Get a local business phone number in Collegedale, TN

Area codes in Collegedale

With 11,510 residents in the Census 2024 estimate, Collegedale sits in Hamilton 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 Collegedale may carry any of those codes depending on which have numbers available. Collegedale 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 Collegedale phone exchanges

3 carriers hold the 3 exchanges assigned to Collegedale's rate center. Brightspeed of Southern Tennessee, LC has the most, with 1. 3 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.

Local prefixes for Collegedale

These are the central office codes NANPA records for Collegedale. A caller seeing one of them recognizes a local number. The earliest assignment date recorded in the file for these codes is 2007. 1 of the 3 were assigned in 2020 or later.

When Collegedale's exchanges were assigned

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

Rate centers and local calling in Collegedale

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

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

Who does business near Collegedale

Collegedale is part of the Chattanooga, TN-GA metro area, home to 588,000 people in 2024. County Business Patterns counted 12,621 business establishments in the Chattanooga, TN-GA metro area in 2023, employing 243,302 people. The largest sectors by establishment count are retail trade (2,004), health care and social assistance (1,504), and other services (except public administration) (1,373).

A Collegedale 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.

If you already have a number in Collegedale, 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.

The comparison below uses 19 users, the rounded average establishment size in the Chattanooga, TN-GA metro area. At list prices checked September 28, 2026, that is $474.05 a month on Ooma Office Pro and $570.00 on RingCentral RingEX Core. On Callata the same 19 people cost $379.00 a month, less than either per-seat plan.