Routing Table Report 08:00 +10GMT Mon 11 Apr, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 347478
Prefixes after maximum aggregation: 158138
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 174519
Total ASes present in the Internet Routing Table: 36090
Prefixes per ASN: 9.63
Origin-only ASes present in the Internet Routing Table: 31210
Origin ASes announcing only one prefix: 15034
Transit ASes present in the Internet Routing Table: 4880
Transit-only ASes present in the Internet Routing Table: 113
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 25
Max AS path prepend of ASN (32374) 19
Prefixes from unregistered ASNs in the Routing Table: 1958
Unregistered ASNs in the Routing Table: 354
Number of 32-bit ASNs allocated by the RIRs: 1281
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2169
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 172
Number of addresses announced to Internet: 2422333184
Equivalent to 144 /8s, 97 /16s and 223 /24s
Percentage of available address space announced: 65.4
Percentage of allocated address space announced: 65.4
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.3
Total number of prefixes smaller than registry allocations: 142278
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 83776
Total APNIC prefixes after maximum aggregation: 28497
APNIC Deaggregation factor: 2.94
Prefixes being announced from the APNIC address blocks: 81571
Unique aggregates announced from the APNIC address blocks: 36781
APNIC Region origin ASes present in the Internet Routing Table: 4339
APNIC Prefixes per ASN: 18.80
APNIC Region origin ASes announcing only one prefix: 1234
APNIC Region transit ASes present in the Internet Routing Table: 666
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 23
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 605012736
Equivalent to 36 /8s, 15 /16s and 195 /24s
Percentage of available APNIC address space announced: 76.7
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: 137561
Total ARIN prefixes after maximum aggregation: 70435
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 110521
Unique aggregates announced from the ARIN address blocks: 45115
ARIN Region origin ASes present in the Internet Routing Table: 14225
ARIN Prefixes per ASN: 7.77
ARIN Region origin ASes announcing only one prefix: 5445
ARIN Region transit ASes present in the Internet Routing Table: 1414
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 22
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 797862656
Equivalent to 47 /8s, 142 /16s and 107 /24s
Percentage of available ARIN address space announced: 63.4
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: 83675
Total RIPE prefixes after maximum aggregation: 47591
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 76926
Unique aggregates announced from the RIPE address blocks: 50521
RIPE Region origin ASes present in the Internet Routing Table: 15489
RIPE Prefixes per ASN: 4.97
RIPE Region origin ASes announcing only one prefix: 7786
RIPE Region transit ASes present in the Internet Routing Table: 2392
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 464155136
Equivalent to 27 /8s, 170 /16s and 114 /24s
Percentage of available RIPE address space announced: 74.8
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: 31965
Total LACNIC prefixes after maximum aggregation: 7335
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31089
Unique aggregates announced from the LACNIC address blocks: 16334
LACNIC Region origin ASes present in the Internet Routing Table: 1425
LACNIC Prefixes per ASN: 21.82
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 251
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 81750272
Equivalent to 4 /8s, 223 /16s and 105 /24s
Percentage of available LACNIC address space announced: 54.1
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: 7590
Total AfriNIC prefixes after maximum aggregation: 1834
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 5952
Unique aggregates announced from the AfriNIC address blocks: 1864
AfriNIC Region origin ASes present in the Internet Routing Table: 443
AfriNIC Prefixes per ASN: 13.44
AfriNIC Region origin ASes announcing only one prefix: 134
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 3.4
Max AfriNIC Region AS path length visible: 17
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 0
Number of AfriNIC addresses announced to Internet: 22714112
Equivalent to 1 /8s, 90 /16s and 151 /24s
Percentage of available AfriNIC address space announced: 33.8
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 1876 9507 605 Korea Telecom (KIX)
7545 1543 301 83 TPG Internet Pty Ltd
17974 1446 472 34 PT Telekomunikasi Indonesia
4755 1443 638 169 TATA Communications formerly
24560 1137 322 203 Bharti Airtel Ltd., Telemedia
9583 1056 77 495 Sify Limited
9829 1006 869 51 National Internet Backbone
4808 949 2028 277 CNCGROUP IP network China169
17488 940 162 98 Hathway IP Over Cable Interne
18101 936 116 140 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 3667 3822 256 BellSouth.net Inc.
4323 2540 1106 397 tw telecom holdings, inc.
1785 1794 681 131 PaeTec Communications, Inc.
18566 1633 333 200 Covad Communications Co.
6478 1612 306 37 AT&T Services, Inc.
20115 1536 1551 641 Charter Communications
19262 1490 4948 296 Verizon Online LLC
7018 1365 6962 892 AT&T Services, Inc.
22773 1293 2865 84 Cox Communications Inc.
2386 1270 536 913 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 541 326 30 Goldenlines main autonomous s
6830 513 1780 318 UPC Broadband
34984 495 97 188 BILISIM TELEKOM
29049 468 34 34 AzerSat LLC.
3292 455 2013 392 TDC Data Networks
8866 446 134 26 Bulgarian Telecommunication C
20940 445 129 341 Akamai Technologies European
3320 418 7607 364 Deutsche Telekom AG
8551 405 355 38 Bezeq International
12479 401 577 6 France Telecom Espana SA
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 1418 263 155 Types of queries are: POCs, o
28573 1253 972 86 Types of queries are: POCs, o
8151 1231 2665 364 Uninet S.A. de C.V.
6503 959 354 73 Axtel, S.A.B. de C.V.
7303 900 464 136 Telecom Argentina S.A.
14420 645 52 89 CORPORACION NACIONAL DE TELEC
22047 567 310 15 Types of queries are: POCs, o
3816 517 225 97 Types of queries are: POCs, o
11172 485 99 81 Alestra, S. de R.L. de C.V.
7738 479 922 30 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
8452 837 445 11 TEDATA
24863 736 146 41 LINKdotNET AS number
15475 425 90 8 Nile Online
36992 295 287 12 Etisalat MISR
3741 266 985 227 The Internet Solution
6713 231 215 12 Itissalat Al-MAGHRIB
24835 230 78 10 RAYA Telecom - Egypt
33776 212 12 8 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 147 441 86 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 3667 3822 256 BellSouth.net Inc.
4323 2540 1106 397 tw telecom holdings, inc.
23456 2169 635 1173 32-bit ASN transition
4766 1876 9507 605 Korea Telecom (KIX)
1785 1794 681 131 PaeTec Communications, Inc.
18566 1633 333 200 Covad Communications Co.
6478 1612 306 37 AT&T Services, Inc.
7545 1543 301 83 TPG Internet Pty Ltd
20115 1536 1551 641 Charter Communications
19262 1490 4948 296 Verizon Online LLC
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2540 2143 tw telecom holdings, inc.
1785 1794 1663 PaeTec Communications, Inc.
6478 1612 1575 AT&T Services, Inc.
7545 1543 1460 TPG Internet Pty Ltd
18566 1633 1433 Covad Communications Co.
17974 1446 1412 PT Telekomunikasi Indonesia
4755 1443 1274 TATA Communications formerly
4766 1876 1271 Korea Telecom (KIX)
10620 1418 1263 Types of queries are: POCs, o
11492 1262 1247 CABLE ONE, 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
13746 UNALLOCATED 12.24.56.0/24 7018 AT&T Services, Inc.
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.
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
1.3.0.0/16 38639 for assignment to JPNIC membe
2.56.0.0/16 44559 E-Rent LLC
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
41.57.192.0/18 22750 BCSNET
41.222.79.0/24 36938 >>UNKNOWN<<
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 /10:26 /11:74 /12:219
/13:452 /14:769 /15:1374 /16:11555 /17:5699 /18:9391
/19:19209 /20:25035 /21:25351 /22:33443 /23:31992 /24:182385
/25:11 /26:17 /27:24 /28:156 /29:96 /30:52
/31:0 /32:116
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2263 3667 BellSouth.net Inc.
18566 1611 1633 Covad Communications Co.
6478 1566 1612 AT&T Services, Inc.
4323 1360 2540 tw telecom holdings, inc.
10620 1308 1418 Types of queries are: POCs, o
11492 1211 1262 CABLE ONE, INC.
23456 1117 2169 32-bit ASN transition
7011 1061 1161 Frontier Communications of Am
1785 1057 1794 PaeTec Communications, Inc.
22773 837 1293 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:300 2:55 4:14 5:1 8:349 12:1983
13:1 14:420 15:15 16:3 17:8 20:9
23:5 24:1596 27:707 31:215 32:55 33:3
34:2 37:1 38:747 39:1 40:100 41:2348
42:1 44:3 46:812 47:4 49:170 50:218
52:13 55:3 56:2 57:29 58:794 59:478
60:385 61:1062 62:997 63:1916 64:3861 65:2331
66:4298 67:1801 68:1079 69:2944 70:697 71:344
72:1897 73:1 74:2320 75:284 76:336 77:803
78:683 79:458 80:1071 81:826 82:508 83:461
84:646 85:1041 86:566 87:768 88:316 89:1586
90:178 91:3686 92:503 93:1059 94:1257 95:777
96:443 97:252 98:817 99:35 101:53 106:2
107:4 108:78 109:945 110:535 111:675 112:314
113:382 114:491 115:700 116:916 117:671 118:762
119:1123 120:287 121:689 122:1621 123:1037 124:1247
125:1253 128:213 129:161 130:167 131:562 132:102
133:20 134:208 135:49 136:210 137:136 138:301
139:98 140:373 141:174 142:360 143:388 144:475
145:53 146:438 147:204 148:579 149:262 150:160
151:187 152:300 153:180 154:2 155:393 156:186
157:325 158:132 159:373 160:316 161:234 162:276
163:154 164:489 165:342 166:510 167:418 168:717
169:151 170:774 171:74 172:1 173:1255 174:537
175:341 177:78 178:836 180:797 181:7 182:404
183:200 184:240 185:1 186:1121 187:828 188:938
189:1018 190:4810 192:5708 193:4810 194:3466 195:2951
196:1212 197:17 198:3519 199:3868 200:5534 201:1478
202:8113 203:8333 204:4053 205:2302 206:2550 207:2944
208:3915 209:3471 210:2650 211:1354 212:1979 213:1709
214:728 215:67 216:4844 217:1644 218:544 219:383
220:1188 221:462 222:306 223:102
End of report
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