Routing Table Report 08:00 +10GMT Wed 01 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 353312
Prefixes after maximum aggregation: 160153
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 177523
Total ASes present in the Internet Routing Table: 36453
Prefixes per ASN: 9.69
Origin-only ASes present in the Internet Routing Table: 31500
Origin ASes announcing only one prefix: 15163
Transit ASes present in the Internet Routing Table: 4953
Transit-only ASes present in the Internet Routing Table: 116
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: 2111
Unregistered ASNs in the Routing Table: 473
Number of 32-bit ASNs allocated by the RIRs: 1401
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2561
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 171
Number of addresses announced to Internet: 2457404672
Equivalent to 146 /8s, 121 /16s and 5 /24s
Percentage of available address space announced: 66.3
Percentage of allocated address space announced: 66.3
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: 145737
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84936
Total APNIC prefixes after maximum aggregation: 28740
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82243
Unique aggregates announced from the APNIC address blocks: 36751
APNIC Region origin ASes present in the Internet Routing Table: 4419
APNIC Prefixes per ASN: 18.61
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 667
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: 618024960
Equivalent to 36 /8s, 214 /16s and 80 /24s
Percentage of available APNIC address space announced: 78.4
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: 139141
Total ARIN prefixes after maximum aggregation: 70793
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 111711
Unique aggregates announced from the ARIN address blocks: 45896
ARIN Region origin ASes present in the Internet Routing Table: 14323
ARIN Prefixes per ASN: 7.80
ARIN Region origin ASes announcing only one prefix: 5483
ARIN Region transit ASes present in the Internet Routing Table: 1437
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: 801944832
Equivalent to 47 /8s, 204 /16s and 181 /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: 85315
Total RIPE prefixes after maximum aggregation: 48379
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78698
Unique aggregates announced from the RIPE address blocks: 51895
RIPE Region origin ASes present in the Internet Routing Table: 15640
RIPE Prefixes per ASN: 5.03
RIPE Region origin ASes announcing only one prefix: 7836
RIPE Region transit ASes present in the Internet Routing Table: 2438
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: 474654976
Equivalent to 28 /8s, 74 /16s and 169 /24s
Percentage of available RIPE address space announced: 76.5
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: 32376
Total LACNIC prefixes after maximum aggregation: 7420
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31814
Unique aggregates announced from the LACNIC address blocks: 16899
LACNIC Region origin ASes present in the Internet Routing Table: 1448
LACNIC Prefixes per ASN: 21.97
LACNIC Region origin ASes announcing only one prefix: 435
LACNIC Region transit ASes present in the Internet Routing Table: 253
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: 84316928
Equivalent to 5 /8s, 6 /16s and 147 /24s
Percentage of available LACNIC address space announced: 55.8
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: 8275
Total AfriNIC prefixes after maximum aggregation: 1962
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6389
Unique aggregates announced from the AfriNIC address blocks: 1908
AfriNIC Region origin ASes present in the Internet Routing Table: 457
AfriNIC Prefixes per ASN: 13.98
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 100
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: 23545600
Equivalent to 1 /8s, 103 /16s and 71 /24s
Percentage of available AfriNIC address space announced: 35.1
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 1902 9492 618 Korea Telecom (KIX)
17974 1518 440 39 PT Telekomunikasi Indonesia
7545 1491 301 86 TPG Internet Pty Ltd
4755 1472 635 168 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1138 1064 7 Vietel Corporation
9583 1077 80 509 Sify Limited
9829 1041 877 53 National Internet Backbone
4808 955 2014 277 CNCGROUP IP network China169
18101 933 116 141 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 3639 3822 255 BellSouth.net Inc.
4323 1972 1097 400 tw telecom holdings, inc.
18566 1874 355 270 Covad Communications Co.
1785 1792 681 123 PaeTec Communications, Inc.
6478 1705 317 42 AT&T Services, Inc.
20115 1535 1540 633 Charter Communications
19262 1491 4936 307 Verizon Online LLC
7018 1374 7085 897 AT&T Services, Inc.
22773 1335 2897 88 Cox Communications Inc.
11492 1277 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 539 326 30 Goldenlines main autonomous s
34984 516 106 178 BILISIM TELEKOM
6830 515 1780 319 UPC Broadband
3292 461 2078 396 TDC Data Networks
20940 457 134 349 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 429 577 6 France Telecom Espana SA
3320 424 8152 369 Deutsche Telekom AG
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 1503 275 158 Types of queries are: POCs, o
28573 1308 992 86 Types of queries are: POCs, o
8151 1242 2691 358 Uninet S.A. de C.V.
7303 935 503 140 Telecom Argentina S.A.
6503 722 354 74 Axtel, S.A.B. de C.V.
14420 671 54 89 CORPORACION NACIONAL DE TELEC
22047 565 310 15 Types of queries are: POCs, o
3816 525 229 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 514 262 123 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 868 445 11 TEDATA
24863 781 147 35 LINKdotNET AS number
15475 541 90 8 Nile Online
36992 307 399 15 Etisalat MISR
3741 263 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 213 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
11380 181 125 57 INTERNETOFFICEPARKS
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 3639 3822 255 BellSouth.net Inc.
23456 2561 636 1382 32-bit ASN transition
4323 1972 1097 400 tw telecom holdings, inc.
4766 1902 9492 618 Korea Telecom (KIX)
18566 1874 355 270 Covad Communications Co.
1785 1792 681 123 PaeTec Communications, Inc.
6478 1705 317 42 AT&T Services, Inc.
20115 1535 1540 633 Charter Communications
17974 1518 440 39 PT Telekomunikasi Indonesia
10620 1503 275 158 Types of queries are: POCs, o
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 1792 1669 PaeTec Communications, Inc.
6478 1705 1663 AT&T Services, Inc.
18566 1874 1604 Covad Communications Co.
4323 1972 1572 tw telecom holdings, inc.
17974 1518 1479 PT Telekomunikasi Indonesia
7545 1491 1405 TPG Internet Pty Ltd
10620 1503 1345 Types of queries are: POCs, o
4755 1472 1304 TATA Communications formerly
4766 1902 1284 Korea Telecom (KIX)
11492 1277 1262 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
27.0.128.0/17 7514 Media EXchange, Inc.
31.131.8.0/21 51962 ERDENI SRL
31.131.32.0/21 12700 SC-VEKTOR-AS
41.190.32.0/23 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 /8:21 /9:12 /10:28 /11:81 /12:228
/13:461 /14:795 /15:1393 /16:11735 /17:5817 /18:9686
/19:19417 /20:25742 /21:25881 /22:33919 /23:32761 /24:184846
/25:13 /26:17 /27:25 /28:160 /29:97 /30:53
/31:0 /32:124
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2239 3639 BellSouth.net Inc.
18566 1837 1874 Covad Communications Co.
6478 1659 1705 AT&T Services, Inc.
10620 1393 1503 Types of queries are: POCs, o
23456 1249 2561 32-bit ASN transition
11492 1223 1277 CABLE ONE, INC.
7011 1061 1160 Frontier Communications of Am
1785 1051 1792 PaeTec Communications, Inc.
4323 884 1972 tw telecom holdings, inc.
22773 850 1335 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:278 2:45 4:16 5:1 6:3 8:337
12:1976 13:1 14:456 15:15 16:3 17:8
20:10 23:6 24:1643 27:778 31:359 32:55
33:4 34:2 37:1 38:734 40:102 41:2566
42:6 44:3 46:930 47:3 49:194 50:424
52:13 54:2 55:6 56:2 57:28 58:798
59:475 60:385 61:1058 62:1040 63:1934 64:3922
65:2289 66:4135 67:1872 68:1075 69:2993 70:704
71:352 72:1894 73:1 74:2353 75:303 76:339
77:869 78:696 79:468 80:1085 81:836 82:499
83:434 84:677 85:1066 86:591 87:751 88:332
89:1530 90:203 91:3772 92:516 93:1045 94:1281
95:799 96:501 97:250 98:856 99:35 101:50
103:33 106:1 107:7 108:85 109:937 110:600
111:701 112:296 113:395 114:535 115:671 116:937
117:689 118:789 119:1133 120:309 121:648 122:1618
123:982 124:1258 125:1210 128:210 129:167 130:158
131:567 132:101 133:19 134:205 135:47 136:212
137:140 138:300 139:108 140:463 141:239 142:388
143:401 144:481 145:54 146:442 147:210 148:581
149:241 150:162 151:186 152:326 153:176 154:2
155:397 156:191 157:322 158:138 159:373 160:316
161:199 162:279 163:154 164:500 165:350 166:515
167:428 168:724 169:153 170:799 171:77 172:1
173:1555 174:551 175:358 176:130 177:147 178:992
180:846 181:18 182:441 183:210 184:286 185:1
186:1196 187:771 188:844 189:895 190:4816 192:5785
193:4899 194:3486 195:2987 196:1231 197:19 198:3517
199:3878 200:5514 201:1477 202:8058 203:8257 204:4097
205:2293 206:2593 207:2803 208:3954 209:3441 210:2644
211:1387 212:2001 213:1723 214:727 215:72 216:4885
217:1628 218:539 219:361 220:1193 221:475 222:308
223:147
End of report
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