D.C. has had one single area code — 202 — for more than 70 years. But it will soon be joined by a second area code, and the plan to make it happen gets a virtual public hearing at 2 p.m. Tuesday, Sept ...

Big changes to making phone calls in D.C. are about to go into effect. Phone numbers with the District’s new 771 area code will be issued starting next month, and using the area code while dialing ...