Routing Table Report 08:00 +10GMT Wed 08 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 390071
Prefixes after maximum aggregation: 167447
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191980
Total ASes present in the Internet Routing Table: 37948
Prefixes per ASN: 10.28
Origin-only ASes present in the Internet Routing Table: 32687
Origin ASes announcing only one prefix: 15534
Transit ASes present in the Internet Routing Table: 5261
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: 24
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1058
Unregistered ASNs in the Routing Table: 183
Number of 32-bit ASNs allocated by the RIRs: 2267
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4694
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2530804992
Equivalent to 150 /8s, 217 /16s and 5 /24s
Percentage of available address space announced: 68.3
Percentage of allocated address space announced: 68.3
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.0
Total number of prefixes smaller than registry allocations: 164168
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92257
Total APNIC prefixes after maximum aggregation: 30200
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89574
Unique aggregates announced from the APNIC address blocks: 39134
APNIC Region origin ASes present in the Internet Routing Table: 4593
APNIC Prefixes per ASN: 19.50
APNIC Region origin ASes announcing only one prefix: 1257
APNIC Region transit ASes present in the Internet Routing Table: 702
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 635563520
Equivalent to 37 /8s, 225 /16s and 238 /24s
Percentage of available APNIC address space announced: 80.6
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: 146844
Total ARIN prefixes after maximum aggregation: 74811
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119112
Unique aggregates announced from the ARIN address blocks: 49302
ARIN Region origin ASes present in the Internet Routing Table: 14820
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5669
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: 18
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804384768
Equivalent to 47 /8s, 241 /16s and 240 /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: 98767
Total RIPE prefixes after maximum aggregation: 52319
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 90666
Unique aggregates announced from the RIPE address blocks: 55991
RIPE Region origin ASes present in the Internet Routing Table: 16298
RIPE Prefixes per ASN: 5.56
RIPE Region origin ASes announcing only one prefix: 8007
RIPE Region transit ASes present in the Internet Routing Table: 2588
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 23
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 500678912
Equivalent to 29 /8s, 215 /16s and 193 /24s
Percentage of available RIPE address space announced: 80.7
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: 37801
Total LACNIC prefixes after maximum aggregation: 7954
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37553
Unique aggregates announced from the LACNIC address blocks: 19440
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 24.12
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 283
Average LACNIC Region AS path length visible: 3.9
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: 96319488
Equivalent to 5 /8s, 189 /16s and 184 /24s
Percentage of available LACNIC address space announced: 63.8
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: 9003
Total AfriNIC prefixes after maximum aggregation: 2090
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 7038
Unique aggregates announced from the AfriNIC address blocks: 2142
AfriNIC Region origin ASes present in the Internet Routing Table: 510
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 117
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: 30867712
Equivalent to 1 /8s, 215 /16s and 1 /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 1912 11098 670 Korea Telecom (KIX)
17974 1641 503 36 PT Telekomunikasi Indonesia
7545 1640 303 85 TPG Internet Pty Ltd
4755 1518 385 157 TATA Communications formerly
9829 1170 989 28 National Internet Backbone
9583 1123 82 483 Sify Limited
7552 1079 1062 11 Vietel Corporation
24560 1013 385 167 Bharti Airtel Ltd., Telemedia
4808 977 1946 274 CNCGROUP IP network China169
18101 951 131 156 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 3464 1042 210 Windstream Communications Inc
6389 3442 3807 202 BellSouth.net Inc.
18566 2094 382 177 Covad Communications Co.
1785 1868 680 124 PaeTec Communications, Inc.
20115 1627 1553 628 Charter Communications
4323 1609 1078 384 tw telecom holdings, inc.
22773 1500 2910 109 Cox Communications Inc.
30036 1393 243 753 Mediacom Communications Corp
19262 1384 4683 400 Verizon Online LLC
7018 1317 7029 860 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 1568 480 15 Corbina telecom
2118 1390 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 63 NEUF CEGETEL (formerly LDCOM
34984 646 188 171 BILISIM TELEKOM
6830 642 1927 412 UPC Broadband
20940 598 195 470 Akamai Technologies European
8551 575 360 81 Bezeq International
12479 564 642 54 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 537 37 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 1735 323 170 Types of queries are: POCs, o
28573 1631 1085 69 Types of queries are: POCs, o
8151 1316 2976 337 Uninet S.A. de C.V.
7303 1262 758 181 Telecom Argentina S.A.
26615 897 664 33 Tim Celular S.A.
11172 696 111 76 Alestra, S. de R.L. de C.V.
27947 632 73 99 Telconet S.A
22047 581 322 17 Types of queries are: POCs, o
3816 552 238 91 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 1227 958 13 TEDATA
24863 827 155 40 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 238 13 14 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 193 80 8 RAYA Telecom - Egypt
29571 189 17 11 Ci Telecom Autonomous system
16637 160 664 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
7029 3464 1042 210 Windstream Communications Inc
6389 3442 3807 202 BellSouth.net Inc.
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1868 680 124 PaeTec Communications, Inc.
10620 1735 323 170 Types of queries are: POCs, o
17974 1641 503 36 PT Telekomunikasi Indonesia
7545 1640 303 85 TPG Internet Pty Ltd
28573 1631 1085 69 Types of queries are: POCs, o
20115 1627 1553 628 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 3442 3240 BellSouth.net Inc.
18566 2094 1917 Covad Communications Co.
1785 1868 1744 PaeTec Communications, Inc.
17974 1641 1605 PT Telekomunikasi Indonesia
10620 1735 1565 Types of queries are: POCs, o
28573 1631 1562 Types of queries are: POCs, o
7545 1640 1555 TPG Internet Pty Ltd
8402 1568 1553 Corbina telecom
22773 1500 1391 Cox Communications Inc.
2118 1390 1376 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
37.98.0.0/17 50810 Mobin Net Communication Compa
37.98.160.0/19 47241 Ivtelecom Ltd.
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 /12:232
/13:458 /14:814 /15:1469 /16:12093 /17:6163 /18:10234
/19:20464 /20:28085 /21:28838 /22:39174 /23:36638 /24:204726
/25:11 /26:21 /27:20 /28:153 /29:135 /30:66
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3073 3464 Windstream Communications Inc
6389 2111 3442 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1629 1735 Types of queries are: POCs, o
8402 1547 1568 Corbina telecom
30036 1353 1393 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1064 1868 PaeTec Communications, Inc.
15557 1045 1095 NEUF CEGETEL (formerly LDCOM
7011 1033 1149 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:496 2:435 4:14 5:1 6:3 8:383
12:1954 13:1 14:593 15:11 16:3 17:7
20:9 23:129 24:1717 27:1178 31:919 32:60
33:2 34:2 36:9 37:172 38:770 40:114
41:3189 42:92 44:3 46:1279 47:3 49:322
50:510 52:13 54:2 55:7 56:3 57:37
58:913 59:483 60:342 61:1085 62:929 63:2002
64:4134 65:2284 66:4412 67:2038 68:1172 69:3157
70:925 71:410 72:1796 74:2647 75:464 76:323
77:962 78:891 79:498 80:1221 81:870 82:575
83:524 84:581 85:1149 86:751 87:914 88:343
89:1539 90:274 91:4442 92:539 93:1531 94:1362
95:1112 96:412 97:310 98:779 99:38 100:4
101:137 103:742 106:9 107:148 108:145 109:1478
110:692 111:841 112:415 113:525 114:593 115:745
116:854 117:707 118:901 119:1235 120:359 121:651
122:1582 123:1063 124:1303 125:1313 128:469 129:181
130:208 131:552 132:163 133:21 134:220 135:60
136:212 137:150 138:285 139:144 140:465 141:261
142:361 143:403 144:517 145:70 146:479 147:227
148:699 149:273 150:160 151:196 152:446 153:170
154:6 155:414 156:208 157:336 158:156 159:439
160:320 161:226 162:338 163:177 164:524 165:395
166:555 167:457 168:759 169:146 170:833 171:109
172:2 173:1736 174:573 175:415 176:486 177:481
178:1239 180:1175 181:65 182:695 183:273 184:423
185:1 186:2037 187:839 188:1029 189:1179 190:5439
192:5938 193:5532 194:4332 195:3387 196:1278 197:181
198:3568 199:4329 200:5612 201:1733 202:8198 203:8526
204:4267 205:2425 206:2659 207:2745 208:4045 209:3546
210:2672 211:1447 212:2008 213:1833 214:854 215:94
216:4958 217:1467 218:540 219:336 220:1219 221:542
222:296 223:265
End of report