Routing Table Report 08:00 +10GMT Thu 17 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 344560
Prefixes after maximum aggregation: 157003
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 172916
Total ASes present in the Internet Routing Table: 35918
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 31090
Origin ASes announcing only one prefix: 14978
Transit ASes present in the Internet Routing Table: 4828
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1346
Unregistered ASNs in the Routing Table: 306
Number of 32-bit ASNs allocated by the RIRs: 1203
Prefixes from 32-bit ASNs in the Routing Table: 1887
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 193
Number of addresses announced to Internet: 2400043776
Equivalent to 143 /8s, 13 /16s and 195 /24s
Percentage of available address space announced: 64.8
Percentage of allocated address space announced: 64.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.3
Total number of prefixes smaller than registry allocations: 141138
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83105
Total APNIC prefixes after maximum aggregation: 28317
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80748
Unique aggregates announced from the APNIC address blocks: 36275
APNIC Region origin ASes present in the Internet Routing Table: 4302
APNIC Prefixes per ASN: 18.77
APNIC Region origin ASes announcing only one prefix: 1220
APNIC Region transit ASes present in the Internet Routing Table: 655
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 19
Number of APNIC addresses announced to Internet: 595036928
Equivalent to 35 /8s, 119 /16s and 139 /24s
Percentage of available APNIC address space announced: 75.5
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: 136909
Total ARIN prefixes after maximum aggregation: 70282
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109708
Unique aggregates announced from the ARIN address blocks: 45005
ARIN Region origin ASes present in the Internet Routing Table: 14180
ARIN Prefixes per ASN: 7.74
ARIN Region origin ASes announcing only one prefix: 5410
ARIN Region transit ASes present in the Internet Routing Table: 1393
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 796713472
Equivalent to 47 /8s, 124 /16s and 226 /24s
Percentage of available ARIN address space announced: 63.3
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: 83188
Total RIPE prefixes after maximum aggregation: 47202
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76571
Unique aggregates announced from the RIPE address blocks: 50029
RIPE Region origin ASes present in the Internet Routing Table: 15424
RIPE Prefixes per ASN: 4.96
RIPE Region origin ASes announcing only one prefix: 7782
RIPE Region transit ASes present in the Internet Routing Table: 2392
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 464852992
Equivalent to 27 /8s, 181 /16s and 24 /24s
Percentage of available RIPE address space announced: 74.9
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: 31808
Total LACNIC prefixes after maximum aggregation: 7287
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 30849
Unique aggregates announced from the LACNIC address blocks: 16144
LACNIC Region origin ASes present in the Internet Routing Table: 1427
LACNIC Prefixes per ASN: 21.62
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 81441536
Equivalent to 4 /8s, 218 /16s and 179 /24s
Percentage of available LACNIC address space announced: 53.9
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: 6997
Total AfriNIC prefixes after maximum aggregation: 1691
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5496
Unique aggregates announced from the AfriNIC address blocks: 1744
AfriNIC Region origin ASes present in the Internet Routing Table: 411
AfriNIC Prefixes per ASN: 13.37
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 84
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC addresses announced to Internet: 21789184
Equivalent to 1 /8s, 76 /16s and 122 /24s
Percentage of available AfriNIC address space announced: 32.5
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 1864 9500 589 Korea Telecom (KIX)
7545 1553 301 84 TPG Internet Pty Ltd
4755 1469 653 157 TATA Communications formerly
17974 1427 467 30 PT Telekomunikasi Indonesia
24560 1129 324 186 Bharti Airtel Ltd., Telemedia
9583 1048 77 488 Sify Limited
9829 1001 868 53 National Internet Backbone
17488 935 162 96 Hathway IP Over Cable Interne
18101 934 117 141 Reliance Infocom Ltd Internet
4808 932 2031 270 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 3678 3839 260 BellSouth.net Inc.
4323 2582 1109 403 tw telecom holdings, inc.
1785 1796 681 131 PaeTec Communications, Inc.
18566 1551 327 193 Covad Communications Co.
6478 1546 299 73 AT&T Services, Inc.
20115 1531 1538 646 Charter Communications
19262 1488 4939 299 Verizon Online LLC
7018 1383 6868 902 AT&T Services, Inc.
11492 1319 237 64 CABLE ONE, INC.
2386 1289 537 929 AT&T Data Communications Serv
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
9116 542 328 31 Goldenlines main autonomous s
6830 513 1780 317 UPC Broadband
9198 470 267 15 Kazakhtelecom Data Network Ad
3292 453 2013 391 TDC Data Networks
34984 451 95 201 BILISIM TELEKOM
8866 444 133 24 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 407 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 403 577 6 France Telecom Espana SA
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 1392 259 163 Types of queries are: POCs, o
8151 1226 2685 364 Uninet S.A. de C.V.
28573 1223 965 82 Types of queries are: POCs, o
6503 1174 354 74 Axtel, S.A.B. de C.V.
7303 898 463 135 Telecom Argentina S.A.
14420 635 52 88 CORPORACION NACIONAL DE TELEC
22047 543 310 15 Types of queries are: POCs, o
3816 515 225 96 Types of queries are: POCs, o
11172 485 99 81 Alestra, S. de R.L. de C.V.
7738 479 922 30 Telecomunicacoes da Bahia S.A
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 792 445 11 TEDATA
24863 770 147 37 LINKdotNET AS number
15475 421 90 8 Nile Online
36992 296 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
24835 231 78 10 RAYA Telecom - Egypt
33776 230 13 5 Starcomms Nigeria Limited
6713 204 199 11 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 146 439 87 MTN Network Solutions
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 3678 3839 260 BellSouth.net Inc.
4323 2582 1109 403 tw telecom holdings, inc.
23456 1887 477 1061 32-bit ASN transition
4766 1864 9500 589 Korea Telecom (KIX)
1785 1796 681 131 PaeTec Communications, Inc.
7545 1553 301 84 TPG Internet Pty Ltd
18566 1551 327 193 Covad Communications Co.
6478 1546 299 73 AT&T Services, Inc.
20115 1531 1538 646 Charter Communications
19262 1488 4939 299 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2582 2179 tw telecom holdings, inc.
1785 1796 1665 PaeTec Communications, Inc.
6478 1546 1473 AT&T Services, Inc.
7545 1553 1469 TPG Internet Pty Ltd
17974 1427 1397 PT Telekomunikasi Indonesia
18566 1551 1358 Covad Communications Co.
4755 1469 1312 TATA Communications formerly
4766 1864 1275 Korea Telecom (KIX)
11492 1319 1255 CABLE ONE, INC.
10620 1392 1229 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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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.
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
31.185.0.0/21 48573 LLC NFS Telecom
31.185.8.0/21 43801 RIPE Network Coordination Cen
31.185.104.0/21 8881 KomTel routing policies
41.57.192.0/18 22750 BCSNET
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 /9:11 /10:26 /11:73 /12:217
/13:446 /14:765 /15:1368 /16:11504 /17:5638 /18:9301
/19:19067 /20:24682 /21:25143 /22:33410 /23:31734 /24:180706
/25:11 /26:17 /27:24 /28:151 /29:94 /30:48
/31:0 /32:104
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2268 3678 BellSouth.net Inc.
18566 1530 1551 Covad Communications Co.
6478 1500 1546 AT&T Services, Inc.
4323 1391 2582 tw telecom holdings, inc.
10620 1283 1392 Types of queries are: POCs, o
11492 1276 1319 CABLE ONE, INC.
7011 1063 1163 Frontier Communications of Am
23456 1060 1887 32-bit ASN transition
1785 1058 1796 PaeTec Communications, Inc.
6503 952 1174 Axtel, S.A.B. de C.V.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:271 2:71 4:14 5:1 8:339 12:2026
13:1 14:394 15:15 16:3 17:8 20:10
23:3 24:1541 27:633 31:2 32:58 33:4
34:2 37:1 38:712 39:1 40:101 41:1998
44:3 46:729 47:4 49:161 50:105 52:13
55:3 56:2 57:29 58:760 59:483 60:385
61:1028 62:992 63:1918 64:3845 65:2351 66:4352
67:1776 68:1078 69:2898 70:705 71:359 72:1931
73:1 74:2313 75:284 76:345 77:844 78:696
79:456 80:1092 81:818 82:516 83:471 84:644
85:1041 86:575 87:772 88:353 89:1571 90:174
91:3641 92:500 93:1045 94:1218 95:787 96:443
97:250 98:790 99:34 101:44 106:1 107:4
108:72 109:899 110:477 111:699 112:308 113:367
114:480 115:685 116:942 117:667 118:711 119:1036
120:250 121:687 122:1603 123:1032 124:1280 125:1264
128:213 129:163 130:165 131:558 132:100 133:20
134:209 135:49 136:210 137:142 138:298 139:105
140:463 141:173 142:360 143:379 144:466 145:52
146:430 147:209 148:625 149:274 150:153 151:187
152:295 153:180 154:2 155:375 156:179 157:319
158:131 159:367 160:313 161:202 162:277 163:151
164:490 165:349 166:499 167:410 168:710 169:155
170:753 171:69 172:2 173:1244 174:518 175:331
177:48 178:807 180:784 181:4 182:351 183:245
184:227 185:1 186:1048 187:850 188:928 189:1021
190:4711 192:5696 193:4791 194:3490 195:2948 196:1152
197:14 198:3478 199:3831 200:5573 201:1583 202:8088
203:8359 204:4033 205:2288 206:2538 207:2946 208:3895
209:3450 210:2635 211:1343 212:1957 213:1701 214:752
215:65 216:4828 217:1649 218:544 219:372 220:1191
221:453 222:316 223:97
End of report
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