Routing Table Report 08:00 +10GMT Sat 11 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 354712
Prefixes after maximum aggregation: 160848
Deaggregation factor: 2.21
Unique aggregates announced to Internet: 178304
Total ASes present in the Internet Routing Table: 36534
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31549
Origin ASes announcing only one prefix: 15183
Transit ASes present in the Internet Routing Table: 4985
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: 2173
Unregistered ASNs in the Routing Table: 506
Number of 32-bit ASNs allocated by the RIRs: 1446
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2643
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 164
Number of addresses announced to Internet: 2486883584
Equivalent to 148 /8s, 58 /16s and 213 /24s
Percentage of available address space announced: 67.1
Percentage of allocated address space announced: 67.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.1
Total number of prefixes smaller than registry allocations: 146399
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85212
Total APNIC prefixes after maximum aggregation: 28791
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 82524
Unique aggregates announced from the APNIC address blocks: 36762
APNIC Region origin ASes present in the Internet Routing Table: 4425
APNIC Prefixes per ASN: 18.65
APNIC Region origin ASes announcing only one prefix: 1264
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: 618575360
Equivalent to 36 /8s, 222 /16s and 182 /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: 139577
Total ARIN prefixes after maximum aggregation: 71057
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 111830
Unique aggregates announced from the ARIN address blocks: 46084
ARIN Region origin ASes present in the Internet Routing Table: 14347
ARIN Prefixes per ASN: 7.79
ARIN Region origin ASes announcing only one prefix: 5490
ARIN Region transit ASes present in the Internet Routing Table: 1444
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: 801947904
Equivalent to 47 /8s, 204 /16s and 193 /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: 85915
Total RIPE prefixes after maximum aggregation: 48659
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79346
Unique aggregates announced from the RIPE address blocks: 52219
RIPE Region origin ASes present in the Internet Routing Table: 15692
RIPE Prefixes per ASN: 5.06
RIPE Region origin ASes announcing only one prefix: 7847
RIPE Region transit ASes present in the Internet Routing Table: 2453
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: 476819968
Equivalent to 28 /8s, 107 /16s and 178 /24s
Percentage of available RIPE address space announced: 76.8
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: 32414
Total LACNIC prefixes after maximum aggregation: 7405
LACNIC Deaggregation factor: 4.38
Prefixes being announced from the LACNIC address blocks: 31848
Unique aggregates announced from the LACNIC address blocks: 16984
LACNIC Region origin ASes present in the Internet Routing Table: 1448
LACNIC Prefixes per ASN: 21.99
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 246
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: 84777728
Equivalent to 5 /8s, 13 /16s and 155 /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: 8224
Total AfriNIC prefixes after maximum aggregation: 1973
AfriNIC Deaggregation factor: 4.17
Prefixes being announced from the AfriNIC address blocks: 6357
Unique aggregates announced from the AfriNIC address blocks: 1874
AfriNIC Region origin ASes present in the Internet Routing Table: 459
AfriNIC Prefixes per ASN: 13.85
AfriNIC Region origin ASes announcing only one prefix: 143
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: 24145152
Equivalent to 1 /8s, 112 /16s and 109 /24s
Percentage of available AfriNIC address space announced: 36.0
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 1904 9492 620 Korea Telecom (KIX)
17974 1562 441 38 PT Telekomunikasi Indonesia
7545 1537 301 85 TPG Internet Pty Ltd
4755 1469 374 164 TATA Communications formerly
24560 1152 336 187 Bharti Airtel Ltd., Telemedia
7552 1146 1064 7 Vietel Corporation
9583 1071 79 500 Sify Limited
9829 1037 876 63 National Internet Backbone
4808 960 2017 278 CNCGROUP IP network China169
17488 944 191 102 Hathway IP Over Cable Interne
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 3627 3822 253 BellSouth.net Inc.
4323 1961 1113 401 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
1785 1796 681 122 PaeTec Communications, Inc.
6478 1721 319 45 AT&T Services, Inc.
20115 1539 1541 633 Charter Communications
19262 1493 4936 308 Verizon Online LLC
7018 1378 7086 904 AT&T Services, Inc.
22773 1339 2897 87 Cox Communications Inc.
2386 1265 536 909 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 521 106 180 BILISIM TELEKOM
6830 512 1780 320 UPC Broadband
3292 464 2078 399 TDC Data Networks
20940 462 135 354 Akamai Technologies European
29049 451 33 48 AzerSat LLC.
8866 445 134 26 Bulgarian Telecommunication C
12479 436 593 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 1513 278 157 Types of queries are: POCs, o
28573 1301 992 80 Types of queries are: POCs, o
8151 1246 2708 357 Uninet S.A. de C.V.
7303 967 506 158 Telecom Argentina S.A.
6503 731 354 74 Axtel, S.A.B. de C.V.
14420 677 54 80 CORPORACION NACIONAL DE TELEC
22047 564 310 15 Types of queries are: POCs, o
3816 531 231 93 Types of queries are: POCs, o
13489 517 262 122 EPM Telecomunicaciones S.A. E
7738 516 986 31 Telecomunicacoes da Bahia 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
8452 795 445 11 TEDATA
24863 792 147 35 LINKdotNET AS number
15475 527 74 8 Nile Online
36992 307 415 18 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 184 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 3627 3822 253 BellSouth.net Inc.
23456 2643 645 1435 32-bit ASN transition
4323 1961 1113 401 tw telecom holdings, inc.
18566 1912 365 236 Covad Communications Co.
4766 1904 9492 620 Korea Telecom (KIX)
1785 1796 681 122 PaeTec Communications, Inc.
6478 1721 319 45 AT&T Services, Inc.
17974 1562 441 38 PT Telekomunikasi Indonesia
20115 1539 1541 633 Charter Communications
7545 1537 301 85 TPG Internet Pty Ltd
Complete listing at http://thyme.rand.apnic.net/london/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
18566 1912 1676 Covad Communications Co.
6478 1721 1676 AT&T Services, Inc.
1785 1796 1674 PaeTec Communications, Inc.
4323 1961 1560 tw telecom holdings, inc.
17974 1562 1524 PT Telekomunikasi Indonesia
7545 1537 1452 TPG Internet Pty Ltd
10620 1513 1356 Types of queries are: POCs, o
4755 1469 1305 TATA Communications formerly
4766 1904 1284 Korea Telecom (KIX)
22773 1339 1252 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.
31.131.192.0/19 42368 RIPE Network Coordination Cen
41.190.32.0/23 31856 CABSAS
41.190.34.0/23 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 /8:22 /9:12 /10:28 /11:80 /12:230
/13:462 /14:798 /15:1393 /16:11915 /17:5823 /18:9720
/19:19453 /20:25895 /21:25983 /22:34083 /23:32942 /24:185366
/25:13 /26:17 /27:25 /28:162 /29:107 /30:55
/31:0 /32:128
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2231 3627 BellSouth.net Inc.
18566 1869 1912 Covad Communications Co.
6478 1675 1721 AT&T Services, Inc.
10620 1403 1513 Types of queries are: POCs, o
23456 1317 2643 32-bit ASN transition
11492 1087 1133 CABLE ONE, INC.
7011 1059 1159 Frontier Communications of Am
1785 1050 1796 PaeTec Communications, Inc.
7029 940 1258 Alltel Information Services,
4323 872 1961 tw telecom holdings, inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:283 2:46 4:16 5:1 6:3 8:338
12:1974 13:1 14:452 15:15 16:3 17:8
20:10 23:11 24:1607 27:768 31:429 32:55
33:4 34:2 37:1 38:732 40:103 41:2519
42:2 44:3 46:955 47:3 49:187 50:405
52:13 54:2 55:4 56:2 57:31 58:797
59:471 60:385 61:1016 62:1053 63:1930 64:3912
65:2245 66:4127 67:1886 68:1079 69:2999 70:702
71:373 72:1847 74:2350 75:308 76:338 77:882
78:701 79:466 80:1105 81:835 82:497 83:460
84:667 85:1082 86:579 87:760 88:331 89:1527
90:204 91:3826 92:524 93:1038 94:1297 95:824
96:439 97:251 98:871 99:36 101:63 103:56
106:6 107:11 108:82 109:968 110:599 111:705
112:291 113:414 114:537 115:679 116:938 117:672
118:786 119:1136 120:310 121:646 122:1620 123:932
124:1267 125:1212 128:209 129:169 130:158 131:574
132:102 133:19 134:206 135:48 136:212 137:141
138:300 139:109 140:458 141:238 142:388 143:411
144:488 145:54 146:441 147:212 148:585 149:246
150:163 151:187 152:327 153:180 154:2 155:399
156:192 157:324 158:137 159:373 160:317 161:200
162:306 163:154 164:500 165:350 166:530 167:423
168:735 169:153 170:833 171:77 172:1 173:1604
174:584 175:357 176:134 177:151 178:1001 180:879
181:18 182:453 183:216 184:297 185:1 186:1201
187:752 188:848 189:913 190:4868 192:5801 193:4917
194:3493 195:3003 196:1230 197:20 198:3530 199:3893
200:5475 201:1475 202:8094 203:8278 204:4106 205:2310
206:2600 207:2754 208:3938 209:3445 210:2647 211:1391
212:2021 213:1725 214:740 215:68 216:4899 217:1639
218:533 219:360 220:1198 221:474 222:309 223:154
End of report
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