Routing Table Report 08:00 +10GMT Fri 16 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 394103
Prefixes after maximum aggregation: 168812
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 194491
Total ASes present in the Internet Routing Table: 38146
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 32889
Origin ASes announcing only one prefix: 15503
Transit ASes present in the Internet Routing Table: 5257
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: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1304
Unregistered ASNs in the Routing Table: 281
Number of 32-bit ASNs allocated by the RIRs: 2321
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5018
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 665
Number of addresses announced to Internet: 2543819520
Equivalent to 151 /8s, 159 /16s and 155 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 165940
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92489
Total APNIC prefixes after maximum aggregation: 30444
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 89885
Unique aggregates announced from the APNIC address blocks: 39204
APNIC Region origin ASes present in the Internet Routing Table: 4613
APNIC Prefixes per ASN: 19.49
APNIC Region origin ASes announcing only one prefix: 1254
APNIC Region transit ASes present in the Internet Routing Table: 700
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 640233728
Equivalent to 38 /8s, 41 /16s and 49 /24s
Percentage of available APNIC address space announced: 81.2
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: 147566
Total ARIN prefixes after maximum aggregation: 75215
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119405
Unique aggregates announced from the ARIN address blocks: 49856
ARIN Region origin ASes present in the Internet Routing Table: 14871
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5657
ARIN Region transit ASes present in the Internet Routing Table: 1507
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 806491648
Equivalent to 48 /8s, 18 /16s and 22 /24s
Percentage of available ARIN address space announced: 64.1
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: 101076
Total RIPE prefixes after maximum aggregation: 52892
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92625
Unique aggregates announced from the RIPE address blocks: 56947
RIPE Region origin ASes present in the Internet Routing Table: 16340
RIPE Prefixes per ASN: 5.67
RIPE Region origin ASes announcing only one prefix: 7988
RIPE Region transit ASes present in the Internet Routing Table: 2574
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 502162944
Equivalent to 29 /8s, 238 /16s and 102 /24s
Percentage of available RIPE address space announced: 80.9
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: 38319
Total LACNIC prefixes after maximum aggregation: 8008
LACNIC Deaggregation factor: 4.79
Prefixes being announced from the LACNIC address blocks: 38241
Unique aggregates announced from the LACNIC address blocks: 19625
LACNIC Region origin ASes present in the Internet Routing Table: 1565
LACNIC Prefixes per ASN: 24.44
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 281
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98163968
Equivalent to 5 /8s, 217 /16s and 221 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8728
Total AfriNIC prefixes after maximum aggregation: 2103
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6840
Unique aggregates announced from the AfriNIC address blocks: 2163
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.08
AfriNIC Region origin ASes announcing only one prefix: 165
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 31530240
Equivalent to 1 /8s, 225 /16s and 29 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1931 11106 682 Korea Telecom (KIX)
17974 1663 503 36 PT Telekomunikasi Indonesia
7545 1649 303 89 TPG Internet Pty Ltd
4755 1551 386 160 TATA Communications formerly
9583 1200 91 510 Sify Limited
9829 1188 1001 30 National Internet Backbone
7552 1105 1062 11 Vietel Corporation
24560 1010 384 166 Bharti Airtel Ltd., Telemedia
4808 980 1946 280 CNCGROUP IP network China169
18101 949 131 160 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
7029 3427 1032 171 Windstream Communications Inc
6389 3398 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1885 680 127 PaeTec Communications, Inc.
20115 1631 1558 629 Charter Communications
4323 1599 1076 382 tw telecom holdings, inc.
22773 1546 2910 111 Cox Communications Inc.
30036 1402 253 757 Mediacom Communications Corp
7018 1284 9809 845 AT&T Services, Inc.
2386 1158 493 858 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
8402 1685 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1089 2247 55 NEUF CEGETEL (formerly LDCOM
34984 661 188 170 BILISIM TELEKOM
6830 640 1927 411 UPC Broadband
12479 630 653 67 France Telecom Espana SA
20940 617 200 487 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
31148 538 37 9 FreeNet ISP
3320 533 8442 399 Deutsche Telekom AG
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 1789 328 143 Types of queries are: POCs, o
28573 1718 1094 58 Types of queries are: POCs, o
8151 1337 2994 340 Uninet S.A. de C.V.
7303 1330 823 185 Telecom Argentina S.A.
26615 900 676 30 Tim Celular S.A.
27947 657 68 108 Telconet S.A
11172 637 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 563 240 89 Types of queries are: POCs, o
7738 550 1050 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 1259 958 13 TEDATA
24863 839 274 34 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 268 922 225 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 183 80 8 RAYA Telecom - Egypt
33776 158 12 25 Starcomms Nigeria Limited
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
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
7029 3427 1032 171 Windstream Communications Inc
6389 3398 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1931 11106 682 Korea Telecom (KIX)
1785 1885 680 127 PaeTec Communications, Inc.
10620 1789 328 143 Types of queries are: POCs, o
28573 1718 1094 58 Types of queries are: POCs, o
8402 1685 544 16 Corbina telecom
17974 1663 503 36 PT Telekomunikasi Indonesia
7545 1649 303 89 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
6389 3398 3199 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1885 1758 PaeTec Communications, Inc.
8402 1685 1669 Corbina telecom
28573 1718 1660 Types of queries are: POCs, o
10620 1789 1646 Types of queries are: POCs, o
17974 1663 1627 PT Telekomunikasi Indonesia
7545 1649 1560 TPG Internet Pty Ltd
22773 1546 1435 Cox Communications Inc.
2118 1427 1414 EUnet/RELCOM Autonomous Syste
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
14.192.0.0/22 45464 Room 201, TGU Bldg
14.192.4.0/22 45464 Room 201, TGU Bldg
14.192.8.0/22 45464 Room 201, TGU Bldg
14.192.12.0/22 45464 Room 201, TGU Bldg
14.192.16.0/22 45464 Room 201, TGU Bldg
14.192.20.0/22 45464 Room 201, TGU Bldg
14.192.24.0/22 45464 Room 201, TGU Bldg
14.192.28.0/22 45464 Room 201, TGU Bldg
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /10:28 /11:81 /12:236
/13:458 /14:818 /15:1473 /16:12131 /17:6216 /18:10345
/19:20496 /20:28450 /21:29199 /22:39466 /23:36896 /24:207225
/25:11 /26:21 /27:20 /28:154 /29:137 /30:69
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3066 3427 Windstream Communications Inc
6389 2095 3398 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1686 1789 Types of queries are: POCs, o
8402 1661 1685 Corbina telecom
30036 1352 1402 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
8452 1069 1259 TEDATA
1785 1065 1885 PaeTec Communications, Inc.
7011 1038 1152 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:526 2:687 4:14 6:3 8:392 12:1970
13:1 14:598 15:12 16:3 17:7 20:8
23:144 24:1746 27:1197 31:980 32:57 33:2
34:2 36:8 37:257 38:769 40:122 41:3026
42:128 44:3 46:1413 47:3 49:339 50:517
52:13 54:5 55:8 56:3 57:36 58:899
59:486 60:274 61:1076 62:975 63:2006 64:4143
65:2281 66:4482 67:2014 68:1158 69:3166 70:898
71:389 72:1779 74:2579 75:490 76:320 77:970
78:964 79:494 80:1220 81:891 82:637 83:549
84:597 85:1191 86:734 87:912 88:335 89:1563
90:287 91:4589 92:516 93:1402 94:1393 95:1100
96:370 97:316 98:819 99:38 100:6 101:145
103:883 106:63 107:174 108:201 109:1546 110:730
111:875 112:429 113:544 114:606 115:767 116:845
117:703 118:893 119:1186 120:329 121:664 122:1586
123:1087 124:1298 125:1272 128:506 129:183 130:253
131:576 132:162 133:21 134:229 135:63 136:210
137:182 138:273 139:144 140:459 141:236 142:371
143:412 144:497 145:69 146:484 147:241 148:704
149:299 150:151 151:177 152:447 153:171 154:6
155:446 156:209 157:336 158:162 159:447 160:327
161:227 162:337 163:176 164:528 165:395 166:560
167:463 168:806 169:147 170:843 171:121 172:4
173:1721 174:600 175:423 176:551 177:567 178:1284
180:1118 181:72 182:764 183:284 184:442 185:1
186:2103 187:841 188:1058 189:1200 190:5504 192:5947
193:5590 194:4563 195:3638 196:1263 197:168 198:3571
199:4415 200:5650 201:1639 202:8124 203:8496 204:4277
205:2439 206:2656 207:2727 208:4070 209:3575 210:2679
211:1439 212:1968 213:1877 214:864 215:102 216:5025
217:1526 218:524 219:335 220:1226 221:536 222:297
223:293
End of report
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