Routing Table Report 08:00 +10GMT Thu 22 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 395579
Prefixes after maximum aggregation: 169037
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 194889
Total ASes present in the Internet Routing Table: 38189
Prefixes per ASN: 10.36
Origin-only ASes present in the Internet Routing Table: 32927
Origin ASes announcing only one prefix: 15522
Transit ASes present in the Internet Routing Table: 5262
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: 1320
Unregistered ASNs in the Routing Table: 303
Number of 32-bit ASNs allocated by the RIRs: 2325
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5105
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 829
Number of addresses announced to Internet: 2545208320
Equivalent to 151 /8s, 180 /16s and 204 /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: 166766
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92757
Total APNIC prefixes after maximum aggregation: 30537
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90181
Unique aggregates announced from the APNIC address blocks: 39277
APNIC Region origin ASes present in the Internet Routing Table: 4629
APNIC Prefixes per ASN: 19.48
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 699
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: 640921088
Equivalent to 38 /8s, 51 /16s and 174 /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: 147674
Total ARIN prefixes after maximum aggregation: 75226
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119466
Unique aggregates announced from the ARIN address blocks: 49815
ARIN Region origin ASes present in the Internet Routing Table: 14879
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5676
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: 806613248
Equivalent to 48 /8s, 19 /16s and 241 /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: 101746
Total RIPE prefixes after maximum aggregation: 53020
RIPE Deaggregation factor: 1.92
Prefixes being announced from the RIPE address blocks: 93162
Unique aggregates announced from the RIPE address blocks: 57088
RIPE Region origin ASes present in the Internet Routing Table: 16349
RIPE Prefixes per ASN: 5.70
RIPE Region origin ASes announcing only one prefix: 7982
RIPE Region transit ASes present in the Internet Routing Table: 2595
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: 502226176
Equivalent to 29 /8s, 239 /16s and 93 /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: 38434
Total LACNIC prefixes after maximum aggregation: 7971
LACNIC Deaggregation factor: 4.82
Prefixes being announced from the LACNIC address blocks: 38329
Unique aggregates announced from the LACNIC address blocks: 19678
LACNIC Region origin ASes present in the Internet Routing Table: 1561
LACNIC Prefixes per ASN: 24.55
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 284
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: 98513408
Equivalent to 5 /8s, 223 /16s and 50 /24s
Percentage of available LACNIC address space announced: 65.2
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: 8918
Total AfriNIC prefixes after maximum aggregation: 2111
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7018
Unique aggregates announced from the AfriNIC address blocks: 2192
AfriNIC Region origin ASes present in the Internet Routing Table: 522
AfriNIC Prefixes per ASN: 13.44
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: 3.5
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: 31495424
Equivalent to 1 /8s, 224 /16s and 149 /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 1936 11107 684 Korea Telecom (KIX)
17974 1666 500 61 PT Telekomunikasi Indonesia
7545 1652 303 89 TPG Internet Pty Ltd
4755 1554 385 159 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1189 1001 30 National Internet Backbone
7552 1108 1062 11 Vietel Corporation
24560 1013 384 166 Bharti Airtel Ltd., Telemedia
4808 982 1946 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 3403 1031 168 Windstream Communications Inc
6389 3376 3807 199 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
1785 1885 680 127 PaeTec Communications, Inc.
20115 1631 1557 630 Charter Communications
4323 1600 1076 382 tw telecom holdings, inc.
22773 1543 2910 111 Cox Communications Inc.
30036 1399 252 744 Mediacom Communications Corp
7018 1286 9809 842 AT&T Services, Inc.
11492 1164 212 415 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 1629 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
15557 1099 2247 55 NEUF CEGETEL (formerly LDCOM
31148 671 37 9 FreeNet ISP
34984 663 188 173 BILISIM TELEKOM
6830 641 1943 412 UPC Broadband
12479 634 651 55 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 1725 1099 60 Types of queries are: POCs, o
7303 1350 825 189 Telecom Argentina S.A.
8151 1333 2998 340 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 562 239 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 1258 958 13 TEDATA
24863 840 274 34 LINKdotNET AS number
6713 489 649 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
15399 190 29 12 Wananchi Online Limited
24835 177 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
16637 156 664 84 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
7029 3403 1031 168 Windstream Communications Inc
6389 3376 3807 199 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
4766 1936 11107 684 Korea Telecom (KIX)
1785 1885 680 127 PaeTec Communications, Inc.
10620 1807 329 130 Types of queries are: POCs, o
28573 1725 1099 60 Types of queries are: POCs, o
17974 1666 500 61 PT Telekomunikasi Indonesia
7545 1652 303 89 TPG Internet Pty Ltd
20115 1631 1557 630 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
6389 3376 3177 BellSouth.net Inc.
18566 2094 1915 Covad Communications Co.
1785 1885 1758 PaeTec Communications, Inc.
10620 1807 1677 Types of queries are: POCs, o
28573 1725 1665 Types of queries are: POCs, o
8402 1629 1613 Corbina telecom
17974 1666 1605 PT Telekomunikasi Indonesia
7545 1652 1563 TPG Internet Pty Ltd
22773 1543 1432 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 /12:236
/13:458 /14:820 /15:1475 /16:12128 /17:6240 /18:10374
/19:20527 /20:28502 /21:29271 /22:39630 /23:37082 /24:208139
/25:11 /26:20 /27:20 /28:152 /29:143 /30:68
/31:0 /32:142
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3046 3403 Windstream Communications Inc
6389 2090 3376 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1704 1807 Types of queries are: POCs, o
8402 1606 1629 Corbina telecom
30036 1347 1399 Mediacom Communications Corp
11492 1127 1164 CABLE ONE, INC.
8452 1068 1258 TEDATA
1785 1065 1885 PaeTec Communications, Inc.
15557 1046 1099 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:528 2:669 4:14 6:3 8:394 12:1974
13:1 14:605 15:12 16:3 17:7 20:8
23:145 24:1750 27:1238 31:955 32:57 33:2
34:2 36:8 37:289 38:774 40:122 41:3114
42:128 44:3 46:1435 47:3 49:339 50:517
52:13 54:6 55:10 56:3 57:35 58:913
59:486 60:274 61:1085 62:983 63:1990 64:4166
65:2273 66:4491 67:2006 68:1146 69:3182 70:900
71:436 72:1803 74:2584 75:491 76:320 77:961
78:981 79:498 80:1245 81:905 82:656 83:552
84:622 85:1196 86:740 87:921 88:348 89:1618
90:293 91:4622 92:520 93:1454 94:1455 95:1156
96:370 97:316 98:801 99:38 100:6 101:147
103:892 106:63 107:175 108:206 109:1563 110:734
111:899 112:430 113:542 114:622 115:755 116:847
117:706 118:907 119:1187 120:334 121:668 122:1618
123:1083 124:1298 125:1260 128:513 129:183 130:253
131:590 132:165 133:21 134:232 135:63 136:210
137:184 138:275 139:144 140:468 141:241 142:371
143:418 144:494 145:69 146:486 147:243 148:702
149:294 150:149 151:174 152:456 153:171 154:6
155:445 156:210 157:335 158:163 159:447 160:324
161:231 162:339 163:176 164:532 165:391 166:559
167:463 168:806 169:147 170:841 171:121 172:4
173:1716 174:590 175:421 176:458 177:568 178:1290
180:1114 181:73 182:738 183:277 184:442 185:1
186:2122 187:842 188:1142 189:1198 190:5492 192:5945
193:5600 194:4567 195:3635 196:1255 197:187 198:3572
199:4426 200:5650 201:1639 202:8176 203:8503 204:4273
205:2448 206:2654 207:2727 208:4046 209:3580 210:2678
211:1441 212:1994 213:1896 214:856 215:106 216:5036
217:1527 218:522 219:329 220:1226 221:536 222:297
223:314
End of report
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