Routing Table Report 08:00 +10GMT Sun 17 Jul, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 358103
Prefixes after maximum aggregation: 163355
Deaggregation factor: 2.19
Unique aggregates announced to Internet: 180625
Total ASes present in the Internet Routing Table: 36763
Prefixes per ASN: 9.74
Origin-only ASes present in the Internet Routing Table: 31711
Origin ASes announcing only one prefix: 15270
Transit ASes present in the Internet Routing Table: 5052
Transit-only ASes present in the Internet Routing Table: 120
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 37
Max AS path prepend of ASN (22394) 27
Prefixes from unregistered ASNs in the Routing Table: 2306
Unregistered ASNs in the Routing Table: 615
Number of 32-bit ASNs allocated by the RIRs: 1563
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2908
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 123
Number of addresses announced to Internet: 2493987584
Equivalent to 148 /8s, 167 /16s and 59 /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: 91.1
Total number of prefixes smaller than registry allocations: 147786
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 86139
Total APNIC prefixes after maximum aggregation: 28988
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 83782
Unique aggregates announced from the APNIC address blocks: 37492
APNIC Region origin ASes present in the Internet Routing Table: 4467
APNIC Prefixes per ASN: 18.76
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 675
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: 620579072
Equivalent to 36 /8s, 253 /16s and 73 /24s
Percentage of available APNIC address space announced: 78.7
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: 140157
Total ARIN prefixes after maximum aggregation: 72415
ARIN Deaggregation factor: 1.94
Prefixes being announced from the ARIN address blocks: 112395
Unique aggregates announced from the ARIN address blocks: 46657
ARIN Region origin ASes present in the Internet Routing Table: 14396
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5517
ARIN Region transit ASes present in the Internet Routing Table: 1454
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 30
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802414336
Equivalent to 47 /8s, 211 /16s and 223 /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: 87046
Total RIPE prefixes after maximum aggregation: 49235
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 80371
Unique aggregates announced from the RIPE address blocks: 52875
RIPE Region origin ASes present in the Internet Routing Table: 15790
RIPE Prefixes per ASN: 5.09
RIPE Region origin ASes announcing only one prefix: 7890
RIPE Region transit ASes present in the Internet Routing Table: 2481
Average RIPE Region AS path length visible: 3.6
Max RIPE Region AS path length visible: 37
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 479510528
Equivalent to 28 /8s, 148 /16s and 192 /24s
Percentage of available RIPE address space announced: 77.2
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: 32831
Total LACNIC prefixes after maximum aggregation: 7479
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 32305
Unique aggregates announced from the LACNIC address blocks: 17057
LACNIC Region origin ASes present in the Internet Routing Table: 1470
LACNIC Prefixes per ASN: 21.98
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 258
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: 86042112
Equivalent to 5 /8s, 32 /16s and 230 /24s
Percentage of available LACNIC address space announced: 57.0
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: 8323
Total AfriNIC prefixes after maximum aggregation: 2019
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6491
Unique aggregates announced from the AfriNIC address blocks: 1989
AfriNIC Region origin ASes present in the Internet Routing Table: 471
AfriNIC Prefixes per ASN: 13.78
AfriNIC Region origin ASes announcing only one prefix: 150
AfriNIC Region transit ASes present in the Internet Routing Table: 104
Average AfriNIC Region AS path length visible: 3.4
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: 24402688
Equivalent to 1 /8s, 116 /16s and 91 /24s
Percentage of available AfriNIC address space announced: 36.4
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 1909 11036 632 Korea Telecom (KIX)
7545 1551 301 83 TPG Internet Pty Ltd
17974 1535 456 45 PT Telekomunikasi Indonesia
4755 1499 375 167 TATA Communications formerly
24560 1155 336 187 Bharti Airtel Ltd., Telemedia
9829 1098 923 47 National Internet Backbone
9583 1064 78 504 Sify Limited
17488 964 187 106 Hathway IP Over Cable Interne
4808 946 2003 274 CNCGROUP IP network China169
18101 933 116 139 Reliance Infocom Ltd Internet
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 3598 3819 242 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1809 681 121 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1594 1534 627 Charter Communications
19262 1410 4744 390 Verizon Online LLC
7029 1389 1031 209 Windstream Communications Inc
7018 1377 7102 903 AT&T Services, Inc.
22773 1350 2897 88 Cox Communications Inc.
2386 1261 521 907 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 535 106 184 BILISIM TELEKOM
6830 509 1780 315 UPC Broadband
3292 468 2078 403 TDC Data Networks
20940 459 131 355 Akamai Technologies European
12479 457 593 7 France Telecom Espana SA
8866 449 133 25 Bulgarian Telecommunication C
29049 432 32 47 AzerSat LLC.
3320 422 8151 368 Deutsche Telekom AG
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 1557 286 164 Types of queries are: POCs, o
8151 1252 2728 351 Uninet S.A. de C.V.
28573 1252 995 77 Types of queries are: POCs, o
7303 986 511 165 Telecom Argentina S.A.
6503 727 354 66 Axtel, S.A.B. de C.V.
14420 690 55 84 CORPORACION NACIONAL DE TELEC
22047 578 322 17 Types of queries are: POCs, o
3816 531 230 94 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 498 54 48 Telconet 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 792 147 34 LINKdotNET AS number
8452 781 445 11 TEDATA
15475 513 74 8 Nile Online
36992 313 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 227 13 5 Starcomms Nigeria Limited
24835 175 78 10 RAYA Telecom - Egypt
29571 158 17 11 Ci Telecom Autonomous system
16637 149 441 87 MTN Network Solutions
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 3598 3819 242 BellSouth.net Inc.
23456 2908 707 1566 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1909 11036 632 Korea Telecom (KIX)
1785 1809 681 121 PaeTec Communications, Inc.
4323 1657 1098 401 tw telecom holdings, inc.
20115 1594 1534 627 Charter Communications
10620 1557 286 164 Types of queries are: POCs, o
7545 1551 301 83 TPG Internet Pty Ltd
17974 1535 456 45 PT Telekomunikasi Indonesia
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 1809 1688 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1535 1490 PT Telekomunikasi Indonesia
7545 1551 1468 TPG Internet Pty Ltd
10620 1557 1393 Types of queries are: POCs, o
23456 2908 1342 32-bit ASN transition
4755 1499 1332 TATA Communications formerly
4766 1909 1277 Korea Telecom (KIX)
22773 1350 1262 Cox Communications Inc.
4323 1657 1256 tw telecom holdings, 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
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 /10:26 /11:80 /12:232
/13:464 /14:794 /15:1396 /16:11975 /17:5857 /18:9753
/19:19574 /20:25880 /21:26121 /22:34570 /23:33305 /24:187528
/25:13 /26:20 /27:25 /28:160 /29:108 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2214 3598 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
10620 1452 1557 Types of queries are: POCs, o
23456 1421 2908 32-bit ASN transition
11492 1092 1138 CABLE ONE, INC.
7029 1069 1389 Windstream Communications Inc
6478 1056 1085 AT&T Services, Inc.
7011 1056 1158 Frontier Communications of Am
1785 1053 1809 PaeTec Communications, Inc.
22773 864 1350 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:328 2:44 4:16 5:1 6:3 8:338
12:1963 13:1 14:473 15:15 16:3 17:5
20:10 23:14 24:1674 27:820 31:500 32:59
33:4 34:2 36:4 38:741 40:104 41:2557
42:32 44:3 46:1039 47:3 49:201 50:393
52:13 54:2 55:4 56:2 57:34 58:820
59:473 60:384 61:1018 62:1038 63:1924 64:3929
65:2298 66:3877 67:1873 68:1096 69:3042 70:753
71:386 72:1887 74:2408 75:316 76:340 77:886
78:709 79:466 80:1116 81:843 82:504 83:457
84:691 85:1066 86:523 87:766 88:337 89:1535
90:223 91:3959 92:522 93:1048 94:1340 95:858
96:410 97:260 98:891 99:37 101:72 103:145
106:11 107:22 108:70 109:1020 110:605 111:711
112:298 113:402 114:553 115:668 116:959 117:666
118:822 119:1159 120:312 121:651 122:1603 123:964
124:1267 125:1227 128:208 129:165 130:163 131:572
132:103 133:21 134:205 135:48 136:214 137:133
138:297 139:114 140:457 141:243 142:387 143:413
144:481 145:55 146:447 147:215 148:601 149:247
150:153 151:189 152:340 153:182 154:3 155:397
156:196 157:323 158:138 159:386 160:311 161:193
162:306 163:150 164:499 165:365 166:529 167:433
168:731 169:151 170:847 171:78 172:1 173:1598
174:609 175:365 176:143 177:175 178:999 180:886
181:23 182:478 183:231 184:344 185:1 186:1280
187:731 188:893 189:946 190:4976 192:5853 193:4988
194:3521 195:3056 196:1243 197:43 198:3526 199:3923
200:5478 201:1484 202:8205 203:8354 204:4157 205:2305
206:2587 207:2737 208:3969 209:3425 210:2597 211:1443
212:2116 213:1766 214:760 215:68 216:4905 217:1648
218:532 219:348 220:1196 221:480 222:312 223:214
End of report
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