area code 604 is located at british columbia in usa.
area code 604 is located at british columbia in usa.
where is area code 604 located in usa?
british columbia
area code 604









































area code 604 is a telephone area code that serves southwestern british columbia: the lower mainland, sunshine coast, howe sound/sea to sky corridor, fraser valley and the lower fraser canyon regions. it primarily serves the city of vancouver and surrounding regions. 









































section::::history.
area code 604
the incumbent local exchange carrier in 604 and 778 is telus. through "number portability" and sub-allocation of all numbers in some exchanges to a competitor, many numbers in the 778 area code are now serviced by shaw cablesystems.









































on june 1, 2013, area code 236 was implemented as a distributed overlay of area codes 604, 250, and 778. it is expected to be exhausted in may 2020. as a result, area code 672 was implemented as an additional distributed overlay on may 4, 2019, to relieve area codes 604, 250, 778, and 236.









































section::::communities included.
area code 604