Routing Table Report 08:00 +10GMT Tue 16 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 361533
Prefixes after maximum aggregation: 164462
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182297
Total ASes present in the Internet Routing Table: 37015
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 31928
Origin ASes announcing only one prefix: 15383
Transit ASes present in the Internet Routing Table: 5087
Transit-only ASes present in the Internet Routing Table: 135
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 34
Max AS path prepend of ASN (22394) 31
Prefixes from unregistered ASNs in the Routing Table: 2464
Unregistered ASNs in the Routing Table: 695
Number of 32-bit ASNs allocated by the RIRs: 1647
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3053
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 111
Number of addresses announced to Internet: 2510342656
Equivalent to 149 /8s, 160 /16s and 202 /24s
Percentage of available address space announced: 67.7
Percentage of allocated address space announced: 67.7
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.2
Total number of prefixes smaller than registry allocations: 149194
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87559
Total APNIC prefixes after maximum aggregation: 29152
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 84981
Unique aggregates announced from the APNIC address blocks: 37850
APNIC Region origin ASes present in the Internet Routing Table: 4482
APNIC Prefixes per ASN: 18.96
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 677
Average APNIC Region AS path length visible: 3.9
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: 623240704
Equivalent to 37 /8s, 37 /16s and 230 /24s
Percentage of available APNIC address space announced: 79.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 140661
Total ARIN prefixes after maximum aggregation: 72760
ARIN Deaggregation factor: 1.93
Prefixes being announced from the ARIN address blocks: 112810
Unique aggregates announced from the ARIN address blocks: 47048
ARIN Region origin ASes present in the Internet Routing Table: 14503
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5595
ARIN Region transit ASes present in the Internet Routing Table: 1464
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 34
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 803323136
Equivalent to 47 /8s, 225 /16s and 189 /24s
Percentage of available ARIN address space announced: 63.8
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: 87792
Total RIPE prefixes after maximum aggregation: 49615
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81015
Unique aggregates announced from the RIPE address blocks: 53304
RIPE Region origin ASes present in the Internet Routing Table: 15873
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7921
RIPE Region transit ASes present in the Internet Routing Table: 2505
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 31
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 487142400
Equivalent to 29 /8s, 9 /16s and 52 /24s
Percentage of available RIPE address space announced: 78.5
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: 33353
Total LACNIC prefixes after maximum aggregation: 7533
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32751
Unique aggregates announced from the LACNIC address blocks: 17253
LACNIC Region origin ASes present in the Internet Routing Table: 1489
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 262
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: 87445248
Equivalent to 5 /8s, 54 /16s and 79 /24s
Percentage of available LACNIC address space announced: 57.9
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: 8412
Total AfriNIC prefixes after maximum aggregation: 2028
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6542
Unique aggregates announced from the AfriNIC address blocks: 2026
AfriNIC Region origin ASes present in the Internet Routing Table: 485
AfriNIC Prefixes per ASN: 13.49
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 3.3
Max AfriNIC Region AS path length visible: 15
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 26922240
Equivalent to 1 /8s, 154 /16s and 205 /24s
Percentage of available AfriNIC address space announced: 40.1
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 1935 11038 648 Korea Telecom (KIX)
17974 1613 516 31 PT Telekomunikasi Indonesia
7545 1577 301 84 TPG Internet Pty Ltd
4755 1525 374 167 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 National Internet Backbone
9583 1071 78 493 Sify Limited
7552 1001 1062 11 Vietel Corporation
17488 995 187 131 Hathway IP Over Cable Interne
4808 952 2005 273 CNCGROUP IP network China169
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 3586 3817 233 BellSouth.net Inc.
18566 1911 364 238 Covad Communications Co.
1785 1821 681 124 PaeTec Communications, Inc.
4323 1616 1102 402 tw telecom holdings, inc.
7029 1609 1029 208 Windstream Communications Inc
20115 1590 1538 623 Charter Communications
22773 1409 2903 93 Cox Communications Inc.
7018 1366 7085 895 AT&T Services, Inc.
2386 1247 517 897 AT&T Data Communications Serv
7011 1160 280 626 Frontier Communications of Am
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 538 107 185 BILISIM TELEKOM
6830 510 1788 316 UPC Broadband
20940 474 136 367 Akamai Technologies European
3292 470 2080 405 TDC Data Networks
8866 454 133 26 Bulgarian Telecommunication C
12479 454 593 7 France Telecom Espana SA
3320 424 8151 370 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.
8551 404 355 38 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 1574 290 165 Types of queries are: POCs, o
8151 1261 2737 354 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1045 578 164 Telecom Argentina S.A.
6503 731 450 76 Axtel, S.A.B. de C.V.
14420 705 56 85 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 533 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
11172 513 101 91 Alestra, S. de R.L. de C.V.
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 804 147 41 LINKdotNET AS number
8452 678 445 11 TEDATA
15475 512 74 8 Nile Online
36992 306 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 253 32 6 Sudatel Internet Exchange Aut
33776 229 13 8 Starcomms Nigeria Limited
12258 194 28 65 Vodacom Internet Company
24835 179 78 10 RAYA Telecom - Egypt
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 3586 3817 233 BellSouth.net Inc.
23456 3053 730 1644 32-bit ASN transition
4766 1935 11038 648 Korea Telecom (KIX)
18566 1911 364 238 Covad Communications Co.
1785 1821 681 124 PaeTec Communications, Inc.
4323 1616 1102 402 tw telecom holdings, inc.
17974 1613 516 31 PT Telekomunikasi Indonesia
7029 1609 1029 208 Windstream Communications Inc
20115 1590 1538 623 Charter Communications
7545 1577 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
1785 1821 1697 PaeTec Communications, Inc.
18566 1911 1673 Covad Communications Co.
17974 1613 1582 PT Telekomunikasi Indonesia
7545 1577 1493 TPG Internet Pty Ltd
23456 3053 1409 32-bit ASN transition
10620 1574 1409 Types of queries are: POCs, o
7029 1609 1401 Windstream Communications Inc
4755 1525 1358 TATA Communications formerly
22773 1409 1316 Cox Communications Inc.
4766 1935 1287 Korea Telecom (KIX)
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
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
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 /8:21 /9:12 /10:27 /11:81 /12:234
/13:465 /14:797 /15:1415 /16:12025 /17:5890 /18:9899
/19:19612 /20:26452 /21:26429 /22:35077 /23:33839 /24:188738
/25:12 /26:20 /27:23 /28:161 /29:110 /30:61
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3586 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1498 3053 32-bit ASN transition
10620 1469 1574 Types of queries are: POCs, o
7029 1293 1609 Windstream Communications Inc
11492 1100 1146 CABLE ONE, INC.
7011 1057 1160 Frontier Communications of Am
1785 1053 1821 PaeTec Communications, Inc.
22773 905 1409 Cox Communications Inc.
30036 899 921 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:351 2:45 4:15 5:1 6:3 8:340
12:1974 13:1 14:505 15:15 16:3 17:5
20:10 23:19 24:1682 27:870 31:514 32:59
33:4 34:2 36:4 38:728 40:107 41:2535
42:45 44:3 46:1066 47:3 49:219 50:396
52:13 54:2 55:6 56:2 57:34 58:826
59:493 60:377 61:1027 62:1095 63:1924 64:3973
65:2299 66:3911 67:1912 68:1103 69:3086 70:744
71:262 72:1799 74:2363 75:328 76:340 77:862
78:708 79:486 80:1126 81:826 82:476 83:468
84:685 85:1076 86:517 87:839 88:338 89:1530
90:224 91:4046 92:521 93:1118 94:1345 95:871
96:365 97:266 98:920 99:37 101:74 103:190
106:69 107:31 108:57 109:1007 110:623 111:729
112:304 113:407 114:560 115:676 116:970 117:660
118:829 119:1170 120:314 121:662 122:1595 123:978
124:1277 125:1279 128:208 129:167 130:165 131:575
132:108 133:21 134:205 135:52 136:214 137:137
138:296 139:114 140:463 141:245 142:366 143:417
144:487 145:58 146:455 147:215 148:629 149:252
150:155 151:168 152:438 153:182 154:4 155:401
156:196 157:300 158:138 159:389 160:317 161:199
162:325 163:154 164:515 165:365 166:534 167:431
168:742 169:151 170:844 171:81 172:1 173:1640
174:622 175:379 176:148 177:202 178:1001 180:916
181:24 182:508 183:240 184:363 185:1 186:1361
187:725 188:909 189:928 190:5067 192:5881 193:4981
194:3503 195:3032 196:1215 197:124 198:3533 199:3989
200:5439 201:1465 202:8204 203:8380 204:4183 205:2298
206:2586 207:2721 208:3991 209:3386 210:2615 211:1450
212:2092 213:1768 214:772 215:70 216:4856 217:1611
218:541 219:349 220:1194 221:498 222:310 223:234
End of report
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