Get a local business phone number in Wilmington, MA

What area code is Wilmington, MA?

With 23,802 residents in the Census 2024 estimate, Wilmington sits in Middlesex County, Massachusetts. All 25 exchanges NANPA lists for its rate center are in area code 978. 978 is part of an overlay with 351, so a new local number in Wilmington may carry any of those codes depending on which have numbers available. Wilmington is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 978 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Wilmington

10 carriers hold the 25 exchanges assigned to Wilmington's rate center. Verizon New England INC. has the most, with 6. 22 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. The table counts codes by the operating company NANPA assigned them to, not by who serves each number today.

Local prefixes for Wilmington

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Wilmington. The earliest assignment date recorded in the file for these codes is 2001. None were assigned in 2020 or later.

How local numbers work in Wilmington

Phone numbers are tied to a rate center, the local calling area used to decide whether a call is local or toll. Wilmington's numbers are rated to the WILMINGTON rate center in NANPA's records. A business number from one of the prefixes above shows up on customers' phones as a Wilmington number.

Keeping an existing Wilmington number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 978 when you pick it.

Who does business near Wilmington

Wilmington is part of the Boston-Cambridge-Newton, MA-NH metro area, home to 5.0 million people in 2024. County Business Patterns counted 133,807 business establishments in the Boston, MA-NH metro area in 2023, employing 2,681,704 people. The largest sectors by establishment count are professional, scientific, and technical services (17,803), retail trade (15,568), and health care and social assistance (15,127).

Business phone service in Wilmington

Callata is a business phone system priced at $99 a month with 5 users included, then $20 per additional user. Callata Office includes up to 3 local business numbers, unlimited inbound calling, 1,500 pooled outbound US and Canada minutes per user each month, a browser softphone that can also ring your cell, voicemail with transcription, call recording with AI summaries, business-hours routing and E911 on every number.

Porting a number you already use in Wilmington is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.

AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Boston, MA-NH metro area, 20 users on RingCentral RingEX Core come to $600.00 a month and on Ooma Office Pro $499.00, at month-to-month list prices checked September 28, 2026. Callata comes to $399.00 a month for 20 users ($99 a month with 5 users included, then $20 per additional user), below both.