Routing Table Report 08:00 +10GMT Thu 02 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 389039
Prefixes after maximum aggregation: 167341
Deaggregation factor: 2.32
Unique aggregates announced to Internet: 191842
Total ASes present in the Internet Routing Table: 37911
Prefixes per ASN: 10.26
Origin-only ASes present in the Internet Routing Table: 32655
Origin ASes announcing only one prefix: 15520
Transit ASes present in the Internet Routing Table: 5256
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: 1057
Unregistered ASNs in the Routing Table: 183
Number of 32-bit ASNs allocated by the RIRs: 2248
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4615
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 120
Number of addresses announced to Internet: 2529328896
Equivalent to 150 /8s, 194 /16s and 127 /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: 92.0
Total number of prefixes smaller than registry allocations: 163834
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92101
Total APNIC prefixes after maximum aggregation: 30158
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89396
Unique aggregates announced from the APNIC address blocks: 39082
APNIC Region origin ASes present in the Internet Routing Table: 4593
APNIC Prefixes per ASN: 19.46
APNIC Region origin ASes announcing only one prefix: 1255
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: 16
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 635306496
Equivalent to 37 /8s, 222 /16s and 2 /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: 146912
Total ARIN prefixes after maximum aggregation: 74881
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119138
Unique aggregates announced from the ARIN address blocks: 49280
ARIN Region origin ASes present in the Internet Routing Table: 14806
ARIN Prefixes per ASN: 8.05
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1502
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: 804392448
Equivalent to 47 /8s, 242 /16s and 14 /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: 98130
Total RIPE prefixes after maximum aggregation: 52204
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 90008
Unique aggregates announced from the RIPE address blocks: 55958
RIPE Region origin ASes present in the Internet Routing Table: 16278
RIPE Prefixes per ASN: 5.53
RIPE Region origin ASes announcing only one prefix: 7993
RIPE Region transit ASes present in the Internet Routing Table: 2577
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: 498512128
Equivalent to 29 /8s, 182 /16s and 177 /24s
Percentage of available RIPE address space announced: 80.3
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: 37591
Total LACNIC prefixes after maximum aggregation: 7950
LACNIC Deaggregation factor: 4.73
Prefixes being announced from the LACNIC address blocks: 37333
Unique aggregates announced from the LACNIC address blocks: 19406
LACNIC Region origin ASes present in the Internet Routing Table: 1555
LACNIC Prefixes per ASN: 24.01
LACNIC Region origin ASes announcing only one prefix: 441
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: 22
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95851264
Equivalent to 5 /8s, 182 /16s and 147 /24s
Percentage of available LACNIC address space announced: 63.5
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: 8984
Total AfriNIC prefixes after maximum aggregation: 2075
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7011
Unique aggregates announced from the AfriNIC address blocks: 2105
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 13.77
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: 30855424
Equivalent to 1 /8s, 214 /16s and 209 /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)
7545 1639 303 86 TPG Internet Pty Ltd
17974 1635 503 35 PT Telekomunikasi Indonesia
4755 1513 385 156 TATA Communications formerly
9829 1167 989 28 National Internet Backbone
9583 1118 81 483 Sify Limited
7552 1107 1062 11 Vietel Corporation
24560 1016 385 167 Bharti Airtel Ltd., Telemedia
4808 983 1947 278 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
6389 3445 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 124 PaeTec Communications, Inc.
20115 1624 1552 626 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1496 2910 109 Cox Communications Inc.
30036 1449 254 738 Mediacom Communications Corp
19262 1386 4683 401 Verizon Online LLC
7018 1315 7042 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 1634 480 15 Corbina telecom
2118 1241 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 641 188 172 BILISIM TELEKOM
20940 595 194 468 Akamai Technologies European
8551 575 360 81 Bezeq International
12479 551 641 56 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 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 1734 323 170 Types of queries are: POCs, o
28573 1626 1085 69 Types of queries are: POCs, o
8151 1315 2976 338 Uninet S.A. de C.V.
7303 1258 756 180 Telecom Argentina S.A.
26615 890 632 33 Tim Celular S.A.
11172 696 111 76 Alestra, S. de R.L. de C.V.
27947 627 73 99 Telconet S.A
22047 582 322 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 1243 958 13 TEDATA
24863 830 155 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 237 13 13 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 190 80 8 RAYA Telecom - Egypt
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
6389 3445 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1867 680 124 PaeTec Communications, Inc.
10620 1734 323 170 Types of queries are: POCs, o
7545 1639 303 86 TPG Internet Pty Ltd
17974 1635 503 35 PT Telekomunikasi Indonesia
8402 1634 480 15 Corbina telecom
28573 1626 1085 69 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 3258 3045 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1743 PaeTec Communications, Inc.
8402 1634 1619 Corbina telecom
17974 1635 1600 PT Telekomunikasi Indonesia
10620 1734 1564 Types of queries are: POCs, o
28573 1626 1557 Types of queries are: POCs, o
7545 1639 1553 TPG Internet Pty Ltd
22773 1496 1387 Cox Communications Inc.
4755 1513 1357 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
41.222.79.0/24 36938 >>UNKNOWN<<
62.61.220.0/24 24974 Tachyon Europe BV
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 /14:816 /15:1463 /16:12094 /17:6155 /18:10225
/19:20359 /20:27999 /21:28816 /22:39061 /23:36454 /24:204222
/25:11 /26:21 /27:20 /28:152 /29:135 /30:66
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2870 3258 Windstream Communications Inc
6389 2114 3445 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1629 1734 Types of queries are: POCs, o
8402 1613 1634 Corbina telecom
30036 1408 1449 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1063 1867 PaeTec Communications, Inc.
8452 1046 1243 TEDATA
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:495 2:449 4:14 5:1 6:3 8:377
12:1953 13:1 14:589 15:11 16:3 17:6
20:9 23:124 24:1722 27:1181 31:898 32:60
33:2 34:2 36:8 37:125 38:786 40:114
41:3156 42:92 44:3 46:1279 47:3 49:321
50:516 52:13 54:2 55:8 56:3 57:37
58:912 59:482 60:342 61:1086 62:928 63:1992
64:4122 65:2286 66:4412 67:2041 68:1165 69:3152
70:914 71:432 72:1795 74:2647 75:452 76:320
77:960 78:916 79:493 80:1208 81:875 82:567
83:531 84:584 85:1161 86:753 87:912 88:320
89:1536 90:227 91:4479 92:539 93:1541 94:1326
95:1121 96:413 97:310 98:800 99:38 100:20
101:129 103:703 106:3 107:142 108:136 109:1466
110:688 111:834 112:403 113:525 114:604 115:739
116:852 117:704 118:901 119:1234 120:356 121:647
122:1582 123:1063 124:1303 125:1313 128:499 129:181
130:209 131:587 132:154 133:21 134:223 135:59
136:212 137:149 138:285 139:144 140:463 141:259
142:360 143:391 144:504 145:70 146:481 147:228
148:686 149:271 150:161 151:194 152:444 153:170
154:6 155:414 156:208 157:335 158:156 159:438
160:327 161:226 162:338 163:179 164:528 165:395
166:563 167:456 168:758 169:146 170:834 171:116
172:4 173:1779 174:582 175:414 176:458 177:469
178:1242 180:1172 181:45 182:691 183:277 184:430
185:1 186:2018 187:838 188:1023 189:1173 190:5432
192:5937 193:5487 194:4219 195:3390 196:1274 197:180
198:3564 199:4316 200:5604 201:1719 202:8197 203:8500
204:4271 205:2418 206:2658 207:2746 208:4052 209:3531
210:2670 211:1447 212:1972 213:1832 214:848 215:91
216:4957 217:1471 218:541 219:335 220:1222 221:542
222:294 223:258
End of report
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