Filed Pursuant to Rule 424(b)(3)
                                          Registration Statement No. 333-112843




 Prospectus Supplement No. 21

                            [GRAPHIC OMITTED - LOGO]



                9 3/8% Senior Subordinated Secured Notes due 2009
                                       and
                             Shares of Common Stock

         This prospectus  supplement  supplements the prospectus  dated February
20, 2004 of AirGate PCS, Inc., as supplemented  by prospectus  supplement Nos. 1
through 20 dated March 5, March 8, March 10, March 12, March 24, March 30, April
1, April 14,  April 19,  April 20, April 27, May 5, May 7, May 19, June 17, July
2, July 13,  November 2,  November  26, and  December  21,  2004,  respectively,
relating  to the  sale by  certain  holders  of our 9 3/8%  Senior  Subordinated
Secured  Notes due 2009 and shares of our  common  stock.  You should  read this
prospectus  supplement  in  conjunction  with the  prospectus.  This  prospectus
supplement is qualified by reference to the prospectus except to the extent that
the  information  in  this  prospectus  supplement  supersedes  the  information
contained  in  the  prospectus.   Capitalized  terms  used  in  this  prospectus
supplement and not otherwise  defined herein have the meanings  specified in the
prospectus.

         As  previously  reported in prospectus  supplement  No. 19, Third Point
Partners  LP,  Third  Point  Offshore  Fund  Ltd.,  Points  West   International
Investments  Ltd., Banzai Partners LP, Banzai Offshore Fund Ltd. and Lyxor Asset
Management  sold an aggregate of $5,000,000 in principal  amount of notes in two
transactions  exempt  from  registration  under  the  Securities  Act to Banc of
America Securities LLC. As previously reported in prospectus  supplement No. 20,
The Bond Fund of America,  Inc.  and The Income Funds of America,  Inc.  sold an
aggregate of  $3,000,000 in principal  amount of notes in a  transaction  exempt
from  registration  under the Securities Act to Banc of America  Securities LLC.
Banc of America  Securities  LLC has previously  resold  $1,500,000 in principal
amount  of  such  notes  under  the  prospectus;  it has  resold  an  additional
$3,000,000 in principal amount of such notes under the prospectus.

         Our common  stock is quoted on The  Nasdaq  National  Market  under the
symbol  "PCSA." On February 7, 2004,  the reported  last sale price per share of
our common stock on The Nasdaq National Market was $37.03.

         Investing in the notes and our common stock involves  risks.  See "Risk
Factors" beginning on page 4 of the prospectus.
                                ________________

         Neither the Securities and Exchange Commission nor any state securities
 commission has approved or  disapproved of these  securities or passed upon the
 accuracy or adequacy of this prospectus.  Any representation to the contrary is
 a criminal offense.
                                ________________

           The date of this Prospectus Supplement is February 9, 2005