Routing Table Report 08:00 +10GMT Fri 13 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 398806
Prefixes after maximum aggregation: 170160
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 196647
Total ASes present in the Internet Routing Table: 38331
Prefixes per ASN: 10.40
Origin-only ASes present in the Internet Routing Table: 33044
Origin ASes announcing only one prefix: 15632
Transit ASes present in the Internet Routing Table: 5287
Transit-only ASes present in the Internet Routing Table: 131
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: 1196
Unregistered ASNs in the Routing Table: 218
Number of 32-bit ASNs allocated by the RIRs: 2556
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5477
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2554132224
Equivalent to 152 /8s, 60 /16s and 247 /24s
Percentage of available address space announced: 68.9
Percentage of allocated address space announced: 68.9
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.3
Total number of prefixes smaller than registry allocations: 168641
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93844
Total APNIC prefixes after maximum aggregation: 30816
APNIC Deaggregation factor: 3.05
Prefixes being announced from the APNIC address blocks: 91294
Unique aggregates announced from the APNIC address blocks: 39535
APNIC Region origin ASes present in the Internet Routing Table: 4629
APNIC Prefixes per ASN: 19.72
APNIC Region origin ASes announcing only one prefix: 1261
APNIC Region transit ASes present in the Internet Routing Table: 703
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: 643096832
Equivalent to 38 /8s, 84 /16s and 225 /24s
Percentage of available APNIC address space announced: 81.6
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: 148358
Total ARIN prefixes after maximum aggregation: 75547
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119896
Unique aggregates announced from the ARIN address blocks: 50189
ARIN Region origin ASes present in the Internet Routing Table: 14971
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5728
ARIN Region transit ASes present in the Internet Routing Table: 1511
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: 807058944
Equivalent to 48 /8s, 26 /16s and 190 /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: 101574
Total RIPE prefixes after maximum aggregation: 53504
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93517
Unique aggregates announced from the RIPE address blocks: 57944
RIPE Region origin ASes present in the Internet Routing Table: 16464
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 8041
RIPE Region transit ASes present in the Internet Routing Table: 2595
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: 509223936
Equivalent to 30 /8s, 90 /16s and 36 /24s
Percentage of available RIPE address space announced: 82.0
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: 39801
Total LACNIC prefixes after maximum aggregation: 8106
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39831
Unique aggregates announced from the LACNIC address blocks: 20125
LACNIC Region origin ASes present in the Internet Routing Table: 1570
LACNIC Prefixes per ASN: 25.37
LACNIC Region origin ASes announcing only one prefix: 438
LACNIC Region transit ASes present in the Internet Routing Table: 287
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: 99220480
Equivalent to 5 /8s, 233 /16s and 252 /24s
Percentage of available LACNIC address space announced: 65.7
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: 8957
Total AfriNIC prefixes after maximum aggregation: 2118
AfriNIC Deaggregation factor: 4.23
Prefixes being announced from the AfriNIC address blocks: 7030
Unique aggregates announced from the AfriNIC address blocks: 2155
AfriNIC Region origin ASes present in the Internet Routing Table: 527
AfriNIC Prefixes per ASN: 13.34
AfriNIC Region origin ASes announcing only one prefix: 164
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: 31657216
Equivalent to 1 /8s, 227 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 47.2
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 1924 11110 696 Korea Telecom (KIX)
17974 1719 503 63 PT Telekomunikasi Indonesia
7545 1659 301 89 TPG Internet Pty Ltd
4755 1578 387 164 TATA Communications formerly
9583 1241 94 538 Sify Limited
9829 1235 1041 30 National Internet Backbone
7552 1107 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 989 1947 286 CNCGROUP IP network China169
18101 948 131 160 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 3430 3807 195 BellSouth.net Inc.
7029 3423 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1897 680 128 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1593 1059 380 tw telecom holdings, inc.
22773 1575 2910 111 Cox Communications Inc.
30036 1444 263 756 Mediacom Communications Corp
7018 1289 9807 838 AT&T Services, Inc.
11492 1185 216 365 CABLE ONE, 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 1669 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
34984 681 188 175 BILISIM TELEKOM
31148 679 37 9 FreeNet ISP
12479 651 658 61 France Telecom Espana SA
6830 640 1943 411 UPC Broadband
20940 625 203 493 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 504 360 81 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 1811 327 162 Types of queries are: POCs, o
28573 1775 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1353 827 189 Telecom Argentina S.A.
8151 1345 2999 342 Uninet S.A. de C.V.
26615 903 697 32 Tim Celular S.A.
27947 663 74 99 Telconet S.A
11172 639 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 574 242 100 Types of queries are: POCs, o
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 1303 958 13 TEDATA
24863 845 274 32 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 265 921 223 The Internet Solution
33776 208 12 21 Starcomms Nigeria Limited
12258 197 28 62 Vodacom Internet Company
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 163 666 86 MTN Network Solutions
29571 161 15 16 Ci Telecom Autonomous system
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 3430 3807 195 BellSouth.net Inc.
7029 3423 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1897 680 128 PaeTec Communications, Inc.
10620 1811 327 162 Types of queries are: POCs, o
28573 1775 1107 59 Types of queries are: POCs, o
17974 1719 503 63 PT Telekomunikasi Indonesia
8402 1669 544 16 Corbina telecom
7545 1659 301 89 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
7029 3423 3254 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1897 1769 PaeTec Communications, Inc.
28573 1775 1716 Types of queries are: POCs, o
17974 1719 1656 PT Telekomunikasi Indonesia
8402 1669 1653 Corbina telecom
10620 1811 1649 Types of queries are: POCs, o
7545 1659 1570 TPG Internet Pty Ltd
22773 1575 1464 Cox Communications Inc.
6503 1522 1456 Axtel, S.A.B. de C.V.
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
27.112.114.0/24 23884 Proimage Engineering and Comm
37.230.0.0/19 9063 teresto media AG
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
/13:460 /14:830 /15:1479 /16:12152 /17:6251 /18:10415
/19:20604 /20:28693 /21:29542 /22:39989 /23:37455 /24:210017
/25:11 /26:21 /27:20 /28:149 /29:142 /30:65
/31:0 /32:134
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3063 3423 Windstream Communications Inc
6389 2148 3430 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1703 1811 Types of queries are: POCs, o
8402 1646 1669 Corbina telecom
30036 1390 1444 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1148 1185 CABLE ONE, INC.
8452 1111 1303 TEDATA
7011 1068 1183 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:530 2:674 4:14 6:3 8:399 12:1955
13:1 14:596 15:12 16:3 17:7 20:8
23:156 24:1763 27:1265 31:997 32:52 33:2
34:2 36:8 37:337 38:788 40:120 41:3132
42:134 44:3 46:1462 47:3 49:378 50:536
52:13 54:7 55:9 56:3 57:28 58:913
59:511 60:277 61:1161 62:979 63:1986 64:4138
65:2250 66:4484 67:2028 68:1150 69:3150 70:907
71:473 72:1819 74:2597 75:496 76:317 77:960
78:1001 79:490 80:1198 81:902 82:666 83:542
84:490 85:1193 86:413 87:928 88:351 89:1629
90:297 91:4714 92:520 93:1382 94:1468 95:1132
96:355 97:319 98:900 99:34 100:7 101:162
103:950 106:104 107:185 108:206 109:1309 110:738
111:915 112:438 113:576 114:617 115:863 116:875
117:705 118:903 119:1176 120:348 121:787 122:1627
123:1100 124:1304 125:1261 128:522 129:185 130:246
131:596 132:165 133:21 134:234 135:62 136:210
137:174 138:355 139:146 140:462 141:243 142:370
143:399 144:516 145:69 146:483 147:274 148:743
149:300 150:152 151:176 152:462 153:172 154:6
155:445 156:212 157:335 158:177 159:450 160:337
161:235 162:349 163:180 164:567 165:395 166:570
167:464 168:807 169:126 170:854 171:127 172:4
173:1725 174:589 175:416 176:483 177:661 178:1329
180:1160 181:73 182:773 183:269 184:451 185:1
186:2189 187:1013 188:1189 189:1784 190:5475 192:5961
193:5552 194:4625 195:3574 196:1262 197:123 198:3579
199:4438 200:5650 201:1922 202:8239 203:8506 204:4267
205:2451 206:2657 207:2711 208:4042 209:3565 210:2681
211:1453 212:1990 213:1905 214:886 215:107 216:5068
217:1529 218:529 219:340 220:1221 221:538 222:294
223:319
End of report
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