Get a local business phone number in Millville, NJ

What area code is Millville, NJ?

Millville city is a Census place in Cumberland County, New Jersey, with an estimated 27,838 residents in 2024. NANPA lists 17 exchanges for its rate center across 2 area codes; 856 has the most (15, 88%). Millville is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 856 are dialed as ten digits (area code plus number) and toll calls as ten digits (area code plus number).

Who holds Millville phone exchanges

8 carriers hold the 17 exchanges assigned to Millville's rate center. New Cingular Wireless PCS, LLC - DC has the most, with 4. 12 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Millville can come from any of these blocks; once it is yours, porting lets it move between providers.

Local prefixes for Millville

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Millville. The earliest assignment date recorded in the file for these codes is 2001. 3 of the 17 were assigned in 2020 or later.

When Millville's exchanges were assigned

Assignment dates show when each block of Millville numbers was added to the local supply.

What makes a number local to Millville

NANPA ties every exchange to a rate center. For Millville that is MILLVILLE, so a number from one of these exchanges reads as local to people in and around Millville.

If your business already has a Millville number, porting it to Callata is free and keeps it on your cards, listings and vehicles.

Businesses around Millville

Millville is part of the Vineland, NJ metro area, home to 156,000 people in 2024. County Business Patterns counted 2,826 business establishments in the Vineland, NJ metro area in 2023, employing 47,846 people. The largest sectors by establishment count are retail trade (467), health care and social assistance (429), and other services (except public administration) (352).

A Millville number on Callata

Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.

If you already have a number in Millville, porting it to Callata is free. Texting from a local number requires a one-time carrier registration (10DLC, $49), and the numbers available in any area code depend on carrier inventory when you choose them.

Optional AI agents (receptionist, sales, support or scheduler) can answer calls after hours or when nobody picks up, take messages, text, email and transfer to your team. They are billed from prepaid AI minutes at $0.25 per minute, identify themselves as AI, and may only place outbound calls to people who consented, between 8am and 9pm.

A 17-person team is the benchmark here, the rounded average establishment size in the Vineland, NJ metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $510.00 a month and Ooma Office Pro $424.15. On Callata the same 17 people cost $339.00 a month, less than either per-seat plan.