What is the phone number for community bank? Phone Number of Community Bank is 1-800-388-4679, 1-800-991-4280 . Community Bank N.A. is a wholly-owned subsidiary of Community Banking System.Where is community bank located? Community Bank. Community Bank, N.A. is a full-service financial institution with more than 230 locations across Upstate New York, Northeastern Pennsylvania, Vermont, and Western Massachusetts.What is the phone number for online banking? The next best way to talk to their customer support team, according to other Bank of America customers, is by calling their 800-781-5393 phone number for their Online Banking department. Besides calling, the next favorite option for customers looking for help is via 800-781-5393 for Online Banking.