Routing Table Report 08:00 +10GMT Mon 27 Jun, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 355968
Prefixes after maximum aggregation: 162147
Deaggregation factor: 2.20
Unique aggregates announced to Internet: 178636
Total ASes present in the Internet Routing Table: 36647
Prefixes per ASN: 9.71
Origin-only ASes present in the Internet Routing Table: 31614
Origin ASes announcing only one prefix: 15236
Transit ASes present in the Internet Routing Table: 5033
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: 2232
Unregistered ASNs in the Routing Table: 546
Number of 32-bit ASNs allocated by the RIRs: 1499
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 2710
Special use prefixes present in the Routing Table: 6
Prefixes being announced from unallocated address space: 133
Number of addresses announced to Internet: 2492798976
Equivalent to 148 /8s, 149 /16s and 24 /24s
Percentage of available address space announced: 67.3
Percentage of allocated address space announced: 67.3
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: 146679
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 85393
Total APNIC prefixes after maximum aggregation: 28882
APNIC Deaggregation factor: 2.96
Prefixes being announced from the APNIC address blocks: 83094
Unique aggregates announced from the APNIC address blocks: 36296
APNIC Region origin ASes present in the Internet Routing Table: 4445
APNIC Prefixes per ASN: 18.69
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 677
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: 621177088
Equivalent to 37 /8s, 6 /16s and 105 /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: 139930
Total ARIN prefixes after maximum aggregation: 71862
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 112212
Unique aggregates announced from the ARIN address blocks: 46526
ARIN Region origin ASes present in the Internet Routing Table: 14364
ARIN Prefixes per ASN: 7.81
ARIN Region origin ASes announcing only one prefix: 5506
ARIN Region transit ASes present in the Internet Routing Table: 1455
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: 802577920
Equivalent to 47 /8s, 214 /16s and 94 /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: 86433
Total RIPE prefixes after maximum aggregation: 48904
RIPE Deaggregation factor: 1.77
Prefixes being announced from the RIPE address blocks: 79799
Unique aggregates announced from the RIPE address blocks: 52591
RIPE Region origin ASes present in the Internet Routing Table: 15750
RIPE Prefixes per ASN: 5.07
RIPE Region origin ASes announcing only one prefix: 7875
RIPE Region transit ASes present in the Internet Routing Table: 2470
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: 478399232
Equivalent to 28 /8s, 131 /16s and 203 /24s
Percentage of available RIPE address space announced: 77.1
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: 32408
Total LACNIC prefixes after maximum aggregation: 7461
LACNIC Deaggregation factor: 4.34
Prefixes being announced from the LACNIC address blocks: 31827
Unique aggregates announced from the LACNIC address blocks: 16815
LACNIC Region origin ASes present in the Internet Routing Table: 1459
LACNIC Prefixes per ASN: 21.81
LACNIC Region origin ASes announcing only one prefix: 447
LACNIC Region transit ASes present in the Internet Routing Table: 251
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: 85526016
Equivalent to 5 /8s, 25 /16s and 6 /24s
Percentage of available LACNIC address space announced: 56.6
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: 8361
Total AfriNIC prefixes after maximum aggregation: 2010
AfriNIC Deaggregation factor: 4.16
Prefixes being announced from the AfriNIC address blocks: 6491
Unique aggregates announced from the AfriNIC address blocks: 1979
AfriNIC Region origin ASes present in the Internet Routing Table: 463
AfriNIC Prefixes per ASN: 14.02
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: 3.4
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: 24282624
Equivalent to 1 /8s, 114 /16s and 134 /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 1575 460 43 PT Telekomunikasi Indonesia
7545 1541 301 84 TPG Internet Pty Ltd
4755 1475 374 166 TATA Communications formerly
24560 1153 336 187 Bharti Airtel Ltd., Telemedia
9583 1079 80 510 Sify Limited
9829 1049 887 56 National Internet Backbone
17488 955 185 103 Hathway IP Over Cable Interne
4808 952 2008 279 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 250 BellSouth.net Inc.
18566 1912 365 240 Covad Communications Co.
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
20115 1586 1531 635 Charter Communications
6478 1499 276 522 AT&T Services, Inc.
19262 1450 4805 371 Verizon Online LLC
7029 1406 1031 207 Windstream Communications Inc
7018 1376 7086 904 AT&T Services, Inc.
22773 1346 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 530 107 183 BILISIM TELEKOM
6830 514 1780 320 UPC Broadband
3292 471 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 419 8151 366 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 1253 2720 358 Uninet S.A. de C.V.
28573 1252 993 78 Types of queries are: POCs, o
7303 969 506 159 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
11172 495 100 85 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 794 147 35 LINKdotNET AS number
8452 791 445 11 TEDATA
15475 524 74 8 Nile Online
36992 316 415 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 250 BellSouth.net Inc.
23456 2710 675 1467 32-bit ASN transition
18566 1912 365 240 Covad Communications Co.
4766 1901 9492 623 Korea Telecom (KIX)
1785 1800 681 122 PaeTec Communications, Inc.
4323 1661 1097 399 tw telecom holdings, inc.
20115 1586 1531 635 Charter Communications
17974 1575 460 43 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 1800 1678 PaeTec Communications, Inc.
18566 1912 1672 Covad Communications Co.
17974 1575 1532 PT Telekomunikasi Indonesia
7545 1541 1457 TPG Internet Pty Ltd
10620 1532 1375 Types of queries are: POCs, o
4755 1475 1309 TATA Communications formerly
4766 1901 1278 Korea Telecom (KIX)
4323 1661 1262 tw telecom holdings, inc.
22773 1346 1259 Cox Communications Inc.
23456 2710 1243 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
/13:461 /14:799 /15:1396 /16:11933 /17:5836 /18:9678
/19:19515 /20:25836 /21:26016 /22:34253 /23:33032 /24:186326
/25:13 /26:18 /27:26 /28:162 /29:104 /30:59
/31:0 /32:130
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
6389 2229 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 1330 2710 32-bit ASN transition
11492 1088 1134 CABLE ONE, INC.
7029 1086 1406 Windstream Communications Inc
7011 1056 1157 Frontier Communications of Am
1785 1050 1800 PaeTec Communications, Inc.
22773 861 1346 Cox Communications Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:296 2:44 4:16 5:1 6:3 8:336
12:1977 13:1 14:454 15:15 16:3 17:8
20:10 23:12 24:1654 27:800 31:482 32:59
33:4 34:2 37:1 38:733 39:3 40:103
41:2550 42:2 44:3 46:985 47:3 49:196
50:413 52:13 54:2 55:2 56:2 57:31
58:816 59:472 60:384 61:1020 62:1041 63:1931
64:3920 65:2281 66:3868 67:1900 68:1085 69:3019
70:754 71:388 72:1890 74:2377 75:319 76:336
77:872 78:709 79:474 80:1092 81:821 82:500
83:456 84:671 85:1078 86:551 87:759 88:334
89:1527 90:209 91:3880 92:536 93:1048 94:1321
95:836 96:440 97:254 98:883 99:36 101:72
103:89 106:10 107:16 108:70 109:981 110:604
111:703 112:296 113:399 114:539 115:660 116:942
117:662 118:816 119:1132 120:311 121:646 122:1607
123:950 124:1268 125:1225 128:209 129:166 130:162
131:568 132:103 133:21 134:206 135:48 136:212
137:135 138:300 139:112 140:458 141:239 142:387
143:402 144:481 145:54 146:443 147:213 148:590
149:247 150:156 151:190 152:330 153:180 154:3
155:396 156:192 157:321 158:138 159:385 160:313
161:201 162:307 163:155 164:506 165:352 166:534
167:433 168:734 169:155 170:841 171:78 172:1
173:1630 174:609 175:358 176:139 177:151 178:1002
180:885 181:19 182:471 183:223 184:307 185:1
186:1219 187:732 188:876 189:931 190:4871 192:5834
193:4974 194:3484 195:3040 196:1227 197:41 198:3535
199:3919 200:5456 201:1502 202:8123 203:8334 204:4129
205:2327 206:2594 207:2737 208:3939 209:3443 210:2611
211:1452 212:2116 213:1735 214:751 215:70 216:4903
217:1632 218:537 219:359 220:1196 221:474 222:311
223:155
End of report
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