Get a local business phone number in Dennis, MA

Dennis area codes

Dennis, in Barnstable County, Massachusetts, had a Census-estimated population of 14,862 in July 2024. NANPA lists 13 exchanges for its rate center across 2 area codes; 508 has the most (8, 62%). 508 is part of an overlay with 774, so a new local number in Dennis may carry any of those codes depending on which have numbers available. Dennis is in the Eastern time zone.

According to NANPA's dialing-plan data, local calls within 508 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Dennis

7 carriers hold the 13 exchanges assigned to Dennis's rate center. Verizon New England INC. has the most, with 4. 9 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.

Exchanges (NPA-NXX) assigned in Dennis

Each prefix below is a block of up to 10,000 numbers that NANPA assigned to Dennis's rate center (DENNIS). The earliest assignment date recorded in the file for these codes is 2001. 2 of the 13 were assigned in 2020 or later.

When Dennis's exchanges were assigned

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

What makes a number local to Dennis

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

Keeping an existing Dennis number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 508 when you pick it.

Businesses around Dennis

Dennis is part of the Barnstable Town, MA metro area, home to 233,000 people in 2024. County Business Patterns counted 8,957 business establishments in the Barnstable Town, MA metro area in 2023, employing 76,963 people. The largest sectors by establishment count are construction (1,516), retail trade (1,402), and accommodation and food services (1,097).

Business phone service in Dennis

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.

If you already have a number in Dennis, 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.

Per-seat phone plans multiply by headcount. For the rounded average establishment size in the Barnstable Town, MA metro area, 9 users on RingCentral RingEX Core come to $270.00 a month and on Ooma Office Pro $224.55, at month-to-month list prices checked September 28, 2026. On Callata the same 9 people cost $179.00 a month, less than either per-seat plan.