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FIRST AMENDMENT TO
MASTER TOWER SPACE RESERVATION AND LICENSE AGREEMENT AND TO
MASTER TOWER SPACE LICENSE AGREEMENT
THIS FIRST AMENDMENT TO MASTER TOWER SPACE RESERVATION AND LICENSE AGREEMENT AND TO
MASTER TOWER SPACE LICENSE AGREEMENT (" First Amendment ") is entered into and made effective as of the latter
signature date hereof (the " Effective Date ") by and between AMERICAN TOWERS, L.P. , a Delaware limited partnership ("
American Tower "), AMERICAN TOWERS, INC. , a Delaware corporation (" ATI " ), iPCS WIRELESS, INC. , a Delaware
corporation (" iPCS ") and HORIZON PERSONAL COMMUNICATIONS, INC. , an Ohio corporation (" Horizon " ).
A. American Tower and iPCS entered into that certain Master Tower Space Reservation and License Agreement dated
July 20, 2002 (the " MLA "), pursuant to which American Tower licenses to iPCS space on communication towers and
ground space then owned or operated by American Tower and/or its affiliates.
American Tower owns, leases, subleases, or has other property interests in Communications Towers, as defined in the
ATI and Horizon entered into that certain Master Tower Space License Agreement dated June 1, 2001 ("
ATI/Horizon MLA ").
D. American Tower and iPCS desire to extend the term of the MLA through December 31, 2007.
ATI and Horizon desire to make a change to the terms of the ATI/Horizon MLA, as more specifically set forth herein.
NOW, THEREFORE, in consideration of the mutual covenants contained herein, the receipt and sufficiency of which is
hereby acknowledged, American Tower, ATI, iPCS and Horizon agree to the following:
1. MLA Term . Effective as of February 18, 2005, Section 4.1 of the MLA is hereby amended by deleting the first
sentence thereof and replacing such sentence with the following:
"The term of this Agreement (the "Term") shall commence on the date first written above ("Effe