| KDL ENTERPRISES, INC.Zephyrhills, FL · Inactive | Zephyrhills, FL | Corporation | Aug 19, 1986 | Inactive |
| AMERICAN TOWER MANAGEMENT, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jan 22, 2004 | Active |
| AMERICAN TOWER ASSET SUB, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Mar 15, 2007 | Active |
| AMERICAN TOWER HOLDING SUB, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Mar 15, 2007 | Active |
| SPECTRASITE COMMUNICATIONS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | May 17, 2007 | Active |
| GTP ACQUISITION PARTNERS III, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Jun 29, 2007 | Inactive |
| GTP TOWERS IV, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Sep 28, 2007 | Active |
| GLOBAL TOWER ASSETS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Nov 8, 2007 | Active |
| GTP TOWERS I, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Dec 19, 2007 | Active |
| ATC OUTDOOR DAS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Dec 27, 2007 | Active |
| GTP TOWERS III, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Mar 10, 2008 | Active |
| ULYSSES ASSET SUB I, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Aug 8, 2008 | Active |
| GTP TOWERS V, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jan 20, 2009 | Active |
| ULYSSES ASSET SUB II, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jul 31, 2009 | Active |
| GTP INFRASTRUCTURE I, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Apr 12, 2010 | Active |
| GTP INFRASTRUCTURE II, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Apr 12, 2010 | Active |
| ATC MANAGED SITES LLCLocation not reported, FL · Active | Location not reported, FL | LLC | May 6, 2011 | Active |
| ATC ANTENNAS LLCLocation not reported, FL · Active | Location not reported, FL | LLC | May 11, 2011 | Active |
| ATC ON AIR+ LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jun 18, 2012 | Active |
| CELL TOWER LEASE ACQUISITION LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jul 20, 2012 | Active |
| GRAINCOMM I, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Dec 18, 2012 | Active |
| INSITE TOWERS DEVELOPMENT, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Feb 10, 2014 | Active |
| GLOBAL TOWER ASSETS III, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jul 11, 2014 | Active |
| ATC PONDEROSA K LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Oct 27, 2014 | Active |
| BLUE SKY TOWERS, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Oct 23, 2015 | Inactive |
| IWG-TLA TELECOM, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Nov 18, 2015 | Active |
| NEW TAMPA PATRIOTS, INC.Tampa, FL · Inactive | Tampa, FL | Corporation | Mar 21, 2006 | Inactive |