Routing Table Report 08:00 +10GMT Tue 24 Apr, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 399563
Prefixes after maximum aggregation: 170722
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 197769
Total ASes present in the Internet Routing Table: 38402
Prefixes per ASN: 10.40
Origin-only ASes present in the Internet Routing Table: 33098
Origin ASes announcing only one prefix: 15656
Transit ASes present in the Internet Routing Table: 5304
Transit-only ASes present in the Internet Routing Table: 120
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: 1207
Unregistered ASNs in the Routing Table: 223
Number of 32-bit ASNs allocated by the RIRs: 2620
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5582
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 113
Number of addresses announced to Internet: 2556167168
Equivalent to 152 /8s, 92 /16s and 4 /24s
Percentage of available address space announced: 69.0
Percentage of allocated address space announced: 69.0
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 92.4
Total number of prefixes smaller than registry allocations: 169004
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93536
Total APNIC prefixes after maximum aggregation: 30820
APNIC Deaggregation factor: 3.03
Prefixes being announced from the APNIC address blocks: 91022
Unique aggregates announced from the APNIC address blocks: 39868
APNIC Region origin ASes present in the Internet Routing Table: 4641
APNIC Prefixes per ASN: 19.61
APNIC Region origin ASes announcing only one prefix: 1266
APNIC Region transit ASes present in the Internet Routing Table: 707
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: 643706880
Equivalent to 38 /8s, 94 /16s and 48 /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: 148766
Total ARIN prefixes after maximum aggregation: 75826
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 120232
Unique aggregates announced from the ARIN address blocks: 50362
ARIN Region origin ASes present in the Internet Routing Table: 15001
ARIN Prefixes per ASN: 8.01
ARIN Region origin ASes announcing only one prefix: 5737
ARIN Region transit ASes present in the Internet Routing Table: 1515
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: 807160320
Equivalent to 48 /8s, 28 /16s and 74 /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: 101870
Total RIPE prefixes after maximum aggregation: 53739
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 93817
Unique aggregates announced from the RIPE address blocks: 58267
RIPE Region origin ASes present in the Internet Routing Table: 16491
RIPE Prefixes per ASN: 5.69
RIPE Region origin ASes announcing only one prefix: 8046
RIPE Region transit ASes present in the Internet Routing Table: 2603
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: 510244352
Equivalent to 30 /8s, 105 /16s and 182 /24s
Percentage of available RIPE address space announced: 82.2
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: 40023
Total LACNIC prefixes after maximum aggregation: 8141
LACNIC Deaggregation factor: 4.92
Prefixes being announced from the LACNIC address blocks: 40042
Unique aggregates announced from the LACNIC address blocks: 20236
LACNIC Region origin ASes present in the Internet Routing Table: 1579
LACNIC Prefixes per ASN: 25.36
LACNIC Region origin ASes announcing only one prefix: 439
LACNIC Region transit ASes present in the Internet Routing Table: 290
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: 99340800
Equivalent to 5 /8s, 235 /16s and 210 /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: 8975
Total AfriNIC prefixes after maximum aggregation: 2127
AfriNIC Deaggregation factor: 4.22
Prefixes being announced from the AfriNIC address blocks: 7063
Unique aggregates announced from the AfriNIC address blocks: 2185
AfriNIC Region origin ASes present in the Internet Routing Table: 531
AfriNIC Prefixes per ASN: 13.30
AfriNIC Region origin ASes announcing only one prefix: 168
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: 31781632
Equivalent to 1 /8s, 228 /16s and 243 /24s
Percentage of available AfriNIC address space announced: 47.4
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 1928 11105 695 Korea Telecom (KIX)
17974 1717 503 63 PT Telekomunikasi Indonesia
7545 1670 301 88 TPG Internet Pty Ltd
4755 1556 384 152 TATA Communications formerly
9829 1249 1069 30 National Internet Backbone
9583 1144 85 489 Sify Limited
7552 1100 1062 11 Vietel Corporation
24560 1022 385 167 Bharti Airtel Ltd., Telemedia
4808 957 1937 286 CNCGROUP IP network China169
9498 949 291 64 BHARTI Airtel Ltd.
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 3428 3807 196 BellSouth.net Inc.
7029 3403 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
1785 1905 680 129 PaeTec Communications, Inc.
20115 1640 1566 619 Charter Communications
4323 1600 1060 383 tw telecom holdings, inc.
22773 1577 2910 113 Cox Communications Inc.
30036 1412 258 763 Mediacom Communications Corp
7018 1267 13903 825 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 1641 544 16 Corbina telecom
2118 1304 97 14 EUnet/RELCOM Autonomous Syste
31148 680 37 9 FreeNet ISP
34984 680 188 174 BILISIM TELEKOM
6830 656 2215 427 UPC Broadband
12479 643 666 63 France Telecom Espana SA
20940 628 205 498 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 531 8441 397 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 1816 328 173 Types of queries are: POCs, o
28573 1769 1107 59 Types of queries are: POCs, o
6503 1522 418 66 Axtel, S.A.B. de C.V.
7303 1363 829 188 Telecom Argentina S.A.
8151 1338 2997 333 Uninet S.A. de C.V.
26615 903 697 32 Tim Celular S.A.
27947 661 74 98 Telconet S.A
11172 640 107 74 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 1294 958 13 TEDATA
24863 837 274 32 LINKdotNET AS number
6713 493 649 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 3428 3807 196 BellSouth.net Inc.
7029 3403 1016 169 Windstream Communications Inc
18566 2092 382 179 Covad Communications Co.
4766 1928 11105 695 Korea Telecom (KIX)
1785 1905 680 129 PaeTec Communications, Inc.
10620 1816 328 173 Types of queries are: POCs, o
28573 1769 1107 59 Types of queries are: POCs, o
17974 1717 503 63 PT Telekomunikasi Indonesia
7545 1670 301 88 TPG Internet Pty Ltd
8402 1641 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 3403 3234 Windstream Communications Inc
18566 2092 1913 Covad Communications Co.
1785 1905 1776 PaeTec Communications, Inc.
28573 1769 1710 Types of queries are: POCs, o
17974 1717 1654 PT Telekomunikasi Indonesia
10620 1816 1643 Types of queries are: POCs, o
8402 1641 1625 Corbina telecom
7545 1670 1582 TPG Internet Pty Ltd
22773 1577 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
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 /10:28 /11:81 /12:235
/13:460 /14:827 /15:1482 /16:12179 /17:6212 /18:10441
/19:20616 /20:28788 /21:29664 /22:40007 /23:37519 /24:210443
/25:11 /26:21 /27:20 /28:150 /29:144 /30:66
/31:0 /32:137
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3043 3403 Windstream Communications Inc
6389 2145 3428 BellSouth.net Inc.
18566 2041 2092 Covad Communications Co.
10620 1698 1816 Types of queries are: POCs, o
8402 1618 1641 Corbina telecom
30036 1358 1412 Mediacom Communications Corp
6503 1281 1522 Axtel, S.A.B. de C.V.
11492 1149 1186 CABLE ONE, INC.
8452 1094 1294 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)
----------------------------------------------
1:535 2:684 4:14 6:3 8:404 12:1976
13:1 14:602 15:12 16:3 17:7 20:22
23:165 24:1766 27:1267 31:974 32:52 33:2
34:2 36:8 37:401 38:792 40:118 41:3157
42:134 44:3 46:1491 47:3 49:397 50:533
52:13 54:8 55:8 56:3 57:28 58:913
59:485 60:275 61:1091 62:976 63:1986 64:4157
65:2250 66:4484 67:2034 68:1166 69:3195 70:901
71:485 72:1819 74:2596 75:494 76:319 77:936
78:1010 79:476 80:1199 81:896 82:672 83:550
84:475 85:1201 86:421 87:926 88:343 89:1623
90:291 91:4747 92:523 93:1356 94:1504 95:1143
96:355 97:315 98:895 99:34 100:7 101:171
103:990 106:102 107:190 108:217 109:1283 110:737
111:914 112:444 113:582 114:638 115:798 116:882
117:702 118:908 119:1185 120:346 121:666 122:1633
123:1081 124:1296 125:1246 128:512 129:188 130:247
131:588 132:173 133:22 134:233 135:62 136:211
137:174 138:355 139:146 140:465 141:242 142:384
143:401 144:524 145:69 146:498 147:280 148:745
149:303 150:151 151:175 152:462 153:171 154:8
155:415 156:212 157:335 158:176 159:456 160:336
161:236 162:347 163:180 164:573 165:400 166:572
167:469 168:814 169:127 170:861 171:127 172:2
173:1748 174:562 175:404 176:434 177:677 178:1332
180:1177 181:77 182:795 183:288 184:456 185:1
186:2227 187:1051 188:1215 189:1775 190:5493 192:5964
193:5548 194:4644 195:3586 196:1264 197:131 198:3608
199:4490 200:5710 201:1926 202:8238 203:8489 204:4247
205:2471 206:2660 207:2727 208:4056 209:3599 210:2663
211:1451 212:2020 213:1908 214:841 215:102 216:5106
217:1529 218:528 219:309 220:1224 221:538 222:294
223:310
End of report
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