Routing Table Report 08:00 +10GMT Sat 21 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 386491
Prefixes after maximum aggregation: 166987
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 191139
Total ASes present in the Internet Routing Table: 37851
Prefixes per ASN: 10.21
Origin-only ASes present in the Internet Routing Table: 32617
Origin ASes announcing only one prefix: 15514
Transit ASes present in the Internet Routing Table: 5234
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: 2891
Unregistered ASNs in the Routing Table: 1152
Number of 32-bit ASNs allocated by the RIRs: 2200
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4542
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2528368384
Equivalent to 150 /8s, 179 /16s and 215 /24s
Percentage of available address space announced: 68.2
Percentage of allocated address space announced: 68.2
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.9
Total number of prefixes smaller than registry allocations: 161901
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92036
Total APNIC prefixes after maximum aggregation: 30149
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89336
Unique aggregates announced from the APNIC address blocks: 39109
APNIC Region origin ASes present in the Internet Routing Table: 4580
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1253
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: 634752512
Equivalent to 37 /8s, 213 /16s and 142 /24s
Percentage of available APNIC address space announced: 80.5
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: 146399
Total ARIN prefixes after maximum aggregation: 74684
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118618
Unique aggregates announced from the ARIN address blocks: 49057
ARIN Region origin ASes present in the Internet Routing Table: 14789
ARIN Prefixes per ASN: 8.02
ARIN Region origin ASes announcing only one prefix: 5663
ARIN Region transit ASes present in the Internet Routing Table: 1500
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: 805056256
Equivalent to 47 /8s, 252 /16s and 47 /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: 97350
Total RIPE prefixes after maximum aggregation: 52031
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 89227
Unique aggregates announced from the RIPE address blocks: 55668
RIPE Region origin ASes present in the Internet Routing Table: 16258
RIPE Prefixes per ASN: 5.49
RIPE Region origin ASes announcing only one prefix: 7996
RIPE Region transit ASes present in the Internet Routing Table: 2571
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: 497748992
Equivalent to 29 /8s, 171 /16s and 12 /24s
Percentage of available RIPE address space announced: 80.2
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: 36756
Total LACNIC prefixes after maximum aggregation: 7978
LACNIC Deaggregation factor: 4.61
Prefixes being announced from the LACNIC address blocks: 36549
Unique aggregates announced from the LACNIC address blocks: 19326
LACNIC Region origin ASes present in the Internet Routing Table: 1554
LACNIC Prefixes per ASN: 23.52
LACNIC Region origin ASes announcing only one prefix: 444
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: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95499520
Equivalent to 5 /8s, 177 /16s and 53 /24s
Percentage of available LACNIC address space announced: 63.2
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: 8702
Total AfriNIC prefixes after maximum aggregation: 2074
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6743
Unique aggregates announced from the AfriNIC address blocks: 2086
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.41
AfriNIC Region origin ASes announcing only one prefix: 158
AfriNIC Region transit ASes present in the Internet Routing Table: 118
Average AfriNIC Region AS path length visible: 3.3
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: 30795264
Equivalent to 1 /8s, 213 /16s and 230 /24s
Percentage of available AfriNIC address space announced: 45.9
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 1911 11097 664 Korea Telecom (KIX)
17974 1636 503 36 PT Telekomunikasi Indonesia
7545 1635 303 86 TPG Internet Pty Ltd
4755 1510 385 156 TATA Communications formerly
9829 1161 988 32 National Internet Backbone
9583 1119 81 490 Sify Limited
7552 1117 1062 11 Vietel Corporation
24560 1007 383 166 Bharti Airtel Ltd., Telemedia
4808 982 1947 277 CNCGROUP IP network China169
18101 947 131 155 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
6389 3448 3807 202 BellSouth.net Inc.
7029 3254 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 679 121 PaeTec Communications, Inc.
20115 1619 1553 615 Charter Communications
4323 1607 1078 383 tw telecom holdings, inc.
30036 1486 265 706 Mediacom Communications Corp
22773 1485 2909 108 Cox Communications Inc.
19262 1385 4683 400 Verizon Online LLC
7018 1307 7026 858 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 1540 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 644 1928 413 UPC Broadband
34984 637 188 171 BILISIM TELEKOM
8551 573 360 81 Bezeq International
20940 571 184 455 Akamai Technologies European
12479 553 639 55 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 530 35 9 FreeNet ISP
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 1723 321 167 Types of queries are: POCs, o
28573 1610 1068 77 Types of queries are: POCs, o
8151 1320 2981 336 Uninet S.A. de C.V.
7303 1256 756 179 Telecom Argentina S.A.
27947 620 73 96 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 553 238 92 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
11172 533 101 107 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 1031 958 13 TEDATA
24863 794 146 33 LINKdotNET AS number
6713 487 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 239 32 6 Sudatel Internet Exchange Aut
33776 234 13 14 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 189 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 3448 3807 202 BellSouth.net Inc.
7029 3254 1042 211 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1911 11097 664 Korea Telecom (KIX)
1785 1867 679 121 PaeTec Communications, Inc.
10620 1723 321 167 Types of queries are: POCs, o
17974 1636 503 36 PT Telekomunikasi Indonesia
7545 1635 303 86 TPG Internet Pty Ltd
20115 1619 1553 615 Charter Communications
28573 1610 1068 77 Types of queries are: POCs, o
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 3254 3043 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1746 PaeTec Communications, Inc.
17974 1636 1600 PT Telekomunikasi Indonesia
10620 1723 1556 Types of queries are: POCs, o
7545 1635 1549 TPG Internet Pty Ltd
28573 1610 1533 Types of queries are: POCs, o
8402 1540 1525 Corbina telecom
22773 1485 1377 Cox Communications Inc.
4755 1510 1354 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
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
37.60.208.0/20 31214 TIS-DIALOG Autonomous system
37.61.144.0/20 34977 PROCONO S.A.
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 /11:80 /12:233
/13:458 /14:815 /15:1459 /16:12077 /17:6141 /18:10171
/19:20309 /20:28026 /21:28778 /22:38705 /23:36410 /24:202224
/25:11 /26:21 /27:20 /28:153 /29:136 /30:66
/31:0 /32:139
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2860 3254 Windstream Communications Inc
6389 2118 3448 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1618 1723 Types of queries are: POCs, o
8402 1519 1540 Corbina telecom
30036 1443 1486 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1067 1867 PaeTec Communications, Inc.
15557 1046 1095 NEUF CEGETEL (formerly LDCOM
7011 1031 1148 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:500 2:425 4:15 5:1 6:3 8:378
12:1949 13:1 14:577 15:11 16:3 17:6
20:9 23:112 24:1672 27:1171 31:867 32:60
33:2 34:2 36:8 37:102 38:788 40:114
41:2945 42:87 44:3 46:1228 47:3 49:319
50:517 52:13 54:1 55:6 56:3 57:37
58:903 59:480 60:342 61:1074 62:920 63:1972
64:4083 65:2287 66:4394 67:2019 68:1153 69:3141
70:918 71:428 72:1800 74:2649 75:445 76:320
77:962 78:881 79:504 80:1192 81:870 82:564
83:532 84:585 85:1151 86:749 87:910 88:341
89:1488 90:257 91:4430 92:531 93:1519 94:1322
95:1067 96:420 97:298 98:788 99:38 100:18
101:132 103:644 106:9 107:135 108:125 109:1466
110:687 111:822 112:414 113:523 114:607 115:737
116:843 117:707 118:899 119:1234 120:354 121:651
122:1591 123:1060 124:1303 125:1309 128:484 129:184
130:206 131:586 132:152 133:21 134:222 135:59
136:211 137:149 138:288 139:144 140:464 141:259
142:359 143:393 144:503 145:68 146:481 147:225
148:621 149:280 150:158 151:193 152:444 153:170
154:6 155:415 156:207 157:336 158:154 159:437
160:319 161:204 162:335 163:178 164:526 165:395
166:560 167:457 168:847 169:146 170:835 171:106
172:4 173:1779 174:584 175:416 176:363 177:468
178:1203 180:1227 181:43 182:682 183:274 184:391
185:1 186:1506 187:842 188:970 189:1175 190:5336
192:5946 193:5466 194:4206 195:3383 196:1271 197:168
198:3574 199:4285 200:5527 201:1697 202:8192 203:8500
204:4257 205:2409 206:2659 207:2732 208:3996 209:3519
210:2660 211:1444 212:1977 213:1826 214:841 215:94
216:4949 217:1476 218:540 219:336 220:1214 221:542
222:297 223:255
End of report
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