Area Code 507: Coverage, Location, and Usage - area-code -

Frequently Asked Questions

Area code 507 covers several cities in southeastern Minnesota. Major cities include Rochester, Mankato, and Winona. Other key locations within 507 are Albert Lea, Northfield, Worthington, and Fairmont.
Area code 924 was implemented as an overlay to 507 in August 2024. This was done to accommodate the increasing demand for phone numbers in southeastern Minnesota and avoid exhaustion of available numbers.
10-digit dialing (area code + 7-digit number) is mandatory for all local calls within the 507/924 overlay region.
To call outside 507, use 1+10-digit dialing (1 + area code + 7-digit number).
The overlay area code for 507 is 924. Both area codes serve the same geographic region in southeastern Minnesota.
The North American Numbering Plan Administrator (NANPA) and the Federal Communications Commission (FCC) regulate area code 507.
Area code 507 is one of the original area codes established in 1954 as part of the North American Numbering Plan (NANP).
Area code 507 offers landline, mobile, and VoIP (Voice over Internet Protocol) services.
The 507 area code region contributes significantly to Minnesota's economy through various sectors, including healthcare, agriculture, manufacturing, and education.
10-digit dialing became mandatory in the 507/924 region in anticipation of the 924 overlay to ensure seamless call routing and accommodate future growth.
You can find more information on the NANPA website (https://www.nationalnanpa.com) and the FCC website (https://www.fcc.gov).
The 924 area code overlay went into effect in August 2024.
Area code 507 is located in southeastern Minnesota, covering cities like Rochester, Mankato, and Winona. It encompasses both urban centers and rural communities within the state, exclusively within Minnesota's borders, adhering to the North American Numbering Plan (NANP) standards as part of the United States.
Within area code 507, 10-digit dialing (10D) is required, meaning you must dial both the area code and the seven-digit number, even for local calls. This practice was implemented in preparation for the 924 overlay to ensure enough phone numbers for the growing population and demand.
10-digit dialing in 507 is mandatory due to the implementation of the 924 overlay in August 2024. This overlay added a second area code to the same geographic region, requiring 10-digit dialing for all calls within the 507/924 area to ensure proper routing.
Use 1+10-digit dialing when making toll calls from area code 507 to numbers outside of the 507/924 overlay area. Dial "1" followed by the area code and seven-digit number. For local calls within the overlay, 10-digit dialing is sufficient.
The 924 overlay, implemented in August 2024, added a new area code to the same geographic region as 507 in southeastern Minnesota. This means both 507 and 924 serve the same area, requiring 10-digit dialing for all calls within the region and was the first of its kind in Minnesota.
Rochester, Minnesota, is in area code 507. It is considered one of the major cities within this area code. Along with Mankato and Winona, it sees significant use of the 507 number, while the 924 area code also serves the area since the overlay was implemented.
To reach an operator from area code 507, dial 0 followed by the 10-digit number you wish to reach (0 + area code + 7-digit number). This applies whether you're calling within or outside of the 507/924 overlay area.
Area code 507, like other North American area codes, is overseen by the North American Numbering Plan Administrator (NANPA) managed by Somos, and the Federal Communications Commission (FCC). These bodies manage area code assignments, ensure fair practices, and protect consumers.
Yes, traditional landline services are still available within area code 507, alongside mobile and VoIP options. This competitive market allows residents and businesses to choose the service that best meets their needs and budget.
Area code 507 was one of the original area codes established in 1954 when the North American Numbering Plan (NANPA) was created. It was the third area code assigned in Minnesota, after 218 and 612.
Area code 924 was added to 507 as an overlay because the NANPA projected that the 507 number would be exhausted by 2025. The overlay ensures a continued supply of phone numbers for southeastern Minnesota as the population and demand for phone service grows.
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