Routing Table Report 08:00 +10GMT Sat 19 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 341803
Prefixes after maximum aggregation: 155788
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 171446
Total ASes present in the Internet Routing Table: 35745
Prefixes per ASN: 9.56
Origin-only ASes present in the Internet Routing Table: 30930
Origin ASes announcing only one prefix: 14977
Transit ASes present in the Internet Routing Table: 4815
Transit-only ASes present in the Internet Routing Table: 110
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (22394) 24
Prefixes from unregistered ASNs in the Routing Table: 1315
Unregistered ASNs in the Routing Table: 263
Number of 32-bit ASNs allocated by the RIRs: 1131
Prefixes from 32-bit ASNs in the Routing Table: 1739
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2413755392
Equivalent to 143 /8s, 222 /16s and 252 /24s
Percentage of available address space announced: 65.1
Percentage of allocated address space announced: 65.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.0
Total number of prefixes smaller than registry allocations: 139835
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82147
Total APNIC prefixes after maximum aggregation: 28004
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 79794
Unique aggregates announced from the APNIC address blocks: 35800
APNIC Region origin ASes present in the Internet Routing Table: 4277
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 658
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 589436160
Equivalent to 35 /8s, 34 /16s and 21 /24s
Percentage of available APNIC address space announced: 74.8
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: 136873
Total ARIN prefixes after maximum aggregation: 70004
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 109725
Unique aggregates announced from the ARIN address blocks: 44951
ARIN Region origin ASes present in the Internet Routing Table: 14122
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5384
ARIN Region transit ASes present in the Internet Routing Table: 1387
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 27
Number of ARIN addresses announced to Internet: 787336704
Equivalent to 46 /8s, 237 /16s and 206 /24s
Percentage of available ARIN address space announced: 62.6
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: 82371
Total RIPE prefixes after maximum aggregation: 46580
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75712
Unique aggregates announced from the RIPE address blocks: 49087
RIPE Region origin ASes present in the Internet Routing Table: 15323
RIPE Prefixes per ASN: 4.94
RIPE Region origin ASes announcing only one prefix: 7802
RIPE Region transit ASes present in the Internet Routing Table: 2366
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 460260096
Equivalent to 27 /8s, 111 /16s and 3 /24s
Percentage of available RIPE address space announced: 74.1
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: 31268
Total LACNIC prefixes after maximum aggregation: 7289
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 30204
Unique aggregates announced from the LACNIC address blocks: 15953
LACNIC Region origin ASes present in the Internet Routing Table: 1420
LACNIC Prefixes per ASN: 21.27
LACNIC Region origin ASes announcing only one prefix: 443
LACNIC Region transit ASes present in the Internet Routing Table: 249
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC addresses announced to Internet: 80777216
Equivalent to 4 /8s, 208 /16s and 144 /24s
Percentage of available LACNIC address space announced: 53.5
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: 6724
Total AfriNIC prefixes after maximum aggregation: 1845
AfriNIC Deaggregation factor: 3.64
Prefixes being announced from the AfriNIC address blocks: 5150
Unique aggregates announced from the AfriNIC address blocks: 1890
AfriNIC Region origin ASes present in the Internet Routing Table: 433
AfriNIC Prefixes per ASN: 11.89
AfriNIC Region origin ASes announcing only one prefix: 132
AfriNIC Region transit ASes present in the Internet Routing Table: 93
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21797120
Equivalent to 1 /8s, 76 /16s and 153 /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 1840 9491 575 Korea Telecom (KIX)
7545 1611 302 87 TPG Internet Pty Ltd
4755 1417 638 164 TATA Communications formerly
17974 1408 467 30 PT Telekomunikasi Indonesia
24560 1111 323 184 Bharti Airtel Ltd., Telemedia
9583 1043 76 487 Sify Limited
17488 950 162 103 Hathway IP Over Cable Interne
4808 939 2034 271 CNCGROUP IP network China169
18101 929 117 141 Reliance Infocom Ltd Internet
9829 898 763 42 National Internet Backbone
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 3694 3839 261 BellSouth.net Inc.
4323 2623 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
1785 1786 697 131 PaeTec Communications, Inc.
20115 1527 1534 646 Charter Communications
6478 1510 295 78 AT&T Services, Inc.
18566 1430 319 157 Covad Communications Co.
7018 1379 6708 894 AT&T Services, Inc.
2386 1299 554 936 AT&T Data Communications Serv
11492 1280 236 73 CABLE ONE, 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
9116 542 328 31 Goldenlines main autonomous s
6830 511 1764 317 UPC Broadband
9198 468 267 15 Kazakhtelecom Data Network Ad
34984 463 98 143 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 440 133 23 Bulgarian Telecommunication C
20940 415 99 321 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 401 1803 314 >>UNKNOWN<<
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 1370 254 164 Types of queries are: POCs, o
28573 1214 961 82 Types of queries are: POCs, o
8151 1211 2661 355 Uninet S.A. de C.V.
6503 1156 354 74 Axtel, S.A.B. de C.V.
7303 878 462 130 Telecom Argentina S.A.
14420 638 57 92 CORPORACION NACIONAL DE TELEC
22047 545 310 15 Types of queries are: POCs, o
3816 511 221 96 Types of queries are: POCs, o
7738 478 922 30 Telecomunicacoes da Bahia S.A
14117 476 37 42 Telefonica del Sur 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 678 445 11 TEDATA
24863 564 147 37 LINKdotNET AS number
3741 264 987 226 The Internet Solution
24835 220 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
33776 194 12 15 Starcomms Nigeria Limited
29571 192 17 11 Ci Telecom Autonomous system
36992 184 269 20 Etisalat MISR
15475 169 78 39 Nile Online
16637 150 422 86 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 3694 3839 261 BellSouth.net Inc.
4323 2623 1125 406 tw telecom holdings, inc.
19262 1843 4955 283 Verizon Online LLC
4766 1840 9491 575 Korea Telecom (KIX)
1785 1786 697 131 PaeTec Communications, Inc.
23456 1739 434 978 32-bit ASN transition
7545 1611 302 87 TPG Internet Pty Ltd
20115 1527 1534 646 Charter Communications
6478 1510 295 78 AT&T Services, Inc.
18566 1430 319 157 Covad Communications Co.
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 2623 2217 tw telecom holdings, inc.
1785 1786 1655 PaeTec Communications, Inc.
19262 1843 1560 Verizon Online LLC
7545 1611 1524 TPG Internet Pty Ltd
6478 1510 1432 AT&T Services, Inc.
17974 1408 1378 PT Telekomunikasi Indonesia
18566 1430 1273 Covad Communications Co.
4766 1840 1265 Korea Telecom (KIX)
4755 1417 1253 TATA Communications formerly
11492 1280 1207 CABLE ONE, INC.
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 *
16927 UNALLOCATED 12.0.252.0/23 7018 AT&T Services, Inc.
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.
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
5.0.0.0/16 12654 RIPE NCC RIS Project
5.1.0.0/21 12654 RIPE NCC RIS Project
5.1.24.0/24 12654 RIPE NCC RIS Project
24.129.192.0/19 7922 Comcast Cable Communications,
37.0.0.0/16 12654 RIPE NCC RIS Project
37.1.0.0/21 12654 RIPE NCC RIS Project
37.1.24.0/24 12654 RIPE NCC RIS Project
39.0.0.0/8 237 Merit Network Inc.
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /8:22 /9:10 /10:26 /11:72 /12:216
/13:444 /14:763 /15:1367 /16:11475 /17:5622 /18:9290
/19:18936 /20:24415 /21:24790 /22:32828 /23:31390 /24:179679
/25:11 /26:17 /27:25 /28:156 /29:95 /30:45
/31:0 /32:109
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2281 3694 BellSouth.net Inc.
6478 1464 1510 AT&T Services, Inc.
4323 1412 2623 tw telecom holdings, inc.
18566 1408 1430 Covad Communications Co.
10620 1261 1370 Types of queries are: POCs, o
11492 1237 1280 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1053 1786 PaeTec Communications, Inc.
23456 1005 1739 32-bit ASN transition
19262 954 1843 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:196 2:43 4:13 5:1 8:334 12:2029
13:1 14:388 15:15 16:3 17:8 20:9
23:1 24:1487 27:583 32:56 33:4 34:2
37:1 38:702 40:101 41:2208 44:3 46:617
47:4 49:148 50:93 52:12 55:2 56:2
57:29 58:762 59:473 60:389 61:1013 62:952
63:1934 64:3800 65:2344 66:4225 67:1781 68:1027
69:2948 70:735 71:403 72:2020 73:1 74:2342
75:292 76:347 77:871 78:708 79:447 80:1047
81:807 82:524 83:478 84:529 85:1043 86:559
87:761 88:355 89:1572 90:157 91:3512 92:488
93:1040 94:1209 95:767 96:448 97:251 98:822
99:33 101:27 107:3 108:88 109:928 110:479
111:693 112:305 113:366 114:478 115:650 116:914
117:681 118:669 119:1007 120:240 121:676 122:1622
123:1051 124:1268 125:1252 128:213 129:150 130:166
131:565 132:102 133:20 134:213 135:49 136:212
137:143 138:292 139:117 140:470 141:203 142:342
143:373 144:483 145:51 146:431 147:199 148:618
149:275 150:152 151:230 152:293 153:180 154:2
155:350 156:173 157:313 158:129 159:373 160:313
161:199 162:273 163:146 164:486 165:336 166:502
167:422 168:736 169:149 170:749 171:69 172:11
173:1320 174:530 175:316 176:1 177:9 178:781
180:805 182:350 183:247 184:211 186:1008 187:810
188:891 189:1067 190:4386 192:5753 193:4794 194:3480
195:2941 196:1191 197:3 198:3494 199:3802 200:5568
201:1577 202:8054 203:8338 204:4028 205:2320 206:2535
207:3008 208:3896 209:3467 210:2592 211:1332 212:1936
213:1694 214:764 215:62 216:4863 217:1535 218:528
219:377 220:1193 221:436 222:309 223:96
End of report
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