Mobile, Alabama
Area code 251
Where Is Area Code 251?
Area code 251 is in southwestern Alabama. It serves the Gulf Coast region and much of the southern part of the state west of the Florida line. The area code is centered on Mobile, the largest city in the 251 region.
Area code 251 covers Mobile, Baldwin, Washington, Clarke, Monroe, Conecuh, and Escambia counties. Major cities and communities in the area include Mobile, Daphne, Fairhope, Foley, Bay Minette, Atmore, Jackson, Monroeville, Thomasville, and Evergreen. It also serves smaller Gulf Coast communities such as Gulf Shores and Orange Beach.
This area includes Mobile Bay, the Port of Mobile, and part of Alabama's Gulf Coast. The region is known for Interstate 10, the Mobile-Tensaw Delta, and access to the Gulf of Mexico. It also includes historic downtown Mobile and beach areas in Baldwin County.
History of Area Code 251
Area code 251 was created on June 18, 2001. It was split from area code 334, which had served the southern half of Alabama after a 1995 split from 205. The split created a separate code for Mobile and the surrounding southwest Alabama region.
Area code 251 has not been overlaid by another area code. It remains the main geographic area code for Mobile and much of Alabama's southwest corner. The split reflected continued growth in population, businesses, and demand for new phone numbers in coastal and southern Alabama.
Key Facts About Area Code 251
- Area code 251 is a geographic telephone area code in the state of Alabama.
- The largest city in area code 251 is Mobile, Alabama.
- Area code 251 was put into service on June 18, 2001.
- Area code 251 was created in a split from area code 334.
- Area code 251 serves southwestern Alabama, including Mobile and Baldwin counties.
- Area code 251 is in the Central Time Zone.
- The University of South Alabama in Mobile is one of the major universities in the 251 area.
- The 251 region includes the Port of Mobile and Alabama's Gulf Coast communities such as Gulf Shores and Orange Beach.
Frequently Asked Questions
What state is area code 251 in?
Area code 251 is in Alabama.
What major cities use area code 251?
Major cities in area code 251 include Mobile, Daphne, Fairhope, Foley, Bay Minette, Atmore, Jackson, Monroeville, Thomasville, and Evergreen.
Is area code 251 a toll-free number?
No. Area code 251 is a geographic area code for southwestern Alabama.
Last updated: April 2026