Exhibit 23.3
Consent of Independent Accountants
The Board of Directors
UNIsite, Inc. and Subsidiaries:
We consent to the incorporation by reference in Amendment No. 1 to
Registration Statement No. 333-50098 on Form S-3 of American Tower Corporation
of our report dated January 14, 2000, with respect to the consolidated balance
sheets of UNIsite, Inc. and Subsidiaries as of December 31, 1999 and 1998, and
the related consolidated statements of operations, redeemable convertible
preferred stock and stockholders' deficit, and cash flows for each of the years
in the three-year period ended December 31, 1999 which report appears in the
Form 8-K of American Tower Corporation dated March 30, 2000, and to the
reference to our firm under the heading "Experts" in the prospectus.
Tampa, Florida
December 11, 2000
/s/ KPMG LLP
