Exhibit 21
Subsidiary | Jurisdiction of Incorporation or Organization | |
10 Presidential Way Associates, LLC (1) | Delaware | |
American Tower Corporation De Mexico S. de R.L. de C.V. | Mexico | |
American Tower Delaware Corporation | Delaware | |
American Tower do Brasil, Ltd. | Brazil | |
American Tower International, Inc. (2) | Delaware | |
American Tower Management Inc. | Delaware | |
American Tower PA LLC (3) | Delaware | |
American Tower Trust #1 | Massachusetts | |
American Tower Trust #2 | Massachusetts | |
American Tower LLC | Delaware | |
American Tower, L.P. (4) | Delaware | |
American Towers, Inc. | Delaware | |
ATC Connecticut, Inc. | Delaware | |
ATC GP, Inc. | Delaware | |
ATC International Holding Corp. | Delaware | |
ATC LP, Inc. | Delaware | |
ATC Midwest, LLC | Delaware | |
ATC MexHold, Inc. | Delaware | |
ATC Mexico Holding Corp. (5) | Delaware | |
ATC Presidential Way, Inc. | Delaware | |
ATC Realty Holding, Inc. | Delaware | |
ATC South America Holding Corp. | Delaware | |
ATC South LLC | Delaware | |
ATC Tower Services, Inc. | New Mexico | |
ATC Westwood, Inc. | Delaware | |
ATS-Needham LLC (6) | Massachusetts | |
ATS/PCS, LLC | Delaware | |
Carolina Towers, Inc. | South Carolina | |
Haysville Towers, LLC (7) | Kansas | |
Kline Iron & Steel Co., Inc. | Delaware | |
MATC Cellular, S. de R.L. de C.V. | Mexico | |
MATC Digital S. de R.L. de C.V. | Mexico | |
MATC Servicios, S. de R.L. de C.V. | Mexico | |
MHB Tower Rentals of America LLC | Mississippi | |
New Loma Communications, Inc. | California | |
Shreveport Tower Company (8) | Louisiana | |
Telecom Towers, LLC | Delaware | |
Towers of America LLLP (9) | Delaware | |
Towersites Monitoring, Inc. | Delaware | |
UniSite/Omni Point NE Tower Venture, L.L.C. (10) | Delaware | |
UniSite/OmniPoint FL Tower Venture, L.L.C. (11) | Delaware | |
UniSite/OmniPoint PA Tower Venture L.L.C. (12) | Delaware | |
Unisite, Inc. | Delaware | |
Verestar AG | Switzerland | |
Verestar International, Inc. | Delaware | |
Verestar Networks, Inc. (13) | Delaware | |
Verestar, Inc. | Delaware |
| (1) | 83.4105% owned by ATC Presidential Way, Inc. |
| (2) | Formerly known as ATC International Holding Corp. |
| (3) | Formerly known as American Tower Texas LLC. |
| (4) | 1% owned by ATC GP, Inc. |
| (5) | 88% owned by American Tower International, Inc. |
| (6) | 45.23% owned by American Tower, L.P. and 34.77% owned by American Towers, Inc. |
| (7) | 67% owned by Telecom Towers, LLC. |
| (8) | 50% owned by Telecom Towers, LLC. |
| (9) | 49% owned by American Tower, L.P. |
| (10) | 95% owned by Unisite, Inc. |
| (11) | 95% owned by Unisite, Inc. |
| (12) | 95% owned by Unisite, Inc. |
| (13) | Formerly known as Interpacket Networks, Inc. |