Routing Table Report 08:00 +10GMT Wed 28 Mar, 2012
Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/london/
Analysis Summary
----------------
BGP routing table entries examined: 395760
Prefixes after maximum aggregation: 169437
Deaggregation factor: 2.34
Unique aggregates announced to Internet: 195536
Total ASes present in the Internet Routing Table: 38216
Prefixes per ASN: 10.36
Origin-only ASes present in the Internet Routing Table: 32954
Origin ASes announcing only one prefix: 15506
Transit ASes present in the Internet Routing Table: 5262
Transit-only ASes present in the Internet Routing Table: 122
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: 1357
Unregistered ASNs in the Routing Table: 333
Number of 32-bit ASNs allocated by the RIRs: 2337
Number of 32-bit ASNs visible in the Routing Table: 0
Prefixes from 32-bit ASNs in the Routing Table: 5201
Special use prefixes present in the Routing Table: 8
Prefixes being announced from unallocated address space: 1162
Number of addresses announced to Internet: 2547247360
Equivalent to 151 /8s, 211 /16s and 233 /24s
Percentage of available address space announced: 68.7
Percentage of allocated address space announced: 68.7
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: 166301
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 93079
Total APNIC prefixes after maximum aggregation: 30662
APNIC Deaggregation factor: 3.04
Prefixes being announced from the APNIC address blocks: 90490
Unique aggregates announced from the APNIC address blocks: 39214
APNIC Region origin ASes present in the Internet Routing Table: 4631
APNIC Prefixes per ASN: 19.54
APNIC Region origin ASes announcing only one prefix: 1263
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: 642079488
Equivalent to 38 /8s, 69 /16s and 91 /24s
Percentage of available APNIC address space announced: 81.4
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: 148014
Total ARIN prefixes after maximum aggregation: 75326
ARIN Deaggregation factor: 1.96
Prefixes being announced from the ARIN address blocks: 119642
Unique aggregates announced from the ARIN address blocks: 49911
ARIN Region origin ASes present in the Internet Routing Table: 14876
ARIN Prefixes per ASN: 8.04
ARIN Region origin ASes announcing only one prefix: 5675
ARIN Region transit ASes present in the Internet Routing Table: 1506
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: 805135360
Equivalent to 47 /8s, 253 /16s and 100 /24s
Percentage of available ARIN address space announced: 64.0
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: 100868
Total RIPE prefixes after maximum aggregation: 53127
RIPE Deaggregation factor: 1.90
Prefixes being announced from the RIPE address blocks: 92226
Unique aggregates announced from the RIPE address blocks: 57152
RIPE Region origin ASes present in the Internet Routing Table: 16346
RIPE Prefixes per ASN: 5.64
RIPE Region origin ASes announcing only one prefix: 7970
RIPE Region transit ASes present in the Internet Routing Table: 2589
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: 502194944
Equivalent to 29 /8s, 238 /16s and 227 /24s
Percentage of available RIPE address space announced: 80.9
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: 38777
Total LACNIC prefixes after maximum aggregation: 8000
LACNIC Deaggregation factor: 4.85
Prefixes being announced from the LACNIC address blocks: 38530
Unique aggregates announced from the LACNIC address blocks: 19797
LACNIC Region origin ASes present in the Internet Routing Table: 1557
LACNIC Prefixes per ASN: 24.75
LACNIC Region origin ASes announcing only one prefix: 435
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: 98632704
Equivalent to 5 /8s, 225 /16s and 4 /24s
Percentage of available LACNIC address space announced: 65.3
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: 8843
Total AfriNIC prefixes after maximum aggregation: 2105
AfriNIC Deaggregation factor: 4.20
Prefixes being announced from the AfriNIC address blocks: 6937
Unique aggregates announced from the AfriNIC address blocks: 2154
AfriNIC Region origin ASes present in the Internet Routing Table: 523
AfriNIC Prefixes per ASN: 13.26
AfriNIC Region origin ASes announcing only one prefix: 163
AfriNIC Region transit ASes present in the Internet Routing Table: 112
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: 31473664
Equivalent to 1 /8s, 224 /16s and 64 /24s
Percentage of available AfriNIC address space announced: 46.9
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 1929 11106 679 Korea Telecom (KIX)
17974 1706 502 60 PT Telekomunikasi Indonesia
7545 1653 301 89 TPG Internet Pty Ltd
4755 1554 385 159 TATA Communications formerly
9583 1234 94 539 Sify Limited
9829 1208 1025 29 National Internet Backbone
7552 1112 1062 11 Vietel Corporation
24560 1016 385 167 Bharti Airtel Ltd., Telemedia
4808 983 1946 282 CNCGROUP IP network China169
18101 950 131 160 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
7029 3409 1016 168 Windstream Communications Inc
6389 3371 3807 199 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
1785 1889 680 128 PaeTec Communications, Inc.
20115 1635 1559 626 Charter Communications
4323 1601 1076 382 tw telecom holdings, inc.
22773 1549 2910 111 Cox Communications Inc.
30036 1408 254 741 Mediacom Communications Corp
7018 1287 9807 838 AT&T Services, Inc.
11492 1184 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 1650 544 16 Corbina telecom
2118 1427 97 13 EUnet/RELCOM Autonomous Syste
31148 672 37 9 FreeNet ISP
34984 665 188 173 BILISIM TELEKOM
12479 651 658 57 France Telecom Espana SA
6830 641 1943 412 UPC Broadband
20940 627 203 492 Akamai Technologies European
9116 541 326 32 Goldenlines main autonomous s
3320 532 8442 398 Deutsche Telekom AG
8551 506 360 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 1808 329 126 Types of queries are: POCs, o
28573 1745 1105 58 Types of queries are: POCs, o
8151 1351 3000 342 Uninet S.A. de C.V.
7303 1350 826 190 Telecom Argentina S.A.
26615 902 700 28 Tim Celular S.A.
27947 664 69 114 Telconet S.A
11172 638 107 74 Alestra, S. de R.L. de C.V.
22047 584 326 15 Types of queries are: POCs, o
3816 568 242 98 Types of queries are: POCs, o
27738 551 35 15 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 1269 958 13 TEDATA
24863 843 274 34 LINKdotNET AS number
6713 490 649 18 Itissalat Al-MAGHRIB
3741 271 924 228 The Internet Solution
15706 227 32 6 Sudatel Internet Exchange Aut
12258 197 28 62 Vodacom Internet Company
24835 178 80 8 RAYA Telecom - Egypt
33776 168 12 20 Starcomms Nigeria Limited
16637 161 664 84 MTN Network Solutions
29571 159 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
7029 3409 1016 168 Windstream Communications Inc
6389 3371 3807 199 BellSouth.net Inc.
18566 2094 383 179 Covad Communications Co.
4766 1929 11106 679 Korea Telecom (KIX)
1785 1889 680 128 PaeTec Communications, Inc.
10620 1808 329 126 Types of queries are: POCs, o
28573 1745 1105 58 Types of queries are: POCs, o
17974 1706 502 60 PT Telekomunikasi Indonesia
7545 1653 301 89 TPG Internet Pty Ltd
8402 1650 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
6389 3371 3172 BellSouth.net Inc.
18566 2094 1915 Covad Communications Co.
1785 1889 1761 PaeTec Communications, Inc.
28573 1745 1687 Types of queries are: POCs, o
10620 1808 1682 Types of queries are: POCs, o
17974 1706 1646 PT Telekomunikasi Indonesia
8402 1650 1634 Corbina telecom
7545 1653 1564 TPG Internet Pty Ltd
22773 1549 1438 Cox Communications Inc.
2118 1427 1414 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
54439 UNALLOCATED 8.25.174.0/24 3356 Level 3 Communicatio
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.
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
23.28.192.0/18 29737 WideOpenWest Finance LLC
23.29.0.0/20 4323 tw telecom holdings, inc.
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
/13:458 /14:830 /15:1478 /16:12144 /17:6226 /18:10385
/19:20556 /20:28578 /21:29381 /22:39718 /23:37150 /24:207923
/25:11 /26:21 /27:20 /28:154 /29:142 /30:69
/31:0 /32:140
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
7029 3052 3409 Windstream Communications Inc
6389 2087 3371 BellSouth.net Inc.
18566 2043 2094 Covad Communications Co.
10620 1705 1808 Types of queries are: POCs, o
8402 1627 1650 Corbina telecom
30036 1355 1408 Mediacom Communications Corp
11492 1147 1184 CABLE ONE, INC.
8452 1079 1269 TEDATA
1785 1067 1889 PaeTec Communications, Inc.
7011 1048 1162 Frontier Communications of Am
Complete listing at http://thyme.rand.apnic.net/london/data-sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
1:528 2:667 4:14 6:3 8:392 12:1978
13:1 14:597 15:12 16:3 17:7 20:8
23:152 24:1751 27:1250 31:964 32:53 33:2
34:2 36:8 37:299 38:775 40:120 41:3034
42:130 44:3 46:1454 47:3 49:339 50:534
52:13 54:6 55:11 56:3 57:30 58:922
59:485 60:274 61:1083 62:967 63:1992 64:4169
65:2273 66:4504 67:2015 68:1144 69:3181 70:901
71:446 72:1818 74:2593 75:493 76:318 77:962
78:979 79:497 80:1179 81:899 82:666 83:552
84:517 85:1195 86:415 87:917 88:344 89:1609
90:297 91:4616 92:518 93:1367 94:1456 95:1144
96:370 97:315 98:841 99:37 100:6 101:156
103:891 106:63 107:179 108:208 109:1266 110:739
111:901 112:430 113:537 114:620 115:763 116:886
117:703 118:907 119:1186 120:335 121:674 122:1621
123:1095 124:1298 125:1259 128:521 129:184 130:254
131:591 132:165 133:21 134:233 135:63 136:210
137:191 138:351 139:144 140:468 141:240 142:370
143:406 144:496 145:69 146:483 147:244 148:701
149:295 150:149 151:176 152:457 153:171 154:6
155:444 156:210 157:335 158:171 159:451 160:324
161:231 162:340 163:178 164:543 165:386 166:560
167:464 168:801 169:147 170:844 171:124 172:4
173:1718 174:625 175:422 176:458 177:599 178:1296
180:1140 181:72 182:744 183:276 184:442 185:1
186:2148 187:866 188:1159 189:1189 190:5515 192:5957
193:5593 194:4610 195:3593 196:1256 197:177 198:3573
199:4431 200:5661 201:1845 202:8203 203:8492 204:4263
205:2448 206:2641 207:2721 208:4043 209:3588 210:2685
211:1442 212:1992 213:1905 214:874 215:107 216:5056
217:1517 218:523 219:328 220:1227 221:537 222:297
223:313
End of report
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