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The 502 area code has been a defining telecommunications identifier for Louisville, Kentucky, and its surrounding regions since 1947. This historic area code covers north-central Kentucky, including the vibrant city of Louisville, the state capital Frankfort, and numerous surrounding counties. However, recent developments suggest significant changes are on the horizon for this long-standing telephone numbering system.
The Origin and Evolution of Area Code 502
When first established in October 1947, area code 502 originally served the entire state of Kentucky. As the population grew and telecommunications expanded, the area code underwent several transformations. In 1954, the eastern half of the state received area code 606, and in 1999, the western half was assigned area code 270, gradually reducing 502’s original comprehensive coverage.
Counties Served by the 502 Area Code
The current 502 numbering plan area encompasses several Kentucky counties, including:
- Jefferson County (home to Louisville)
- Bullitt County
- Franklin County (including Frankfort)
- Oldham County
- Nelson County
- Scott County
- Shelby County
- Anderson County
- Carroll County
- Henry County
- Spencer County
The Impending Area Code Transition
In a significant development, the Kentucky Public Service Commission announced on August 19, 2025, that a new area code (761) will be introduced as an overlay to the existing 502 area code. This change is driven by the anticipated exhaustion of available phone numbers by the third quarter of 2027.
What Does an Overlay Mean?
Unlike previous area code splits, this will be an overlay, meaning:
- Both 502 and 761 will coexist in the same geographic region
- Existing 502 number holders will keep their current numbers
- New phone numbers will be assigned the 761 area code
- 10-digit dialing will become mandatory for all local calls
Future Projections
The North American Numbering Plan Administrator (NANPA) estimates that this new area code overlay will provide sufficient phone numbers for approximately 30 years. This projection is based on current population growth and economic development trends in the Louisville and central Kentucky region.
📞 Note: Residents and businesses should prepare for the transition by updating their contact information systems and becoming accustomed to 10-digit dialing.
The introduction of the 761 area code represents more than just a technical adjustment—it's a testament to the region's growth and the ever-evolving landscape of telecommunications in Louisville and central Kentucky.
When will the new area code be implemented?
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The new 761 area code is expected to be assigned starting in 2027, when the 502 area code is projected to run out of available numbers.
Will I need to change my phone number?
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No, existing 502 area code holders will keep their current phone numbers. Only new phone numbers will be assigned the 761 area code.
What changes will I need to make?
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You will need to start using 10-digit dialing for all local calls, including those within the same area code.
