Routing Table Report 08:00 +10GMT Wed 18 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 385319
Prefixes after maximum aggregation: 166822
Deaggregation factor: 2.31
Unique aggregates announced to Internet: 191065
Total ASes present in the Internet Routing Table: 37848
Prefixes per ASN: 10.18
Origin-only ASes present in the Internet Routing Table: 32611
Origin ASes announcing only one prefix: 15548
Transit ASes present in the Internet Routing Table: 5237
Transit-only ASes present in the Internet Routing Table: 128
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: 2873
Unregistered ASNs in the Routing Table: 1138
Number of 32-bit ASNs allocated by the RIRs: 2192
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4484
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 122
Number of addresses announced to Internet: 2527216896
Equivalent to 150 /8s, 162 /16s and 69 /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: 161608
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91698
Total APNIC prefixes after maximum aggregation: 30071
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89050
Unique aggregates announced from the APNIC address blocks: 38963
APNIC Region origin ASes present in the Internet Routing Table: 4584
APNIC Prefixes per ASN: 19.43
APNIC Region origin ASes announcing only one prefix: 1265
APNIC Region transit ASes present in the Internet Routing Table: 704
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: 634481920
Equivalent to 37 /8s, 209 /16s and 109 /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: 146252
Total ARIN prefixes after maximum aggregation: 74706
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 118472
Unique aggregates announced from the ARIN address blocks: 49126
ARIN Region origin ASes present in the Internet Routing Table: 14787
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5672
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: 804405760
Equivalent to 47 /8s, 242 /16s and 66 /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: 97031
Total RIPE prefixes after maximum aggregation: 51948
RIPE Deaggregation factor: 1.87
Prefixes being announced from the RIPE address blocks: 88952
Unique aggregates announced from the RIPE address blocks: 55673
RIPE Region origin ASes present in the Internet Routing Table: 16250
RIPE Prefixes per ASN: 5.47
RIPE Region origin ASes announcing only one prefix: 8001
RIPE Region transit ASes present in the Internet Routing Table: 2570
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 24
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 497567744
Equivalent to 29 /8s, 168 /16s and 72 /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: 36590
Total LACNIC prefixes after maximum aggregation: 7951
LACNIC Deaggregation factor: 4.60
Prefixes being announced from the LACNIC address blocks: 36371
Unique aggregates announced from the LACNIC address blocks: 19268
LACNIC Region origin ASes present in the Internet Routing Table: 1551
LACNIC Prefixes per ASN: 23.45
LACNIC Region origin ASes announcing only one prefix: 449
LACNIC Region transit ASes present in the Internet Routing Table: 275
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 18
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 95396352
Equivalent to 5 /8s, 175 /16s and 162 /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: 8555
Total AfriNIC prefixes after maximum aggregation: 2075
AfriNIC Deaggregation factor: 4.12
Prefixes being announced from the AfriNIC address blocks: 6584
Unique aggregates announced from the AfriNIC address blocks: 2094
AfriNIC Region origin ASes present in the Internet Routing Table: 507
AfriNIC Prefixes per ASN: 12.99
AfriNIC Region origin ASes announcing only one prefix: 161
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 30828288
Equivalent to 1 /8s, 214 /16s and 103 /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 1907 11097 661 Korea Telecom (KIX)
17974 1636 503 36 PT Telekomunikasi Indonesia
7545 1623 303 86 TPG Internet Pty Ltd
4755 1503 385 156 TATA Communications formerly
9829 1162 989 28 National Internet Backbone
9583 1119 81 490 Sify Limited
7552 1118 1062 11 Vietel Corporation
24560 1011 384 167 Bharti Airtel Ltd., Telemedia
4808 982 1947 277 CNCGROUP IP network China169
18101 946 131 155 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 3458 3807 206 BellSouth.net Inc.
7029 3254 1042 212 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1868 680 122 PaeTec Communications, Inc.
20115 1617 1552 619 Charter Communications
4323 1604 1078 383 tw telecom holdings, inc.
22773 1516 2909 108 Cox Communications Inc.
30036 1482 265 697 Mediacom Communications Corp
19262 1387 4683 401 Verizon Online LLC
7018 1305 7042 855 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 1594 480 15 Corbina telecom
15557 1096 2161 64 NEUF CEGETEL (formerly LDCOM
2118 927 99 14 EUnet/RELCOM Autonomous Syste
6830 644 1928 413 UPC Broadband
34984 636 187 170 BILISIM TELEKOM
31148 612 35 9 FreeNet ISP
8551 573 360 81 Bezeq International
20940 571 184 455 Akamai Technologies European
12479 549 637 53 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
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 1719 320 166 Types of queries are: POCs, o
28573 1594 1068 77 Types of queries are: POCs, o
8151 1318 2980 336 Uninet S.A. de C.V.
7303 1254 756 179 Telecom Argentina S.A.
27947 612 73 95 Telconet S.A
22047 582 322 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 530 101 107 Alestra, S. de R.L. de C.V.
6503 529 434 68 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 793 146 33 LINKdotNET AS number
6713 381 649 18 Itissalat Al-MAGHRIB
3741 280 939 229 The Internet Solution
15706 239 32 6 Sudatel Internet Exchange Aut
33776 224 12 16 Starcomms Nigeria Limited
29571 214 17 12 Ci Telecom Autonomous system
12258 196 28 61 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 3458 3807 206 BellSouth.net Inc.
7029 3254 1042 212 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1907 11097 661 Korea Telecom (KIX)
1785 1868 680 122 PaeTec Communications, Inc.
10620 1719 320 166 Types of queries are: POCs, o
17974 1636 503 36 PT Telekomunikasi Indonesia
7545 1623 303 86 TPG Internet Pty Ltd
20115 1617 1552 619 Charter Communications
4323 1604 1078 383 tw telecom holdings, inc.
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 3042 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1868 1746 PaeTec Communications, Inc.
17974 1636 1600 PT Telekomunikasi Indonesia
8402 1594 1579 Corbina telecom
10620 1719 1553 Types of queries are: POCs, o
7545 1623 1537 TPG Internet Pty Ltd
28573 1594 1517 Types of queries are: POCs, o
22773 1516 1408 Cox Communications Inc.
4755 1503 1347 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
37.58.0.0/20 5610 Telefonica o2 Czech Republic,
37.58.32.0/21 24923 South-East Transtelecom Joint
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 /14:814 /15:1457 /16:12072 /17:6134 /18:10152
/19:20297 /20:27995 /21:28623 /22:38597 /23:36098 /24:201701
/25:11 /26:21 /27:20 /28:154 /29:135 /30:67
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2859 3254 Windstream Communications Inc
6389 2119 3458 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1614 1719 Types of queries are: POCs, o
8402 1573 1594 Corbina telecom
30036 1439 1482 Mediacom Communications Corp
11492 1116 1153 CABLE ONE, INC.
1785 1067 1868 PaeTec Communications, Inc.
15557 1046 1096 NEUF CEGETEL (formerly LDCOM
7011 1033 1150 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:503 2:446 4:15 5:1 6:3 8:368
12:1948 13:1 14:566 15:11 16:3 17:6
20:9 23:108 24:1709 27:1163 31:858 32:62
33:2 34:2 36:8 37:95 38:788 40:114
41:2890 42:87 44:3 46:1225 47:2 49:317
50:513 52:13 55:6 56:2 57:37 58:900
59:482 60:332 61:1079 62:944 63:1959 64:4079
65:2289 66:4371 67:2000 68:1154 69:3141 70:918
71:414 72:1803 74:2643 75:445 76:318 77:951
78:893 79:489 80:1188 81:862 82:566 83:530
84:586 85:1152 86:748 87:910 88:351 89:1581
90:258 91:4429 92:532 93:1537 94:1353 95:1077
96:390 97:299 98:791 99:38 100:18 101:134
103:636 106:9 107:133 108:124 109:1437 110:688
111:824 112:407 113:524 114:610 115:737 116:843
117:710 118:902 119:1230 120:349 121:645 122:1579
123:1047 124:1304 125:1304 128:480 129:184 130:198
131:584 132:154 133:21 134:223 135:59 136:211
137:148 138:288 139:143 140:465 141:259 142:361
143:392 144:506 145:68 146:479 147:224 148:613
149:278 150:159 151:193 152:444 153:170 154:6
155:411 156:207 157:336 158:155 159:438 160:319
161:204 162:334 163:178 164:525 165:393 166:562
167:456 168:847 169:145 170:827 171:105 172:4
173:1777 174:586 175:421 176:348 177:449 178:1183
180:1208 181:43 182:684 183:271 184:433 185:1
186:1497 187:833 188:980 189:1154 190:5307 192:5953
193:5472 194:3961 195:3311 196:1266 197:167 198:3575
199:4274 200:5530 201:1694 202:8187 203:8499 204:4269
205:2407 206:2657 207:2732 208:4005 209:3527 210:2670
211:1450 212:1986 213:1819 214:843 215:93 216:4906
217:1470 218:545 219:333 220:1214 221:543 222:297
223:255
End of report
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