Routing Table Report 08:00 +10GMT Fri 17 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355196
Prefixes after maximum aggregation: 161061
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178734
Total ASes present in the Internet Routing Table: 36583
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31589
Origin ASes announcing only one prefix: 15206
Transit ASes present in the Internet Routing Table: 4994
Transit-only ASes present in the Internet Routing Table: 114
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: 2212
Unregistered ASNs in the Routing Table: 526
Number of 32-bit ASNs allocated by the RIRs: 1459
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2647
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 138
Number of addresses announced to Internet: 2488259328
Equivalent to 148 /8s, 79 /16s and 211 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.0
Total number of prefixes smaller than registry allocations: 146561
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85394
Total APNIC prefixes after maximum aggregation: 28787
APNIC Deaggregation factor: 2.97
Prefixes being announced from the APNIC address blocks: 82742
Unique aggregates announced from the APNIC address blocks: 36924
APNIC Region origin ASes present in the Internet Routing Table: 4434
APNIC Prefixes per ASN: 18.66
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 672
Average APNIC Region AS path length visible: 4.0
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: 618702848
Equivalent to 36 /8s, 224 /16s and 168 /24s
Percentage of available APNIC address space announced: 78.5
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: 139802
Total ARIN prefixes after maximum aggregation: 71135
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 112054
Unique aggregates announced from the ARIN address blocks: 46211
ARIN Region origin ASes present in the Internet Routing Table: 14360
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5502
ARIN Region transit ASes present in the Internet Routing Table: 1449
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802020096
Equivalent to 47 /8s, 205 /16s and 219 /24s
Percentage of available ARIN address space announced: 63.7
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: 86026
Total RIPE prefixes after maximum aggregation: 48722
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79464
Unique aggregates announced from the RIPE address blocks: 52351
RIPE Region origin ASes present in the Internet Routing Table: 15711
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7858
RIPE Region transit ASes present in the Internet Routing Table: 2451
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: 477449728
Equivalent to 28 /8s, 117 /16s and 78 /24s
Percentage of available RIPE address space announced: 76.9
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: 32436
Total LACNIC prefixes after maximum aggregation: 7421
LACNIC Deaggregation factor: 4.37
Prefixes being announced from the LACNIC address blocks: 31830
Unique aggregates announced from the LACNIC address blocks: 16915
LACNIC Region origin ASes present in the Internet Routing Table: 1453
LACNIC Prefixes per ASN: 21.91
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 248
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: 84868352
Equivalent to 5 /8s, 14 /16s and 253 /24s
Percentage of available LACNIC address space announced: 56.2
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: 8157
Total AfriNIC prefixes after maximum aggregation: 2019
AfriNIC Deaggregation factor: 4.04
Prefixes being announced from the AfriNIC address blocks: 6303
Unique aggregates announced from the AfriNIC address blocks: 1959
AfriNIC Region origin ASes present in the Internet Routing Table: 462
AfriNIC Prefixes per ASN: 13.64
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 101
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: 24243712
Equivalent to 1 /8s, 113 /16s and 238 /24s
Percentage of available AfriNIC address space announced: 36.1
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 1899 9492 620 Korea Telecom (KIX)
17974 1559 449 42 PT Telekomunikasi Indonesia
7545 1538 301 86 TPG Internet Pty Ltd
4755 1478 374 164 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
7552 1143 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1043 879 56 National Internet Backbone
4808 952 2009 279 CNCGROUP IP network China169
17488 948 190 101 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 3630 3819 251 BellSouth.net Inc.
4323 1959 1097 398 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
1785 1798 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
20115 1524 1527 637 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7029 1412 1038 206 Alltel Information Services,
7018 1373 7088 899 AT&T Services, Inc.
22773 1341 2897 87 Cox Communications 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 31 Goldenlines main autonomous s
6830 512 1780 320 UPC Broadband
34984 481 102 202 BILISIM TELEKOM
3292 466 2078 401 TDC Data Networks
20940 463 135 355 Akamai Technologies European
29049 449 33 46 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 437 593 7 France Telecom Espana SA
3320 419 8151 366 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 1517 278 155 Types of queries are: POCs, o
28573 1265 992 79 Types of queries are: POCs, o
8151 1249 2710 356 Uninet S.A. de C.V.
7303 967 506 158 Telecom Argentina S.A.
6503 730 354 74 Axtel, S.A.B. de C.V.
14420 683 55 82 CORPORACION NACIONAL DE TELEC
22047 572 322 17 Types of queries are: POCs, o
3816 535 231 94 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
11172 494 100 85 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 792 147 35 LINKdotNET AS number
8452 759 445 11 TEDATA
15475 526 74 8 Nile Online
36992 306 415 16 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
24835 211 78 10 RAYA Telecom - Egypt
33776 192 12 18 Starcomms Nigeria Limited
29571 191 17 11 Ci Telecom Autonomous system
16637 153 441 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 3630 3819 251 BellSouth.net Inc.
23456 2647 654 1442 32-bit ASN transition
4323 1959 1097 398 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
4766 1899 9492 620 Korea Telecom (KIX)
1785 1798 681 122 PaeTec Communications, Inc.
6478 1728 319 50 AT&T Services, Inc.
17974 1559 449 42 PT Telekomunikasi Indonesia
7545 1538 301 86 TPG Internet Pty Ltd
20115 1524 1527 637 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
6478 1728 1678 AT&T Services, Inc.
18566 1912 1676 Covad Communications Co.
1785 1798 1676 PaeTec Communications, Inc.
4323 1959 1561 tw telecom holdings, inc.
17974 1559 1517 PT Telekomunikasi Indonesia
7545 1538 1452 TPG Internet Pty Ltd
10620 1517 1362 Types of queries are: POCs, o
4755 1478 1314 TATA Communications formerly
4766 1899 1279 Korea Telecom (KIX)
22773 1341 1254 Cox Communications 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
27.0.128.0/17 7514 Media EXchange, Inc.
31.132.0.0/21 9153 VAS-NET-US Autonomous System
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
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 /8:22 /9:12 /10:28 /11:81 /12:230
/13:462 /14:800 /15:1394 /16:11915 /17:5823 /18:9730
/19:19464 /20:26030 /21:25932 /22:34124 /23:32937 /24:185699
/25:13 /26:17 /27:26 /28:162 /29:104 /30:57
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2232 3630 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1682 1728 AT&T Services, Inc.
10620 1407 1517 Types of queries are: POCs, o
23456 1304 2647 32-bit ASN transition
7029 1091 1412 Alltel Information Services,
11492 1090 1136 CABLE ONE, INC.
7011 1060 1160 Frontier Communications of Am
1785 1049 1798 PaeTec Communications, Inc.
4323 869 1959 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:285 2:44 4:16 5:1 6:3 8:336
12:1973 13:1 14:445 15:15 16:3 17:8
20:10 23:11 24:1647 27:786 31:443 32:59
33:4 34:2 37:1 38:729 40:103 41:2434
42:2 44:3 46:970 47:3 49:187 50:409
52:13 54:2 55:5 56:2 57:30 58:800
59:470 60:385 61:1019 62:1048 63:1927 64:3915
65:2219 66:4125 67:1888 68:1081 69:2996 70:721
71:376 72:1848 74:2367 75:318 76:339 77:879
78:705 79:468 80:1106 81:849 82:498 83:464
84:668 85:1082 86:580 87:759 88:364 89:1524
90:208 91:3852 92:512 93:1048 94:1314 95:831
96:440 97:250 98:886 99:36 101:61 103:71
106:6 107:13 108:82 109:999 110:606 111:705
112:289 113:392 114:540 115:659 116:947 117:674
118:788 119:1133 120:308 121:645 122:1623 123:937
124:1260 125:1219 128:205 129:168 130:159 131:575
132:102 133:16 134:206 135:48 136:212 137:135
138:300 139:111 140:458 141:238 142:388 143:414
144:488 145:54 146:444 147:211 148:589 149:246
150:163 151:190 152:330 153:180 154:3 155:398
156:192 157:323 158:137 159:374 160:317 161:200
162:311 163:154 164:499 165:350 166:532 167:423
168:735 169:155 170:834 171:77 172:1 173:1620
174:602 175:359 176:135 177:168 178:996 180:879
181:19 182:460 183:218 184:303 185:1 186:1228
187:743 188:846 189:907 190:4868 192:5805 193:4948
194:3487 195:3033 196:1233 197:22 198:3530 199:3912
200:5442 201:1482 202:8094 203:8306 204:4113 205:2312
206:2600 207:2741 208:3919 209:3430 210:2636 211:1413
212:2007 213:1726 214:768 215:69 216:4899 217:1635
218:534 219:360 220:1196 221:475 222:310 223:158
End of report
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