what area code is 778
Area codes 778 and 236 are overlay area codes for the Canadian province of British Columbia.It was created on November 3, 2001 as a concentrated overlay of area code 604, the area code for the Lower Mainland.It originally served only Metro Vancouver and the Fraser Valley Regional District, with the rest of the Lower Mainland continuing to use only 604.fter September 12, 2008, 7-digit dialing ceased to function. This was intended as a long-term solution, but within four years 604, 250 and 778 were close to exhaustion once again. To solve the problem, area code 236 went into effect as an additional overlay for the province on June 1, 2013.