856-974 Prefix — Mountholly, New Jersey

Phone numbers starting with 856-974 are based in Mountholly, New Jersey, primarily served by Metro By T-Mobile.

Recently looked-up numbers in 856-974

• 856-974-9704

More about this region

Area code 856 directory · About area code 856 · Get a NJ phone number

Last updated: July 12, 2026