CTIA adds Nokia Chief Strategy and Technology Officer Nishant Batra to its board ... Lumen Technologies adds Community President-CEO Diankha Linear to its board, expanding it to 12 members ... Glenn Reynolds, ex-ATIS and former NTIA, joins Nokia as vice president-government affairs for North America and head-Washington office ... Bain & Co. promotes Hong Kong partner Jason Ding to managing director-Greater China, effective April 1, succeeding Weiwen Han, returning to his role in Bain's Greater China private equity, consumer products and retail practices ... Nextdoor co-founder Nirav Tolia will return to the company as CEO, president and chair, replacing Sarah Friar in those roles following a transition in Q2.