Routing Table Report 08:00 +10GMT Sat 05 Mar, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 344148
Prefixes after maximum aggregation: 156469
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 172091
Total ASes present in the Internet Routing Table: 35836
Prefixes per ASN: 9.60
Origin-only ASes present in the Internet Routing Table: 30991
Origin ASes announcing only one prefix: 14947
Transit ASes present in the Internet Routing Table: 4845
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: 26
Max AS path prepend of ASN (23456) 20
Prefixes from unregistered ASNs in the Routing Table: 1357
Unregistered ASNs in the Routing Table: 285
Number of 32-bit ASNs allocated by the RIRs: 1169
Prefixes from 32-bit ASNs in the Routing Table: 1804
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 258
Number of addresses announced to Internet: 2472693504
Equivalent to 147 /8s, 98 /16s and 79 /24s
Percentage of available address space announced: 66.7
Percentage of allocated address space announced: 66.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 89.1
Total number of prefixes smaller than registry allocations: 141138
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 82762
Total APNIC prefixes after maximum aggregation: 28292
APNIC Deaggregation factor: 2.93
Prefixes being announced from the APNIC address blocks: 80371
Unique aggregates announced from the APNIC address blocks: 36071
APNIC Region origin ASes present in the Internet Routing Table: 4293
APNIC Prefixes per ASN: 18.72
APNIC Region origin ASes announcing only one prefix: 1216
APNIC Region transit ASes present in the Internet Routing Table: 659
Average APNIC Region AS path length visible: 4.2
Max APNIC Region AS path length visible: 26
Number of APNIC addresses announced to Internet: 594253824
Equivalent to 35 /8s, 107 /16s and 152 /24s
Percentage of available APNIC address space announced: 75.4
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: 137107
Total ARIN prefixes after maximum aggregation: 70084
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 109855
Unique aggregates announced from the ARIN address blocks: 44943
ARIN Region origin ASes present in the Internet Routing Table: 14140
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5391
ARIN Region transit ASes present in the Internet Routing Table: 1394
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN addresses announced to Internet: 787450880
Equivalent to 46 /8s, 239 /16s and 140 /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: 82864
Total RIPE prefixes after maximum aggregation: 46875
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 76133
Unique aggregates announced from the RIPE address blocks: 49204
RIPE Region origin ASes present in the Internet Routing Table: 15384
RIPE Prefixes per ASN: 4.95
RIPE Region origin ASes announcing only one prefix: 7772
RIPE Region transit ASes present in the Internet Routing Table: 2386
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE addresses announced to Internet: 478703360
Equivalent to 28 /8s, 136 /16s and 111 /24s
Percentage of available RIPE address space announced: 77.1
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: 31451
Total LACNIC prefixes after maximum aggregation: 7260
LACNIC Deaggregation factor: 4.33
Prefixes being announced from the LACNIC address blocks: 30469
Unique aggregates announced from the LACNIC address blocks: 16088
LACNIC Region origin ASes present in the Internet Routing Table: 1419
LACNIC Prefixes per ASN: 21.47
LACNIC Region origin ASes announcing only one prefix: 440
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: 81168640
Equivalent to 4 /8s, 214 /16s and 137 /24s
Percentage of available LACNIC address space announced: 53.8
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: 7485
Total AfriNIC prefixes after maximum aggregation: 1818
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 5879
Unique aggregates announced from the AfriNIC address blocks: 1959
AfriNIC Region origin ASes present in the Internet Routing Table: 431
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 128
AfriNIC Region transit ASes present in the Internet Routing Table: 95
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC addresses announced to Internet: 21858560
Equivalent to 1 /8s, 77 /16s and 137 /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 1863 9493 590 Korea Telecom (KIX)
7545 1580 301 83 TPG Internet Pty Ltd
4755 1420 638 165 TATA Communications formerly
17974 1404 467 30 PT Telekomunikasi Indonesia
24560 1106 320 189 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 934 117 141 Reliance Infocom Ltd Internet
9829 898 764 46 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 3684 3855 261 BellSouth.net Inc.
4323 2581 1125 404 tw telecom holdings, inc.
19262 1829 4953 282 Verizon Online LLC
1785 1793 697 131 PaeTec Communications, Inc.
6478 1531 297 94 AT&T Services, Inc.
20115 1527 1534 650 Charter Communications
18566 1518 325 176 Covad Communications Co.
7018 1381 6740 902 AT&T Services, Inc.
2386 1300 539 940 AT&T Data Communications Serv
11492 1290 236 67 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 466 98 146 BILISIM TELEKOM
3292 448 1996 389 TDC Data Networks
8866 442 133 23 Bulgarian Telecommunication C
20940 419 99 323 Akamai Technologies European
3320 405 7604 353 Deutsche Telekom AG
8551 405 355 38 Bezeq International
702 401 1803 315 >>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 1387 258 162 Types of queries are: POCs, o
8151 1219 2680 357 Uninet S.A. de C.V.
28573 1209 961 83 Types of queries are: POCs, o
6503 1165 354 74 Axtel, S.A.B. de C.V.
7303 888 463 134 Telecom Argentina S.A.
14420 644 56 93 CORPORACION NACIONAL DE TELEC
22047 541 310 15 Types of queries are: POCs, o
3816 516 225 95 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 793 445 11 TEDATA
24863 756 147 37 LINKdotNET AS number
15475 440 90 10 Nile Online
36992 301 271 14 Etisalat MISR
3741 266 987 228 The Internet Solution
33776 230 13 5 Starcomms Nigeria Limited
24835 222 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
6713 187 191 17 Itissalat Al-MAGHRIB
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 3684 3855 261 BellSouth.net Inc.
4323 2581 1125 404 tw telecom holdings, inc.
4766 1863 9493 590 Korea Telecom (KIX)
19262 1829 4953 282 Verizon Online LLC
23456 1804 466 1018 32-bit ASN transition
1785 1793 697 131 PaeTec Communications, Inc.
7545 1580 301 83 TPG Internet Pty Ltd
6478 1531 297 94 AT&T Services, Inc.
20115 1527 1534 650 Charter Communications
18566 1518 325 176 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 2581 2177 tw telecom holdings, inc.
1785 1793 1662 PaeTec Communications, Inc.
19262 1829 1547 Verizon Online LLC
7545 1580 1497 TPG Internet Pty Ltd
6478 1531 1437 AT&T Services, Inc.
17974 1404 1374 PT Telekomunikasi Indonesia
18566 1518 1342 Covad Communications Co.
4766 1863 1273 Korea Telecom (KIX)
4755 1420 1255 TATA Communications formerly
10620 1387 1225 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
1.5.0.0/16 38639 for assignment to JPNIC membe
1.6.0.0/15 38639 for assignment to JPNIC membe
1.8.0.0/16 38639 for assignment to JPNIC membe
1.20.0.0/16 38639 for assignment to JPNIC membe
1.32.0.0/16 38639 for assignment to JPNIC membe
1.37.0.0/16 38639 for assignment to JPNIC membe
1.187.0.0/16 38639 for assignment to JPNIC membe
14.0.0.0/24 38639 for assignment to JPNIC membe
14.0.1.0/24 38639 for assignment to JPNIC membe
14.0.2.0/23 38639 for assignment to JPNIC membe
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 /8:25 /9:10 /10:26 /11:73 /12:218
/13:445 /14:763 /15:1371 /16:11514 /17:5624 /18:9307
/19:19050 /20:24526 /21:25033 /22:33338 /23:31690 /24:180679
/25:11 /26:17 /27:24 /28:154 /29:95 /30:48
/31:0 /32:107
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2272 3684 BellSouth.net Inc.
18566 1496 1518 Covad Communications Co.
6478 1485 1531 AT&T Services, Inc.
4323 1389 2581 tw telecom holdings, inc.
10620 1278 1387 Types of queries are: POCs, o
11492 1247 1290 CABLE ONE, INC.
7011 1057 1158 Frontier Communications of Am
1785 1055 1793 PaeTec Communications, Inc.
23456 1014 1804 32-bit ASN transition
6503 947 1165 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)
----------------------------------------------
1:262 2:63 4:14 5:1 8:339 9:1
12:2028 13:1 14:400 15:15 16:3 17:8
20:9 23:1 24:1507 27:590 31:3 32:56
33:4 34:2 36:2 37:1 38:695 39:1
40:101 41:2298 42:13 44:3 46:678 47:4
49:164 50:179 52:13 55:3 56:2 57:30
58:753 59:474 60:382 61:1013 62:1022 63:1917
64:3821 65:2340 66:4311 67:1778 68:1066 69:2875
70:698 71:406 72:1997 73:1 74:2349 75:291
76:343 77:846 78:693 79:444 80:1057 81:793
82:525 83:466 84:634 85:1047 86:574 87:765
88:357 89:1567 90:169 91:3576 92:495 93:1054
94:1224 95:780 96:458 97:253 98:811 99:33
101:46 106:1 107:4 108:127 109:909 110:469
111:709 112:307 113:387 114:489 115:663 116:939
117:674 118:676 119:1039 120:253 121:672 122:1618
123:1038 124:1275 125:1257 128:214 129:159 130:166
131:558 132:101 133:20 134:212 135:49 136:208
137:143 138:297 139:116 140:463 141:203 142:357
143:374 144:484 145:51 146:426 147:201 148:622
149:262 150:167 151:230 152:296 153:180 154:2
155:376 156:175 157:314 158:127 159:369 160:311
161:201 162:277 163:145 164:486 165:342 166:501
167:409 168:723 169:156 170:753 171:69 172:2
173:1248 174:519 175:320 176:1 177:35 178:754
180:802 181:4 182:380 183:242 184:249 186:1034
187:808 188:907 189:1029 190:4555 192:5722 193:4784
194:3488 195:2955 196:1195 197:4 198:3490 199:3783
200:5553 201:1579 202:8029 203:8342 204:4034 205:2279
206:2547 207:2994 208:3893 209:3454 210:2587 211:1348
212:1942 213:1731 214:756 215:63 216:4817 217:1652
218:532 219:371 220:1196 221:456 222:314 223:101
End of report
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