Don BranDon on Instagram: "Dallas History. Area Code 972: Introduced in 1996 to serve areas surrounding Dallas, initially as a split from the original 214 area code. Area Code 469: Introduced in 1999 as an overlay to both 214 and 972, meaning it covers the same geographic area as those two codes. Area Code 945: Introduced as a new overlay area code in 2021, meaning it will be used alongside the existing 214, 469, and 972 area codes for new phone number assignments. I always thought 214 was for c