Get a local business phone number in Decatur, TN

Decatur area codes

Decatur town is a Census place in Meigs County, Tennessee, with an estimated 1,652 residents in 2024. All 4 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 Decatur may carry any of those codes depending on which have numbers available. Decatur 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.

Decatur exchanges by carrier

4 carriers hold the 4 exchanges assigned to Decatur's rate center. Bellsouth Telecomm INC d/b/a South Central Bell Tel has the most, with 1. 4 of them are pooled codes, which the holder shares with other carriers in blocks of 1,000 numbers. A business number in Decatur can come from any of these blocks; once it is yours, porting lets it move between providers.

Exchanges (NPA-NXX) assigned in Decatur

A prefix (NXX) is the three digits after the area code. Numbers starting with these prefixes are rated as local to Decatur. The earliest assignment date recorded in the file for these codes is 2004. 1 of the 4 were assigned in 2020 or later.

When Decatur's exchanges were assigned

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

What makes a number local to Decatur

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

New local numbers are drawn from carrier inventory, so the exact 423 numbers available change over time; porting an existing number is free.

The local business market

Decatur is part of the Athens, TN micropolitan area, home to 70,691 people in 2024. County Business Patterns counted 1,044 business establishments in the Athens, TN micropolitan area in 2023, employing 18,995 people. The largest sectors by establishment count are retail trade (205), other services (except public administration) (136), and accommodation and food services (116).

Business phone service in Decatur

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.

Porting a number you already use in Decatur 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 Athens, TN micropolitan 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.