Routing Table Report 08:00 +10GMT Fri 03 Feb, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 389376
Prefixes after maximum aggregation: 167385
Deaggregation factor: 2.33
Unique aggregates announced to Internet: 191939
Total ASes present in the Internet Routing Table: 37912
Prefixes per ASN: 10.27
Origin-only ASes present in the Internet Routing Table: 32661
Origin ASes announcing only one prefix: 15529
Transit ASes present in the Internet Routing Table: 5251
Transit-only ASes present in the Internet Routing Table: 126
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 28
Max AS path prepend of ASN (36992) 22
Prefixes from unregistered ASNs in the Routing Table: 1059
Unregistered ASNs in the Routing Table: 184
Number of 32-bit ASNs allocated by the RIRs: 2256
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4643
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 118
Number of addresses announced to Internet: 2529549568
Equivalent to 150 /8s, 197 /16s and 221 /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: 163917
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92070
Total APNIC prefixes after maximum aggregation: 30141
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 89368
Unique aggregates announced from the APNIC address blocks: 39066
APNIC Region origin ASes present in the Internet Routing Table: 4589
APNIC Prefixes per ASN: 19.47
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 702
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: 635527168
Equivalent to 37 /8s, 225 /16s and 96 /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: 146865
Total ARIN prefixes after maximum aggregation: 74901
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119085
Unique aggregates announced from the ARIN address blocks: 49277
ARIN Region origin ASes present in the Internet Routing Table: 14811
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: 1495
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 19
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 804188672
Equivalent to 47 /8s, 238 /16s and 242 /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: 98429
Total RIPE prefixes after maximum aggregation: 52229
RIPE Deaggregation factor: 1.88
Prefixes being announced from the RIPE address blocks: 90284
Unique aggregates announced from the RIPE address blocks: 55959
RIPE Region origin ASes present in the Internet Routing Table: 16279
RIPE Prefixes per ASN: 5.55
RIPE Region origin ASes announcing only one prefix: 7999
RIPE Region transit ASes present in the Internet Routing Table: 2581
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 28
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 498586880
Equivalent to 29 /8s, 183 /16s and 213 /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: 37642
Total LACNIC prefixes after maximum aggregation: 7960
LACNIC Deaggregation factor: 4.73
Prefixes being announced from the LACNIC address blocks: 37412
Unique aggregates announced from the LACNIC address blocks: 19477
LACNIC Region origin ASes present in the Internet Routing Table: 1559
LACNIC Prefixes per ASN: 24.00
LACNIC Region origin ASes announcing only one prefix: 444
LACNIC Region transit ASes present in the Internet Routing Table: 285
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: 95930112
Equivalent to 5 /8s, 183 /16s and 199 /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: 9025
Total AfriNIC prefixes after maximum aggregation: 2082
AfriNIC Deaggregation factor: 4.33
Prefixes being announced from the AfriNIC address blocks: 7053
Unique aggregates announced from the AfriNIC address blocks: 2140
AfriNIC Region origin ASes present in the Internet Routing Table: 506
AfriNIC Prefixes per ASN: 13.94
AfriNIC Region origin ASes announcing only one prefix: 160
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: 30864384
Equivalent to 1 /8s, 214 /16s and 244 /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 1642 303 88 TPG Internet Pty Ltd
17974 1635 503 35 PT Telekomunikasi Indonesia
4755 1515 385 157 TATA Communications formerly
9829 1168 989 28 National Internet Backbone
9583 1120 82 483 Sify Limited
7552 1095 1062 11 Vietel Corporation
24560 1014 385 167 Bharti Airtel Ltd., Telemedia
4808 983 1947 278 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
6389 3445 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
1785 1867 680 124 PaeTec Communications, Inc.
20115 1626 1552 627 Charter Communications
4323 1608 1078 384 tw telecom holdings, inc.
22773 1497 2910 109 Cox Communications Inc.
30036 1452 255 737 Mediacom Communications Corp
19262 1385 4683 400 Verizon Online LLC
7018 1314 7042 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 1617 480 15 Corbina telecom
2118 1391 99 14 EUnet/RELCOM Autonomous Syste
15557 1095 2161 64 NEUF CEGETEL (formerly LDCOM
6830 642 1927 412 UPC Broadband
34984 640 188 171 BILISIM TELEKOM
20940 595 194 468 Akamai Technologies European
8551 574 360 81 Bezeq International
12479 557 642 54 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 532 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 1617 1085 69 Types of queries are: POCs, o
8151 1315 2976 338 Uninet S.A. de C.V.
7303 1260 757 180 Telecom Argentina S.A.
26615 878 632 33 Tim Celular S.A.
11172 698 111 76 Alestra, S. de R.L. de C.V.
27947 627 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 1230 958 13 TEDATA
24863 831 155 40 LINKdotNET AS number
6713 485 649 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
29571 214 17 12 Ci Telecom Autonomous system
12258 197 28 62 Vodacom Internet Company
24835 193 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 3445 3807 202 BellSouth.net Inc.
7029 3258 1043 213 Windstream Communications Inc
18566 2094 382 177 Covad Communications Co.
4766 1912 11098 670 Korea Telecom (KIX)
1785 1867 680 124 PaeTec Communications, Inc.
10620 1735 323 170 Types of queries are: POCs, o
7545 1642 303 88 TPG Internet Pty Ltd
17974 1635 503 35 PT Telekomunikasi Indonesia
20115 1626 1552 627 Charter Communications
8402 1617 480 15 Corbina telecom
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 3258 3045 Windstream Communications Inc
18566 2094 1917 Covad Communications Co.
1785 1867 1743 PaeTec Communications, Inc.
8402 1617 1602 Corbina telecom
17974 1635 1600 PT Telekomunikasi Indonesia
10620 1735 1565 Types of queries are: POCs, o
7545 1642 1554 TPG Internet Pty Ltd
28573 1617 1548 Types of queries are: POCs, o
22773 1497 1388 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
37.77.152.0/21 44176 Jarsat s.c. Jaroslaw i Elzbie
41.222.79.0/24 36938 >>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 /11:80 /12:232
/13:458 /14:815 /15:1463 /16:12094 /17:6156 /18:10225
/19:20371 /20:28043 /21:28816 /22:39104 /23:36484 /24:204434
/25:11 /26:21 /27:19 /28:152 /29:134 /30:65
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 2870 3258 Windstream Communications Inc
6389 2114 3445 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1629 1735 Types of queries are: POCs, o
8402 1597 1617 Corbina telecom
30036 1411 1452 Mediacom Communications Corp
11492 1117 1154 CABLE ONE, INC.
1785 1063 1867 PaeTec Communications, Inc.
15557 1045 1095 NEUF CEGETEL (formerly LDCOM
8452 1034 1230 TEDATA
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:494 2:447 4:14 5:1 6:3 8:378
12:1953 13:1 14:591 15:11 16:3 17:6
20:9 23:124 24:1722 27:1181 31:895 32:60
33:2 34:2 36:8 37:161 38:785 40:114
41:3175 42:91 44:3 46:1276 47:3 49:321
50:518 52:13 54:2 55:8 56:3 57:37
58:912 59:481 60:342 61:1087 62:928 63:1992
64:4117 65:2285 66:4410 67:2041 68:1166 69:3146
70:915 71:410 72:1792 74:2645 75:452 76:322
77:959 78:911 79:494 80:1217 81:876 82:567
83:530 84:582 85:1159 86:752 87:910 88:340
89:1540 90:253 91:4472 92:539 93:1534 94:1335
95:1118 96:411 97:310 98:805 99:38 100:20
101:135 103:715 106:3 107:142 108:142 109:1462
110:686 111:834 112:412 113:524 114:596 115:739
116:845 117:700 118:901 119:1237 120:356 121:647
122:1570 123:1062 124:1298 125:1312 128:496 129:181
130:207 131:587 132:154 133:21 134:221 135:59
136:212 137:149 138:285 139:144 140:463 141:259
142:360 143:395 144:505 145:70 146:480 147:227
148:688 149:272 150:161 151:194 152:444 153:170
154:6 155:413 156:208 157:335 158:156 159:438
160:329 161:226 162:338 163:179 164:527 165:397
166:556 167:456 168:759 169:146 170:833 171:113
172:4 173:1771 174:592 175:414 176:468 177:471
178:1240 180:1174 181:64 182:692 183:269 184:430
185:1 186:2018 187:855 188:1031 189:1175 190:5418
192:5945 193:5526 194:4331 195:3386 196:1276 197:180
198:3563 199:4306 200:5607 201:1719 202:8196 203:8500
204:4265 205:2412 206:2661 207:2740 208:4047 209:3530
210:2672 211:1446 212:1990 213:1824 214:847 215:82
216:4961 217:1473 218:540 219:335 220:1222 221:542
222:297 223:259
End of report
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