Cities in area code 856

32 localities · NANPA data, current as of July 28, 2026.

These are the cities and communities covered by 856 in New Jersey. "Covered" means the locality is a rate center holding 856 prefixes; the largest are Camden, Haddonfield, Moorestown.

Ranked by active prefixes, the code's territory runs through Camden, Haddonfield, Moorestown, Vineland, Woodbury, Merchantville, Haddon Heights and Williamstown, and 23 smaller communities down to single-prefix localities.

29 of the localities fall within FCC top-100 metropolitan statistical areas; the rest are smaller communities.

11 of these localities are also reachable through other area codes — overlay territory where the same place answers to several codes.

All of the code's territory keeps Eastern time.

Remember that people keep numbers when they relocate, so a 856 number is a where-it-was-issued fact, not a where-they-are fact.

FAQ

What is the biggest city in area code 856?

Camden holds the most active prefixes (80), making it the code's largest numbering locality.

How many places does 856 cover?

32 rate centers in New Jersey hold active 856 prefixes, from Camden down to communities with a single prefix.

Does a 856 number guarantee the caller lives in one of these places?

No — the tables show where number blocks were issued. Porting and VoIP let people keep or acquire numbers anywhere.