Routing Table Report 08:00 +10GMT Sat 17 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 380970
Prefixes after maximum aggregation: 166009
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 189023
Total ASes present in the Internet Routing Table: 37705
Prefixes per ASN: 10.10
Origin-only ASes present in the Internet Routing Table: 32477
Origin ASes announcing only one prefix: 15531
Transit ASes present in the Internet Routing Table: 5228
Transit-only ASes present in the Internet Routing Table: 127
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 2655
Unregistered ASNs in the Routing Table: 1065
Number of 32-bit ASNs allocated by the RIRs: 2095
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4192
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 92
Number of addresses announced to Internet: 2519880192
Equivalent to 150 /8s, 50 /16s and 82 /24s
Percentage of available address space announced: 68.0
Percentage of allocated address space announced: 68.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.7
Total number of prefixes smaller than registry allocations: 159366
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90716
Total APNIC prefixes after maximum aggregation: 29988
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88118
Unique aggregates announced from the APNIC address blocks: 38547
APNIC Region origin ASes present in the Internet Routing Table: 4556
APNIC Prefixes per ASN: 19.34
APNIC Region origin ASes announcing only one prefix: 1264
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 18
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 631612160
Equivalent to 37 /8s, 165 /16s and 163 /24s
Percentage of available APNIC address space announced: 80.1
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: 145332
Total ARIN prefixes after maximum aggregation: 74386
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117691
Unique aggregates announced from the ARIN address blocks: 48709
ARIN Region origin ASes present in the Internet Routing Table: 14738
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5652
ARIN Region transit ASes present in the Internet Routing Table: 1496
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: 804527104
Equivalent to 47 /8s, 244 /16s and 28 /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: 95318
Total RIPE prefixes after maximum aggregation: 51603
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87465
Unique aggregates announced from the RIPE address blocks: 55115
RIPE Region origin ASes present in the Internet Routing Table: 16196
RIPE Prefixes per ASN: 5.40
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2572
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 494396160
Equivalent to 29 /8s, 119 /16s and 227 /24s
Percentage of available RIPE address space announced: 79.6
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: 36250
Total LACNIC prefixes after maximum aggregation: 7905
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35910
Unique aggregates announced from the LACNIC address blocks: 18894
LACNIC Region origin ASes present in the Internet Routing Table: 1545
LACNIC Prefixes per ASN: 23.24
LACNIC Region origin ASes announcing only one prefix: 446
LACNIC Region transit ASes present in the Internet Routing Table: 273
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 94797056
Equivalent to 5 /8s, 166 /16s and 125 /24s
Percentage of available LACNIC address space announced: 62.8
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: 8454
Total AfriNIC prefixes after maximum aggregation: 2054
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6522
Unique aggregates announced from the AfriNIC address blocks: 2060
AfriNIC Region origin ASes present in the Internet Routing Table: 500
AfriNIC Prefixes per ASN: 13.04
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 111
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: 30852352
Equivalent to 1 /8s, 214 /16s and 197 /24s
Percentage of available AfriNIC address space announced: 46.0
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 1953 11101 664 Korea Telecom (KIX)
17974 1644 503 38 PT Telekomunikasi Indonesia
7545 1629 303 86 TPG Internet Pty Ltd
4755 1503 385 158 TATA Communications formerly
9829 1170 989 28 National Internet Backbone
9583 1101 81 494 Sify Limited
7552 1009 1062 11 Vietel Corporation
24560 996 385 167 Bharti Airtel Ltd., Telemedia
18101 965 122 157 Reliance Infocom Ltd Internet
4808 961 1950 272 CNCGROUP IP network China169
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 3479 3814 221 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1858 680 121 PaeTec Communications, Inc.
4323 1621 1090 388 tw telecom holdings, inc.
20115 1603 1549 626 Charter Communications
22773 1512 2909 105 Cox Communications Inc.
30036 1459 261 676 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1312 7046 861 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 1403 480 15 Corbina telecom
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
15557 1035 2161 64 NEUF CEGETEL (formerly LDCOM
6830 647 1928 413 UPC Broadband
34984 624 132 194 BILISIM TELEKOM
20940 548 176 440 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
12479 533 630 48 France Telecom Espana SA
3320 531 8162 397 Deutsche Telekom AG
3292 481 2106 408 TDC Data Networks
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 1717 318 155 Types of queries are: POCs, o
28573 1569 1064 75 Types of queries are: POCs, o
8151 1316 2970 340 Uninet S.A. de C.V.
7303 1247 751 175 Telecom Argentina S.A.
27947 608 73 94 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
3816 550 237 89 Types of queries are: POCs, o
6503 543 434 69 Axtel, S.A.B. de C.V.
11172 529 102 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
8452 1006 958 13 TEDATA
24863 786 146 33 LINKdotNET AS number
3741 281 939 230 The Internet Solution
6713 243 647 17 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 217 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 188 80 8 RAYA Telecom - Egypt
16637 157 664 85 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 3479 3814 221 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1953 11101 664 Korea Telecom (KIX)
1785 1858 680 121 PaeTec Communications, Inc.
10620 1717 318 155 Types of queries are: POCs, o
17974 1644 503 38 PT Telekomunikasi Indonesia
7545 1629 303 86 TPG Internet Pty Ltd
4323 1621 1090 388 tw telecom holdings, inc.
20115 1603 1549 626 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 2950 2737 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1858 1737 PaeTec Communications, Inc.
17974 1644 1606 PT Telekomunikasi Indonesia
10620 1717 1562 Types of queries are: POCs, o
7545 1629 1543 TPG Internet Pty Ltd
28573 1569 1494 Types of queries are: POCs, o
22773 1512 1407 Cox Communications Inc.
8402 1403 1388 Corbina telecom
4755 1503 1345 TATA Communications formerly
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
128.0.0.0/21 12654 RIPE NCC RIS Project
128.0.24.0/24 12654 RIPE NCC RIS Project
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
37.9.192.0/21 25424 INTERNEXT 2000 S.R.O.
37.10.0.0/17 23456 32-bit ASN transition
41.222.79.0/24 36938 >>UNKNOWN<<
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
64.21.212.0/22 11610 Internet Nebraska Corporation
64.21.216.0/21 11610 Internet Nebraska Corporation
66.129.0.0/19 3901 Higher Technology Services
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 /12:238
/13:465 /14:812 /15:1441 /16:12022 /17:6096 /18:10141
/19:20222 /20:27844 /21:28113 /22:38007 /23:35538 /24:199346
/25:11 /26:21 /27:20 /28:153 /29:135 /30:67
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2562 2950 Windstream Communications Inc
6389 2123 3479 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1612 1717 Types of queries are: POCs, o
30036 1419 1459 Mediacom Communications Corp
8402 1380 1403 Corbina telecom
11492 1105 1142 CABLE ONE, INC.
1785 1059 1858 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 991 1035 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:449 2:363 4:15 5:1 6:3 8:361
12:1943 13:1 14:558 15:11 16:3 17:7
20:9 23:76 24:1692 27:1107 31:733 32:62
33:2 34:2 36:4 38:771 40:114 41:2970
42:78 44:3 46:1139 47:3 49:278 50:464
52:13 55:5 56:2 57:41 58:879 59:480
60:339 61:1068 62:932 63:1960 64:4085 65:2298
66:4357 67:2006 68:1182 69:3131 70:917 71:378
72:1777 74:2636 75:431 76:320 77:926 78:851
79:436 80:1170 81:848 82:541 83:532 84:570
85:1168 86:740 87:901 88:341 89:1576 90:247
91:4368 92:540 93:1495 94:1323 95:1008 96:392
97:286 98:768 99:38 100:1 101:130 103:558
106:10 107:113 108:99 109:1402 110:671 111:818
112:366 113:488 114:593 115:683 116:865 117:696
118:887 119:1226 120:342 121:645 122:1555 123:1022
124:1294 125:1295 128:452 129:181 130:178 131:580
132:154 133:21 134:216 135:54 136:211 137:148
138:286 139:122 140:467 141:254 142:365 143:386
144:487 145:67 146:471 147:223 148:614 149:272
150:157 151:192 152:443 153:172 154:6 155:397
156:207 157:335 158:155 159:430 160:340 161:204
162:359 163:177 164:517 165:389 166:541 167:458
168:806 169:145 170:830 171:93 172:4 173:1793
174:596 175:405 176:321 177:435 178:1133 180:1204
181:38 182:658 183:259 184:402 185:1 186:1423
187:785 188:952 189:1183 190:5263 192:5938 193:5194
194:4286 195:3367 196:1263 197:173 198:3576 199:4187
200:5441 201:1713 202:8265 203:8419 204:4267 205:2389
206:2580 207:2763 208:4007 209:3535 210:2675 211:1444
212:1917 213:1801 214:790 215:92 216:4902 217:1493
218:563 219:331 220:1217 221:511 222:298 223:249
End of report
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