Routing Table Report 08:00 +10GMT Tue 07 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 353979
Prefixes after maximum aggregation: 160747
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178229
Total ASes present in the Internet Routing Table: 36498
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31524
Origin ASes announcing only one prefix: 15172
Transit ASes present in the Internet Routing Table: 4974
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: 29
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2133
Unregistered ASNs in the Routing Table: 489
Number of 32-bit ASNs allocated by the RIRs: 1431
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2609
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 163
Number of addresses announced to Internet: 2467793408
Equivalent to 147 /8s, 23 /16s and 138 /24s
Percentage of available address space announced: 66.6
Percentage of allocated address space announced: 66.6
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: 145971
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85032
Total APNIC prefixes after maximum aggregation: 28779
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82335
Unique aggregates announced from the APNIC address blocks: 36717
APNIC Region origin ASes present in the Internet Routing Table: 4420
APNIC Prefixes per ASN: 18.63
APNIC Region origin ASes announcing only one prefix: 1263
APNIC Region transit ASes present in the Internet Routing Table: 670
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: 618243072
Equivalent to 36 /8s, 217 /16s and 164 /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: 139223
Total ARIN prefixes after maximum aggregation: 71091
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111606
Unique aggregates announced from the ARIN address blocks: 46177
ARIN Region origin ASes present in the Internet Routing Table: 14346
ARIN Prefixes per ASN: 7.78
ARIN Region origin ASes announcing only one prefix: 5493
ARIN Region transit ASes present in the Internet Routing Table: 1446
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: 801771264
Equivalent to 47 /8s, 202 /16s and 15 /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: 85774
Total RIPE prefixes after maximum aggregation: 48568
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79170
Unique aggregates announced from the RIPE address blocks: 52127
RIPE Region origin ASes present in the Internet Routing Table: 15662
RIPE Prefixes per ASN: 5.05
RIPE Region origin ASes announcing only one prefix: 7836
RIPE Region transit ASes present in the Internet Routing Table: 2442
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: 475560448
Equivalent to 28 /8s, 88 /16s and 122 /24s
Percentage of available RIPE address space announced: 76.6
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: 32424
Total LACNIC prefixes after maximum aggregation: 7409
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31857
Unique aggregates announced from the LACNIC address blocks: 16919
LACNIC Region origin ASes present in the Internet Routing Table: 1448
LACNIC Prefixes per ASN: 22.00
LACNIC Region origin ASes announcing only one prefix: 440
LACNIC Region transit ASes present in the Internet Routing Table: 250
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 29
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 84666112
Equivalent to 5 /8s, 11 /16s and 231 /24s
Percentage of available LACNIC address space announced: 56.1
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: 8203
Total AfriNIC prefixes after maximum aggregation: 1972
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6340
Unique aggregates announced from the AfriNIC address blocks: 1948
AfriNIC Region origin ASes present in the Internet Routing Table: 458
AfriNIC Prefixes per ASN: 13.84
AfriNIC Region origin ASes announcing only one prefix: 140
AfriNIC Region transit ASes present in the Internet Routing Table: 103
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: 23587584
Equivalent to 1 /8s, 103 /16s and 235 /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 1901 9492 618 Korea Telecom (KIX)
17974 1546 441 38 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
4755 1470 374 164 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1141 1064 7 Vietel Corporation
9583 1081 80 509 Sify Limited
9829 1041 878 59 National Internet Backbone
4808 959 2015 278 CNCGROUP IP network China169
18101 933 116 140 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 3639 3822 257 BellSouth.net Inc.
4323 1976 1097 401 tw telecom holdings, inc.
18566 1874 355 268 Covad Communications Co.
1785 1793 681 122 PaeTec Communications, Inc.
6478 1716 318 45 AT&T Services, Inc.
20115 1535 1540 633 Charter Communications
19262 1473 4887 333 Verizon Online LLC
7018 1377 7101 904 AT&T Services, Inc.
22773 1338 2897 88 Cox Communications Inc.
2386 1262 536 910 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 539 326 30 Goldenlines main autonomous s
34984 517 106 179 BILISIM TELEKOM
6830 516 1780 320 UPC Broadband
3292 461 2078 396 TDC Data Networks
20940 458 134 350 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 431 593 7 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 1512 278 157 Types of queries are: POCs, o
28573 1305 992 86 Types of queries are: POCs, o
8151 1245 2707 355 Uninet S.A. de C.V.
7303 937 504 142 Telecom Argentina S.A.
6503 726 354 74 Axtel, S.A.B. de C.V.
14420 675 54 89 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 528 231 92 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 514 262 125 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
24863 790 147 35 LINKdotNET AS number
8452 774 445 11 TEDATA
15475 524 74 8 Nile Online
36992 308 415 15 Etisalat MISR
3741 264 937 225 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 210 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 257 BellSouth.net Inc.
23456 2609 645 1417 32-bit ASN transition
4323 1976 1097 401 tw telecom holdings, inc.
4766 1901 9492 618 Korea Telecom (KIX)
18566 1874 355 268 Covad Communications Co.
1785 1793 681 122 PaeTec Communications, Inc.
6478 1716 318 45 AT&T Services, Inc.
17974 1546 441 38 PT Telekomunikasi Indonesia
7545 1536 301 85 TPG Internet Pty Ltd
20115 1535 1540 633 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
1785 1793 1671 PaeTec Communications, Inc.
6478 1716 1671 AT&T Services, Inc.
18566 1874 1606 Covad Communications Co.
4323 1976 1575 tw telecom holdings, inc.
17974 1546 1508 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1512 1355 Types of queries are: POCs, o
4755 1470 1306 TATA Communications formerly
4766 1901 1283 Korea Telecom (KIX)
22773 1338 1250 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.
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 31856 CABSAS
41.190.36.0/23 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 /14:797 /15:1394 /16:11889 /17:5825 /18:9701
/19:19419 /20:25787 /21:25917 /22:34003 /23:32837 /24:185085
/25:13 /26:17 /27:24 /28:159 /29:101 /30:53
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2240 3639 BellSouth.net Inc.
18566 1837 1874 Covad Communications Co.
6478 1670 1716 AT&T Services, Inc.
10620 1402 1512 Types of queries are: POCs, o
23456 1282 2609 32-bit ASN transition
11492 1104 1150 CABLE ONE, INC.
7011 1062 1161 Frontier Communications of Am
1785 1050 1793 PaeTec Communications, Inc.
4323 887 1976 tw telecom holdings, inc.
22773 853 1338 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:280 2:49 4:16 5:1 6:3 8:337
12:1977 13:1 14:452 15:15 16:3 17:8
20:10 23:11 24:1599 27:763 31:424 32:55
33:4 34:2 37:1 38:735 40:102 41:2514
42:6 44:3 46:937 47:3 49:198 50:435
52:13 54:2 55:3 56:2 57:28 58:797
59:470 60:385 61:1015 62:1047 63:1930 64:3908
65:2254 66:4127 67:1864 68:1085 69:2979 70:702
71:350 72:1848 74:2351 75:304 76:340 77:882
78:705 79:467 80:1083 81:833 82:498 83:466
84:669 85:1075 86:591 87:759 88:332 89:1531
90:203 91:3807 92:524 93:1047 94:1291 95:815
96:502 97:251 98:859 99:35 101:56 103:50
106:1 107:7 108:85 109:969 110:599 111:703
112:295 113:397 114:535 115:675 116:935 117:683
118:789 119:1131 120:310 121:647 122:1615 123:935
124:1264 125:1213 128:209 129:165 130:158 131:569
132:100 133:19 134:205 135:48 136:208 137:141
138:300 139:107 140:460 141:239 142:385 143:407
144:488 145:54 146:439 147:211 148:580 149:245
150:164 151:184 152:326 153:179 154:2 155:396
156:195 157:323 158:138 159:373 160:314 161:199
162:279 163:153 164:500 165:351 166:514 167:429
168:723 169:153 170:799 171:77 172:1 173:1561
174:554 175:355 176:130 177:146 178:995 180:847
181:18 182:445 183:212 184:293 185:1 186:1205
187:769 188:848 189:895 190:4851 192:5798 193:4911
194:3491 195:3003 196:1236 197:19 198:3535 199:3883
200:5503 201:1473 202:8082 203:8256 204:4107 205:2307
206:2604 207:2804 208:3950 209:3449 210:2645 211:1391
212:2020 213:1736 214:732 215:72 216:4916 217:1636
218:534 219:361 220:1197 221:475 222:308 223:150
End of report
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