named Steven M. Shindler chief executive of
, effective Dec. 1.
Shindler previously served as executive vice president and chief financial officer of Nextel Communications. He joined the company in May 1996. Shindler was named acting CEO of the international division in March, while continuing to serve as financial chief.
The company, a wireless communication services provider based in Reston, Va., named John S. Brittain Jr. acting chief financial officer. Brittain has served as the company's vice president and treasurer since February 1999.