Routing Table Report 08:00 +10GMT Tue 20 Dec, 2011
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 380750
Prefixes after maximum aggregation: 165987
Deaggregation factor: 2.29
Unique aggregates announced to Internet: 189113
Total ASes present in the Internet Routing Table: 37692
Prefixes per ASN: 10.10
Origin-only ASes present in the Internet Routing Table: 32464
Origin ASes announcing only one prefix: 15519
Transit ASes present in the Internet Routing Table: 5228
Transit-only ASes present in the Internet Routing Table: 126
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: 2646
Unregistered ASNs in the Routing Table: 1066
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: 4216
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 93
Number of addresses announced to Internet: 2519847936
Equivalent to 150 /8s, 49 /16s and 212 /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: 159206
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 90662
Total APNIC prefixes after maximum aggregation: 29966
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 88072
Unique aggregates announced from the APNIC address blocks: 38561
APNIC Region origin ASes present in the Internet Routing Table: 4562
APNIC Prefixes per ASN: 19.31
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 706
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: 631638272
Equivalent to 37 /8s, 166 /16s and 9 /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: 145354
Total ARIN prefixes after maximum aggregation: 74404
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117722
Unique aggregates announced from the ARIN address blocks: 48739
ARIN Region origin ASes present in the Internet Routing Table: 14739
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5656
ARIN Region transit ASes present in the Internet Routing Table: 1498
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: 804594944
Equivalent to 47 /8s, 245 /16s and 37 /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: 95143
Total RIPE prefixes after maximum aggregation: 51577
RIPE Deaggregation factor: 1.84
Prefixes being announced from the RIPE address blocks: 87298
Unique aggregates announced from the RIPE address blocks: 55098
RIPE Region origin ASes present in the Internet Routing Table: 16176
RIPE Prefixes per ASN: 5.40
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2566
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: 494463232
Equivalent to 29 /8s, 120 /16s and 233 /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: 36210
Total LACNIC prefixes after maximum aggregation: 7903
LACNIC Deaggregation factor: 4.58
Prefixes being announced from the LACNIC address blocks: 35872
Unique aggregates announced from the LACNIC address blocks: 18915
LACNIC Region origin ASes present in the Internet Routing Table: 1545
LACNIC Prefixes per ASN: 23.22
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 94819328
Equivalent to 5 /8s, 166 /16s and 212 /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: 8458
Total AfriNIC prefixes after maximum aggregation: 2067
AfriNIC Deaggregation factor: 4.09
Prefixes being announced from the AfriNIC address blocks: 6517
Unique aggregates announced from the AfriNIC address blocks: 2062
AfriNIC Region origin ASes present in the Internet Routing Table: 502
AfriNIC Prefixes per ASN: 12.98
AfriNIC Region origin ASes announcing only one prefix: 157
AfriNIC Region transit ASes present in the Internet Routing Table: 114
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: 30838016
Equivalent to 1 /8s, 214 /16s and 141 /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 1921 11097 656 Korea Telecom (KIX)
17974 1630 503 38 PT Telekomunikasi Indonesia
7545 1625 303 85 TPG Internet Pty Ltd
4755 1503 385 158 TATA Communications formerly
9829 1168 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 969 130 156 Reliance Infocom Ltd Internet
4808 962 1950 273 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 3477 3814 221 BellSouth.net Inc.
7029 2952 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
1785 1859 681 122 PaeTec Communications, Inc.
4323 1617 1081 385 tw telecom holdings, inc.
20115 1605 1550 625 Charter Communications
22773 1512 2909 105 Cox Communications Inc.
30036 1451 259 677 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1313 7046 863 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 1415 480 15 Corbina telecom
2118 1097 99 14 EUnet/RELCOM Autonomous Syste
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
6830 646 1928 413 UPC Broadband
34984 625 132 194 BILISIM TELEKOM
20940 548 176 440 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
12479 537 630 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 1718 318 156 Types of queries are: POCs, o
28573 1567 1064 75 Types of queries are: POCs, o
8151 1315 2970 339 Uninet S.A. de C.V.
7303 1246 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
11172 529 102 96 Alestra, S. de R.L. de C.V.
6503 528 434 69 Axtel, S.A.B. 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
29571 217 17 13 Ci Telecom Autonomous system
33776 204 11 11 Starcomms Nigeria Limited
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 3477 3814 221 BellSouth.net Inc.
7029 2952 1042 213 Windstream Communications Inc
18566 2094 383 177 Covad Communications Co.
4766 1921 11097 656 Korea Telecom (KIX)
1785 1859 681 122 PaeTec Communications, Inc.
10620 1718 318 156 Types of queries are: POCs, o
17974 1630 503 38 PT Telekomunikasi Indonesia
7545 1625 303 85 TPG Internet Pty Ltd
4323 1617 1081 385 tw telecom holdings, inc.
20115 1605 1550 625 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 2952 2739 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1859 1737 PaeTec Communications, Inc.
17974 1630 1592 PT Telekomunikasi Indonesia
10620 1718 1562 Types of queries are: POCs, o
7545 1625 1540 TPG Internet Pty Ltd
28573 1567 1492 Types of queries are: POCs, o
22773 1512 1407 Cox Communications Inc.
8402 1415 1400 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
37.17.0.0/17 42772 RIPE Network Coordination Cen
37.17.208.0/20 28878 Signet B.V.
37.17.232.0/21 13030 Init7 Global Backbone
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
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 /16:12023 /17:6103 /18:10136
/19:20206 /20:27826 /21:28115 /22:37886 /23:35492 /24:199320
/25:11 /26:21 /27:20 /28:154 /29:135 /30:66
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2564 2952 Windstream Communications Inc
6389 2121 3477 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1613 1718 Types of queries are: POCs, o
30036 1411 1451 Mediacom Communications Corp
8402 1393 1415 Corbina telecom
11492 1114 1151 CABLE ONE, INC.
1785 1059 1859 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1042 1092 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:451 2:381 4:15 5:1 6:3 8:360
12:1942 13:1 14:557 15:11 16:3 17:7
20:9 23:75 24:1710 27:1117 31:733 32:62
33:2 34:2 36:4 38:770 40:114 41:2975
42:79 44:3 46:1139 47:3 49:278 50:469
52:13 55:4 56:2 57:41 58:878 59:480
60:339 61:1070 62:938 63:1960 64:4084 65:2302
66:4358 67:2004 68:1169 69:3126 70:917 71:378
72:1780 74:2642 75:432 76:321 77:932 78:833
79:444 80:1169 81:847 82:536 83:532 84:573
85:1159 86:748 87:904 88:332 89:1572 90:248
91:4351 92:541 93:1493 94:1325 95:1023 96:392
97:286 98:770 99:38 100:1 101:130 103:562
106:10 107:114 108:100 109:1396 110:674 111:813
112:368 113:493 114:591 115:684 116:866 117:696
118:887 119:1226 120:354 121:648 122:1551 123:1012
124:1295 125:1294 128:460 129:180 130:178 131:580
132:153 133:21 134:216 135:54 136:211 137:148
138:286 139:122 140:466 141:254 142:365 143:382
144:498 145:67 146:466 147:223 148:614 149:267
150:157 151:192 152:443 153:169 154:6 155:397
156:207 157:335 158:155 159:429 160:341 161:204
162:360 163:175 164:517 165:394 166:543 167:457
168:814 169:145 170:829 171:95 172:4 173:1790
174:594 175:413 176:314 177:448 178:1135 180:1132
181:39 182:660 183:260 184:403 185:1 186:1416
187:783 188:956 189:1169 190:5254 192:5935 193:5196
194:4283 195:3349 196:1267 197:174 198:3575 199:4185
200:5433 201:1712 202:8274 203:8419 204:4267 205:2397
206:2578 207:2770 208:4011 209:3539 210:2678 211:1444
212:1941 213:1786 214:797 215:92 216:4889 217:1497
218:554 219:331 220:1223 221:503 222:296 223:252
End of report
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