Routing Table Report 08:00 +10GMT Wed 02 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 343507
Prefixes after maximum aggregation: 156248
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171876
Total ASes present in the Internet Routing Table: 35806
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 30978
Origin ASes announcing only one prefix: 14943
Transit ASes present in the Internet Routing Table: 4828
Transit-only ASes present in the Internet Routing Table: 109
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (23456) 21
Prefixes from unregistered ASNs in the Routing Table: 1341
Unregistered ASNs in the Routing Table: 274
Number of 32-bit ASNs allocated by the RIRs: 1155
Prefixes from 32-bit ASNs in the Routing Table: 1796
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 199
Number of addresses announced to Internet: 2384393472
Equivalent to 142 /8s, 30 /16s and 245 /24s
Percentage of available address space announced: 64.3
Percentage of allocated address space announced: 64.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 88.4
Total number of prefixes smaller than registry allocations: 140733
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82603
Total APNIC prefixes after maximum aggregation: 28172
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80256
Unique aggregates announced from the APNIC address blocks: 36026
APNIC Region origin ASes present in the Internet Routing Table: 4290
APNIC Prefixes per ASN: 18.71
APNIC Region origin ASes announcing only one prefix: 1213
APNIC Region transit ASes present in the Internet Routing Table: 660
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 591748352
Equivalent to 35 /8s, 69 /16s and 93 /24s
Percentage of available APNIC address space announced: 75.0
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: 136737
Total ARIN prefixes after maximum aggregation: 70102
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109486
Unique aggregates announced from the ARIN address blocks: 44887
ARIN Region origin ASes present in the Internet Routing Table: 14130
ARIN Prefixes per ASN: 7.75
ARIN Region origin ASes announcing only one prefix: 5375
ARIN Region transit ASes present in the Internet Routing Table: 1386
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787546880
Equivalent to 46 /8s, 241 /16s and 3 /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: 82714
Total RIPE prefixes after maximum aggregation: 46773
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75985
Unique aggregates announced from the RIPE address blocks: 49305
RIPE Region origin ASes present in the Internet Routing Table: 15365
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7785
RIPE Region transit ASes present in the Internet Routing Table: 2384
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 461459968
Equivalent to 27 /8s, 129 /16s and 82 /24s
Percentage of available RIPE address space announced: 74.3
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: 31464
Total LACNIC prefixes after maximum aggregation: 7264
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30486
Unique aggregates announced from the LACNIC address blocks: 16055
LACNIC Region origin ASes present in the Internet Routing Table: 1422
LACNIC Prefixes per ASN: 21.44
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 19
Number of LACNIC addresses announced to Internet: 81128704
Equivalent to 4 /8s, 213 /16s and 237 /24s
Percentage of available LACNIC address space announced: 53.7
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: 7520
Total AfriNIC prefixes after maximum aggregation: 1827
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5921
Unique aggregates announced from the AfriNIC address blocks: 1831
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.74
AfriNIC Region origin ASes announcing only one prefix: 131
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: 21870336
Equivalent to 1 /8s, 77 /16s and 183 /24s
Percentage of available AfriNIC address space announced: 32.6
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 1866 9493 588 Korea Telecom (KIX)
7545 1587 301 84 TPG Internet Pty Ltd
4755 1420 638 165 TATA Communications formerly
17974 1409 467 30 PT Telekomunikasi Indonesia
24560 1116 323 185 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 940 2032 269 CNCGROUP IP network China169
17488 938 161 102 Hathway IP Over Cable Interne
18101 934 117 140 Reliance Infocom Ltd Internet
9829 895 761 45 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 3688 3855 263 BellSouth.net Inc.
4323 2601 1125 404 tw telecom holdings, inc.
1785 1790 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Online LLC
20115 1528 1535 647 Charter Communications
6478 1524 296 105 AT&T Services, Inc.
18566 1444 320 155 Covad Communications Co.
7018 1380 6740 901 AT&T Services, Inc.
2386 1297 538 940 AT&T Data Communications Serv
11492 1283 236 70 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 512 1780 318 UPC Broadband
9198 469 267 15 Kazakhtelecom Data Network Ad
34984 465 98 145 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 442 133 23 Bulgarian Telecommunication C
20940 415 98 319 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 400 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 1383 257 166 Types of queries are: POCs, o
8151 1216 2685 356 Uninet S.A. de C.V.
28573 1206 961 82 Types of queries are: POCs, o
6503 1164 354 74 Axtel, S.A.B. de C.V.
7303 886 463 134 Telecom Argentina S.A.
14420 642 56 93 CORPORACION NACIONAL DE TELEC
22047 540 310 15 Types of queries are: POCs, o
3816 513 223 100 Types of queries are: POCs, o
7738 479 922 30 Telecomunicacoes da Bahia S.A
14117 467 36 37 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 796 445 11 TEDATA
24863 768 147 37 LINKdotNET AS number
15475 474 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 265 987 227 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 218 78 10 RAYA Telecom - Egypt
6713 205 199 12 Itissalat Al-MAGHRIB
29571 192 17 11 Ci Telecom Autonomous system
16637 147 439 88 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 3688 3855 263 BellSouth.net Inc.
4323 2601 1125 404 tw telecom holdings, inc.
4766 1866 9493 588 Korea Telecom (KIX)
23456 1796 445 1003 32-bit ASN transition
1785 1790 697 131 PaeTec Communications, Inc.
19262 1786 4954 284 Verizon Online LLC
7545 1587 301 84 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1524 296 105 AT&T Services, Inc.
18566 1444 320 155 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 2601 2197 tw telecom holdings, inc.
1785 1790 1659 PaeTec Communications, Inc.
7545 1587 1503 TPG Internet Pty Ltd
19262 1786 1502 Verizon Online LLC
6478 1524 1419 AT&T Services, Inc.
17974 1409 1379 PT Telekomunikasi Indonesia
18566 1444 1289 Covad Communications Co.
4766 1866 1278 Korea Telecom (KIX)
4755 1420 1255 TATA Communications formerly
10620 1383 1217 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 *
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,
31.24.224.0/22 39458 Real Hosts Ltd
31.184.128.0/18 51074 Gostaresh Ertebatate Mabna Co
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
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 /9:10 /10:26 /11:72 /12:216
/13:443 /14:765 /15:1370 /16:11494 /17:5638 /18:9336
/19:18988 /20:24465 /21:24923 /22:33218 /23:31647 /24:180421
/25:11 /26:17 /27:25 /28:154 /29:94 /30:43
/31:0 /32:111
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2275 3688 BellSouth.net Inc.
6478 1478 1524 AT&T Services, Inc.
18566 1422 1444 Covad Communications Co.
4323 1400 2601 tw telecom holdings, inc.
10620 1274 1383 Types of queries are: POCs, o
11492 1240 1283 CABLE ONE, INC.
7011 1056 1157 Frontier Communications of Am
1785 1055 1790 PaeTec Communications, Inc.
23456 1016 1796 32-bit ASN transition
6503 946 1164 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)
----------------------------------------------
1:259 2:45 4:13 5:1 8:336 12:2026
13:1 14:390 15:15 16:3 17:8 20:9
23:1 24:1493 27:588 31:1 32:56 33:4
34:2 37:1 38:702 40:101 41:2321 44:3
46:635 47:4 49:154 50:99 52:12 55:2
56:2 57:28 58:758 59:474 60:382 61:1012
62:1044 63:1924 64:3821 65:2356 66:4246 67:1776
68:1067 69:2872 70:730 71:400 72:1990 73:1
74:2345 75:292 76:347 77:840 78:696 79:446
80:1068 81:812 82:526 83:464 84:634 85:1047
86:575 87:758 88:354 89:1578 90:158 91:3541
92:494 93:1053 94:1207 95:759 96:450 97:251
98:788 99:33 101:29 107:4 108:118 109:901
110:474 111:713 112:303 113:386 114:486 115:651
116:938 117:678 118:673 119:1028 120:246 121:669
122:1614 123:1053 124:1272 125:1255 128:214 129:150
130:167 131:557 132:101 133:20 134:204 135:49
136:212 137:143 138:294 139:114 140:464 141:203
142:356 143:379 144:486 145:51 146:432 147:201
148:615 149:272 150:160 151:230 152:295 153:180
154:2 155:377 156:174 157:315 158:128 159:375
160:313 161:200 162:278 163:144 164:486 165:341
166:502 167:409 168:722 169:154 170:753 171:69
172:2 173:1229 174:507 175:319 176:1 177:33
178:773 180:800 181:4 182:376 183:242 184:213
186:1027 187:827 188:905 189:1049 190:4571 192:5725
193:4787 194:3501 195:2950 196:1193 197:4 198:3507
199:3807 200:5571 201:1575 202:8045 203:8346 204:4012
205:2278 206:2544 207:2999 208:3916 209:3445 210:2587
211:1341 212:1947 213:1738 214:757 215:63 216:4835
217:1652 218:536 219:376 220:1196 221:435 222:308
223:101
End of report
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