The request is the latest move in efforts by companies such as No. 3 U.S. mobile operator Sprint Nextel
AT&T also agreed in December to pay Qualcomm $1.93 billion for airwaves. AT&T filed last week for approval of the T-Mobile USA deal with the Federal Communications Commission.
Rivals including Sprint, Cincinnati Bell
AT&T rejected the notion that the reviews should be combined, noting that its FCC application for the Qualcomm purchase was already 77 days into a 180-day review.
These are two completely separate proceedings and should remain so, an AT&T spokesperson said in an email.
(Reporting by Sinead Carew; Editing by Tim Dobbyn and Gerald E. McCormick)