Routing Table Report 08:00 +10GMT Mon 06 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 353903
Prefixes after maximum aggregation: 160546
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178145
Total ASes present in the Internet Routing Table: 36487
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31513
Origin ASes announcing only one prefix: 15165
Transit ASes present in the Internet Routing Table: 4974
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: 2138
Unregistered ASNs in the Routing Table: 486
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: 2607
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 163
Number of addresses announced to Internet: 2467596800
Equivalent to 147 /8s, 20 /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: 146044
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84946
Total APNIC prefixes after maximum aggregation: 28768
APNIC Deaggregation factor: 2.95
Prefixes being announced from the APNIC address blocks: 82239
Unique aggregates announced from the APNIC address blocks: 36674
APNIC Region origin ASes present in the Internet Routing Table: 4418
APNIC Prefixes per ASN: 18.61
APNIC Region origin ASes announcing only one prefix: 1260
APNIC Region transit ASes present in the Internet Routing Table: 669
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: 618193408
Equivalent to 36 /8s, 216 /16s and 226 /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: 139305
Total ARIN prefixes after maximum aggregation: 70985
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111721
Unique aggregates announced from the ARIN address blocks: 46220
ARIN Region origin ASes present in the Internet Routing Table: 14342
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5493
ARIN Region transit ASes present in the Internet Routing Table: 1439
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: 801992704
Equivalent to 47 /8s, 205 /16s and 112 /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: 85667
Total RIPE prefixes after maximum aggregation: 48512
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79096
Unique aggregates announced from the RIPE address blocks: 52083
RIPE Region origin ASes present in the Internet Routing Table: 15656
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: 2441
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: 475547904
Equivalent to 28 /8s, 88 /16s and 73 /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: 32443
Total LACNIC prefixes after maximum aggregation: 7395
LACNIC Deaggregation factor: 4.39
Prefixes being announced from the LACNIC address blocks: 31897
Unique aggregates announced from the LACNIC address blocks: 16942
LACNIC Region origin ASes present in the Internet Routing Table: 1449
LACNIC Prefixes per ASN: 22.01
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 252
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: 84661248
Equivalent to 5 /8s, 11 /16s and 212 /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: 8220
Total AfriNIC prefixes after maximum aggregation: 1968
AfriNIC Deaggregation factor: 4.18
Prefixes being announced from the AfriNIC address blocks: 6355
Unique aggregates announced from the AfriNIC address blocks: 1920
AfriNIC Region origin ASes present in the Internet Routing Table: 456
AfriNIC Prefixes per ASN: 13.94
AfriNIC Region origin ASes announcing only one prefix: 139
AfriNIC Region transit ASes present in the Internet Routing Table: 104
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: 23580672
Equivalent to 1 /8s, 103 /16s and 208 /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)
7545 1536 301 85 TPG Internet Pty Ltd
17974 1536 441 38 PT Telekomunikasi Indonesia
4755 1468 374 163 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1141 1064 7 Vietel Corporation
9583 1082 80 510 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 3640 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 1492 4936 307 Verizon Online LLC
7018 1375 7101 905 AT&T Services, Inc.
22773 1337 2897 88 Cox Communications Inc.
2386 1270 536 912 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
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
20940 435 122 339 Akamai Technologies European
12479 430 593 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 1243 2707 355 Uninet S.A. de C.V.
7303 932 503 139 Telecom Argentina S.A.
6503 726 354 74 Axtel, S.A.B. de C.V.
14420 675 54 89 CORPORACION NACIONAL DE TELEC
22047 565 310 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
8452 796 445 11 TEDATA
24863 790 147 35 LINKdotNET AS number
15475 541 90 8 Nile Online
36992 292 403 17 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 211 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 3640 3822 257 BellSouth.net Inc.
23456 2607 644 1412 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.
7545 1536 301 85 TPG Internet Pty Ltd
17974 1536 441 38 PT Telekomunikasi Indonesia
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 1536 1498 PT Telekomunikasi Indonesia
7545 1536 1451 TPG Internet Pty Ltd
10620 1512 1355 Types of queries are: POCs, o
4755 1468 1305 TATA Communications formerly
4766 1901 1283 Korea Telecom (KIX)
22773 1337 1249 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 /15:1395 /16:11871 /17:5825 /18:9694
/19:19424 /20:25774 /21:25923 /22:34001 /23:32837 /24:185036
/25:13 /26:17 /27:25 /28:161 /29:98 /30:54
/31:0 /32:127
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2241 3640 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 2607 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 852 1337 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:279 2:47 4:16 5:1 6:3 8:338
12:1979 13:1 14:454 15:15 16:3 17:8
20:10 23:11 24:1608 27:764 31:419 32:55
33:4 34:2 37:1 38:734 40:102 41:2527
42:6 44:3 46:934 47:3 49:198 50:435
52:13 54:2 55:3 56:2 57:28 58:797
59:470 60:385 61:1014 62:1048 63:1930 64:3919
65:2285 66:4135 67:1869 68:1084 69:2975 70:701
71:352 72:1883 73:1 74:2352 75:305 76:340
77:873 78:700 79:469 80:1090 81:834 82:497
83:447 84:666 85:1071 86:590 87:761 88:332
89:1529 90:203 91:3806 92:523 93:1048 94:1291
95:819 96:501 97:250 98:858 99:35 101:54
103:50 106:1 107:7 108:85 109:952 110:598
111:702 112:295 113:397 114:535 115:674 116:934
117:689 118:789 119:1122 120:310 121:648 122:1620
123:935 124:1260 125:1210 128:209 129:165 130:158
131:569 132:100 133:19 134:205 135:48 136:208
137:141 138:299 139:107 140:459 141:239 142:387
143:399 144:486 145:54 146:434 147:210 148:580
149:243 150:163 151:184 152:326 153:179 154:2
155:397 156:195 157:323 158:138 159:373 160:315
161:199 162:280 163:153 164:503 165:351 166:515
167:426 168:714 169:153 170:797 171:77 172:1
173:1561 174:552 175:356 176:130 177:146 178:990
180:846 181:18 182:447 183:212 184:294 185:1
186:1218 187:774 188:846 189:894 190:4843 192:5794
193:4903 194:3492 195:3004 196:1230 197:19 198:3522
199:3880 200:5512 201:1476 202:8043 203:8254 204:4105
205:2296 206:2600 207:2803 208:3966 209:3449 210:2631
211:1391 212:2024 213:1738 214:730 215:72 216:4921
217:1634 218:535 219:361 220:1197 221:474 222:308
223:148
End of report
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