Routing Table Report 08:00 +10GMT Fri 03 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 353750
Prefixes after maximum aggregation: 160365
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178069
Total ASes present in the Internet Routing Table: 36470
Prefixes per ASN: 9.70
Origin-only ASes present in the Internet Routing Table: 31511
Origin ASes announcing only one prefix: 15160
Transit ASes present in the Internet Routing Table: 4959
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: 2118
Unregistered ASNs in the Routing Table: 477
Number of 32-bit ASNs allocated by the RIRs: 1419
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2587
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 167
Number of addresses announced to Internet: 2466971392
Equivalent to 147 /8s, 10 /16s and 255 /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: 146007
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 84878
Total APNIC prefixes after maximum aggregation: 28686
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82176
Unique aggregates announced from the APNIC address blocks: 36631
APNIC Region origin ASes present in the Internet Routing Table: 4420
APNIC Prefixes per ASN: 18.59
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 668
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: 618041344
Equivalent to 36 /8s, 214 /16s and 144 /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: 139367
Total ARIN prefixes after maximum aggregation: 70932
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111803
Unique aggregates announced from the ARIN address blocks: 46220
ARIN Region origin ASes present in the Internet Routing Table: 14324
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5475
ARIN Region transit ASes present in the Internet Routing Table: 1435
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: 801961728
Equivalent to 47 /8s, 204 /16s and 247 /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: 85527
Total RIPE prefixes after maximum aggregation: 48485
RIPE Deaggregation factor: 1.76
Prefixes being announced from the RIPE address blocks: 78934
Unique aggregates announced from the RIPE address blocks: 52050
RIPE Region origin ASes present in the Internet Routing Table: 15655
RIPE Prefixes per ASN: 5.04
RIPE Region origin ASes announcing only one prefix: 7840
RIPE Region transit ASes present in the Internet Routing Table: 2440
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: 475179264
Equivalent to 28 /8s, 82 /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: 32437
Total LACNIC prefixes after maximum aggregation: 7414
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31881
Unique aggregates announced from the LACNIC address blocks: 16938
LACNIC Region origin ASes present in the Internet Routing Table: 1448
LACNIC Prefixes per ASN: 22.02
LACNIC Region origin ASes announcing only one prefix: 435
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: 84577024
Equivalent to 5 /8s, 10 /16s and 139 /24s
Percentage of available LACNIC address space announced: 56.0
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: 8246
Total AfriNIC prefixes after maximum aggregation: 1956
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 6353
Unique aggregates announced from the AfriNIC address blocks: 1904
AfriNIC Region origin ASes present in the Internet Routing Table: 456
AfriNIC Prefixes per ASN: 13.93
AfriNIC Region origin ASes announcing only one prefix: 144
AfriNIC Region transit ASes present in the Internet Routing Table: 102
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: 23524352
Equivalent to 1 /8s, 102 /16s and 244 /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 86 TPG Internet Pty Ltd
17974 1535 441 38 PT Telekomunikasi Indonesia
4755 1471 635 167 TATA Communications formerly
24560 1155 337 187 Bharti Airtel Ltd., Telemedia
7552 1138 1064 7 Vietel Corporation
9583 1079 80 510 Sify Limited
9829 1043 879 55 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 3643 3822 257 BellSouth.net Inc.
4323 1972 1097 401 tw telecom holdings, inc.
18566 1874 355 268 Covad Communications Co.
1785 1791 681 122 PaeTec Communications, Inc.
6478 1714 318 43 AT&T Services, Inc.
20115 1535 1540 633 Charter Communications
19262 1492 4936 307 Verizon Online LLC
7018 1380 7102 904 AT&T Services, Inc.
22773 1337 2897 88 Cox Communications Inc.
11492 1271 237 59 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
6830 516 1780 320 UPC Broadband
34984 516 106 180 BILISIM TELEKOM
3292 461 2078 396 TDC Data Networks
20940 457 134 349 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 444 133 25 Bulgarian Telecommunication C
12479 429 593 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 1298 992 86 Types of queries are: POCs, o
8151 1242 2701 354 Uninet S.A. de C.V.
7303 935 503 140 Telecom Argentina S.A.
6503 725 354 74 Axtel, S.A.B. de C.V.
14420 674 54 88 CORPORACION NACIONAL DE TELEC
22047 565 310 15 Types of queries are: POCs, o
3816 526 229 96 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
13489 515 262 124 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 831 445 11 TEDATA
24863 789 147 35 LINKdotNET AS number
15475 545 90 8 Nile Online
36992 295 399 14 Etisalat MISR
3741 265 937 226 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 217 12 11 Starcomms Nigeria Limited
24835 212 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 3643 3822 257 BellSouth.net Inc.
23456 2587 642 1398 32-bit ASN transition
4323 1972 1097 401 tw telecom holdings, inc.
4766 1901 9492 618 Korea Telecom (KIX)
18566 1874 355 268 Covad Communications Co.
1785 1791 681 122 PaeTec Communications, Inc.
6478 1714 318 43 AT&T Services, Inc.
7545 1536 301 86 TPG Internet Pty Ltd
17974 1535 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
6478 1714 1671 AT&T Services, Inc.
1785 1791 1669 PaeTec Communications, Inc.
18566 1874 1606 Covad Communications Co.
4323 1972 1571 tw telecom holdings, inc.
17974 1535 1497 PT Telekomunikasi Indonesia
7545 1536 1450 TPG Internet Pty Ltd
10620 1512 1355 Types of queries are: POCs, o
4755 1471 1304 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.
31.131.64.0/20 43936 Evpanet (PE Zinstein Hariton
31.131.96.0/19 41871 LLC "Radiotechichna Laborator
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 /14:796 /15:1394 /16:11875 /17:5824 /18:9687
/19:19412 /20:25757 /21:25895 /22:33978 /23:32837 /24:184979
/25:13 /26:17 /27:24 /28:156 /29:98 /30:54
/31:0 /32:123
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2243 3643 BellSouth.net Inc.
18566 1837 1874 Covad Communications Co.
6478 1668 1714 AT&T Services, Inc.
10620 1402 1512 Types of queries are: POCs, o
23456 1268 2587 32-bit ASN transition
11492 1225 1271 CABLE ONE, INC.
7011 1061 1160 Frontier Communications of Am
1785 1050 1791 PaeTec Communications, Inc.
4323 884 1972 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 2:48 4:16 5:1 6:3 8:337
12:1978 13:1 14:456 15:15 16:3 17:8
20:10 23:6 24:1645 27:770 31:417 32:55
33:4 34:2 37:1 38:735 40:102 41:2537
42:6 44:3 46:929 47:3 49:200 50:431
52:13 54:2 55:7 56:2 57:28 58:795
59:475 60:385 61:1026 62:1046 63:1929 64:3916
65:2290 66:4139 67:1870 68:1085 69:2986 70:703
71:351 72:1895 73:1 74:2352 75:304 76:340
77:869 78:699 79:471 80:1077 81:837 82:501
83:443 84:677 85:1072 86:591 87:762 88:332
89:1533 90:203 91:3804 92:524 93:1049 94:1271
95:807 96:501 97:250 98:858 99:35 101:54
103:41 106:1 107:7 108:85 109:954 110:599
111:701 112:293 113:393 114:533 115:672 116:937
117:690 118:790 119:1144 120:310 121:649 122:1589
123:957 124:1263 125:1212 128:209 129:167 130:158
131:568 132:99 133:19 134:205 135:48 136:210
137:141 138:300 139:107 140:459 141:239 142:386
143:399 144:483 145:54 146:442 147:210 148:580
149:243 150:163 151:185 152:326 153:179 154:2
155:397 156:192 157:323 158:138 159:371 160:316
161:199 162:280 163:154 164:500 165:348 166:517
167:428 168:723 169:153 170:798 171:77 172:1
173:1559 174:550 175:349 176:130 177:147 178:948
180:851 181:17 182:444 183:212 184:293 185:1
186:1215 187:773 188:848 189:895 190:4838 192:5794
193:4897 194:3492 195:2997 196:1236 197:19 198:3519
199:3877 200:5519 201:1481 202:8023 203:8248 204:4100
205:2284 206:2601 207:2806 208:3960 209:3452 210:2629
211:1388 212:2002 213:1738 214:726 215:71 216:4908
217:1639 218:535 219:362 220:1197 221:475 222:308
223:149
End of report
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