Routing Table Report 08:00 +10GMT Sat 17 Sep, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 365947
Prefixes after maximum aggregation: 165955
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 184865
Total ASes present in the Internet Routing Table: 37229
Prefixes per ASN: 9.83
Origin-only ASes present in the Internet Routing Table: 32117
Origin ASes announcing only one prefix: 15462
Transit ASes present in the Internet Routing Table: 5112
Transit-only ASes present in the Internet Routing Table: 124
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 36
Max AS path prepend of ASN (22394) 33
Prefixes from unregistered ASNs in the Routing Table: 2669
Unregistered ASNs in the Routing Table: 818
Number of 32-bit ASNs allocated by the RIRs: 1739
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3243
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2494682112
Equivalent to 148 /8s, 177 /16s and 212 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.3
Total number of prefixes smaller than registry allocations: 151081
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 88769
Total APNIC prefixes after maximum aggregation: 29438
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86267
Unique aggregates announced from the APNIC address blocks: 38265
APNIC Region origin ASes present in the Internet Routing Table: 4517
APNIC Prefixes per ASN: 19.10
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 690
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: 626974720
Equivalent to 37 /8s, 94 /16s and 224 /24s
Percentage of available APNIC address space announced: 79.5
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: 141997
Total ARIN prefixes after maximum aggregation: 73176
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 114246
Unique aggregates announced from the ARIN address blocks: 48062
ARIN Region origin ASes present in the Internet Routing Table: 14582
ARIN Prefixes per ASN: 7.83
ARIN Region origin ASes announcing only one prefix: 5632
ARIN Region transit ASes present in the Internet Routing Table: 1480
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 36
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804824576
Equivalent to 47 /8s, 248 /16s and 166 /24s
Percentage of available ARIN address space announced: 64.0
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: 88579
Total RIPE prefixes after maximum aggregation: 50077
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 81560
Unique aggregates announced from the RIPE address blocks: 53869
RIPE Region origin ASes present in the Internet Routing Table: 15963
RIPE Prefixes per ASN: 5.11
RIPE Region origin ASes announcing only one prefix: 7961
RIPE Region transit ASes present in the Internet Routing Table: 2511
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: 488865280
Equivalent to 29 /8s, 35 /16s and 126 /24s
Percentage of available RIPE address space announced: 78.8
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: 34180
Total LACNIC prefixes after maximum aggregation: 7676
LACNIC Deaggregation factor: 4.45
Prefixes being announced from the LACNIC address blocks: 33617
Unique aggregates announced from the LACNIC address blocks: 17809
LACNIC Region origin ASes present in the Internet Routing Table: 1511
LACNIC Prefixes per ASN: 22.25
LACNIC Region origin ASes announcing only one prefix: 452
LACNIC Region transit ASes present in the Internet Routing Table: 260
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: 88975872
Equivalent to 5 /8s, 77 /16s and 170 /24s
Percentage of available LACNIC address space announced: 58.9
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: 8467
Total AfriNIC prefixes after maximum aggregation: 2004
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 6541
Unique aggregates announced from the AfriNIC address blocks: 2019
AfriNIC Region origin ASes present in the Internet Routing Table: 482
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 151
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: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 27212032
Equivalent to 1 /8s, 159 /16s and 57 /24s
Percentage of available AfriNIC address space announced: 40.5
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 1943 11039 648 Korea Telecom (KIX)
17974 1718 516 31 PT Telekomunikasi Indonesia
7545 1593 303 84 TPG Internet Pty Ltd
4755 1540 379 167 TATA Communications formerly
24560 1182 337 194 Bharti Airtel Ltd., Telemedia
9829 1156 989 28 National Internet Backbone
9583 1078 80 505 Sify Limited
7552 978 1062 11 Vietel Corporation
17488 958 189 159 Hathway IP Over Cable Interne
4808 957 1995 270 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 3562 3817 227 BellSouth.net Inc.
18566 1910 364 235 Covad Communications Co.
1785 1793 679 121 PaeTec Communications, Inc.
7029 1642 1033 206 Windstream Communications Inc
4323 1625 1101 394 tw telecom holdings, inc.
20115 1594 1542 634 Charter Communications
22773 1453 2905 98 Cox Communications Inc.
30036 1422 263 687 Mediacom Communications Corp
19262 1394 4724 399 Verizon Online LLC
7018 1344 7084 881 AT&T Services, 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
34984 558 107 178 BILISIM TELEKOM
9116 540 326 31 Goldenlines main autonomous s
6830 523 1811 322 UPC Broadband
20940 509 164 404 Akamai Technologies European
3292 473 2081 405 TDC Data Networks
12479 473 594 8 France Telecom Espana SA
8866 460 133 26 Bulgarian Telecommunication C
3320 432 8152 376 Deutsche Telekom AG
29049 424 31 55 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 1675 308 159 Types of queries are: POCs, o
28573 1342 1012 68 Types of queries are: POCs, o
8151 1273 2783 353 Uninet S.A. de C.V.
7303 1156 678 170 Telecom Argentina S.A.
14420 732 58 93 CORPORACION NACIONAL DE TELEC
22047 579 322 17 Types of queries are: POCs, o
6503 567 450 69 Axtel, S.A.B. de C.V.
27947 556 56 77 Telconet S.A
3816 537 232 99 Types of queries are: POCs, o
7738 515 986 31 Telecomunicacoes da Bahia 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
24863 810 147 41 LINKdotNET AS number
8452 698 445 11 TEDATA
15475 513 74 8 Nile Online
36992 307 415 14 Etisalat MISR
3741 270 938 229 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
33776 239 13 8 Starcomms Nigeria Limited
15706 219 32 6 Sudatel Internet Exchange Aut
12258 199 28 59 Vodacom Internet Company
29571 198 17 13 Ci Telecom Autonomous system
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 3562 3817 227 BellSouth.net Inc.
23456 3243 771 1747 32-bit ASN transition
4766 1943 11039 648 Korea Telecom (KIX)
18566 1910 364 235 Covad Communications Co.
1785 1793 679 121 PaeTec Communications, Inc.
17974 1718 516 31 PT Telekomunikasi Indonesia
10620 1675 308 159 Types of queries are: POCs, o
7029 1642 1033 206 Windstream Communications Inc
4323 1625 1101 394 tw telecom holdings, inc.
20115 1594 1542 634 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
17974 1718 1687 PT Telekomunikasi Indonesia
18566 1910 1675 Covad Communications Co.
1785 1793 1672 PaeTec Communications, Inc.
10620 1675 1516 Types of queries are: POCs, o
7545 1593 1509 TPG Internet Pty Ltd
23456 3243 1496 32-bit ASN transition
7029 1642 1436 Windstream Communications Inc
4755 1540 1373 TATA Communications formerly
22773 1453 1355 Cox Communications Inc.
4766 1943 1295 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
41.223.92.0/22 36936 >>UNKNOWN<<
46.18.104.0/21 23456 32-bit ASN transition
50.115.128.0/21 20248 Take 2 Hosting, Inc.
50.115.128.0/20 20248 Take 2 Hosting, Inc.
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:464 /14:799 /15:1410 /16:11927 /17:5945 /18:9971
/19:19826 /20:26910 /21:26918 /22:35891 /23:34386 /24:190607
/25:12 /26:20 /27:23 /28:154 /29:119 /30:60
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2198 3562 BellSouth.net Inc.
18566 1867 1910 Covad Communications Co.
10620 1570 1675 Types of queries are: POCs, o
23456 1562 3243 32-bit ASN transition
30036 1380 1422 Mediacom Communications Corp
7029 1327 1642 Windstream Communications Inc
11492 1112 1149 CABLE ONE, INC.
7011 1058 1183 Frontier Communications of Am
1785 1023 1793 PaeTec Communications, Inc.
22773 944 1453 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:369 2:51 4:15 5:1 6:3 8:348
12:1949 13:1 14:530 15:13 16:3 17:5
20:10 23:34 24:1675 27:938 31:530 32:59
33:4 34:2 36:4 38:736 40:108 41:2540
42:48 44:3 46:977 47:3 49:248 50:418
52:13 54:2 55:5 56:2 57:34 58:827
59:498 60:374 61:1013 62:1085 63:1923 64:4001
65:2297 66:3915 67:1940 68:1093 69:3172 70:779
71:377 72:1858 74:2435 75:326 76:338 77:868
78:665 79:478 80:1119 81:841 82:508 83:502
84:686 85:1087 86:415 87:871 88:350 89:1534
90:234 91:4094 92:522 93:1151 94:1333 95:763
96:431 97:272 98:931 99:36 101:82 103:298
106:94 107:44 108:76 109:1015 110:637 111:773
112:305 113:421 114:546 115:666 116:909 117:661
118:858 119:1177 120:337 121:667 122:1594 123:1010
124:1297 125:1339 128:210 129:172 130:159 131:573
132:112 133:21 134:207 135:53 136:210 137:134
138:294 139:106 140:470 141:288 142:371 143:405
144:479 145:60 146:461 147:214 148:615 149:250
150:146 151:190 152:450 153:177 154:5 155:391
156:199 157:325 158:144 159:393 160:323 161:198
162:332 163:164 164:507 165:370 166:537 167:432
168:741 169:144 170:860 171:84 172:4 173:1637
174:628 175:393 176:175 177:251 178:998 180:1058
181:26 182:605 183:229 184:366 185:1 186:1437
187:666 188:939 189:873 190:5141 192:5869 193:5009
194:3520 195:3056 196:1246 197:142 198:3536 199:4064
200:5438 201:1627 202:8233 203:8379 204:4179 205:2314
206:2587 207:2761 208:4022 209:3433 210:2625 211:1462
212:2105 213:1771 214:775 215:75 216:4822 217:1612
218:543 219:328 220:1188 221:498 222:294 223:262
End of report
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