Routing Table Report 08:00 +10GMT Mon 26 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 396235
Prefixes after maximum aggregation: 169458
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195465
Total ASes present in the Internet Routing Table: 38210
Prefixes per ASN: 10.37
Origin-only ASes present in the Internet Routing Table: 32954
Origin ASes announcing only one prefix: 15497
Transit ASes present in the Internet Routing Table: 5256
Transit-only ASes present in the Internet Routing Table: 120
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: 1351
Unregistered ASNs in the Routing Table: 323
Number of 32-bit ASNs allocated by the RIRs: 2330
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5163
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 903
Number of addresses announced to Internet: 2545391616
Equivalent to 151 /8s, 183 /16s and 152 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 68.7
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: 167150
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92961
Total APNIC prefixes after maximum aggregation: 30648
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 90369
Unique aggregates announced from the APNIC address blocks: 39450
APNIC Region origin ASes present in the Internet Routing Table: 4632
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1258
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: 641179648
Equivalent to 38 /8s, 55 /16s and 160 /24s
Percentage of available APNIC address space announced: 81.3
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: 147885
Total ARIN prefixes after maximum aggregation: 75354
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119525
Unique aggregates announced from the ARIN address blocks: 49869
ARIN Region origin ASes present in the Internet Routing Table: 14876
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5672
ARIN Region transit ASes present in the Internet Routing Table: 1504
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: 805120256
Equivalent to 47 /8s, 253 /16s and 41 /24s
Percentage of available ARIN address space announced: 64.0
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: 101871
Total RIPE prefixes after maximum aggregation: 53119
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 93284
Unique aggregates announced from the RIPE address blocks: 57166
RIPE Region origin ASes present in the Internet Routing Table: 16351
RIPE Prefixes per ASN: 5.71
RIPE Region origin ASes announcing only one prefix: 7973
RIPE Region transit ASes present in the Internet Routing Table: 2584
Average RIPE Region AS path length visible: 3.6
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: 502204672
Equivalent to 29 /8s, 239 /16s and 9 /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: 38558
Total LACNIC prefixes after maximum aggregation: 8034
LACNIC Deaggregation factor: 4.80
Prefixes being announced from the LACNIC address blocks: 38502
Unique aggregates announced from the LACNIC address blocks: 19782
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 24.65
LACNIC Region origin ASes announcing only one prefix: 434
LACNIC Region transit ASes present in the Internet Routing Table: 285
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: 98535936
Equivalent to 5 /8s, 223 /16s and 138 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8823
Total AfriNIC prefixes after maximum aggregation: 2105
AfriNIC Deaggregation factor: 4.19
Prefixes being announced from the AfriNIC address blocks: 6920
Unique aggregates announced from the AfriNIC address blocks: 2180
AfriNIC Region origin ASes present in the Internet Routing Table: 518
AfriNIC Prefixes per ASN: 13.36
AfriNIC Region origin ASes announcing only one prefix: 160
AfriNIC Region transit ASes present in the Internet Routing Table: 114
Average AfriNIC Region AS path length visible: 3.5
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: 31507200
Equivalent to 1 /8s, 224 /16s and 195 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1928 11106 678 Korea Telecom (KIX)
17974 1676 502 63 PT Telekomunikasi Indonesia
7545 1653 303 90 TPG Internet Pty Ltd
4755 1554 385 159 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1206 1025 29 National Internet Backbone
7552 1110 1062 11 Vietel Corporation
24560 1012 384 166 Bharti Airtel Ltd., Telemedia
4808 982 1945 281 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 3410 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
1785 1888 680 128 PaeTec Communications, Inc.
20115 1633 1559 626 Charter Communications
4323 1600 1076 382 tw telecom holdings, inc.
22773 1544 2910 111 Cox Communications Inc.
30036 1402 253 742 Mediacom Communications Corp
7018 1288 9809 841 AT&T Services, Inc.
11492 1165 212 413 CABLE ONE, 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 1708 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1034 2247 55 NEUF CEGETEL (formerly LDCOM
31148 672 37 9 FreeNet ISP
34984 665 188 173 BILISIM TELEKOM
6830 641 1943 412 UPC Broadband
12479 641 654 56 France Telecom Espana SA
20940 622 202 488 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 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 1807 329 130 Types of queries are: POCs, o
28573 1727 1099 60 Types of queries are: POCs, o
7303 1351 826 190 Telecom Argentina S.A.
8151 1351 2998 346 Uninet S.A. de C.V.
26615 901 684 29 Tim Celular S.A.
27947 665 69 111 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 565 239 96 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 1265 958 13 TEDATA
24863 841 274 34 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
16637 161 664 84 MTN Network Solutions
33776 158 12 20 Starcomms Nigeria Limited
36923 157 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
7029 3410 1016 168 Windstream Communications Inc
6389 3372 3807 197 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
4766 1928 11106 678 Korea Telecom (KIX)
1785 1888 680 128 PaeTec Communications, Inc.
10620 1807 329 130 Types of queries are: POCs, o
28573 1727 1099 60 Types of queries are: POCs, o
8402 1708 544 16 Corbina telecom
17974 1676 502 63 PT Telekomunikasi Indonesia
7545 1653 303 90 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 3372 3175 BellSouth.net Inc.
18566 2094 1915 Covad Communications Co.
1785 1888 1760 PaeTec Communications, Inc.
8402 1708 1692 Corbina telecom
10620 1807 1677 Types of queries are: POCs, o
28573 1727 1667 Types of queries are: POCs, o
17974 1676 1613 PT Telekomunikasi Indonesia
7545 1653 1563 TPG Internet Pty Ltd
22773 1544 1433 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
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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.
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 /12:235
/13:458 /14:822 /15:1475 /16:12129 /17:6233 /18:10380
/19:20538 /20:28569 /21:29324 /22:39659 /23:37128 /24:208585
/25:11 /26:21 /27:20 /28:154 /29:143 /30:69
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3053 3410 Windstream Communications Inc
6389 2088 3372 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1704 1807 Types of queries are: POCs, o
8402 1685 1708 Corbina telecom
30036 1350 1402 Mediacom Communications Corp
11492 1128 1165 CABLE ONE, INC.
8452 1075 1265 TEDATA
1785 1067 1888 PaeTec Communications, Inc.
7011 1049 1163 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:718 4:14 6:3 8:391 12:1968
13:1 14:597 15:12 16:3 17:7 20:8
23:147 24:1749 27:1246 31:961 32:53 33:2
34:2 36:8 37:287 38:774 40:120 41:3018
42:129 44:3 46:1455 47:3 49:339 50:533
52:13 54:6 55:8 56:3 57:30 58:913
59:485 60:274 61:1083 62:1002 63:1989 64:4174
65:2273 66:4495 67:2010 68:1146 69:3182 70:900
71:438 72:1803 74:2595 75:491 76:320 77:959
78:979 79:499 80:1230 81:908 82:664 83:552
84:614 85:1194 86:736 87:917 88:343 89:1619
90:296 91:4631 92:519 93:1487 94:1453 95:1156
96:370 97:315 98:831 99:37 100:6 101:153
103:903 106:63 107:178 108:207 109:1554 110:736
111:900 112:431 113:546 114:624 115:761 116:886
117:704 118:905 119:1185 120:335 121:671 122:1622
123:1089 124:1297 125:1256 128:519 129:183 130:255
131:591 132:165 133:21 134:233 135:63 136:210
137:191 138:351 139:144 140:468 141:240 142:370
143:396 144:495 145:69 146:486 147:244 148:701
149:296 150:149 151:176 152:457 153:171 154:6
155:444 156:210 157:331 158:166 159:450 160:324
161:231 162:340 163:176 164:542 165:391 166:559
167:463 168:801 169:147 170:845 171:124 172:2
173:1712 174:608 175:422 176:461 177:591 178:1296
180:1117 181:73 182:746 183:274 184:441 185:1
186:2137 187:855 188:1149 189:1181 190:5552 192:5951
193:5597 194:4573 195:3639 196:1262 197:177 198:3574
199:4431 200:5661 201:1655 202:8207 203:8495 204:4270
205:2444 206:2648 207:2732 208:4043 209:3585 210:2685
211:1443 212:1991 213:1905 214:867 215:106 216:5043
217:1533 218:523 219:330 220:1226 221:535 222:297
223:310
End of report
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