Area Code Lookup
What Area Code Is Morristown?
5 area codes serve Morristown
Morristown is served by area codes 201, 423, 802, 862, 973. It spans New Jersey and Tennessee and Vermont.
Area Codes Serving Morristown
Frequently Asked Questions
What area code is Morristown?
Morristown is served by area codes 201, 423, 802, 862, 973.
Why does Morristown 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). Morristown now has 5 area codes — 201 and 423 and 802 and 862 and 973 — covering the same or overlapping areas.
How do I call Morristown from outside the US?
To call Morristown 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.