Routing Table Report 08:00 +10GMT Wed 19 Oct, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 372099
Prefixes after maximum aggregation: 167676
Deaggregation factor: 2.22
Unique aggregates announced to Internet: 185158
Total ASes present in the Internet Routing Table: 37405
Prefixes per ASN: 9.95
Origin-only ASes present in the Internet Routing Table: 32277
Origin ASes announcing only one prefix: 15493
Transit ASes present in the Internet Routing Table: 5128
Transit-only ASes present in the Internet Routing Table: 125
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 27
Max AS path prepend of ASN (51310) 25
Prefixes from unregistered ASNs in the Routing Table: 2211
Unregistered ASNs in the Routing Table: 876
Number of 32-bit ASNs allocated by the RIRs: 1866
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 3469
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 90
Number of addresses announced to Internet: 2501928448
Equivalent to 149 /8s, 32 /16s and 102 /24s
Percentage of available address space announced: 67.5
Percentage of allocated address space announced: 67.5
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.5
Total number of prefixes smaller than registry allocations: 155090
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 89482
Total APNIC prefixes after maximum aggregation: 29613
APNIC Deaggregation factor: 3.02
Prefixes being announced from the APNIC address blocks: 86894
Unique aggregates announced from the APNIC address blocks: 37997
APNIC Region origin ASes present in the Internet Routing Table: 4532
APNIC Prefixes per ASN: 19.17
APNIC Region origin ASes announcing only one prefix: 1272
APNIC Region transit ASes present in the Internet Routing Table: 688
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: 628349952
Equivalent to 37 /8s, 115 /16s and 220 /24s
Percentage of available APNIC address space announced: 79.7
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 131072-132095, 132096-133119
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: 144443
Total ARIN prefixes after maximum aggregation: 73901
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 116694
Unique aggregates announced from the ARIN address blocks: 47957
ARIN Region origin ASes present in the Internet Routing Table: 14663
ARIN Prefixes per ASN: 7.96
ARIN Region origin ASes announcing only one prefix: 5655
ARIN Region transit ASes present in the Internet Routing Table: 1492
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: 804475648
Equivalent to 47 /8s, 243 /16s and 83 /24s
Percentage of available ARIN address space announced: 63.9
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: 91019
Total RIPE prefixes after maximum aggregation: 50560
RIPE Deaggregation factor: 1.80
Prefixes being announced from the RIPE address blocks: 83696
Unique aggregates announced from the RIPE address blocks: 54102
RIPE Region origin ASes present in the Internet Routing Table: 16027
RIPE Prefixes per ASN: 5.22
RIPE Region origin ASes announcing only one prefix: 7966
RIPE Region transit ASes present in the Internet Routing Table: 2511
Average RIPE Region AS path length visible: 3.4
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: 490768640
Equivalent to 29 /8s, 64 /16s and 137 /24s
Percentage of available RIPE address space announced: 79.1
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: 34455
Total LACNIC prefixes after maximum aggregation: 7778
LACNIC Deaggregation factor: 4.43
Prefixes being announced from the LACNIC address blocks: 33999
Unique aggregates announced from the LACNIC address blocks: 17892
LACNIC Region origin ASes present in the Internet Routing Table: 1525
LACNIC Prefixes per ASN: 22.29
LACNIC Region origin ASes announcing only one prefix: 448
LACNIC Region transit ASes present in the Internet Routing Table: 264
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: 91066368
Equivalent to 5 /8s, 109 /16s and 144 /24s
Percentage of available LACNIC address space announced: 60.3
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: 8537
Total AfriNIC prefixes after maximum aggregation: 2013
AfriNIC Deaggregation factor: 4.24
Prefixes being announced from the AfriNIC address blocks: 6604
Unique aggregates announced from the AfriNIC address blocks: 1970
AfriNIC Region origin ASes present in the Internet Routing Table: 487
AfriNIC Prefixes per ASN: 13.56
AfriNIC Region origin ASes announcing only one prefix: 152
AfriNIC Region transit ASes present in the Internet Routing Table: 107
Average AfriNIC Region AS path length visible: 3.3
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: 27836416
Equivalent to 1 /8s, 168 /16s and 192 /24s
Percentage of available AfriNIC address space announced: 41.5
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 1937 11087 656 Korea Telecom (KIX)
17974 1706 512 39 PT Telekomunikasi Indonesia
7545 1606 303 85 TPG Internet Pty Ltd
4755 1532 379 172 TATA Communications formerly
9829 1165 989 28 National Internet Backbone
9583 1088 80 503 Sify Limited
7552 982 1062 11 Vietel Corporation
24560 969 340 223 Bharti Airtel Ltd., Telemedia
4808 966 2007 274 CNCGROUP IP network China169
18101 951 165 146 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 3548 3815 222 BellSouth.net Inc.
7029 2286 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
1785 1840 680 121 PaeTec Communications, Inc.
4323 1630 1099 393 tw telecom holdings, inc.
20115 1591 1541 635 Charter Communications
22773 1461 2907 100 Cox Communications Inc.
19262 1395 4728 400 Verizon Online LLC
30036 1391 251 672 Mediacom Communications Corp
7018 1350 7112 858 AT&T Services, 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
8402 1388 352 13 Corbina telecom
6830 652 1927 415 UPC Broadband
34984 583 108 179 BILISIM TELEKOM
20940 547 182 421 Akamai Technologies European
9116 540 326 31 Goldenlines main autonomous s
3320 502 8169 384 Deutsche Telekom AG
3292 484 2080 410 TDC Data Networks
12479 480 593 7 France Telecom Espana SA
8866 459 133 26 Bulgarian Telecommunication C
29049 421 31 57 AzerSat LLC.
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 1681 310 155 Types of queries are: POCs, o
28573 1387 1032 69 Types of queries are: POCs, o
8151 1286 2860 346 Uninet S.A. de C.V.
7303 1164 683 175 Telecom Argentina S.A.
22047 580 322 17 Types of queries are: POCs, o
27947 569 72 79 Telconet S.A
6503 560 450 70 Axtel, S.A.B. de C.V.
7738 552 1050 31 Telecomunicacoes da Bahia S.A
3816 540 233 96 Types of queries are: POCs, o
11172 521 101 96 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 798 146 33 LINKdotNET AS number
8452 656 446 12 TEDATA
15475 454 74 8 Nile Online
36992 300 415 21 Etisalat MISR
3741 279 938 230 The Internet Solution
6713 242 519 14 Itissalat Al-MAGHRIB
15706 240 32 6 Sudatel Internet Exchange Aut
29571 217 17 13 Ci Telecom Autonomous system
33776 207 13 14 Starcomms Nigeria Limited
12258 197 28 58 Vodacom Internet Company
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 3548 3815 222 BellSouth.net Inc.
7029 2286 1042 210 Windstream Communications Inc
18566 2097 382 176 Covad Communications Co.
4766 1937 11087 656 Korea Telecom (KIX)
1785 1840 680 121 PaeTec Communications, Inc.
17974 1706 512 39 PT Telekomunikasi Indonesia
10620 1681 310 155 Types of queries are: POCs, o
4323 1630 1099 393 tw telecom holdings, inc.
7545 1606 303 85 TPG Internet Pty Ltd
20115 1591 1541 635 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
7029 2286 2076 Windstream Communications Inc
18566 2097 1921 Covad Communications Co.
1785 1840 1719 PaeTec Communications, Inc.
17974 1706 1667 PT Telekomunikasi Indonesia
10620 1681 1526 Types of queries are: POCs, o
7545 1606 1521 TPG Internet Pty Ltd
8402 1388 1375 Corbina telecom
22773 1461 1361 Cox Communications Inc.
4755 1532 1360 TATA Communications formerly
28573 1387 1318 Types of queries are: POCs, o
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.
25639 UNALLOCATED 12.41.169.0/24 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 0 *
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
41.223.92.0/22 36936 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
62.61.221.0/24 24974 Tachyon Europe BV
64.21.192.0/20 11610 Internet Nebraska Corporation
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 /8:20 /9:12 /10:27 /11:81 /12:236
/13:464 /14:806 /15:1420 /16:11958 /17:6019 /18:9993
/19:20055 /20:27268 /21:27273 /22:36634 /23:34758 /24:194551
/25:12 /26:20 /27:22 /28:154 /29:125 /30:62
/31:0 /32:129
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2186 3548 BellSouth.net Inc.
18566 2047 2097 Covad Communications Co.
7029 1944 2286 Windstream Communications Inc
10620 1576 1681 Types of queries are: POCs, o
8402 1364 1388 Corbina telecom
30036 1353 1391 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1057 1840 PaeTec Communications, Inc.
7011 1048 1166 Frontier Communications of Am
22773 949 1461 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:406 2:452 4:15 5:1 6:3 8:355
12:1954 13:1 14:529 15:11 16:3 17:7
20:9 23:58 24:1671 27:960 31:599 32:60
33:4 34:2 36:4 38:749 40:109 41:2668
42:52 44:3 46:998 47:3 49:293 50:438
52:13 55:4 56:2 57:36 58:836 59:487
60:360 61:1027 62:1097 63:1922 64:4058 65:2304
66:4271 67:1968 68:1148 69:3224 70:886 71:377
72:1863 74:2582 75:386 76:345 77:883 78:847
79:480 80:1144 81:825 82:506 83:528 84:623
85:1115 86:410 87:894 88:353 89:1584 90:269
91:4209 92:528 93:1510 94:1297 95:1037 96:432
97:282 98:910 99:37 101:92 103:366 106:70
107:71 108:68 109:1050 110:642 111:785 112:323
113:463 114:598 115:672 116:869 117:687 118:858
119:1199 120:337 121:680 122:1546 123:1019 124:1302
125:1327 128:209 129:174 130:159 131:590 132:137
133:21 134:210 135:54 136:211 137:137 138:289
139:117 140:465 141:296 142:369 143:432 144:492
145:63 146:464 147:221 148:620 149:265 150:159
151:192 152:446 153:178 154:6 155:385 156:203
157:329 158:153 159:407 160:323 161:204 162:336
163:163 164:489 165:365 166:536 167:435 168:733
169:142 170:873 171:85 172:4 173:1703 174:680
175:416 176:270 177:322 178:1052 180:1079 181:36
182:625 183:210 184:374 185:1 186:1245 187:685
188:925 189:873 190:5094 192:5866 193:5032 194:3555
195:3100 196:1257 197:170 198:3576 199:4128 200:5409
201:1657 202:8272 203:8365 204:4220 205:2349 206:2586
207:2758 208:4053 209:3566 210:2616 211:1449 212:2083
213:1769 214:793 215:91 216:4971 217:1607 218:555
219:332 220:1202 221:499 222:320 223:274
End of report