378 Area Code Phone Directory

Information for Area Code 378

State: GA
Largest City in Area: ATLANTA

Where is Area Code 378?

Area code (378) is in the state of GA. Below, are the major cities in the area code (378).

Major Cities in 378

ATLANTA, GA (55)
MIAMI, FL (22)
MARIETTA, GA (22)
DECATUR, GA (21)
LAWRENCEVILLE, GA (18)
STONE MOUNTAIN, GA (17)
TOPEKA, KS (16)
LITHONIA, GA (14)
ALPHARETTA, GA (12)
ACWORTH, GA (11)

Zip Codes in 378