Area Code 504 History - Louisiana

Significant events for area code 504


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Year
Details
1947 The original area code for Louisiana.
1957 Area code 504 split with 318 covering all of the western area, extending to both the northern and southern borders of the state.
1998 Area code 504 split with 225 covering all of the western area of the then 504 area.
2001 Area code 504 split with 985 covering all of the northeastern area of the lower area of the state.
2007 Many areas in the southeast of New Orleans switched back to 504 after Hurricane Katrina destroyed the local telephone equipment.