Routing Table Report 08:00 +10GMT Tue 28 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 356106
Prefixes after maximum aggregation: 162144
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178687
Total ASes present in the Internet Routing Table: 36644
Prefixes per ASN: 9.72
Origin-only ASes present in the Internet Routing Table: 31611
Origin ASes announcing only one prefix: 15234
Transit ASes present in the Internet Routing Table: 5033
Transit-only ASes present in the Internet Routing Table: 117
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: 2240
Unregistered ASNs in the Routing Table: 551
Number of 32-bit ASNs allocated by the RIRs: 1500
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2732
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 131
Number of addresses announced to Internet: 2490211328
Equivalent to 148 /8s, 109 /16s and 156 /24s
Percentage of available address space announced: 67.2
Percentage of allocated address space announced: 67.2
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: 146781
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85476
Total APNIC prefixes after maximum aggregation: 28854
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 83184
Unique aggregates announced from the APNIC address blocks: 36289
APNIC Region origin ASes present in the Internet Routing Table: 4443
APNIC Prefixes per ASN: 18.72
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 676
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: 621125376
Equivalent to 37 /8s, 5 /16s and 159 /24s
Percentage of available APNIC address space announced: 78.8
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: 139940
Total ARIN prefixes after maximum aggregation: 71867
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 112242
Unique aggregates announced from the ARIN address blocks: 46536
ARIN Region origin ASes present in the Internet Routing Table: 14369
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5513
ARIN Region transit ASes present in the Internet Routing Table: 1456
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 24
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 802558464
Equivalent to 47 /8s, 214 /16s and 18 /24s
Percentage of available ARIN address space announced: 63.8
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: 86375
Total RIPE prefixes after maximum aggregation: 48903
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79778
Unique aggregates announced from the RIPE address blocks: 52586
RIPE Region origin ASes present in the Internet Routing Table: 15742
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7867
RIPE Region transit ASes present in the Internet Routing Table: 2469
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: 478055936
Equivalent to 28 /8s, 126 /16s and 142 /24s
Percentage of available RIPE address space announced: 77.0
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: 32500
Total LACNIC prefixes after maximum aggregation: 7452
LACNIC Deaggregation factor: 4.36
Prefixes being announced from the LACNIC address blocks: 31914
Unique aggregates announced from the LACNIC address blocks: 16909
LACNIC Region origin ASes present in the Internet Routing Table: 1458
LACNIC Prefixes per ASN: 21.89
LACNIC Region origin ASes announcing only one prefix: 447
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: 85596672
Equivalent to 5 /8s, 26 /16s and 26 /24s
Percentage of available LACNIC address space announced: 56.7
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: 8353
Total AfriNIC prefixes after maximum aggregation: 2008
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6483
Unique aggregates announced from the AfriNIC address blocks: 1981
AfriNIC Region origin ASes present in the Internet Routing Table: 465
AfriNIC Prefixes per ASN: 13.94
AfriNIC Region origin ASes announcing only one prefix: 143
AfriNIC Region transit ASes present in the Internet Routing Table: 99
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: 24300032
Equivalent to 1 /8s, 114 /16s and 202 /24s
Percentage of available AfriNIC address space announced: 36.2
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 623 Korea Telecom (KIX)
17974 1570 461 44 PT Telekomunikasi Indonesia
7545 1541 301 84 TPG Internet Pty Ltd
4755 1487 375 166 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1073 79 505 Sify Limited
9829 1052 888 54 National Internet Backbone
17488 956 185 103 Hathway IP Over Cable Interne
4808 951 2007 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 3626 3819 247 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1801 681 122 PaeTec Communications, Inc.
4323 1660 1097 399 tw telecom holdings, inc.
20115 1586 1531 635 Charter Communications
6478 1499 276 522 AT&T Services, Inc.
19262 1451 4806 371 Verizon Online LLC
7029 1406 1031 207 Windstream Communications Inc
7018 1376 7086 904 AT&T Services, Inc.
22773 1345 2897 87 Cox Communications 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 540 326 31 Goldenlines main autonomous s
34984 530 106 185 BILISIM TELEKOM
6830 514 1780 320 UPC Broadband
3292 469 2080 404 TDC Data Networks
20940 468 137 360 Akamai Technologies European
8866 445 134 26 Bulgarian Telecommunication C
29049 444 33 45 AzerSat LLC.
12479 438 593 7 France Telecom Espana SA
3320 417 8151 365 Deutsche Telekom AG
8551 405 355 38 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 1532 281 157 Types of queries are: POCs, o
8151 1254 2722 356 Uninet S.A. de C.V.
28573 1252 993 78 Types of queries are: POCs, o
7303 968 506 158 Telecom Argentina S.A.
6503 732 354 74 Axtel, S.A.B. de C.V.
14420 684 55 83 CORPORACION NACIONAL DE TELEC
22047 576 322 17 Types of queries are: POCs, o
3816 533 231 93 Types of queries are: POCs, o
7738 516 986 31 Telecomunicacoes da Bahia S.A
27947 499 54 52 Telconet S.A
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 794 147 35 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 524 74 8 Nile Online
36992 313 415 14 Etisalat MISR
3741 261 937 223 The Internet Solution
6713 241 215 13 Itissalat Al-MAGHRIB
33776 215 12 11 Starcomms Nigeria Limited
24835 211 78 10 RAYA Telecom - Egypt
29571 192 17 11 Ci Telecom Autonomous system
16637 149 441 87 MTN Network Solutions
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 3626 3819 247 BellSouth.net Inc.
23456 2732 678 1483 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1901 9492 623 Korea Telecom (KIX)
1785 1801 681 122 PaeTec Communications, Inc.
4323 1660 1097 399 tw telecom holdings, inc.
20115 1586 1531 635 Charter Communications
17974 1570 461 44 PT Telekomunikasi Indonesia
7545 1541 301 84 TPG Internet Pty Ltd
10620 1532 281 157 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 1801 1679 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1570 1526 PT Telekomunikasi Indonesia
7545 1541 1457 TPG Internet Pty Ltd
10620 1532 1375 Types of queries are: POCs, o
4755 1487 1321 TATA Communications formerly
4766 1901 1278 Korea Telecom (KIX)
4323 1660 1261 tw telecom holdings, inc.
22773 1345 1258 Cox Communications Inc.
23456 2732 1249 32-bit ASN transition
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 /8:23 /9:12 /10:28 /11:81 /12:231
/13:457 /14:799 /15:1395 /16:11896 /17:5839 /18:9678
/19:19498 /20:25832 /21:26042 /22:34309 /23:33100 /24:186377
/25:13 /26:18 /27:26 /28:161 /29:102 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2230 3626 BellSouth.net Inc.
18566 1868 1912 Covad Communications Co.
6478 1466 1499 AT&T Services, Inc.
10620 1427 1532 Types of queries are: POCs, o
23456 1341 2732 32-bit ASN transition
11492 1088 1134 CABLE ONE, INC.
7029 1086 1406 Windstream Communications Inc
7011 1056 1157 Frontier Communications of Am
1785 1051 1801 PaeTec Communications, Inc.
22773 860 1345 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:312 2:47 4:16 5:1 6:3 8:335
12:1977 13:1 14:456 15:15 16:3 17:8
20:10 23:12 24:1654 27:800 31:471 32:59
33:4 34:2 37:1 38:734 39:3 40:103
41:2558 42:5 44:3 46:951 47:3 49:197
50:413 52:13 54:2 55:2 56:2 57:30
58:823 59:462 60:384 61:1021 62:1040 63:1931
64:3922 65:2283 66:3868 67:1903 68:1074 69:3019
70:754 71:389 72:1888 74:2379 75:319 76:337
77:891 78:705 79:472 80:1091 81:837 82:499
83:460 84:671 85:1077 86:531 87:759 88:337
89:1529 90:209 91:3880 92:538 93:1049 94:1318
95:840 96:440 97:254 98:886 99:36 101:71
103:90 106:9 107:16 108:70 109:1010 110:605
111:702 112:297 113:398 114:542 115:661 116:943
117:667 118:818 119:1129 120:312 121:646 122:1613
123:952 124:1263 125:1226 128:209 129:166 130:162
131:568 132:103 133:21 134:206 135:48 136:213
137:133 138:300 139:113 140:459 141:239 142:387
143:401 144:479 145:54 146:446 147:215 148:591
149:246 150:157 151:190 152:330 153:180 154:3
155:399 156:192 157:322 158:138 159:386 160:313
161:201 162:307 163:155 164:506 165:352 166:534
167:431 168:734 169:156 170:838 171:78 172:1
173:1630 174:609 175:361 176:138 177:147 178:987
180:883 181:18 182:470 183:223 184:307 185:1
186:1262 187:723 188:876 189:929 190:4873 192:5834
193:4960 194:3485 195:3038 196:1224 197:41 198:3533
199:3920 200:5459 201:1503 202:8116 203:8334 204:4130
205:2322 206:2589 207:2737 208:3944 209:3446 210:2593
211:1450 212:2116 213:1734 214:763 215:70 216:4910
217:1635 218:537 219:358 220:1197 221:475 222:311
223:163
End of report
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