Routing Table Report 08:00 +10GMT Wed 11 May, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 351917
Prefixes after maximum aggregation: 159527
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 175842
Total ASes present in the Internet Routing Table: 36299
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31378
Origin ASes announcing only one prefix: 15103
Transit ASes present in the Internet Routing Table: 4921
Transit-only ASes present in the Internet Routing Table: 115
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1989
Unregistered ASNs in the Routing Table: 403
Number of 32-bit ASNs allocated by the RIRs: 1337
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2386
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 151
Number of addresses announced to Internet: 2441760256
Equivalent to 145 /8s, 138 /16s and 78 /24s
Percentage of available address space announced: 65.9
Percentage of allocated address space announced: 65.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 90.7
Total number of prefixes smaller than registry allocations: 144830
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85100
Total APNIC prefixes after maximum aggregation: 28619
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82303
Unique aggregates announced from the APNIC address blocks: 36592
APNIC Region origin ASes present in the Internet Routing Table: 4392
APNIC Prefixes per ASN: 18.74
APNIC Region origin ASes announcing only one prefix: 1247
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: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 612961536
Equivalent to 36 /8s, 137 /16s and 13 /24s
Percentage of available APNIC address space announced: 77.7
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: 139265
Total ARIN prefixes after maximum aggregation: 70899
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111835
Unique aggregates announced from the ARIN address blocks: 45375
ARIN Region origin ASes present in the Internet Routing Table: 14299
ARIN Prefixes per ASN: 7.82
ARIN Region origin ASes announcing only one prefix: 5484
ARIN Region transit ASes present in the Internet Routing Table: 1428
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: 800083200
Equivalent to 47 /8s, 176 /16s and 77 /24s
Percentage of available ARIN address space announced: 63.6
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: 84545
Total RIPE prefixes after maximum aggregation: 48081
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 77971
Unique aggregates announced from the RIPE address blocks: 51283
RIPE Region origin ASes present in the Internet Routing Table: 15557
RIPE Prefixes per ASN: 5.01
RIPE Region origin ASes announcing only one prefix: 7796
RIPE Region transit ASes present in the Internet Routing Table: 2418
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 27
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 468300800
Equivalent to 27 /8s, 233 /16s and 180 /24s
Percentage of available RIPE address space announced: 75.4
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: 32164
Total LACNIC prefixes after maximum aggregation: 7381
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31343
Unique aggregates announced from the LACNIC address blocks: 16618
LACNIC Region origin ASes present in the Internet Routing Table: 1439
LACNIC Prefixes per ASN: 21.78
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 254
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: 83247872
Equivalent to 4 /8s, 246 /16s and 67 /24s
Percentage of available LACNIC address space announced: 55.1
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: 7768
Total AfriNIC prefixes after maximum aggregation: 1859
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6119
Unique aggregates announced from the AfriNIC address blocks: 1896
AfriNIC Region origin ASes present in the Internet Routing Table: 446
AfriNIC Prefixes per ASN: 13.72
AfriNIC Region origin ASes announcing only one prefix: 137
AfriNIC Region transit ASes present in the Internet Routing Table: 96
Average AfriNIC Region AS path length visible: 3.5
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: 23074304
Equivalent to 1 /8s, 96 /16s and 22 /24s
Percentage of available AfriNIC address space announced: 34.4
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 1890 9485 612 Korea Telecom (KIX)
7545 1546 301 86 TPG Internet Pty Ltd
17974 1506 470 34 PT Telekomunikasi Indonesia
4755 1460 634 166 TATA Communications formerly
24560 1152 336 184 Bharti Airtel Ltd., Telemedia
7552 1103 1064 7 Vietel Corporation
9583 1081 81 512 Sify Limited
9829 1039 874 51 National Internet Backbone
4808 950 2017 277 CNCGROUP IP network China169
17488 936 165 100 Hathway IP Over Cable Interne
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 3647 3822 256 BellSouth.net Inc.
4323 2561 1104 400 tw telecom holdings, inc.
1785 1787 681 127 PaeTec Communications, Inc.
18566 1734 346 227 Covad Communications Co.
6478 1668 313 51 AT&T Services, Inc.
20115 1529 1538 635 Charter Communications
19262 1496 4949 298 Verizon Online LLC
7018 1367 6960 896 AT&T Services, Inc.
22773 1329 2897 87 Cox Communications Inc.
11492 1276 240 15 CABLE ONE, 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
9116 540 326 30 Goldenlines main autonomous s
6830 517 1780 320 UPC Broadband
34984 510 106 182 BILISIM TELEKOM
3292 458 1998 392 TDC Data Networks
20940 450 132 345 Akamai Technologies European
29049 443 33 43 AzerSat LLC.
8866 442 134 26 Bulgarian Telecommunication C
3320 422 7609 367 Deutsche Telekom AG
12479 417 577 6 France Telecom Espana SA
8551 407 356 39 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 1467 270 155 Types of queries are: POCs, o
28573 1282 990 86 Types of queries are: POCs, o
8151 1236 2681 355 Uninet S.A. de C.V.
7303 906 469 138 Telecom Argentina S.A.
6503 725 354 74 Axtel, S.A.B. de C.V.
14420 665 53 91 CORPORACION NACIONAL DE TELEC
22047 554 310 15 Types of queries are: POCs, o
3816 518 226 98 Types of queries are: POCs, o
11172 493 100 83 Alestra, S. de R.L. de C.V.
13489 489 238 118 EPM Telecomunicaciones S.A. E
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 896 445 11 TEDATA
24863 779 147 35 LINKdotNET AS number
15475 419 90 8 Nile Online
36992 288 331 17 Etisalat MISR
3741 268 985 228 The Internet Solution
6713 240 215 13 Itissalat Al-MAGHRIB
24835 207 78 10 RAYA Telecom - Egypt
33776 196 12 12 Starcomms Nigeria Limited
29571 161 17 11 Ci Telecom Autonomous system
16637 149 441 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 3647 3822 256 BellSouth.net Inc.
4323 2561 1104 400 tw telecom holdings, inc.
23456 2386 677 1297 32-bit ASN transition
4766 1890 9485 612 Korea Telecom (KIX)
1785 1787 681 127 PaeTec Communications, Inc.
18566 1734 346 227 Covad Communications Co.
6478 1668 313 51 AT&T Services, Inc.
7545 1546 301 86 TPG Internet Pty Ltd
20115 1529 1538 635 Charter Communications
17974 1506 470 34 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
4323 2561 2161 tw telecom holdings, inc.
1785 1787 1660 PaeTec Communications, Inc.
6478 1668 1617 AT&T Services, Inc.
18566 1734 1507 Covad Communications Co.
17974 1506 1472 PT Telekomunikasi Indonesia
7545 1546 1460 TPG Internet Pty Ltd
10620 1467 1312 Types of queries are: POCs, o
4755 1460 1294 TATA Communications formerly
4766 1890 1278 Korea Telecom (KIX)
11492 1276 1261 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
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
31.130.240.0/21 51333 Skynet Trading SRL
31.211.184.0/21 174 Cogent Communications
41.222.79.0/24 36938 >>UNKNOWN<<
41.223.92.0/22 36936 >>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 /8:21 /9:12 /10:28 /11:78 /12:223
/13:458 /14:789 /15:1392 /16:11688 /17:5766 /18:9621
/19:19391 /20:25543 /21:25742 /22:33847 /23:32530 /24:184309
/25:11 /26:17 /27:24 /28:160 /29:96 /30:53
/31:0 /32:118
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2247 3647 BellSouth.net Inc.
18566 1702 1734 Covad Communications Co.
6478 1622 1668 AT&T Services, Inc.
10620 1357 1467 Types of queries are: POCs, o
4323 1269 2561 tw telecom holdings, inc.
11492 1222 1276 CABLE ONE, INC.
23456 1173 2386 32-bit ASN transition
7011 1062 1162 Frontier Communications of Am
1785 1053 1787 PaeTec Communications, Inc.
22773 846 1329 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:262 2:57 4:14 5:1 6:3 8:353
12:1988 13:1 14:441 15:15 16:3 17:8
20:10 23:6 24:1634 27:733 31:306 32:55
33:3 34:2 37:1 38:760 40:101 41:2461
42:5 44:3 46:897 47:4 49:172 50:394
52:13 55:5 56:2 57:29 58:795 59:478
60:386 61:1075 62:984 63:1921 64:3905 65:2295
66:4297 67:1876 68:1092 69:2974 70:696 71:349
72:1884 73:1 74:2342 75:308 76:340 77:865
78:688 79:468 80:1093 81:818 82:494 83:453
84:624 85:1075 86:587 87:757 88:327 89:1590
90:195 91:3709 92:510 93:1048 94:1255 95:806
96:478 97:255 98:841 99:35 101:61 103:12
106:1 107:6 108:85 109:939 110:581 111:704
112:311 113:392 114:526 115:651 116:927 117:680
118:780 119:1135 120:303 121:650 122:1617 123:1059
124:1248 125:1207 128:207 129:159 130:159 131:566
132:101 133:19 134:210 135:49 136:211 137:140
138:302 139:111 140:461 141:239 142:384 143:397
144:484 145:53 146:436 147:208 148:580 149:242
150:163 151:187 152:310 153:179 154:15 155:396
156:191 157:324 158:131 159:379 160:314 161:198
162:278 163:177 164:499 165:349 166:513 167:424
168:720 169:152 170:787 171:76 172:1 173:1549
174:552 175:357 177:111 178:890 180:821 181:20
182:427 183:208 184:262 185:1 186:1149 187:763
188:824 189:904 190:4839 192:5746 193:4848 194:3475
195:2981 196:1195 197:16 198:3519 199:3865 200:5466
201:1494 202:8126 203:8323 204:4071 205:2293 206:2649
207:2969 208:3958 209:3470 210:2652 211:1367 212:1982
213:1725 214:731 215:69 216:4868 217:1664 218:554
219:368 220:1200 221:467 222:310 223:144
End of report
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