Area Code

924 Area Code: Minnesota's Mayo Clinic Corridor

Rochester and southern Minnesota added the 924 overlay in 2024 — the state's first overlay, layered onto 507 as Mayo Clinic-driven growth filled the pool.

Akil Patel

Senior Writer

Jul 06, 20265 min read
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Postcard-style banner reading Greetings From 924 Minnesota, with numeral tiles and pill labels for Rochester, Mankato, Worthington, and Central Time

Rochester, Mankato, and Worthington share the 924 area code, an overlay covering the same southern Minnesota footprint as 507. Numbers began carrying 924 on August 30, 2024, following approval from the Minnesota Public Utilities Commission in March 2023 — making it the state's very first overlay and its first new area code since 2000.

This guide covers 924's counties and cities, what's driving demand in a region anchored by world-class healthcare, how calls work across such a spread-out rural footprint, which features are worth adding to a 924 line, and how to get a number of your own.

Counties and cities at a glance

Table-style graphic listing Rochester, Mankato, Worthington, and Albert Lea with their counties across southern Minnesota

CityCountyRegion
RochesterOlmstedSoutheast Minnesota
MankatoBlue EarthSouth-central Minnesota
WorthingtonNoblesSouthwest Minnesota
FairmontMartinSouth-central Minnesota
Albert LeaFreebornSoutheast Minnesota
NorthfieldRiceSoutheast Minnesota

What's driving demand across southern Minnesota

Editorial stat graphic titled What's Growing Southern Minnesota's Number Demand, with rows for Mayo Clinic, agriculture, and regional manufacturing

Southern Minnesota's economy is anchored by one of the world's best-known medical centers, plus agriculture and manufacturing:

Mayo Clinic Rochester's Mayo Clinic draws patients, staff, and researchers from around the world, driving heavy phone-line demand well beyond what the local population alone would need.

Agriculture Worthington, Fairmont, and the surrounding farmland anchor a large agricultural processing and cooperative sector.

Manufacturing Mankato and the region's smaller cities host a steady manufacturing base that keeps adding commercial lines.

Many of these southern Minnesota businesses are moving their phone systems onto UCaaS (Unified Communications as a Service) — one cloud platform for calling, video, and messaging that scales as a company adds locations across a spread-out region, the same pattern behind newer overlays like 920 in Wisconsin's Fox Valley. Contact us to set up a 924 or 507 number for your Minnesota business.

Calls and texts across a rural, spread-out footprint

Distance graphic showing Rochester and Worthington roughly 150 miles apart, both still counted as one local 924/507 call

A call from Rochester to Worthington covers well over 150 miles, yet it's still a standard local 924/507 call — the same rates and ten-digit dialing rules apply across the entire southern Minnesota region, whether it's a Mayo Clinic patient calling home or a farm cooperative coordinating with a supplier across the state.

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Features worth adding on a 924 number

Feature-card graphic showing call routing, auto-attendant, and analytics features available on a 924 southern Minnesota business line

A hosted 924 or 507 line pairs well with call routing across multiple clinic, farm-office, or shop-floor extensions, an auto-attendant for after-hours patient or customer calls, and call analytics for tracking response times. Most providers bundle these into a flat monthly plan rather than pricing each feature separately.

How to get a 924 area code number

Sign up with a VoIP provider such as My Country Mobile, search available numbers in either 924 or 507, and pick a prefix tied to the part of southern Minnesota your business serves. Most providers can port an existing number over from another carrier, activate a new line same-day, and route calls to any device without new hardware.

Time zone & how to dial a 924 number

Southern Minnesota runs on Central Time (CT) — CST (UTC −6) in winter, CDT (UTC −5) during Daylight Saving Time. Ten-digit dialing has been mandatory since January 30, 2024: dial 1, then the area code, then the seven-digit number, for every local call.

Key takeaways

  • 924 is Minnesota's first-ever overlay, covering the same southern Minnesota footprint as 507.
  • Numbers began carrying 924 on August 30, 2024, after MPUC approval in March 2023.
  • Anchors include the Mayo Clinic, regional agriculture, and manufacturing.
  • Both 924 and 507 cover identical territory at identical rates.
  • Time zone: Central (CT), with mandatory 10-digit dialing since January 2024.

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Frequently asked questions

What is the 924 area code?

It's Minnesota's first overlay, covering southern Minnesota including Rochester, Mankato, and Worthington, sharing the same footprint as 507.

Where is the 924 area code located?

Southern Minnesota, from Rochester in the southeast to Worthington in the southwest.

Is 924 a Florida area code?

No. It has never been assigned to Florida — this is strictly a Minnesota code.

What state is the 924 area code in?

Minnesota — specifically the southern part of the state, anchored by Rochester.

What time zone is the 924 area code?

Central Time Zone (CT) — CST (UTC −6) in winter and CDT (UTC −5) during Daylight Saving Time.

Why does southern Minnesota have two area codes, 924 and 507?

924 was added in 2024 as Minnesota's first-ever overlay after regulators projected 507 would run short on numbers, driven partly by Mayo Clinic-area growth.

How do I get a 924 area code number?

Sign up with a VoIP provider such as My Country Mobile, search for available numbers in either code, choose a southern Minnesota prefix, select a plan, and activate.

Written by

Akil Patel

Senior Writer

Akil writes the MCM field guides on phone numbers, dialing rules, and area-code references used by ops teams across North America.

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