Area Code Lookup
What Area Code Is Hackensack?
2 area codes serve Hackensack · New Jersey
Hackensack is served by area codes 201, 551. It is located in New Jersey.
Area Codes Serving Hackensack
Frequently Asked Questions
What area code is Hackensack?
Hackensack is served by area codes 201, 551. It is located in New Jersey.
Why does Hackensack have multiple area codes?
As demand for phone numbers increased, NANPA added area codes through splits (dividing the region) or overlays (layering a new code over the same geography). Hackensack now has 2 area codes — 201 and 551 — covering the same or overlapping areas.
How do I call Hackensack from outside the US?
To call Hackensack from abroad, dial +1 followed by the area code and 7-digit local number (e.g. +1-201-XXX-XXXX). The +1 is the country code for all NANPA countries.