Get a local business phone number in Dauphin Island, AL

Dauphin Island area codes

Dauphin Island town is a Census place in Mobile County, Alabama, with an estimated 1,923 residents in 2024. All 4 exchanges NANPA lists for its rate center are in area code 251. Dauphin Island is in the Central time zone.

According to NANPA's dialing-plan data, local calls within 251 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Dauphin Island exchanges by carrier

2 carriers hold the 4 exchanges assigned to Dauphin Island's rate center. Onvoy, LLC - Al has the most, with 3. 4 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 Dauphin Island

These are the central office codes NANPA records for Dauphin Island. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2018. 2 of the 4 were assigned in 2020 or later.

When Dauphin Island's exchanges were assigned

The table groups Dauphin Island's exchanges by the decade NANPA recorded them as assigned.

Rate centers and local calling in Dauphin Island

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

Keeping an existing Dauphin Island number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 251 when you pick it.

Businesses around Dauphin Island

Dauphin Island is part of the Mobile, AL metro area, home to 412,000 people in 2024. County Business Patterns counted 8,960 business establishments in the Mobile, AL metro area in 2023, employing 157,810 people. The largest sectors by establishment count are retail trade (1,468), other services (except public administration) (960), and health care and social assistance (863).

A Dauphin Island number on Callata

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 Dauphin Island 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.

An 18-person team is the benchmark here, the rounded average establishment size in the Mobile, AL metro area. Billed per seat at month-to-month list prices (checked September 28, 2026), RingCentral RingEX Core costs $540.00 a month and Ooma Office Pro $449.10. Callata comes to $359.00 a month for 18 users ($99 a month with 5 users included, then $20 per additional user), below both.