Get a local business phone number in Huntsville, TN

What area code is Huntsville, TN?

With 1,741 residents in the Census 2024 estimate, Huntsville sits in Scott County, Tennessee. All 3 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 Huntsville may carry any of those codes depending on which have numbers available. Huntsville 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.

Who holds Huntsville phone exchanges

2 carriers hold the 3 exchanges assigned to Huntsville's rate center. Highland Tel. Coop, INC. has the most, with 2. 3 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.

Huntsville phone prefixes

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

Rate centers and local calling in Huntsville

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

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

Businesses around Huntsville

Huntsville 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).

A Huntsville number on Callata

For $99 a month, Callata puts a team of up to 5 on one plan ($20 for each person after that): up to 3 local numbers, unlimited inbound calls, a pooled allowance of 1,500 outbound US and Canada minutes per user, browser and cell calling, voicemail transcription with urgency triage, recorded calls with AI summaries and business-hours routing, with E911 on every number.

Porting a number you already use in Huntsville 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.

The comparison below uses 20 users, the rounded average establishment size in Tennessee. At list prices checked September 28, 2026, that is $499.00 a month on Ooma Office Pro and $600.00 on RingCentral RingEX Core. Callata comes to $399.00 a month for 20 users ($99 a month with 5 users included, then $20 per additional user), below both.