Mr. J. B. Carter is an Independent Non-Executive Director at Colony Capital, Inc., an Independent Director at Assurant, Inc. and a Chief Financial Officer, Director & Executive VP at Sprint Corp. He is on the Board of Directors at Colony Capital, Inc., Assurant, Inc., Sprint Corp., Zayo Group LLC, MetroPCS Finance, Inc., MetroPCS Michigan LLC and Zayo Group Holdings, Inc. Mr. Carter was previously employed as a Chief Financial Officer & Executive Vice President by MetroPCS Wireless, Inc., a Vice Chairman & Chief Financial Officer by MetroPCS Communications, Inc., a Chief Operating & Financial Officer by PrimeCo PCS, a Chief Financial Officer & Controller by PrimeCo Personal Communications LP, a Chief Financial Officer & Executive Vice President by T-Mobile US, Inc., a Chief Financial Officer & Executive Vice President by T-Mobile USA, Inc., and a Member-Alumni Board by The Leeds School of Business. He also served on the board at Research Now Group, Inc. He received his undergraduate degree from The University of Colorado.