A Massachusetts native, Legere graduated from Saint Bernard"s Central Catholic School in Fitchburg, Massachusetts and aspired to be a gym teacher, before he figured out what he would likely get paid and decided to study business instead. He received a Bachelor of Business Administration from the University of Massachusetts, an Master of Surgery, as an Alfred P. Sloan fellow, at the Massachusetts Institute of Technology Sloan School of Management and an Master of Business Administration from Fairleigh Dickinson University. He also completed Harvard Business School"s Program for Management Development (Program for Management Development ).
He previously served as an executive for American Telephone & Telegraph Company, Dell, Global Crossing, and serves on the CTIA board of directors. Legere was appointed Chief Executive Officer of T-Mobile United States of America (now T-Mobile United States) in September 2012, and has since been noted for T-Mobile"s "Un-carrier" approach to contract-free wireless networks. He first worked in telecommunications at New England Telephone.
Legere then spent nearly twenty years at American Telephone & Telegraph Company, where he spent a period working under Daniel Hesse, formerly Chief Executive Officer of Sprint Corporation.
He served as chief executive for American Telephone & Telegraph Company Asia from April 1994 to November 1997, and also spent time as head of American Telephone & Telegraph Company Global Strategy and Business Development. From 1997 to 1998, he served as President of Worldwide outsourcing of American Telephone & Telegraph Company solutions.
Legere then worked as senior vice president of Dell and president and chief operations officer for Dell"s Operations in Europe, the Middle East and Africa and president, Asia-Pacific for Dell from 1998 to February 2000. Prior to joining T-Mobile, he was Chief Executive Officer of Asia Global Crossing from February 2000 to January 2002, and Chief Executive Officer of Global Crossing from October 2001 to October 2011 where he led the organization through bankruptcy and eventually an acquisition by Level 3 Communications.
His leadership at Global Crossing was not without controversy.
He serves on the CTIA board of directors and has been a director of the CTIA wireless internet caucus, since October 2012. He served as a director of Global Crossing, from October 2001 to December 2003, and Sanrise Group and Asia Global Crossing, from April 2000 to March 2002. He has also served as a director of Ontario Semiconductor.
After the EFF accused T-Mobile"s BingeOn service of violating Netto neutrality, Legere initially responded in a confrontational manner, but later apologized to the EFF.
BingeOn, a service which throttles bandwidth but allows for unlimited streaming, does not apply this limit to other corporations which have agreements with T-Mobile, prompting outcry from the EFF and Net Neutrality advocates.
Legere responded by posting what is described by journalists as a "curse filled hate rant against the EFF" Wired Magazine analyzed BingeOn and found the following: "T-Mobile has insisted that it “optimizes” videos for Binge On customers, but the EFF found that T-Mobile is actually downgrading all connections to video sites, including those that aren’t Binge On partners. As a result, users are typically served 480p versions of nearly all videos, since sites like YouTube and Netflix will automatically route customers with slow connections to the lower quality stream.".