Routing Table Report 08:00 +10GMT Mon 19 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 381060
Prefixes after maximum aggregation: 165937
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 189048
Total ASes present in the Internet Routing Table: 37699
Prefixes per ASN: 10.11
Origin-only ASes present in the Internet Routing Table: 32467
Origin ASes announcing only one prefix: 15527
Transit ASes present in the Internet Routing Table: 5232
Transit-only ASes present in the Internet Routing Table: 128
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: 2656
Unregistered ASNs in the Routing Table: 1067
Number of 32-bit ASNs allocated by the RIRs: 2106
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4203
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 89
Number of addresses announced to Internet: 2520068352
Equivalent to 150 /8s, 53 /16s and 49 /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: 91.8
Total number of prefixes smaller than registry allocations: 159431
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90720
Total APNIC prefixes after maximum aggregation: 29961
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88105
Unique aggregates announced from the APNIC address blocks: 38560
APNIC Region origin ASes present in the Internet Routing Table: 4558
APNIC Prefixes per ASN: 19.33
APNIC Region origin ASes announcing only one prefix: 1262
APNIC Region transit ASes present in the Internet Routing Table: 703
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: 631701504
Equivalent to 37 /8s, 167 /16s and 0 /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: 145389
Total ARIN prefixes after maximum aggregation: 74377
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117735
Unique aggregates announced from the ARIN address blocks: 48734
ARIN Region origin ASes present in the Internet Routing Table: 14733
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5649
ARIN Region transit ASes present in the Internet Routing Table: 1499
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: 804557568
Equivalent to 47 /8s, 244 /16s and 147 /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: 95321
Total RIPE prefixes after maximum aggregation: 51577
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87460
Unique aggregates announced from the RIPE address blocks: 55082
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: 8013
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: 22
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 494513920
Equivalent to 29 /8s, 121 /16s and 175 /24s
Percentage of available RIPE address space announced: 79.7
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: 36212
Total LACNIC prefixes after maximum aggregation: 7893
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 35885
Unique aggregates announced from the LACNIC address blocks: 18890
LACNIC Region origin ASes present in the Internet Routing Table: 1541
LACNIC Prefixes per ASN: 23.29
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: 94784256
Equivalent to 5 /8s, 166 /16s and 75 /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: 8515
Total AfriNIC prefixes after maximum aggregation: 2059
AfriNIC Deaggregation factor: 4.14
Prefixes being announced from the AfriNIC address blocks: 6571
Unique aggregates announced from the AfriNIC address blocks: 2069
AfriNIC Region origin ASes present in the Internet Routing Table: 501
AfriNIC Prefixes per ASN: 13.12
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 30851072
Equivalent to 1 /8s, 214 /16s and 192 /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 1920 11097 656 Korea Telecom (KIX)
17974 1647 503 37 PT Telekomunikasi Indonesia
7545 1629 303 86 TPG Internet Pty Ltd
4755 1502 385 158 TATA Communications formerly
9829 1166 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 967 130 156 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 3476 3814 221 BellSouth.net Inc.
7029 2951 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1859 681 122 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 1457 260 673 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1323 7047 865 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 1511 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 536 630 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 1568 1064 75 Types of queries are: POCs, o
8151 1315 2970 341 Uninet S.A. de C.V.
7303 1248 752 176 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 544 434 69 Axtel, S.A.B. de C.V.
11172 530 102 97 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 1038 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
36923 180 20 4 Swift Networks Limited
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 3476 3814 221 BellSouth.net Inc.
7029 2951 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1920 11097 656 Korea Telecom (KIX)
1785 1859 681 122 PaeTec Communications, Inc.
10620 1717 318 155 Types of queries are: POCs, o
17974 1647 503 37 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 2951 2738 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1859 1737 PaeTec Communications, Inc.
17974 1647 1610 PT Telekomunikasi Indonesia
10620 1717 1562 Types of queries are: POCs, o
7545 1629 1543 TPG Internet Pty Ltd
8402 1511 1496 Corbina telecom
28573 1568 1493 Types of queries are: POCs, o
22773 1512 1407 Cox Communications Inc.
4755 1502 1344 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
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
66.175.222.0/23 30058 FDC Servers.net, LLC
66.180.239.0/24 35888 VIGNETTE 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 /12:238
/13:465 /14:812 /15:1441 /16:12020 /17:6106 /18:10137
/19:20226 /20:27824 /21:28119 /22:37923 /23:35537 /24:199531
/25:11 /26:21 /27:20 /28:151 /29:134 /30:68
/31:0 /32:136
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2563 2951 Windstream Communications Inc
6389 2120 3476 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1612 1717 Types of queries are: POCs, o
8402 1488 1511 Corbina telecom
30036 1417 1457 Mediacom Communications Corp
11492 1112 1149 CABLE ONE, INC.
1785 1059 1859 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 2:410 4:15 5:1 6:3 8:361
12:1943 13:1 14:556 15:11 16:3 17:7
20:9 23:75 24:1695 27:1114 31:734 32:62
33:2 34:2 36:4 38:770 40:114 41:2995
42:78 44:3 46:1140 47:3 49:278 50:463
52:13 55:6 56:2 57:41 58:843 59:480
60:339 61:1067 62:931 63:1959 64:4082 65:2301
66:4361 67:2006 68:1182 69:3126 70:917 71:377
72:1779 74:2641 75:432 76:320 77:934 78:855
79:444 80:1171 81:849 82:536 83:532 84:569
85:1159 86:742 87:902 88:331 89:1581 90:236
91:4349 92:540 93:1509 94:1320 95:1032 96:393
97:286 98:768 99:38 100:1 101:130 103:562
106:10 107:113 108:99 109:1400 110:672 111:817
112:367 113:488 114:592 115:657 116:871 117:697
118:887 119:1224 120:341 121:647 122:1556 123:1020
124:1294 125:1293 128:483 129:180 130:178 131:582
132:154 133:21 134:214 135:54 136:211 137:148
138:286 139:122 140:467 141:254 142:365 143:383
144:499 145:67 146:471 147:223 148:613 149:272
150:157 151:192 152:443 153:172 154:6 155:397
156:207 157:335 158:155 159:429 160:340 161:204
162:359 163:176 164:516 165:390 166:542 167:456
168:811 169:145 170:828 171:93 172:4 173:1797
174:592 175:406 176:316 177:440 178:1144 180:1205
181:39 182:659 183:260 184:402 185:1 186:1414
187:786 188:956 189:1184 190:5264 192:5940 193:5189
194:4286 195:3366 196:1269 197:174 198:3575 199:4185
200:5440 201:1710 202:8265 203:8418 204:4265 205:2394
206:2575 207:2770 208:4013 209:3538 210:2676 211:1446
212:1983 213:1793 214:800 215:93 216:4906 217:1503
218:562 219:331 220:1220 221:509 222:296 223:252
End of report
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