RESTON, Va., Oct. 4, 2012 /PRNewswire/ -- NII Holdings, Inc. [NASDAQ: NIHD], a provider of differentiated mobile communications services under the Nextel brand in Latin America, today announced it has appointed Juan R. Figuereo as executive vice president and chief financial officer, effective October 17, 2012. Mr. Figuereo will replace Gokul Hemmady, who was recently named NII Holdings' chief operating officer.