Hillsborough, NC utilizes an area code overlay in which area codes 919 and 984 serve the same geographic area. The area code overlay was put into service on April 30, 2012 at which time area code 984 was created as an overlay of area code 919. Ten digit dialing (area code + seven digit number) is necessary because two different homes in the same geographic area can have the same seven digit phone number but each would have a different area code.
In addition to Hillsborough, NC area codes 919 and 984 serve north-central North Carolina that includes the Research Triangle Park and the larger cities and communities of Apex, Cary, Chapel Hill, Durham, Goldsboro, Raleigh, and Sanford in addition to many smaller communities within the service area.
Hillsborough, NC is located in Orange County and observes the Eastern Time Zone. View our Times by Area Code tool.