(Bethesda, MD) — A new area code is coming to Maryland next year. The Public Service Commission made 227 official yesterday. It will cover the same areas that currently use the 240 and 301 area codes which are Allegany, Charles, Garrett, Montgomery, Prince George’s, St. Mary’s, Washington, Frederick, Howard, Carroll and Anne Arundel counties. PSC confirms those customers can keep their area codes and phone numbers.
