Routing Table Report 08:00 +10GMT Mon 06 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 389521
Prefixes after maximum aggregation: 167357
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191880
Total ASes present in the Internet Routing Table: 37931
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 32678
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5253
Transit-only ASes present in the Internet Routing Table: 130
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: 182
Number of 32-bit ASNs allocated by the RIRs: 2265
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: 115
Number of addresses announced to Internet: 2528552960
Equivalent to 150 /8s, 182 /16s and 168 /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: 163927
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92168
Total APNIC prefixes after maximum aggregation: 30183
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89458
Unique aggregates announced from the APNIC address blocks: 39158
APNIC Region origin ASes present in the Internet Routing Table: 4593
APNIC Prefixes per ASN: 19.48
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: 635505920
Equivalent to 37 /8s, 225 /16s and 13 /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: 146921
Total ARIN prefixes after maximum aggregation: 74819
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119185
Unique aggregates announced from the ARIN address blocks: 49246
ARIN Region origin ASes present in the Internet Routing Table: 14815
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5668
ARIN Region transit ASes present in the Internet Routing Table: 1501
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: 804382208
Equivalent to 47 /8s, 241 /16s and 230 /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: 98400
Total RIPE prefixes after maximum aggregation: 52266
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 90270
Unique aggregates announced from the RIPE address blocks: 55906
RIPE Region origin ASes present in the Internet Routing Table: 16286
RIPE Prefixes per ASN: 5.54
RIPE Region origin ASes announcing only one prefix: 8006
RIPE Region transit ASes present in the Internet Routing Table: 2579
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: 498670336
Equivalent to 29 /8s, 185 /16s and 27 /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: 37699
Total LACNIC prefixes after maximum aggregation: 7933
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37454
Unique aggregates announced from the LACNIC address blocks: 19460
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 24.06
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: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95943168
Equivalent to 5 /8s, 183 /16s and 250 /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: 8973
Total AfriNIC prefixes after maximum aggregation: 2084
AfriNIC Deaggregation factor: 4.31
Prefixes being announced from the AfriNIC address blocks: 7008
Unique aggregates announced from the AfriNIC address blocks: 2143
AfriNIC Region origin ASes present in the Internet Routing Table: 508
AfriNIC Prefixes per ASN: 13.80
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 114
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: 30866688
Equivalent to 1 /8s, 214 /16s and 253 /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 1640 303 86 TPG Internet Pty Ltd
17974 1638 503 36 PT Telekomunikasi Indonesia
4755 1514 385 157 TATA Communications formerly
9829 1158 989 28 National Internet Backbone
9583 1123 82 483 Sify Limited
7552 1095 1062 11 Vietel Corporation
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
4808 984 1947 279 CNCGROUP IP network China169
18101 952 131 156 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 3468 1043 213 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 1626 1552 627 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1498 2910 109 Cox Communications Inc.
30036 1421 249 749 Mediacom Communications Corp
19262 1384 4683 400 Verizon Online LLC
7018 1313 7040 859 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 1621 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
34984 646 188 171 BILISIM TELEKOM
6830 642 1927 412 UPC Broadband
20940 596 194 469 Akamai Technologies European
8551 573 360 81 Bezeq International
12479 557 642 54 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 536 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 1630 1085 69 Types of queries are: POCs, o
8151 1313 2976 335 Uninet S.A. de C.V.
7303 1260 757 180 Telecom Argentina S.A.
26615 821 616 33 Tim Celular S.A.
11172 699 111 76 Alestra, S. de R.L. de C.V.
27947 624 73 97 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 1215 958 13 TEDATA
24863 831 155 40 LINKdotNET AS number
6713 484 649 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
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 3468 1043 213 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
7545 1640 303 86 TPG Internet Pty Ltd
17974 1638 503 36 PT Telekomunikasi Indonesia
28573 1630 1085 69 Types of queries are: POCs, o
20115 1626 1552 627 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.
8402 1621 1606 Corbina telecom
17974 1638 1602 PT Telekomunikasi Indonesia
10620 1735 1565 Types of queries are: POCs, o
28573 1630 1561 Types of queries are: POCs, o
7545 1640 1554 TPG Internet Pty Ltd
22773 1498 1389 Cox Communications Inc.
2118 1391 1377 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
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 /12:231
/13:458 /14:815 /15:1463 /16:12095 /17:6160 /18:10232
/19:20379 /20:28057 /21:28790 /22:39049 /23:36588 /24:204527
/25:11 /26:21 /27:19 /28:153 /29:131 /30:65
/31:0 /32:138
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3076 3468 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 1600 1621 Corbina telecom
30036 1381 1421 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1064 1868 PaeTec Communications, Inc.
15557 1046 1096 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 2:459 4:14 5:1 6:3 8:380
12:1953 13:1 14:585 15:11 16:3 17:6
20:9 23:127 24:1721 27:1180 31:891 32:60
33:2 34:2 36:9 37:162 38:768 40:114
41:3165 42:91 44:3 46:1274 47:3 49:322
50:514 52:13 54:2 55:6 56:3 57:37
58:913 59:482 60:341 61:1085 62:929 63:1996
64:4128 65:2286 66:4423 67:2045 68:1172 69:3148
70:924 71:410 72:1792 74:2650 75:464 76:323
77:962 78:898 79:504 80:1219 81:865 82:568
83:537 84:581 85:1157 86:753 87:905 88:341
89:1540 90:253 91:4431 92:542 93:1542 94:1337
95:1114 96:412 97:310 98:804 99:38 100:4
101:138 103:738 106:9 107:143 108:145 109:1460
110:689 111:841 112:412 113:523 114:596 115:740
116:853 117:705 118:905 119:1225 120:360 121:651
122:1585 123:1067 124:1303 125:1312 128:490 129:181
130:208 131:586 132:163 133:21 134:221 135:59
136:212 137:149 138:285 139:144 140:461 141:260
142:360 143:396 144:505 145:70 146:477 147:228
148:699 149:273 150:161 151:195 152:445 153:170
154:6 155:406 156:208 157:335 158:156 159:440
160:328 161:226 162:338 163:172 164:528 165:395
166:556 167:456 168:759 169:146 170:831 171:108
172:2 173:1755 174:594 175:413 176:464 177:467
178:1248 180:1175 181:64 182:692 183:277 184:430
185:1 186:1962 187:844 188:1039 189:1177 190:5437
192:5935 193:5528 194:4333 195:3385 196:1278 197:180
198:3566 199:4324 200:5606 201:1729 202:8183 203:8512
204:4264 205:2419 206:2660 207:2745 208:4050 209:3545
210:2674 211:1446 212:1995 213:1833 214:851 215:92
216:4955 217:1471 218:539 219:336 220:1222 221:542
222:297 223:260
End of report