1 Crown Castle 40,039
2 American Tower 39,989
3 SBA Communications 14,873
4 United States Cellular Co. 4,207
5 Vertical Bridge 3,198
6 Insite Towers 1,100
7 BNSF Railroad 941
8 Time Warner 653
9 Diamond Communications 637
10 Phoenix Tower International 620
11 Tower Ventures 561
12 Union Pacific Railroad Company 513
13 C Spire Wireless 507
14 Industrial Communications 495
15 Grain Management 487
16 Comcast 441
17 Mediacom Communications 424
18 T-Mobile Towers 403
19 Cumulus Broadcasting 336
20 Subcarrier Communications 322
21 Century Link 311
22 Charter Communications 291
23 Central States Tower 265
24 SkyWay Towers 250
25 Townsquare Media 250
26 General Communication, Inc. 249
27 Sprint Sites USA 236
28 Horvath Communications 235
29 Southern Company 220
30 Entergy 192
31 K2 Towers 192
32 TowerCo 187
33 Pegasus Wireless 172
34 CTI Towers, Inc. 172
35 ForeSite LLC 164
36 Cox Communications 163
37 Shenandoah Mobile Company 151
38 Mobilitie 149
39 Communications Enhancement 140
40 52 Eighty Partners 135
41 Nova Towers 128
42 Entercom 114
43 Branch Communications 112
44 Day Wireless Systems 107
45 Pacific Gas & Electric 104
46 NTCH ClearTalk 103
47 Municipal Communications 103
48 Frosty Towers 101
49 Milestone Communications 95
50 Georgia Power Company 93
51 Clearview Tower Company, LLC 90
52 Barinowski Investment Co., L.P. 88
53 Badger Towers 84
54 Performance Dev. Group 84
55 Alabama Power Company 83
56 Heartland Tower 82
57 Communications Sales & Leasing 81
58 Duke Energy Carolinas 73
59 Cellular Network Partnership 73
60 Baltimore Gas & Electric 69
61 Capital Telecom 66
62 American Family Association 64
63 APC Towers 61
64 Tower Acquisition 59
65 Union Telephone Company 56
66 Tower Com 56
67 TowerKing 54
68 Wireless Asset Group 53
69 Mid Continent Communications 51
70 Bright House Networks 50
71 Parallel Infrastructure 50
72 M