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: 8459
Total AfriNIC prefixes after maximum aggregation: 2006
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6541
Unique aggregates announced from the AfriNIC address blocks: 1954
AfriNIC Region origin ASes present in the Internet Routing Table: 483
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 149
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 27803136
Equivalent to 1 /8s, 168 /16s and 62 /24s
Percentage of available AfriNIC address space announced: 41.4
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 1935 11055 653 Korea Telecom (KIX)
17974 1655 512 38 PT Telekomunikasi Indonesia
7545 1609 303 86 TPG Internet Pty Ltd
4755 1525 379 172 TATA Communications formerly
9829 1165 989 28 National Internet Backbone
9583 1091 80 504 Sify Limited
24560 1018 342 229 Bharti Airtel Ltd., Telemedia
7552 983 1062 11 Vietel Corporation
18101 954 165 143 Reliance Infocom Ltd Internet
4808 936 1990 258 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 3548 3815 222 BellSouth.net Inc.
7029 2152 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
1785 1839 680 121 PaeTec Communications, Inc.
4323 1631 1099 393 tw telecom holdings, inc.
20115 1590 1541 635 Charter Communications
22773 1460 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1388 250 672 Mediacom Communications Corp
7018 1351 7113 858 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 1438 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 581 108 179 BILISIM TELEKOM
20940 546 183 420 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 502 8169 384 Deutsche Telekom AG
3292 484 2082 410 TDC Data Networks
12479 483 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
29049 424 31 55 AzerSat LLC.
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 1681 310 155 Types of queries are: POCs, o
28573 1367 1015 68 Types of queries are: POCs, o
8151 1282 2842 344 Uninet S.A. de C.V.
7303 1164 683 175 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 568 72 79 Telconet S.A
6503 560 450 70 Axtel, S.A.B. de C.V.
7738 553 1050 31 Telecomunicacoes da Bahia S.A
3816 527 231 100 Types of queries are: POCs, o
11172 521 101 96 Alestra, S. de R.L. 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
24863 796 146 33 LINKdotNET AS number
8452 650 446 12 TEDATA
15475 444 74 8 Nile Online
36992 298 415 19 Etisalat MISR
3741 278 938 230 The Internet Solution
15706 244 32 6 Sudatel Internet Exchange Aut
6713 242 519 14 Itissalat Al-MAGHRIB
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 199 28 59 Vodacom Internet Company
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 3548 3815 222 BellSouth.net Inc.
7029 2152 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
4766 1935 11055 653 Korea Telecom (KIX)
1785 1839 680 121 PaeTec Communications, Inc.
10620 1681 310 155 Types of queries are: POCs, o
17974 1655 512 38 PT Telekomunikasi Indonesia
4323 1631 1099 393 tw telecom holdings, inc.
7545 1609 303 86 TPG Internet Pty Ltd
20115 1590 1541 635 Charter Communications
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 2152 1942 Windstream Communications Inc
18566 2097 1921 Covad Communications Co.
1785 1839 1718 PaeTec Communications, Inc.
17974 1655 1617 PT Telekomunikasi Indonesia
10620 1681 1526 Types of queries are: POCs, o
7545 1609 1523 TPG Internet Pty Ltd
8402 1438 1425 Corbina telecom
22773 1460 1360 Cox Communications Inc.
4755 1525 1353 TATA Communications formerly
28573 1367 1299 Types of queries are: POCs, o
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
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
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /12:236
/13:464 /14:806 /15:1420 /16:11949 /17:6008 /18:9990
/19:20024 /20:27193 /21:27186 /22:36548 /23:34664 /24:194084
/25:12 /26:18 /27:20 /28:144 /29:119 /30:55
/31:0 /32:116
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3548 BellSouth.net Inc.
18566 2047 2097 Covad Communications Co.
7029 1823 2152 Windstream Communications Inc
10620 1576 1681 Types of queries are: POCs, o
8402 1415 1438 Corbina telecom
30036 1350 1388 Mediacom Communications Corp
11492 1115 1152 CABLE ONE, INC.
1785 1056 1839 PaeTec Communications, Inc.
7011 1048 1166 Frontier Communications of Am
22773 948 1460 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:401 2:478 4:15 5:1 6:3 8:354
12:1955 13:1 14:532 15:11 16:3 17:7
20:9 23:58 24:1680 27:959 31:594 32:60
33:4 34:2 36:4 38:746 40:108 41:2598
42:50 44:3 46:990 47:3 49:268 50:444
52:13 55:7 56:2 57:36 58:832 59:487
60:361 61:1032 62:1094 63:1924 64:4070 65:2303
66:4240 67:1960 68:1149 69:3224 70:879 71:377
72:1868 74:2572 75:377 76:345 77:896 78:860
79:481 80:1125 81:825 82:505 83:539 84:637
85:1118 86:404 87:890 88:356 89:1591 90:269
91:4199 92:527 93:1509 94:1300 95:1024 96:432
97:283 98:909 99:37 101:90 103:360 106:70
107:66 108:54 109:1057 110:633 111:791 112:320
113:460 114:592 115:670 116:867 117:687 118:852
119:1225 120:337 121:677 122:1557 123:1017 124:1302
125:1330 128:208 129:170 130:160 131:584 132:113
133:21 134:210 135:54 136:211 137:136 138:289
139:117 140:466 141:293 142:371 143:425 144:489
145:63 146:467 147:216 148:616 149:257 150:158
151:192 152:450 153:178 154:6 155:387 156:204
157:328 158:151 159:407 160:321 161:204 162:336
163:164 164:505 165:363 166:536 167:435 168:739
169:143 170:872 171:84 172:4 173:1690 174:668
175:421 176:272 177:322 178:1053 180:1097 181:36
182:622 183:208 184:371 185:1 186:1275 187:673
188:929 189:850 190:5080 192:5866 193:5028 194:3542
195:3096 196:1233 197:170 198:3575 199:4117 200:5442
201:1654 202:8206 203:8272 204:4216 205:2349 206:2585
207:2753 208:4040 209:3567 210:2605 211:1446 212:2067
213:1769 214:790 215:90 216:4957 217:1617 218:552
219:329 220:1193 221:495 222:295 223:274
End of report