Routing Table Report 08:00 +10GMT Thu 09 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 390297
Prefixes after maximum aggregation: 167480
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 192068
Total ASes present in the Internet Routing Table: 37967
Prefixes per ASN: 10.28
Origin-only ASes present in the Internet Routing Table: 32707
Origin ASes announcing only one prefix: 15553
Transit ASes present in the Internet Routing Table: 5260
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: 2269
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4662
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 119
Number of addresses announced to Internet: 2531405056
Equivalent to 150 /8s, 226 /16s and 45 /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: 164280
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92393
Total APNIC prefixes after maximum aggregation: 30211
APNIC Deaggregation factor: 3.06
Prefixes being announced from the APNIC address blocks: 89693
Unique aggregates announced from the APNIC address blocks: 39188
APNIC Region origin ASes present in the Internet Routing Table: 4595
APNIC Prefixes per ASN: 19.52
APNIC Region origin ASes announcing only one prefix: 1256
APNIC Region transit ASes present in the Internet Routing Table: 706
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: 635580416
Equivalent to 37 /8s, 226 /16s and 48 /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: 146891
Total ARIN prefixes after maximum aggregation: 74821
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119101
Unique aggregates announced from the ARIN address blocks: 49358
ARIN Region origin ASes present in the Internet Routing Table: 14830
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5683
ARIN Region transit ASes present in the Internet Routing Table: 1496
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: 804429824
Equivalent to 47 /8s, 242 /16s and 160 /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: 98922
Total RIPE prefixes after maximum aggregation: 52310
RIPE Deaggregation factor: 1.89
Prefixes being announced from the RIPE address blocks: 90738
Unique aggregates announced from the RIPE address blocks: 55978
RIPE Region origin ASes present in the Internet Routing Table: 16302
RIPE Prefixes per ASN: 5.57
RIPE Region origin ASes announcing only one prefix: 8011
RIPE Region transit ASes present in the Internet Routing Table: 2590
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: 500809984
Equivalent to 29 /8s, 217 /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: 37757
Total LACNIC prefixes after maximum aggregation: 7979
LACNIC Deaggregation factor: 4.73
Prefixes being announced from the LACNIC address blocks: 37523
Unique aggregates announced from the LACNIC address blocks: 19405
LACNIC Region origin ASes present in the Internet Routing Table: 1561
LACNIC Prefixes per ASN: 24.04
LACNIC Region origin ASes announcing only one prefix: 441
LACNIC Region transit ASes present in the Internet Routing Table: 283
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: 96473344
Equivalent to 5 /8s, 192 /16s and 17 /24s
Percentage of available LACNIC address space announced: 63.9
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: 8976
Total AfriNIC prefixes after maximum aggregation: 2085
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 7017
Unique aggregates announced from the AfriNIC address blocks: 2150
AfriNIC Region origin ASes present in the Internet Routing Table: 509
AfriNIC Prefixes per ASN: 13.79
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 115
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: 30875392
Equivalent to 1 /8s, 215 /16s and 31 /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 1668 503 36 PT Telekomunikasi Indonesia
7545 1639 303 85 TPG Internet Pty Ltd
4755 1518 385 157 TATA Communications formerly
9829 1172 989 28 National Internet Backbone
9583 1124 83 483 Sify Limited
7552 1080 1062 11 Vietel Corporation
24560 1012 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
6389 3442 3807 204 BellSouth.net Inc.
7029 3422 1040 172 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1869 680 124 PaeTec Communications, Inc.
20115 1624 1550 631 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1501 2910 109 Cox Communications Inc.
30036 1401 245 748 Mediacom Communications Corp
19262 1384 4683 400 Verizon Online LLC
7018 1318 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 1616 480 15 Corbina telecom
2118 1385 97 13 EUnet/RELCOM Autonomous Syste
15557 1095 2161 63 NEUF CEGETEL (formerly LDCOM
34984 647 188 171 BILISIM TELEKOM
6830 643 1927 413 UPC Broadband
20940 599 195 469 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 1653 1085 69 Types of queries are: POCs, o
8151 1331 2992 336 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 1233 958 13 TEDATA
24863 826 155 40 LINKdotNET AS number
6713 485 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
15706 238 32 6 Sudatel Internet Exchange Aut
33776 230 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
6389 3442 3807 204 BellSouth.net Inc.
7029 3422 1040 172 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1869 680 124 PaeTec Communications, Inc.
10620 1735 323 170 Types of queries are: POCs, o
17974 1668 503 36 PT Telekomunikasi Indonesia
28573 1653 1085 69 Types of queries are: POCs, o
7545 1639 303 85 TPG Internet Pty Ltd
20115 1624 1550 631 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
7029 3422 3250 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1869 1745 PaeTec Communications, Inc.
17974 1668 1632 PT Telekomunikasi Indonesia
8402 1616 1601 Corbina telecom
28573 1653 1584 Types of queries are: POCs, o
10620 1735 1565 Types of queries are: POCs, o
7545 1639 1554 TPG Internet Pty Ltd
22773 1501 1392 Cox Communications Inc.
2118 1385 1372 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
37.98.200.0/21 56687 Nimad Rah Khoozestan PLC
37.110.128.0/19 42610 RIPE Network Coordination Cen
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 /15:1466 /16:12088 /17:6166 /18:10241
/19:20478 /20:28117 /21:28850 /22:39207 /23:36669 /24:204838
/25:11 /26:21 /27:20 /28:150 /29:129 /30:66
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3061 3422 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 1595 1616 Corbina telecom
30036 1360 1401 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1065 1869 PaeTec Communications, Inc.
15557 1045 1095 NEUF CEGETEL (formerly LDCOM
8452 1039 1233 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:498 2:452 4:14 5:1 6:3 8:384
12:1957 13:1 14:591 15:11 16:3 17:7
20:9 23:130 24:1718 27:1186 31:925 32:60
33:2 34:2 36:9 37:174 38:771 40:115
41:3182 42:92 44:3 46:1277 47:3 49:322
50:513 52:13 54:2 55:8 56:3 57:37
58:916 59:480 60:342 61:1087 62:934 63:2003
64:4112 65:2281 66:4409 67:2040 68:1173 69:3150
70:926 71:411 72:1794 74:2651 75:464 76:323
77:965 78:904 79:499 80:1223 81:882 82:570
83:528 84:582 85:1150 86:746 87:922 88:343
89:1550 90:276 91:4450 92:539 93:1500 94:1353
95:1122 96:412 97:310 98:805 99:38 100:4
101:140 103:759 106:9 107:148 108:149 109:1461
110:693 111:844 112:416 113:526 114:595 115:745
116:851 117:706 118:901 119:1233 120:359 121:648
122:1582 123:1066 124:1304 125:1313 128:486 129:180
130:207 131:586 132:163 133:21 134:221 135:60
136:213 137:150 138:285 139:144 140:461 141:260
142:367 143:409 144:517 145:69 146:479 147:243
148:707 149:273 150:163 151:196 152:446 153:170
154:6 155:414 156:208 157:335 158:156 159:440
160:320 161:226 162:338 163:178 164:524 165:394
166:555 167:457 168:755 169:146 170:833 171:111
172:2 173:1737 174:585 175:413 176:472 177:480
178:1235 180:1184 181:65 182:699 183:276 184:424
185:1 186:2048 187:843 188:1037 189:1174 190:5441
192:5936 193:5527 194:4323 195:3378 196:1274 197:181
198:3569 199:4330 200:5601 201:1699 202:8200 203:8526
204:4258 205:2418 206:2643 207:2732 208:4045 209:3529
210:2676 211:1449 212:2035 213:1841 214:860 215:94
216:4963 217:1468 218:538 219:336 220:1219 221:543
222:298 223:266
End of report