Routing Table Report 08:00 +10GMT Wed 15 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 354924
Prefixes after maximum aggregation: 160944
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178606
Total ASes present in the Internet Routing Table: 36545
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31560
Origin ASes announcing only one prefix: 15192
Transit ASes present in the Internet Routing Table: 4985
Transit-only ASes present in the Internet Routing Table: 112
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2183
Unregistered ASNs in the Routing Table: 513
Number of 32-bit ASNs allocated by the RIRs: 1453
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2663
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 167
Number of addresses announced to Internet: 2486599168
Equivalent to 148 /8s, 54 /16s and 126 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.9
Total number of prefixes smaller than registry allocations: 146409
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85337
Total APNIC prefixes after maximum aggregation: 28778
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82647
Unique aggregates announced from the APNIC address blocks: 36830
APNIC Region origin ASes present in the Internet Routing Table: 4430
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 1268
APNIC Region transit ASes present in the Internet Routing Table: 671
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 618346496
Equivalent to 36 /8s, 219 /16s and 56 /24s
Percentage of available APNIC address space announced: 78.4
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: 139488
Total ARIN prefixes after maximum aggregation: 71088
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111738
Unique aggregates announced from the ARIN address blocks: 46106
ARIN Region origin ASes present in the Internet Routing Table: 14352
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5493
ARIN Region transit ASes present in the Internet Routing Table: 1444
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 800995328
Equivalent to 47 /8s, 190 /16s and 56 /24s
Percentage of available ARIN address space announced: 63.7
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: 85966
Total RIPE prefixes after maximum aggregation: 48718
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 79404
Unique aggregates announced from the RIPE address blocks: 52401
RIPE Region origin ASes present in the Internet Routing Table: 15690
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7848
RIPE Region transit ASes present in the Internet Routing Table: 2450
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 477380096
Equivalent to 28 /8s, 116 /16s and 62 /24s
Percentage of available RIPE address space announced: 76.9
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: 32483
Total LACNIC prefixes after maximum aggregation: 7415
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31937
Unique aggregates announced from the LACNIC address blocks: 16959
LACNIC Region origin ASes present in the Internet Routing Table: 1452
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 440
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: 19
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84842496
Equivalent to 5 /8s, 14 /16s and 152 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8262
Total AfriNIC prefixes after maximum aggregation: 1980
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6349
Unique aggregates announced from the AfriNIC address blocks: 1894
AfriNIC Region origin ASes present in the Internet Routing Table: 460
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 103
Average AfriNIC Region AS path length visible: 3.5
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 24167424
Equivalent to 1 /8s, 112 /16s and 196 /24s
Percentage of available AfriNIC address space announced: 36.0
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 1900 9492 620 Korea Telecom (KIX)
17974 1564 441 39 PT Telekomunikasi Indonesia
7545 1535 301 84 TPG Internet Pty Ltd
4755 1472 374 165 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1043 879 56 National Internet Backbone
4808 960 2017 278 CNCGROUP IP network China169
17488 946 193 101 Hathway IP Over Cable Interne
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 3630 3819 251 BellSouth.net Inc.
4323 1958 1096 397 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
1785 1798 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
20115 1536 1541 633 Charter Communications
19262 1487 4926 320 Verizon Online LLC
7018 1377 7088 904 AT&T Services, Inc.
22773 1341 2897 87 Cox Communications Inc.
2386 1271 537 911 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 540 326 31 Goldenlines main autonomous s
34984 522 106 180 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 464 2078 399 TDC Data Networks
20940 462 135 354 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 446 134 26 Bulgarian Telecommunication C
12479 437 593 7 France Telecom Espana SA
3320 424 8152 369 Deutsche Telekom AG
8551 407 356 39 Bezeq International
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 1513 278 157 Types of queries are: POCs, o
28573 1302 992 79 Types of queries are: POCs, o
8151 1248 2702 359 Uninet S.A. de C.V.
7303 967 506 158 Telecom Argentina S.A.
6503 731 354 74 Axtel, S.A.B. de C.V.
14420 679 54 81 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 532 231 93 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 509 261 136 EPM Telecomunicaciones S.A. E
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
24863 791 147 35 LINKdotNET AS number
8452 782 445 11 TEDATA
15475 529 74 8 Nile Online
36992 306 415 16 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS
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 3630 3819 251 BellSouth.net Inc.
23456 2663 650 1436 32-bit ASN transition
4323 1958 1096 397 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
4766 1900 9492 620 Korea Telecom (KIX)
1785 1798 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
17974 1564 441 39 PT Telekomunikasi Indonesia
20115 1536 1541 633 Charter Communications
7545 1535 301 84 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
6478 1728 1678 AT&T Services, Inc.
18566 1912 1676 Covad Communications Co.
1785 1798 1676 PaeTec Communications, Inc.
4323 1958 1561 tw telecom holdings, inc.
17974 1564 1525 PT Telekomunikasi Indonesia
7545 1535 1451 TPG Internet Pty Ltd
10620 1513 1356 Types of queries are: POCs, o
4755 1472 1307 TATA Communications formerly
4766 1900 1280 Korea Telecom (KIX)
22773 1341 1254 Cox Communications 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 *
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
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.
26973 UNALLOCATED 12.39.152.0/24 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 65535 Internet Assigned Numbers Aut
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
27.0.128.0/17 7514 Media EXchange, Inc.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 31856 CABSAS
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 /9:12 /10:28 /11:80 /12:230
/13:460 /14:799 /15:1393 /16:11914 /17:5829 /18:9722
/19:19449 /20:25948 /21:25993 /22:34119 /23:32918 /24:185503
/25:13 /26:17 /27:25 /28:160 /29:104 /30:56
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2232 3630 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1682 1728 AT&T Services, Inc.
10620 1403 1513 Types of queries are: POCs, o
23456 1324 2663 32-bit ASN transition
11492 1086 1132 CABLE ONE, INC.
7011 1059 1159 Frontier Communications of Am
1785 1050 1798 PaeTec Communications, Inc.
7029 937 1255 Alltel Information Services,
4323 869 1958 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:284 2:44 4:16 5:1 6:3 8:336
12:1975 13:1 14:451 15:15 16:3 17:8
20:10 23:11 24:1609 27:780 31:440 32:55
33:4 34:2 37:1 38:729 40:103 41:2514
42:2 44:3 46:962 47:3 49:188 50:409
52:13 54:2 55:3 56:2 57:30 58:804
59:470 60:385 61:1015 62:1053 63:1929 64:3901
65:2249 66:4119 67:1887 68:1076 69:2968 70:700
71:373 72:1831 74:2347 75:307 76:340 77:880
78:705 79:469 80:1108 81:849 82:496 83:464
84:667 85:1080 86:579 87:756 88:331 89:1530
90:204 91:3828 92:527 93:1042 94:1308 95:839
96:440 97:250 98:880 99:36 101:60 103:64
106:6 107:11 108:83 109:996 110:607 111:705
112:291 113:393 114:534 115:677 116:942 117:673
118:789 119:1140 120:308 121:645 122:1621 123:937
124:1258 125:1219 128:209 129:169 130:158 131:574
132:100 133:19 134:206 135:48 136:212 137:143
138:300 139:110 140:457 141:238 142:388 143:415
144:488 145:54 146:446 147:207 148:588 149:246
150:164 151:187 152:330 153:180 154:3 155:398
156:192 157:323 158:137 159:374 160:317 161:200
162:306 163:154 164:499 165:351 166:529 167:422
168:734 169:153 170:834 171:77 172:1 173:1608
174:592 175:358 176:134 177:165 178:995 180:878
181:18 182:454 183:217 184:301 185:1 186:1212
187:771 188:838 189:916 190:4878 192:5806 193:4906
194:3492 195:3002 196:1246 197:32 198:3543 199:3895
200:5469 201:1475 202:8090 203:8305 204:4115 205:2316
206:2601 207:2748 208:3913 209:3439 210:2646 211:1408
212:2018 213:1722 214:747 215:69 216:4843 217:1655
218:532 219:360 220:1199 221:477 222:309 223:156
End of report
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