Routing Table Report 08:00 +10GMT Wed 18 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399331
Prefixes after maximum aggregation: 170432
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197120
Total ASes present in the Internet Routing Table: 38354
Prefixes per ASN: 10.41
Origin-only ASes present in the Internet Routing Table: 33054
Origin ASes announcing only one prefix: 15628
Transit ASes present in the Internet Routing Table: 5300
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: 29
Max AS path prepend of ASN (51742) 24
Prefixes from unregistered ASNs in the Routing Table: 1201
Unregistered ASNs in the Routing Table: 220
Number of 32-bit ASNs allocated by the RIRs: 2584
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5485
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 117
Number of addresses announced to Internet: 2554790656
Equivalent to 152 /8s, 71 /16s and 3 /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: 168785
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93911
Total APNIC prefixes after maximum aggregation: 30852
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 91374
Unique aggregates announced from the APNIC address blocks: 39603
APNIC Region origin ASes present in the Internet Routing Table: 4628
APNIC Prefixes per ASN: 19.74
APNIC Region origin ASes announcing only one prefix: 1258
APNIC Region transit ASes present in the Internet Routing Table: 704
Average APNIC Region AS path length visible: 4.0
Max APNIC Region AS path length visible: 20
Number of APNIC region 32-bit ASNs visible in the Routing Table: 0
Number of APNIC addresses announced to Internet: 643462912
Equivalent to 38 /8s, 90 /16s and 119 /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: 148565
Total ARIN prefixes after maximum aggregation: 75695
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120079
Unique aggregates announced from the ARIN address blocks: 50271
ARIN Region origin ASes present in the Internet Routing Table: 14982
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5725
ARIN Region transit ASes present in the Internet Routing Table: 1514
Average ARIN Region AS path length visible: 3.3
Max ARIN Region AS path length visible: 29
Number of ARIN region 32-bit ASNs visible in the Routing Table: 0
Number of ARIN addresses announced to Internet: 807180544
Equivalent to 48 /8s, 28 /16s and 153 /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: 101717
Total RIPE prefixes after maximum aggregation: 53568
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93668
Unique aggregates announced from the RIPE address blocks: 58101
RIPE Region origin ASes present in the Internet Routing Table: 16478
RIPE Prefixes per ASN: 5.68
RIPE Region origin ASes announcing only one prefix: 8046
RIPE Region transit ASes present in the Internet Routing Table: 2598
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: 509374976
Equivalent to 30 /8s, 92 /16s and 114 /24s
Percentage of available RIPE address space announced: 82.1
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: 39904
Total LACNIC prefixes after maximum aggregation: 8128
LACNIC Deaggregation factor: 4.91
Prefixes being announced from the LACNIC address blocks: 39907
Unique aggregates announced from the LACNIC address blocks: 20180
LACNIC Region origin ASes present in the Internet Routing Table: 1573
LACNIC Prefixes per ASN: 25.37
LACNIC Region origin ASes announcing only one prefix: 437
LACNIC Region transit ASes present in the Internet Routing Table: 288
Average LACNIC Region AS path length visible: 4.0
Max LACNIC Region AS path length visible: 24
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 0
Number of LACNIC addresses announced to Internet: 99323392
Equivalent to 5 /8s, 235 /16s and 142 /24s
Percentage of available LACNIC address space announced: 65.8
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: 8946
Total AfriNIC prefixes after maximum aggregation: 2120
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7007
Unique aggregates announced from the AfriNIC address blocks: 2168
AfriNIC Region origin ASes present in the Internet Routing Table: 526
AfriNIC Prefixes per ASN: 13.32
AfriNIC Region origin ASes announcing only one prefix: 162
AfriNIC Region transit ASes present in the Internet Routing Table: 116
Average AfriNIC Region AS path length visible: 3.5
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: 31647744
Equivalent to 1 /8s, 226 /16s and 232 /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 1718 503 63 PT Telekomunikasi Indonesia
7545 1667 301 87 TPG Internet Pty Ltd
4755 1576 387 163 TATA Communications formerly
9583 1242 94 539 Sify Limited
9829 1234 1045 31 National Internet Backbone
7552 1105 1062 11 Vietel Corporation
24560 1021 385 167 Bharti Airtel Ltd., Telemedia
4808 978 1944 284 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 3427 3807 198 BellSouth.net Inc.
7029 3405 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1905 680 129 PaeTec Communications, Inc.
20115 1642 1565 619 Charter Communications
4323 1598 1060 382 tw telecom holdings, inc.
22773 1575 2910 111 Cox Communications Inc.
30036 1430 261 750 Mediacom Communications Corp
7018 1270 9808 829 AT&T Services, Inc.
11492 1186 216 364 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 1652 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 679 37 9 FreeNet ISP
34984 678 188 175 BILISIM TELEKOM
6830 658 2215 427 UPC Broadband
12479 641 664 64 France Telecom Espana SA
20940 630 205 498 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 533 8442 399 Deutsche Telekom AG
8551 503 360 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 1809 327 176 Types of queries are: POCs, o
28573 1782 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1357 827 190 Telecom Argentina S.A.
8151 1347 3001 342 Uninet S.A. de C.V.
26615 903 697 32 Tim Celular S.A.
27947 665 74 98 Telconet S.A
11172 638 107 73 Alestra, S. de R.L. de C.V.
22047 582 326 15 Types of queries are: POCs, o
3816 575 242 100 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
12258 197 28 62 Vodacom Internet Company
33776 197 12 21 Starcomms Nigeria Limited
24835 179 80 8 RAYA Telecom - Egypt
15706 169 32 6 Sudatel Internet Exchange Aut
16637 161 666 86 MTN Network Solutions
29571 159 15 15 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 3427 3807 198 BellSouth.net Inc.
7029 3405 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1924 11110 696 Korea Telecom (KIX)
1785 1905 680 129 PaeTec Communications, Inc.
10620 1809 327 176 Types of queries are: POCs, o
28573 1782 1107 59 Types of queries are: POCs, o
17974 1718 503 63 PT Telekomunikasi Indonesia
7545 1667 301 87 TPG Internet Pty Ltd
8402 1652 544 16 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 3405 3236 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1905 1776 PaeTec Communications, Inc.
28573 1782 1723 Types of queries are: POCs, o
17974 1718 1655 PT Telekomunikasi Indonesia
8402 1652 1636 Corbina telecom
10620 1809 1633 Types of queries are: POCs, o
7545 1667 1580 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
37.235.96.0/20 39392 SuperNetwork s.r.o.
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
/13:459 /14:830 /15:1481 /16:12151 /17:6237 /18:10428
/19:20638 /20:28726 /21:29577 /22:40033 /23:37495 /24:210355
/25:11 /26:21 /27:20 /28:151 /29:139 /30:67
/31:0 /32:135
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3045 3405 Windstream Communications Inc
6389 2144 3427 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1695 1809 Types of queries are: POCs, o
8402 1629 1652 Corbina telecom
30036 1376 1430 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1149 1186 CABLE ONE, INC.
8452 1111 1303 TEDATA
1785 1071 1905 PaeTec Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:534 2:693 4:14 6:3 8:403 12:1967
13:1 14:595 15:12 16:3 17:7 20:22
23:162 24:1764 27:1259 31:1000 32:52 33:2
34:2 36:8 37:360 38:791 40:120 41:3135
42:134 44:3 46:1494 47:3 49:379 50:537
52:13 54:7 55:9 56:3 57:28 58:912
59:511 60:277 61:1160 62:975 63:1987 64:4158
65:2250 66:4485 67:2026 68:1150 69:3153 70:906
71:487 72:1819 74:2597 75:494 76:320 77:937
78:1002 79:478 80:1214 81:900 82:667 83:549
84:489 85:1198 86:415 87:924 88:350 89:1634
90:292 91:4725 92:524 93:1366 94:1472 95:1124
96:355 97:319 98:913 99:34 100:7 101:171
103:973 106:104 107:187 108:213 109:1285 110:737
111:921 112:444 113:579 114:615 115:868 116:877
117:698 118:905 119:1189 120:346 121:779 122:1631
123:1087 124:1303 125:1261 128:511 129:188 130:247
131:590 132:165 133:21 134:233 135:62 136:210
137:174 138:351 139:145 140:464 141:243 142:368
143:403 144:513 145:69 146:486 147:291 148:743
149:300 150:152 151:176 152:462 153:172 154:7
155:446 156:212 157:335 158:176 159:450 160:337
161:235 162:347 163:180 164:566 165:394 166:570
167:463 168:812 169:126 170:858 171:127 172:2
173:1749 174:586 175:416 176:489 177:664 178:1334
180:1169 181:73 182:781 183:286 184:450 185:1
186:2180 187:1032 188:1188 189:1773 190:5480 192:5962
193:5546 194:4635 195:3576 196:1263 197:128 198:3598
199:4458 200:5699 201:1922 202:8244 203:8505 204:4253
205:2475 206:2659 207:2709 208:4046 209:3591 210:2676
211:1454 212:1987 213:1899 214:831 215:103 216:5078
217:1534 218:528 219:340 220:1225 221:537 222:294
223:320
End of report
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