The 924 area code is a Minnesota telephone area code that launched on August 30, 2024. It is an overlay code that shares the same geographic footprint as the existing 507 area code and covers southern Minnesota, including Rochester, Mankato, Winona, Austin, Albert Lea, Northfield, and Worthington. The FCC created it because 507 was projected to run out of available phone numbers by early 2025.
What Is the 924 Area Code?
The area code 924 is part of the North American Numbering Plan (NANP) and serves southern Minnesota as an overlay for the long-standing 507 area code, which has served the region since 1954. In other words, the 924 area code does not replace 507 or create a new geographic region. Instead, it adds another set of telephone numbers to the same area, helping phone carriers meet growing demand for new numbers.
Where Is the Area Code Located?
The 924 area code location covers the southern fifth of Minnesota. Major cities and communities in the region include:
History and Timeline of the 924 Area Code
| Date | Milestone |
|---|---|
| 1954 | Area code 507 is created for southern Minnesota |
| January 30, 2024 | Minnesota Public Utilities Commission approves the 924 overlay for the 507 region |
| July 30, 2024 | Mandatory 10-digit local dialing begins across the 507/924 region |
| August 30, 2024 | New phone lines and services can start being assigned 924 numbers |

Is an Overlay of 507? Do I Need to Change My Number?
Yes, 924 is strictly an overlay of 507, not a replacement. If you already have a 507 number, you keep it exactly as is. Only new phone lines, additional business numbers, or new mobile activations in the region may be issued a 924 number going forward.
Time Zone
Like the rest of Minnesota, the 924/507 region observes Central Time (CT): Central Standard Time (CST, UTC−6) in winter and Central Daylight Time (CDT, UTC−5) during daylight saving time.
How to Dial in the 924/507 Area
Because two area codes now share one region, 10-digit dialing is mandatory for every call, even calls to next-door neighbors within the same area code. Seven-digit local dialing (without the area code) no longer works in this region and will result in a recorded message asking you to redial with the area code.
Is a Call From the 924 Area Code Safe? Could It Be a Scam?
A 924 area code by itself doesn’t indicate a scam; it’s simply a legitimate Minnesota number. However, scammers routinely spoof caller ID to display any area code, including new or unfamiliar ones like 924, to appear local and trustworthy.
Frequently Asked Questions (FAQs)
Conclusion
The 924 area code california isn’t a new region or a replacement; it’s simply Minnesota’s way of keeping phone numbers available in the state’s fast-growing southern part. Paired with 507 since August 2024, it covers the same cities and counties, from Rochester and Mankato to Winona and Albert Lea, without displacing a single existing number.
