A new area code was announced on June 21, 2011 for the US state of North Carolina. The new area code 984 will overlay (cover the same area) existing NPA 919 starting April 30, 2012. As a result, all local calls in the newly formed overlay area will be dialed using the 10 digit dialing format (919 xxx xxxx or 984 xxx xxxx). The 10 digit permissive dialing period will begin on October 1, 2011 and end on March 31, 2012. During this period, local calls in area code 919 can be dialed in both 7 and 10 digit dialing formats. Starting April 1, 2012 the 10 digit dialing becomes mandatory.
Area code 919 covers the central part of North Carolina with cities such as Cary, Durham, Mount Olive, Oxford, Raleigh.
See NANPA announcement and map of new overlay area (PDF document).