Get a local business phone number in Dayton, TN

Area codes in Dayton

Dayton, in Rhea County, Tennessee, had a Census-estimated population of 7,796 in July 2024. All 8 exchanges NANPA lists for its rate center are in area code 423. 423 is part of an overlay with 729, so a new local number in Dayton may carry any of those codes depending on which have numbers available. Dayton is in the Eastern and Central time zone.

According to NANPA's dialing-plan data, local calls within 423 are dialed as ten digits (area code plus number) and toll calls as 1 plus ten digits.

Phone carriers in Dayton

5 carriers hold the 8 exchanges assigned to Dayton's rate center. New Cingular Wireless PCS, LLC - Ga has the most, with 2. 7 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. Holding a code means NANPA assigned that block of numbers to the carrier for this rate center; individual numbers may since have been ported elsewhere.

Exchanges (NPA-NXX) assigned in Dayton

These are the central office codes NANPA records for Dayton. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2002. 2 of the 8 were assigned in 2020 or later.

When Dayton's exchanges were assigned

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

How local numbers work in Dayton

What a caller sees as "local" is the area code plus prefix. In Dayton, those come from the DAYTON rate center, as recorded by NANPA.

Keeping an existing Dayton number costs nothing on Callata, because porting is free; a new number depends on what carriers have open in 423 when you pick it.

The local business market

Dayton is outside any Census metro or micropolitan area, so the figures below are statewide. County Business Patterns counted 150,129 business establishments in Tennessee in 2023, employing 2,971,417 people. The largest sectors by establishment count are retail trade (23,463), health care and social assistance (17,524), and other services (except public administration) (15,554).

Business phone service in Dayton

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 Dayton, 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 Tennessee, 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. On Callata the same 20 people cost $399.00 a month, less than either per-seat plan.