10 area codes assigned to New Jersey · Eastern Time
4 of New Jersey's area codes share territory with another. Codes in the same row serve the same places, so either can reach a number there — and ten-digit dialling is required throughout.
The remaining 2 codes cover their own area: 856, 908.
New Jersey went from one area code in 1947 to 10 today. A split carves territory off its parent; an overlay sits on top of it, which is why newer codes need ten-digit dialling.
Dates from the NANPA area code report, 09/19/2026.
New Jersey spans 4 LATAs — the regions a call is routed within before it becomes long-haul.
201
New Jersey
Eastern Time
Overlay · with 551
5,508 blocks · 27 rate centres
551
New Jersey
Eastern Time
Overlay · with 201
3,145 blocks · 22 rate centres
609
New Jersey
Eastern Time
Overlay · with 640
5,951 blocks · 50 rate centres
640
New Jersey
Eastern Time
Overlay · with 609
1,284 blocks · 35 rate centres
732
New Jersey
Eastern Time
Overlay · with 848
5,800 blocks · 37 rate centres
848
New Jersey
Eastern Time
Overlay · with 732
2,897 blocks · 36 rate centres
856
New Jersey
Eastern Time
5,661 blocks · 33 rate centres
862
New Jersey
Eastern Time
Overlay · with 973
3,968 blocks · 39 rate centres
908
New Jersey
Eastern Time
5,304 blocks · 48 rate centres
973
New Jersey
Eastern Time
Overlay · with 862
5,212 blocks · 43 rate centres
New Jersey has more than one area code in most regions. Enter a city to see which codes serve it, or check a specific number instead.
New Jersey has had 8 area codes activated as an overlay since 2021, sharing territory with an existing code rather than carving out new geography. Local calls in an overlaid region must be dialed with all ten digits. Earlier overlays are not listed here.
New Jersey is served by 10 area codes in the North American Numbering Plan (NANP): 201, 551, 609, 640, 732, 848, 856, 862, 908, 973. All New Jersey numbers are in the Eastern Time zone. Click any area code above to see the cities and rate centers it covers, formatted tel: link examples, and to search for available phone numbers.