Area code 302

Area code 302 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of Delaware. It is Delaware's only area code, and was assigned in 1947 as one of the original North American area codes.

Area code map of Delaware

Despite the rapid growth in telecommunication services in the northern part of the state, area code 302 is not projected to exhaust its numbering pool until 2033.

Prior to October 2021, area code 302 had telephone numbers assigned for the central office code 988. In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.[1]

Delaware shares a LATA with Philadelphia and the Pennsylvania side of the Delaware Valley.[2]


  1. ^ "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). North American Numbering Plan Administrator. January 8, 2021. Retrieved March 9, 2021.
  2. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2017-05-19. Retrieved 2017-09-24.CS1 maint: archived copy as title (link)

External linksEdit

Delaware area codes: 302
North: 484/610
West: 410/443/667 Area Code 302 East: 856, 609/640, Atlantic Ocean
South: 410/443/667
Maryland area codes: 240/301, 410/443/667
New Jersey area codes: 201/551, 609/640, 732/848, 856, 862/973, 908
Pennsylvania area codes: 215/267/445, 223/717, 272/570, 412, 484/610, 724, 814/582, 878