Routing Table Report 08:00 +10GMT Mon 20 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 391564
Prefixes after maximum aggregation: 167838
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 192597
Total ASes present in the Internet Routing Table: 38007
Prefixes per ASN: 10.30
Origin-only ASes present in the Internet Routing Table: 32750
Origin ASes announcing only one prefix: 15536
Transit ASes present in the Internet Routing Table: 5257
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: 1123
Unregistered ASNs in the Routing Table: 189
Number of 32-bit ASNs allocated by the RIRs: 2284
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4789
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 240
Number of addresses announced to Internet: 2533774336
Equivalent to 151 /8s, 6 /16s and 84 /24s
Percentage of available address space announced: 68.4
Percentage of allocated address space announced: 68.4
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: 164972
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92565
Total APNIC prefixes after maximum aggregation: 30322
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89881
Unique aggregates announced from the APNIC address blocks: 39199
APNIC Region origin ASes present in the Internet Routing Table: 4607
APNIC Prefixes per ASN: 19.51
APNIC Region origin ASes announcing only one prefix: 1255
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: 636020480
Equivalent to 37 /8s, 232 /16s and 231 /24s
Percentage of available APNIC address space announced: 80.7
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: 147101
Total ARIN prefixes after maximum aggregation: 74857
ARIN Deaggregation factor: 1.97
Prefixes being announced from the ARIN address blocks: 119265
Unique aggregates announced from the ARIN address blocks: 49478
ARIN Region origin ASes present in the Internet Routing Table: 14835
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5664
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: 805232640
Equivalent to 47 /8s, 254 /16s and 224 /24s
Percentage of available ARIN address space announced: 64.0
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: 99544
Total RIPE prefixes after maximum aggregation: 52493
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 91217
Unique aggregates announced from the RIPE address blocks: 56105
RIPE Region origin ASes present in the Internet Routing Table: 16308
RIPE Prefixes per ASN: 5.59
RIPE Region origin ASes announcing only one prefix: 8012
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: 501119488
Equivalent to 29 /8s, 222 /16s and 122 /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: 37928
Total LACNIC prefixes after maximum aggregation: 7988
LACNIC Deaggregation factor: 4.75
Prefixes being announced from the LACNIC address blocks: 37769
Unique aggregates announced from the LACNIC address blocks: 19535
LACNIC Region origin ASes present in the Internet Routing Table: 1563
LACNIC Prefixes per ASN: 24.16
LACNIC Region origin ASes announcing only one prefix: 445
LACNIC Region transit ASes present in the Internet Routing Table: 284
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: 96625152
Equivalent to 5 /8s, 194 /16s and 98 /24s
Percentage of available LACNIC address space announced: 64.0
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: 8915
Total AfriNIC prefixes after maximum aggregation: 2092
AfriNIC Deaggregation factor: 4.26
Prefixes being announced from the AfriNIC address blocks: 6961
Unique aggregates announced from the AfriNIC address blocks: 2171
AfriNIC Region origin ASes present in the Internet Routing Table: 513
AfriNIC Prefixes per ASN: 13.57
AfriNIC Region origin ASes announcing only one prefix: 160
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: 30964736
Equivalent to 1 /8s, 216 /16s and 124 /24s
Percentage of available AfriNIC address space announced: 46.1
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 1923 11104 677 Korea Telecom (KIX)
17974 1644 501 36 PT Telekomunikasi Indonesia
7545 1638 303 85 TPG Internet Pty Ltd
4755 1534 386 161 TATA Communications formerly
9829 1159 997 29 National Internet Backbone
9583 1125 84 483 Sify Limited
7552 1087 1062 11 Vietel Corporation
24560 1018 385 167 Bharti Airtel Ltd., Telemedia
4808 976 1947 277 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 3442 1040 172 Windstream Communications Inc
6389 3439 3807 202 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1873 680 125 PaeTec Communications, Inc.
20115 1626 1550 630 Charter Communications
4323 1604 1059 380 tw telecom holdings, inc.
22773 1526 2910 110 Cox Communications Inc.
30036 1404 251 747 Mediacom Communications Corp
19262 1387 4703 397 Verizon Online LLC
7018 1313 7013 854 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 1702 480 15 Corbina telecom
2118 1399 97 13 EUnet/RELCOM Autonomous Syste
15557 1098 2184 60 NEUF CEGETEL (formerly LDCOM
34984 652 188 172 BILISIM TELEKOM
6830 644 1927 413 UPC Broadband
20940 607 197 472 Akamai Technologies European
12479 601 643 54 France Telecom Espana SA
8551 576 360 81 Bezeq International
9116 541 326 32 Goldenlines main autonomous s
31148 538 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 1744 323 172 Types of queries are: POCs, o
28573 1669 1085 65 Types of queries are: POCs, o
8151 1338 2988 344 Uninet S.A. de C.V.
7303 1264 758 183 Telecom Argentina S.A.
26615 815 668 34 Tim Celular S.A.
27947 638 67 108 Telconet S.A
11172 633 107 74 Alestra, S. de R.L. de C.V.
22047 581 322 17 Types of queries are: POCs, o
3816 554 238 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 828 155 41 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 278 939 229 The Internet Solution
33776 237 13 14 Starcomms Nigeria Limited
15706 222 32 6 Sudatel Internet Exchange Aut
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 194 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
7029 3442 1040 172 Windstream Communications Inc
6389 3439 3807 202 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1923 11104 677 Korea Telecom (KIX)
1785 1873 680 125 PaeTec Communications, Inc.
10620 1744 323 172 Types of queries are: POCs, o
8402 1702 480 15 Corbina telecom
28573 1669 1085 65 Types of queries are: POCs, o
17974 1644 501 36 PT Telekomunikasi Indonesia
7545 1638 303 85 TPG Internet Pty Ltd
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 3439 3237 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1873 1748 PaeTec Communications, Inc.
8402 1702 1687 Corbina telecom
17974 1644 1608 PT Telekomunikasi Indonesia
28573 1669 1604 Types of queries are: POCs, o
10620 1744 1572 Types of queries are: POCs, o
7545 1638 1553 TPG Internet Pty Ltd
22773 1526 1416 Cox Communications Inc.
2118 1399 1386 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
23.27.0.0/16 18779 Guru.com
27.112.114.0/24 23884 Proimage Engineering and Comm
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 /14:811 /15:1471 /16:12089 /17:6194 /18:10293
/19:20476 /20:28173 /21:28928 /22:39376 /23:36758 /24:205615
/25:11 /26:21 /27:20 /28:153 /29:138 /30:67
/31:0 /32:141
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3081 3442 Windstream Communications Inc
6389 2108 3439 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1681 1702 Corbina telecom
10620 1641 1744 Types of queries are: POCs, o
30036 1355 1404 Mediacom Communications Corp
11492 1118 1155 CABLE ONE, INC.
1785 1064 1873 PaeTec Communications, Inc.
15557 1045 1098 NEUF CEGETEL (formerly LDCOM
8452 1043 1233 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:504 2:692 4:14 5:1 6:3 8:385
12:1958 13:1 14:596 15:11 16:3 17:7
20:8 23:135 24:1727 27:1188 31:933 32:60
33:2 34:2 36:9 37:186 38:775 40:115
41:3133 42:96 44:3 46:1303 47:3 49:331
50:502 52:13 54:2 55:10 56:3 57:35
58:922 59:483 60:341 61:1085 62:948 63:2001
64:4110 65:2279 66:4439 67:2035 68:1173 69:3161
70:933 71:412 72:1793 74:2655 75:467 76:317
77:973 78:961 79:474 80:1210 81:878 82:622
83:522 84:583 85:1152 86:749 87:906 88:338
89:1553 90:282 91:4458 92:527 93:1342 94:1370
95:1091 96:414 97:312 98:784 99:38 100:4
101:146 103:792 106:64 107:157 108:168 109:1474
110:697 111:848 112:427 113:528 114:603 115:756
116:850 117:702 118:901 119:1242 120:361 121:654
122:1586 123:1078 124:1297 125:1312 128:503 129:182
130:210 131:571 132:162 133:21 134:224 135:62
136:213 137:179 138:288 139:144 140:461 141:262
142:376 143:398 144:503 145:69 146:479 147:237
148:712 149:301 150:156 151:198 152:444 153:170
154:6 155:414 156:210 157:336 158:160 159:439
160:319 161:227 162:339 163:177 164:527 165:390
166:558 167:457 168:757 169:146 170:837 171:114
172:4 173:1721 174:571 175:415 176:497 177:503
178:1274 180:1179 181:68 182:717 183:279 184:431
185:1 186:1973 187:860 188:1071 189:1178 190:5527
192:5943 193:5535 194:4338 195:3393 196:1262 197:166
198:3563 199:4349 200:5596 201:1736 202:8183 203:8533
204:4289 205:2413 206:2658 207:2707 208:4064 209:3533
210:2688 211:1452 212:2026 213:1841 214:850 215:85
216:4999 217:1488 218:536 219:335 220:1220 221:541
222:296 223:301
End of report