Routing Table Report 08:00 +10GMT Mon 02 Jan, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 382439
Prefixes after maximum aggregation: 166440
Deaggregation factor: 2.30
Unique aggregates announced to Internet: 190196
Total ASes present in the Internet Routing Table: 37763
Prefixes per ASN: 10.13
Origin-only ASes present in the Internet Routing Table: 32553
Origin ASes announcing only one prefix: 15539
Transit ASes present in the Internet Routing Table: 5210
Transit-only ASes present in the Internet Routing Table: 122
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: 2750
Unregistered ASNs in the Routing Table: 1100
Number of 32-bit ASNs allocated by the RIRs: 2153
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4319
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 115
Number of addresses announced to Internet: 2522520576
Equivalent to 150 /8s, 90 /16s and 156 /24s
Percentage of available address space announced: 68.1
Percentage of allocated address space announced: 68.1
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 91.8
Total number of prefixes smaller than registry allocations: 160339
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 91255
Total APNIC prefixes after maximum aggregation: 30051
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 88597
Unique aggregates announced from the APNIC address blocks: 38828
APNIC Region origin ASes present in the Internet Routing Table: 4570
APNIC Prefixes per ASN: 19.39
APNIC Region origin ASes announcing only one prefix: 1267
APNIC Region transit ASes present in the Internet Routing Table: 698
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: 632493056
Equivalent to 37 /8s, 179 /16s and 20 /24s
Percentage of available APNIC address space announced: 80.2
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: 145486
Total ARIN prefixes after maximum aggregation: 74495
ARIN Deaggregation factor: 1.95
Prefixes being announced from the ARIN address blocks: 117885
Unique aggregates announced from the ARIN address blocks: 48885
ARIN Region origin ASes present in the Internet Routing Table: 14757
ARIN Prefixes per ASN: 7.99
ARIN Region origin ASes announcing only one prefix: 5665
ARIN Region transit ASes present in the Internet Routing Table: 1492
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: 804668416
Equivalent to 47 /8s, 246 /16s and 68 /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: 95673
Total RIPE prefixes after maximum aggregation: 51810
RIPE Deaggregation factor: 1.85
Prefixes being announced from the RIPE address blocks: 87689
Unique aggregates announced from the RIPE address blocks: 55482
RIPE Region origin ASes present in the Internet Routing Table: 16222
RIPE Prefixes per ASN: 5.41
RIPE Region origin ASes announcing only one prefix: 7994
RIPE Region transit ASes present in the Internet Routing Table: 2561
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: 495335680
Equivalent to 29 /8s, 134 /16s and 57 /24s
Percentage of available RIPE address space announced: 79.8
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: 36410
Total LACNIC prefixes after maximum aggregation: 7939
LACNIC Deaggregation factor: 4.59
Prefixes being announced from the LACNIC address blocks: 36130
Unique aggregates announced from the LACNIC address blocks: 19047
LACNIC Region origin ASes present in the Internet Routing Table: 1548
LACNIC Prefixes per ASN: 23.34
LACNIC Region origin ASes announcing only one prefix: 454
LACNIC Region transit ASes present in the Internet Routing Table: 274
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: 95112704
Equivalent to 5 /8s, 171 /16s and 78 /24s
Percentage of available LACNIC address space announced: 63.0
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: 8597
Total AfriNIC prefixes after maximum aggregation: 2073
AfriNIC Deaggregation factor: 4.15
Prefixes being announced from the AfriNIC address blocks: 6653
Unique aggregates announced from the AfriNIC address blocks: 2083
AfriNIC Region origin ASes present in the Internet Routing Table: 503
AfriNIC Prefixes per ASN: 13.23
AfriNIC Region origin ASes announcing only one prefix: 159
AfriNIC Region transit ASes present in the Internet Routing Table: 115
Average AfriNIC Region AS path length visible: 3.4
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: 30877184
Equivalent to 1 /8s, 215 /16s and 38 /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 1916 11098 661 Korea Telecom (KIX)
17974 1628 503 37 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4755 1499 385 157 TATA Communications formerly
9583 1172 87 524 Sify Limited
9829 1170 989 28 National Internet Backbone
7552 1103 1062 11 Vietel Corporation
24560 1004 383 163 Bharti Airtel Ltd., Telemedia
18101 976 131 157 Reliance Infocom Ltd Internet
4808 956 1945 273 CNCGROUP IP network China169
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 3475 3814 217 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2095 383 177 Covad Communications Co.
1785 1864 680 121 PaeTec Communications, Inc.
4323 1623 1081 386 tw telecom holdings, inc.
20115 1615 1551 619 Charter Communications
22773 1516 2909 107 Cox Communications Inc.
30036 1476 262 690 Mediacom Communications Corp
19262 1388 4683 401 Verizon Online LLC
7018 1314 7047 867 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 1379 480 15 Corbina telecom
15557 1092 2161 64 NEUF CEGETEL (formerly LDCOM
2118 672 99 14 EUnet/RELCOM Autonomous Syste
6830 642 1928 413 UPC Broadband
34984 634 132 197 BILISIM TELEKOM
12479 552 636 53 France Telecom Espana SA
20940 547 176 440 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 531 8162 397 Deutsche Telekom AG
8551 519 360 80 Bezeq International
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 1721 319 159 Types of queries are: POCs, o
28573 1563 1064 76 Types of queries are: POCs, o
8151 1313 2962 345 Uninet S.A. de C.V.
7303 1252 755 176 Telecom Argentina S.A.
27947 611 73 95 Telconet S.A
22047 582 322 17 Types of queries are: POCs, o
3816 551 237 91 Types of queries are: POCs, o
7738 551 1050 31 Telecomunicacoes da Bahia S.A
11172 531 102 98 Alestra, S. de R.L. de C.V.
6503 527 434 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 1039 958 13 TEDATA
24863 790 146 33 LINKdotNET AS number
3741 280 939 229 The Internet Solution
6713 250 649 18 Itissalat Al-MAGHRIB
15706 242 32 6 Sudatel Internet Exchange Aut
33776 240 13 8 Starcomms Nigeria Limited
29571 216 17 13 Ci Telecom Autonomous system
12258 196 28 61 Vodacom Internet Company
24835 189 80 8 RAYA Telecom - Egypt
36923 180 20 4 Swift Networks Limited
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 3475 3814 217 BellSouth.net Inc.
7029 2950 1042 213 Windstream Communications Inc
18566 2095 383 177 Covad Communications Co.
4766 1916 11098 661 Korea Telecom (KIX)
1785 1864 680 121 PaeTec Communications, Inc.
10620 1721 319 159 Types of queries are: POCs, o
17974 1628 503 37 PT Telekomunikasi Indonesia
7545 1626 303 86 TPG Internet Pty Ltd
4323 1623 1081 386 tw telecom holdings, inc.
20115 1615 1551 619 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 2950 2737 Windstream Communications Inc
18566 2095 1918 Covad Communications Co.
1785 1864 1743 PaeTec Communications, Inc.
17974 1628 1591 PT Telekomunikasi Indonesia
10620 1721 1562 Types of queries are: POCs, o
7545 1626 1540 TPG Internet Pty Ltd
28573 1563 1487 Types of queries are: POCs, o
22773 1516 1409 Cox Communications Inc.
8402 1379 1364 Corbina telecom
4755 1499 1342 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<<
41.223.92.0/22 36936 >>UNKNOWN<<
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 /11:81 /12:238
/13:465 /14:812 /15:1444 /16:12042 /17:6107 /18:10168
/19:20268 /20:27941 /21:28241 /22:38371 /23:35631 /24:200033
/25:11 /26:21 /27:20 /28:154 /29:132 /30:67
/31:0 /32:133
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2562 2950 Windstream Communications Inc
6389 2119 3475 BellSouth.net Inc.
18566 2044 2095 Covad Communications Co.
10620 1616 1721 Types of queries are: POCs, o
30036 1435 1476 Mediacom Communications Corp
8402 1358 1379 Corbina telecom
11492 1094 1129 CABLE ONE, INC.
1785 1064 1864 PaeTec Communications, Inc.
7011 1051 1168 Frontier Communications of Am
15557 1042 1092 NEUF CEGETEL (formerly LDCOM
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:480 2:379 4:15 5:1 6:3 8:366
12:1945 13:1 14:568 15:11 16:3 17:7
20:9 23:81 24:1707 27:1123 31:827 32:62
33:2 34:2 36:4 37:10 38:784 40:114
41:3025 42:83 44:3 46:1152 47:3 49:296
50:472 52:13 55:4 56:2 57:37 58:884
59:480 60:340 61:1071 62:940 63:1965 64:4095
65:2302 66:4359 67:1982 68:1165 69:3136 70:923
71:410 72:1783 74:2645 75:431 76:320 77:922
78:863 79:493 80:1189 81:848 82:534 83:532
84:576 85:1166 86:753 87:911 88:358 89:1580
90:260 91:4398 92:534 93:1496 94:1343 95:1012
96:392 97:288 98:776 99:38 100:18 101:126
103:580 106:10 107:120 108:100 109:1420 110:676
111:829 112:419 113:507 114:591 115:689 116:854
117:701 118:899 119:1211 120:364 121:645 122:1581
123:1029 124:1297 125:1300 128:464 129:181 130:183
131:584 132:155 133:21 134:216 135:54 136:204
137:147 138:285 139:125 140:464 141:256 142:364
143:386 144:497 145:67 146:471 147:222 148:611
149:270 150:158 151:192 152:441 153:169 154:6
155:397 156:207 157:334 158:155 159:433 160:343
161:204 162:332 163:178 164:517 165:395 166:544
167:455 168:808 169:145 170:829 171:95 172:4
173:1783 174:592 175:409 176:317 177:447 178:1146
180:1210 181:43 182:668 183:260 184:422 185:1
186:1470 187:800 188:1007 189:1176 190:5326 192:5938
193:5442 194:3792 195:3192 196:1271 197:175 198:3568
199:4199 200:5465 201:1676 202:8300 203:8434 204:4262
205:2403 206:2600 207:2732 208:3998 209:3509 210:2682
211:1445 212:1983 213:1815 214:804 215:93 216:4882
217:1474 218:559 219:333 220:1220 221:540 222:297
223:252
End of report
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