Routing Table Report 08:00 +10GMT Wed 14 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 394314
Prefixes after maximum aggregation: 168786
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 192613
Total ASes present in the Internet Routing Table: 38134
Prefixes per ASN: 10.34
Origin-only ASes present in the Internet Routing Table: 32876
Origin ASes announcing only one prefix: 15516
Transit ASes present in the Internet Routing Table: 5258
Transit-only ASes present in the Internet Routing Table: 129
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1279
Unregistered ASNs in the Routing Table: 270
Number of 32-bit ASNs allocated by the RIRs: 2318
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 4991
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 620
Number of addresses announced to Internet: 2544048640
Equivalent to 151 /8s, 163 /16s and 26 /24s
Percentage of available address space announced: 68.6
Percentage of allocated address space announced: 68.6
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.1
Total number of prefixes smaller than registry allocations: 165897
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 92912
Total APNIC prefixes after maximum aggregation: 30455
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 90306
Unique aggregates announced from the APNIC address blocks: 38334
APNIC Region origin ASes present in the Internet Routing Table: 4622
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 701
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 17
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 640882688
Equivalent to 38 /8s, 51 /16s and 24 /24s
Percentage of available APNIC address space announced: 81.3
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: 147521
Total ARIN prefixes after maximum aggregation: 75179
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119413
Unique aggregates announced from the ARIN address blocks: 48750
ARIN Region origin ASes present in the Internet Routing Table: 14865
ARIN Prefixes per ASN: 8.03
ARIN Region origin ASes announcing only one prefix: 5654
ARIN Region transit ASes present in the Internet Routing Table: 1512
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 16
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 806561792
Equivalent to 48 /8s, 19 /16s and 40 /24s
Percentage of available ARIN address space announced: 64.1
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: 101000
Total RIPE prefixes after maximum aggregation: 52895
RIPE Deaggregation factor: 1.91
Prefixes being announced from the RIPE address blocks: 92567
Unique aggregates announced from the RIPE address blocks: 56976
RIPE Region origin ASes present in the Internet Routing Table: 16342
RIPE Prefixes per ASN: 5.66
RIPE Region origin ASes announcing only one prefix: 7995
RIPE Region transit ASes present in the Internet Routing Table: 2576
Average RIPE Region AS path length visible: 3.5
Max RIPE Region AS path length visible: 26
Number of RIPE region 32-bit ASNs visible in the Routing Table: 0
Number of RIPE addresses announced to Internet: 501794304
Equivalent to 29 /8s, 232 /16s and 198 /24s
Percentage of available RIPE address space announced: 80.8
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: 38387
Total LACNIC prefixes after maximum aggregation: 8019
LACNIC Deaggregation factor: 4.79
Prefixes being announced from the LACNIC address blocks: 38304
Unique aggregates announced from the LACNIC address blocks: 19748
LACNIC Region origin ASes present in the Internet Routing Table: 1562
LACNIC Prefixes per ASN: 24.52
LACNIC Region origin ASes announcing only one prefix: 438
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: 17
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 98145024
Equivalent to 5 /8s, 217 /16s and 147 /24s
Percentage of available LACNIC address space announced: 65.0
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: 8612
Total AfriNIC prefixes after maximum aggregation: 2103
AfriNIC Deaggregation factor: 4.10
Prefixes being announced from the AfriNIC address blocks: 6719
Unique aggregates announced from the AfriNIC address blocks: 2167
AfriNIC Region origin ASes present in the Internet Routing Table: 518
AfriNIC Prefixes per ASN: 12.97
AfriNIC Region origin ASes announcing only one prefix: 171
AfriNIC Region transit ASes present in the Internet Routing Table: 116
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: 31536384
Equivalent to 1 /8s, 225 /16s and 53 /24s
Percentage of available AfriNIC address space announced: 47.0
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 1931 11107 682 Korea Telecom (KIX)
17974 1661 503 36 PT Telekomunikasi Indonesia
7545 1646 303 88 TPG Internet Pty Ltd
4755 1554 386 162 TATA Communications formerly
9583 1202 91 509 Sify Limited
9829 1189 1001 30 National Internet Backbone
7552 1101 1062 11 Vietel Corporation
24560 1010 384 166 Bharti Airtel Ltd., Telemedia
4808 980 1946 280 CNCGROUP IP network China169
18101 950 131 156 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 3449 1032 171 Windstream Communications Inc
6389 3405 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
1785 1884 680 127 PaeTec Communications, Inc.
20115 1635 1555 634 Charter Communications
4323 1604 1075 384 tw telecom holdings, inc.
22773 1545 2910 111 Cox Communications Inc.
30036 1402 254 756 Mediacom Communications Corp
7018 1299 10049 861 AT&T Services, Inc.
2386 1163 493 860 AT&T Data Communications Serv
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 1696 544 16 Corbina telecom
2118 1421 97 13 EUnet/RELCOM Autonomous Syste
15557 1088 2184 60 NEUF CEGETEL (formerly LDCOM
34984 661 188 170 BILISIM TELEKOM
6830 640 1927 411 UPC Broadband
20940 629 205 489 Akamai Technologies European
12479 626 651 66 France Telecom Espana SA
9116 541 326 32 Goldenlines main autonomous s
31148 540 37 9 FreeNet ISP
3320 533 8442 399 Deutsche Telekom AG
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 1775 326 152 Types of queries are: POCs, o
28573 1717 1094 58 Types of queries are: POCs, o
8151 1344 2994 340 Uninet S.A. de C.V.
7303 1329 823 184 Telecom Argentina S.A.
26615 900 676 30 Tim Celular S.A.
27947 656 68 108 Telconet S.A
11172 636 107 73 Alestra, S. de R.L. de C.V.
22047 582 322 17 Types of queries are: POCs, o
3816 563 240 89 Types of queries are: POCs, o
6503 557 418 66 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 1235 958 13 TEDATA
24863 744 274 34 LINKdotNET AS number
6713 489 649 18 Itissalat Al-MAGHRIB
3741 271 923 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 183 80 8 RAYA Telecom - Egypt
36923 157 20 4 Swift Networks Limited
29571 156 15 16 Ci Telecom Autonomous system
33776 153 11 24 Starcomms Nigeria 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
7029 3449 1032 171 Windstream Communications Inc
6389 3405 3807 199 BellSouth.net Inc.
18566 2092 382 177 Covad Communications Co.
4766 1931 11107 682 Korea Telecom (KIX)
1785 1884 680 127 PaeTec Communications, Inc.
10620 1775 326 152 Types of queries are: POCs, o
28573 1717 1094 58 Types of queries are: POCs, o
8402 1696 544 16 Corbina telecom
17974 1661 503 36 PT Telekomunikasi Indonesia
7545 1646 303 88 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 3405 3206 BellSouth.net Inc.
18566 2092 1915 Covad Communications Co.
1785 1884 1757 PaeTec Communications, Inc.
8402 1696 1680 Corbina telecom
28573 1717 1659 Types of queries are: POCs, o
17974 1661 1625 PT Telekomunikasi Indonesia
10620 1775 1623 Types of queries are: POCs, o
7545 1646 1558 TPG Internet Pty Ltd
22773 1545 1434 Cox Communications Inc.
2118 1421 1408 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
23.27.0.0/20 54500 EGIHosting
23.27.16.0/20 54500 EGIHosting
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 /10:28 /11:81 /12:236
/13:458 /14:817 /15:1478 /16:12144 /17:6214 /18:10360
/19:20470 /20:28440 /21:29158 /22:39428 /23:36879 /24:207535
/25:11 /26:21 /27:20 /28:153 /29:140 /30:69
/31:0 /32:142
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3088 3449 Windstream Communications Inc
6389 2102 3405 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
8402 1674 1696 Corbina telecom
10620 1672 1775 Types of queries are: POCs, o
30036 1351 1402 Mediacom Communications Corp
11492 1125 1162 CABLE ONE, INC.
1785 1065 1884 PaeTec Communications, Inc.
8452 1048 1235 TEDATA
7011 1042 1156 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:522 2:708 4:14 6:3 8:392 12:1965
13:1 14:590 15:12 16:3 17:7 20:8
23:143 24:1748 27:1231 31:972 32:57 33:1
34:2 36:9 37:254 38:770 40:122 41:2991
42:127 44:3 46:1402 47:3 49:335 50:517
52:13 54:5 55:8 56:3 57:36 58:908
59:487 60:280 61:1079 62:979 63:2007 64:4130
65:2281 66:4481 67:2015 68:1159 69:3170 70:904
71:390 72:1799 74:2576 75:487 76:320 77:971
78:948 79:482 80:1203 81:891 82:637 83:540
84:607 85:1190 86:736 87:915 88:333 89:1563
90:286 91:4568 92:515 93:1391 94:1391 95:1100
96:368 97:316 98:803 99:38 100:5 101:146
103:874 106:63 107:176 108:196 109:1554 110:724
111:857 112:426 113:541 114:609 115:770 116:874
117:704 118:904 119:1223 120:329 121:663 122:1586
123:1084 124:1306 125:1325 128:502 129:183 130:258
131:575 132:137 133:21 134:226 135:63 136:210
137:182 138:275 139:144 140:461 141:235 142:371
143:411 144:494 145:69 146:484 147:241 148:703
149:299 150:151 151:176 152:447 153:171 154:6
155:444 156:209 157:337 158:162 159:447 160:328
161:227 162:341 163:176 164:527 165:395 166:564
167:463 168:803 169:147 170:846 171:121 172:4
173:1717 174:590 175:424 176:549 177:565 178:1286
180:1173 181:70 182:760 183:284 184:454 185:1
186:2108 187:843 188:1054 189:1201 190:5499 192:5941
193:5584 194:4554 195:3632 196:1259 197:168 198:3574
199:4409 200:5646 201:1766 202:8165 203:8591 204:4283
205:2432 206:2668 207:2723 208:4072 209:3579 210:2693
211:1438 212:1965 213:1867 214:868 215:100 216:5025
217:1523 218:524 219:334 220:1227 221:543 222:296
223:312
End of report