UPDATE 1-AT&T says vice chairman de la Vega to retire
December 08, 2016 at 16:21 PM EST
MEXICO CITY/NEW YORK, Dec 8 (Reuters) - AT&T Inc Vice Chairman Ralph de la Vega, who played a critical role in bringing the iPhone to the U.S. market, will retire on Dec. 31, a spokesman for the wireless carrier said on Thursday.