Routing Table Report 08:00 +10GMT Fri 25 Feb, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 343116
Prefixes after maximum aggregation: 156075
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 171726
Total ASes present in the Internet Routing Table: 35778
Prefixes per ASN: 9.59
Origin-only ASes present in the Internet Routing Table: 30960
Origin ASes announcing only one prefix: 14954
Transit ASes present in the Internet Routing Table: 4818
Transit-only ASes present in the Internet Routing Table: 108
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (50912) 24
Prefixes from unregistered ASNs in the Routing Table: 1326
Unregistered ASNs in the Routing Table: 265
Number of 32-bit ASNs allocated by the RIRs: 1141
Prefixes from 32-bit ASNs in the Routing Table: 1772
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 203
Number of addresses announced to Internet: 2383282688
Equivalent to 142 /8s, 14 /16s and 2 /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: 88.1
Total number of prefixes smaller than registry allocations: 140586
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82507
Total APNIC prefixes after maximum aggregation: 28123
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80160
Unique aggregates announced from the APNIC address blocks: 35915
APNIC Region origin ASes present in the Internet Routing Table: 4287
APNIC Prefixes per ASN: 18.70
APNIC Region origin ASes announcing only one prefix: 1217
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: 591823616
Equivalent to 35 /8s, 70 /16s and 131 /24s
Percentage of available APNIC address space announced: 75.1
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: 136906
Total ARIN prefixes after maximum aggregation: 70076
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 109705
Unique aggregates announced from the ARIN address blocks: 45013
ARIN Region origin ASes present in the Internet Routing Table: 14131
ARIN Prefixes per ASN: 7.76
ARIN Region origin ASes announcing only one prefix: 5379
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: 22
Number of ARIN addresses announced to Internet: 787459072
Equivalent to 46 /8s, 239 /16s and 172 /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: 82625
Total RIPE prefixes after maximum aggregation: 46685
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 75902
Unique aggregates announced from the RIPE address blocks: 49299
RIPE Region origin ASes present in the Internet Routing Table: 15339
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7783
RIPE Region transit ASes present in the Internet Routing Table: 2372
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE addresses announced to Internet: 460678400
Equivalent to 27 /8s, 117 /16s and 101 /24s
Percentage of available RIPE address space announced: 74.2
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: 31217
Total LACNIC prefixes after maximum aggregation: 7280
LACNIC Deaggregation factor: 4.29
Prefixes being announced from the LACNIC address blocks: 30179
Unique aggregates announced from the LACNIC address blocks: 15890
LACNIC Region origin ASes present in the Internet Routing Table: 1423
LACNIC Prefixes per ASN: 21.21
LACNIC Region origin ASes announcing only one prefix: 443
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: 80904960
Equivalent to 4 /8s, 210 /16s and 131 /24s
Percentage of available LACNIC address space announced: 53.6
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: 7405
Total AfriNIC prefixes after maximum aggregation: 1797
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5828
Unique aggregates announced from the AfriNIC address blocks: 1834
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.52
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: 21848832
Equivalent to 1 /8s, 77 /16s and 99 /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 1852 9492 580 Korea Telecom (KIX)
7545 1599 302 88 TPG Internet Pty Ltd
4755 1416 637 165 TATA Communications formerly
17974 1410 467 30 PT Telekomunikasi Indonesia
24560 1115 323 184 Bharti Airtel Ltd., Telemedia
9583 1044 76 487 Sify Limited
4808 943 2034 271 CNCGROUP IP network China169
17488 942 161 102 Hathway IP Over Cable Interne
18101 932 117 139 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 3692 3855 262 BellSouth.net Inc.
4323 2608 1125 406 tw telecom holdings, inc.
1785 1789 697 131 PaeTec Communications, Inc.
19262 1789 4955 283 Verizon Online LLC
20115 1528 1535 647 Charter Communications
6478 1521 296 89 AT&T Services, Inc.
18566 1444 320 155 Covad Communications Co.
7018 1380 6724 901 AT&T Services, Inc.
2386 1299 554 935 AT&T Data Communications Serv
11492 1285 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 470 267 15 Kazakhtelecom Data Network Ad
34984 464 98 144 BILISIM TELEKOM
3292 447 1996 388 TDC Data Networks
8866 439 133 23 Bulgarian Telecommunication C
20940 411 97 318 Akamai Technologies European
3320 409 7620 356 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 399 1803 313 >>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 1382 257 165 Types of queries are: POCs, o
8151 1212 2666 356 Uninet S.A. de C.V.
28573 1188 958 87 Types of queries are: POCs, o
6503 1158 354 74 Axtel, S.A.B. de C.V.
7303 883 463 132 Telecom Argentina S.A.
14420 641 57 94 CORPORACION NACIONAL DE TELEC
22047 547 310 15 Types of queries are: POCs, o
3816 510 221 100 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 765 445 11 TEDATA
24863 689 147 37 LINKdotNET AS number
15475 474 90 12 Nile Online
36992 300 271 14 Etisalat MISR
3741 264 987 226 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 135 416 82 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 3692 3855 262 BellSouth.net Inc.
4323 2608 1125 406 tw telecom holdings, inc.
4766 1852 9492 580 Korea Telecom (KIX)
1785 1789 697 131 PaeTec Communications, Inc.
19262 1789 4955 283 Verizon Online LLC
23456 1772 443 1003 32-bit ASN transition
7545 1599 302 88 TPG Internet Pty Ltd
20115 1528 1535 647 Charter Communications
6478 1521 296 89 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 2608 2202 tw telecom holdings, inc.
1785 1789 1658 PaeTec Communications, Inc.
7545 1599 1511 TPG Internet Pty Ltd
19262 1789 1506 Verizon Online LLC
6478 1521 1432 AT&T Services, Inc.
17974 1410 1380 PT Telekomunikasi Indonesia
18566 1444 1289 Covad Communications Co.
4766 1852 1272 Korea Telecom (KIX)
4755 1416 1251 TATA Communications formerly
10620 1382 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,
31.24.144.0/21 49855 PLUTEX GmbH
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
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 /8:20 /9:10 /10:26 /11:72 /12:216
/13:443 /14:764 /15:1369 /16:11494 /17:5635 /18:9309
/19:18971 /20:24444 /21:24888 /22:33176 /23:31565 /24:180251
/25:11 /26:17 /27:25 /28:157 /29:95 /30:45
/31:0 /32:113
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2278 3692 BellSouth.net Inc.
6478 1475 1521 AT&T Services, Inc.
18566 1422 1444 Covad Communications Co.
4323 1405 2608 tw telecom holdings, inc.
10620 1273 1382 Types of queries are: POCs, o
11492 1242 1285 CABLE ONE, INC.
7011 1056 1158 Frontier Communications of Am
1785 1054 1789 PaeTec Communications, Inc.
23456 1013 1772 32-bit ASN transition
6503 941 1158 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)
----------------------------------------------
1:237 2:46 4:13 5:1 8:335 12:2029
13:1 14:389 15:15 16:3 17:8 20:9
23:1 24:1493 27:596 32:56 33:4 34:2
37:1 38:702 40:101 41:2301 44:3 46:655
47:4 49:150 50:95 52:12 55:2 56:2
57:28 58:758 59:473 60:382 61:1012 62:1041
63:1935 64:3831 65:2359 66:4242 67:1785 68:1028
69:2923 70:736 71:399 72:2014 73:1 74:2348
75:291 76:345 77:854 78:697 79:449 80:1053
81:809 82:525 83:473 84:636 85:1045 86:576
87:755 88:355 89:1578 90:157 91:3538 92:494
93:1050 94:1206 95:768 96:449 97:251 98:787
99:33 101:27 107:3 108:88 109:931 110:482
111:713 112:305 113:366 114:479 115:648 116:929
117:678 118:679 119:1010 120:242 121:673 122:1620
123:1047 124:1274 125:1251 128:214 129:150 130:167
131:565 132:101 133:20 134:212 135:49 136:212
137:144 138:294 139:117 140:468 141:203 142:338
143:385 144:484 145:51 146:433 147:198 148:615
149:273 150:159 151:230 152:295 153:179 154:2
155:372 156:173 157:314 158:130 159:373 160:314
161:197 162:275 163:146 164:484 165:336 166:503
167:410 168:731 169:147 170:751 171:69 172:2
173:1316 174:528 175:319 176:1 177:16 178:763
180:805 181:2 182:350 183:248 184:214 186:1007
187:805 188:896 189:1049 190:4395 192:5760 193:4786
194:3485 195:2939 196:1188 197:3 198:3503 199:3804
200:5538 201:1571 202:8059 203:8335 204:4015 205:2294
206:2545 207:3001 208:3911 209:3469 210:2595 211:1338
212:1939 213:1739 214:775 215:63 216:4838 217:1638
218:534 219:373 220:1192 221:436 222:309 223:97
End of report
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