Routing Table Report 08:00 +10GMT Wed 17 Aug, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 361910
Prefixes after maximum aggregation: 164463
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 182396
Total ASes present in the Internet Routing Table: 37026
Prefixes per ASN: 9.77
Origin-only ASes present in the Internet Routing Table: 31941
Origin ASes announcing only one prefix: 15389
Transit ASes present in the Internet Routing Table: 5085
Transit-only ASes present in the Internet Routing Table: 138
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: 2463
Unregistered ASNs in the Routing Table: 700
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: 3040
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 110
Number of addresses announced to Internet: 2510699008
Equivalent to 149 /8s, 166 /16s and 58 /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: 149660
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 87496
Total APNIC prefixes after maximum aggregation: 29137
APNIC Deaggregation factor: 3.00
Prefixes being announced from the APNIC address blocks: 84927
Unique aggregates announced from the APNIC address blocks: 37820
APNIC Region origin ASes present in the Internet Routing Table: 4475
APNIC Prefixes per ASN: 18.98
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 673
Average APNIC Region AS path length visible: 4.1
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: 623005696
Equivalent to 37 /8s, 34 /16s and 80 /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: 141038
Total ARIN prefixes after maximum aggregation: 72758
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 113126
Unique aggregates announced from the ARIN address blocks: 47056
ARIN Region origin ASes present in the Internet Routing Table: 14511
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5603
ARIN Region transit ASes present in the Internet Routing Table: 1465
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: 803604736
Equivalent to 47 /8s, 230 /16s and 9 /24s
Percentage of available ARIN address space announced: 63.9
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: 87883
Total RIPE prefixes after maximum aggregation: 49623
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81095
Unique aggregates announced from the RIPE address blocks: 53343
RIPE Region origin ASes present in the Internet Routing Table: 15881
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7925
RIPE Region transit ASes present in the Internet Routing Table: 2501
Average RIPE Region AS path length visible: 3.5
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: 487432192
Equivalent to 29 /8s, 13 /16s and 160 /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: 33373
Total LACNIC prefixes after maximum aggregation: 7535
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 32758
Unique aggregates announced from the LACNIC address blocks: 17291
LACNIC Region origin ASes present in the Internet Routing Table: 1491
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 449
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: 87508224
Equivalent to 5 /8s, 55 /16s and 69 /24s
Percentage of available LACNIC address space announced: 58.0
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: 8379
Total AfriNIC prefixes after maximum aggregation: 2039
AfriNIC Deaggregation factor: 4.11
Prefixes being announced from the AfriNIC address blocks: 6512
Unique aggregates announced from the AfriNIC address blocks: 2070
AfriNIC Region origin ASes present in the Internet Routing Table: 481
AfriNIC Prefixes per ASN: 13.54
AfriNIC Region origin ASes announcing only one prefix: 156
AfriNIC Region transit ASes present in the Internet Routing Table: 105
Average AfriNIC Region AS path length visible: 3.4
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: 26915072
Equivalent to 1 /8s, 154 /16s and 177 /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 1937 11038 646 Korea Telecom (KIX)
17974 1619 516 31 PT Telekomunikasi Indonesia
7545 1574 301 84 TPG Internet Pty Ltd
4755 1524 634 167 TATA Communications formerly
24560 1198 336 187 Bharti Airtel Ltd., Telemedia
9829 1124 963 42 National Internet Backbone
9583 1072 78 494 Sify Limited
7552 1001 1062 11 Vietel Corporation
17488 999 188 132 Hathway IP Over Cable Interne
4808 949 2004 271 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 3583 3817 230 BellSouth.net Inc.
18566 1911 364 238 Covad Communications Co.
1785 1820 681 123 PaeTec Communications, Inc.
4323 1617 1102 402 tw telecom holdings, inc.
7029 1609 1029 208 Windstream Communications Inc
20115 1580 1537 625 Charter Communications
22773 1432 2903 97 Cox Communications Inc.
19262 1405 4778 395 Verizon Online LLC
7018 1365 7085 894 AT&T Services, Inc.
2386 1246 517 896 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 538 107 183 BILISIM TELEKOM
6830 510 1788 316 UPC Broadband
20940 474 136 367 Akamai Technologies European
3292 469 2080 404 TDC Data Networks
8866 457 133 26 Bulgarian Telecommunication C
12479 455 593 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 1584 293 163 Types of queries are: POCs, o
8151 1262 2745 352 Uninet S.A. de C.V.
28573 1256 996 67 Types of queries are: POCs, o
7303 1046 578 163 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 534 232 97 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia S.A
11172 512 101 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 796 144 55 LINKdotNET AS number
8452 633 445 11 TEDATA
15475 511 74 8 Nile Online
36992 307 415 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 263 519 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 3583 3817 230 BellSouth.net Inc.
23456 3040 731 1642 32-bit ASN transition
4766 1937 11038 646 Korea Telecom (KIX)
18566 1911 364 238 Covad Communications Co.
1785 1820 681 123 PaeTec Communications, Inc.
17974 1619 516 31 PT Telekomunikasi Indonesia
4323 1617 1102 402 tw telecom holdings, inc.
7029 1609 1029 208 Windstream Communications Inc
10620 1584 293 163 Types of queries are: POCs, o
20115 1580 1537 625 Charter Communications
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 1820 1697 PaeTec Communications, Inc.
18566 1911 1673 Covad Communications Co.
17974 1619 1588 PT Telekomunikasi Indonesia
7545 1574 1490 TPG Internet Pty Ltd
10620 1584 1421 Types of queries are: POCs, o
7029 1609 1401 Windstream Communications Inc
23456 3040 1398 32-bit ASN transition
4755 1524 1357 TATA Communications formerly
22773 1432 1335 Cox Communications Inc.
4766 1937 1291 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 /14:798 /15:1414 /16:12029 /17:5911 /18:9886
/19:19625 /20:26456 /21:26456 /22:35091 /23:33851 /24:189035
/25:11 /26:20 /27:23 /28:159 /29:109 /30:61
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3583 BellSouth.net Inc.
18566 1868 1911 Covad Communications Co.
23456 1488 3040 32-bit ASN transition
10620 1479 1584 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 1820 PaeTec Communications, Inc.
22773 928 1432 Cox Communications Inc.
30036 902 924 Mediacom Communications Corp
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:352 2:45 4:15 5:1 6:3 8:340
12:1957 13:1 14:506 15:15 16:3 17:5
20:10 23:18 24:1682 27:864 31:515 32:59
33:4 34:2 36:4 38:729 40:107 41:2540
42:45 44:3 46:1070 47:3 49:219 50:396
52:13 54:2 55:5 56:2 57:34 58:816
59:493 60:373 61:1020 62:1094 63:1923 64:3968
65:2300 66:3914 67:1912 68:1100 69:3080 70:776
71:373 72:1848 74:2428 75:328 76:339 77:863
78:707 79:487 80:1128 81:832 82:490 83:468
84:685 85:1074 86:517 87:839 88:337 89:1530
90:224 91:4042 92:526 93:1119 94:1348 95:876
96:413 97:266 98:921 99:37 101:74 103:195
106:69 107:31 108:73 109:1010 110:624 111:729
112:300 113:406 114:560 115:675 116:971 117:657
118:830 119:1173 120:312 121:662 122:1576 123:973
124:1276 125:1282 128:208 129:167 130:165 131:575
132:106 133:21 134:205 135:51 136:214 137:136
138:296 139:114 140:466 141:275 142:366 143:417
144:484 145:58 146:455 147:216 148:629 149:253
150:155 151:190 152:437 153:184 154:4 155:401
156:196 157:299 158:133 159:390 160:317 161:199
162:325 163:154 164:515 165:365 166:534 167:435
168:741 169:151 170:842 171:81 172:1 173:1640
174:623 175:378 176:148 177:210 178:1001 180:921
181:26 182:509 183:242 184:368 185:1 186:1353
187:721 188:914 189:926 190:5085 192:5873 193:4971
194:3503 195:3041 196:1215 197:124 198:3534 199:3985
200:5409 201:1475 202:8204 203:8375 204:4179 205:2300
206:2585 207:2733 208:3991 209:3383 210:2603 211:1451
212:2100 213:1762 214:763 215:70 216:4841 217:1610
218:544 219:349 220:1187 221:498 222:310 223:234
End of report
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