Routing Table Report 08:00 +10GMT Mon 15 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 361427
Prefixes after maximum aggregation: 164330
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182175
Total ASes present in the Internet Routing Table: 36989
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 31907
Origin ASes announcing only one prefix: 15360
Transit ASes present in the Internet Routing Table: 5082
Transit-only ASes present in the Internet Routing Table: 137
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: 2455
Unregistered ASNs in the Routing Table: 692
Number of 32-bit ASNs allocated by the RIRs: 1646
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: 2509924352
Equivalent to 149 /8s, 154 /16s and 104 /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: 149429
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87334
Total APNIC prefixes after maximum aggregation: 29121
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 84750
Unique aggregates announced from the APNIC address blocks: 37768
APNIC Region origin ASes present in the Internet Routing Table: 4479
APNIC Prefixes per ASN: 18.92
APNIC Region origin ASes announcing only one prefix: 1255
APNIC Region transit ASes present in the Internet Routing Table: 675
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: 623168256
Equivalent to 37 /8s, 36 /16s and 203 /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: 140895
Total ARIN prefixes after maximum aggregation: 72722
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113031
Unique aggregates announced from the ARIN address blocks: 47053
ARIN Region origin ASes present in the Internet Routing Table: 14488
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5580
ARIN Region transit ASes present in the Internet Routing Table: 1466
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: 803236608
Equivalent to 47 /8s, 224 /16s and 107 /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: 87750
Total RIPE prefixes after maximum aggregation: 49580
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80986
Unique aggregates announced from the RIPE address blocks: 53292
RIPE Region origin ASes present in the Internet Routing Table: 15866
RIPE Prefixes per ASN: 5.10
RIPE Region origin ASes announcing only one prefix: 7915
RIPE Region transit ASes present in the Internet Routing Table: 2498
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: 487065856
Equivalent to 29 /8s, 8 /16s and 9 /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: 33302
Total LACNIC prefixes after maximum aggregation: 7502
LACNIC Deaggregation factor: 4.44
Prefixes being announced from the LACNIC address blocks: 32750
Unique aggregates announced from the LACNIC address blocks: 17256
LACNIC Region origin ASes present in the Internet Routing Table: 1487
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 453
LACNIC Region transit ASes present in the Internet Routing Table: 263
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: 87414272
Equivalent to 5 /8s, 53 /16s and 214 /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: 8395
Total AfriNIC prefixes after maximum aggregation: 2035
AfriNIC Deaggregation factor: 4.13
Prefixes being announced from the AfriNIC address blocks: 6525
Unique aggregates announced from the AfriNIC address blocks: 2031
AfriNIC Region origin ASes present in the Internet Routing Table: 484
AfriNIC Prefixes per ASN: 13.48
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 106
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: 26924544
Equivalent to 1 /8s, 154 /16s and 214 /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 1929 11038 644 Korea Telecom (KIX)
17974 1590 516 31 PT Telekomunikasi Indonesia
7545 1572 301 84 TPG Internet Pty Ltd
4755 1523 374 167 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1128 963 42 National Internet Backbone
9583 1072 78 490 Sify Limited
7552 997 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 229 BellSouth.net Inc.
18566 1910 364 239 Covad Communications Co.
1785 1819 681 124 PaeTec Communications, Inc.
4323 1617 1102 402 tw telecom holdings, inc.
7029 1609 1029 208 Windstream Communications Inc
20115 1590 1538 623 Charter Communications
22773 1408 2903 93 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1368 7085 899 AT&T Services, Inc.
2386 1250 517 899 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 538 107 185 BILISIM TELEKOM
6830 509 1788 315 UPC Broadband
20940 471 134 364 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 422 8150 368 Deutsche Telekom AG
29049 416 31 57 AzerSat LLC.
8551 405 355 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 1044 578 162 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 532 231 96 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 679 445 11 TEDATA
15475 511 74 8 Nile Online
36992 308 417 15 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 261 519 14 Itissalat Al-MAGHRIB
15706 236 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 229 BellSouth.net Inc.
23456 3053 731 1642 32-bit ASN transition
4766 1929 11038 644 Korea Telecom (KIX)
18566 1910 364 239 Covad Communications Co.
1785 1819 681 124 PaeTec Communications, Inc.
4323 1617 1102 402 tw telecom holdings, inc.
7029 1609 1029 208 Windstream Communications Inc
17974 1590 516 31 PT Telekomunikasi Indonesia
20115 1590 1538 623 Charter Communications
10620 1574 290 165 Types of queries are: POCs, o
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 1819 1695 PaeTec Communications, Inc.
18566 1910 1671 Covad Communications Co.
17974 1590 1559 PT Telekomunikasi Indonesia
7545 1572 1488 TPG Internet Pty Ltd
23456 3053 1411 32-bit ASN transition
10620 1574 1409 Types of queries are: POCs, o
7029 1609 1401 Windstream Communications Inc
4755 1523 1356 TATA Communications formerly
22773 1408 1315 Cox Communications Inc.
4766 1929 1285 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 /14:799 /15:1408 /16:12010 /17:5887 /18:9868
/19:19606 /20:26422 /21:26431 /22:35046 /23:33781 /24:188814
/25:12 /26:20 /27:23 /28:158 /29:113 /30:61
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2216 3586 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
23456 1499 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 1159 Frontier Communications of Am
1785 1051 1819 PaeTec Communications, Inc.
22773 904 1408 Cox Communications Inc.
30036 897 919 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:353 2:45 4:15 5:1 6:3 8:340
12:1961 13:1 14:505 15:15 16:3 17:5
20:10 23:19 24:1683 27:869 31:512 32:59
33:4 34:2 36:4 38:727 40:107 41:2521
42:43 44:3 46:1068 47:3 49:219 50:395
52:13 54:2 55:4 56:2 57:34 58:823
59:492 60:377 61:1007 62:1066 63:1924 64:3965
65:2298 66:3908 67:1913 68:1103 69:3083 70:776
71:373 72:1843 74:2427 75:328 76:341 77:864
78:695 79:483 80:1128 81:827 82:494 83:468
84:686 85:1067 86:516 87:839 88:327 89:1533
90:224 91:4045 92:526 93:1119 94:1344 95:869
96:413 97:266 98:923 99:37 101:74 103:189
106:69 107:31 108:73 109:1017 110:619 111:730
112:303 113:401 114:498 115:676 116:969 117:658
118:825 119:1172 120:314 121:662 122:1582 123:978
124:1276 125:1278 128:208 129:167 130:165 131:573
132:106 133:21 134:205 135:52 136:214 137:136
138:295 139:114 140:466 141:274 142:366 143:416
144:481 145:58 146:455 147:215 148:626 149:251
150:154 151:190 152:438 153:182 154:4 155:400
156:193 157:300 158:137 159:389 160:317 161:198
162:309 163:153 164:515 165:365 166:534 167:431
168:728 169:151 170:839 171:81 172:1 173:1637
174:622 175:379 176:148 177:208 178:1002 180:919
181:26 182:491 183:241 184:363 185:1 186:1361
187:725 188:908 189:929 190:5084 192:5866 193:4970
194:3501 195:3055 196:1214 197:123 198:3532 199:3985
200:5433 201:1472 202:8185 203:8378 204:4182 205:2292
206:2584 207:2722 208:3991 209:3388 210:2609 211:1450
212:2100 213:1765 214:767 215:70 216:4851 217:1613
218:536 219:349 220:1189 221:497 222:310 223:234
End of report
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