British Columbia, Canada
Pacific Time
12:16 AM
Area Code
604
State / Province
British Columbia
Country
Canada
Time Zone
Pacific Time
Area code 604 covers 43 cities and communities across British Columbia, based on telephone company rate center data.
Use the E.164 format for clickable phone links (RFC 3966):
<a href="tel:+16045550100">+16045550100</a><a href="tel:+16045550199">+16045550199</a>604 now shares its territory with 257. Because of this overlay, local calls in this region must be dialed with all ten digits.
Area code 604 is a North American Numbering Plan (NANP) telephone area code assigned to British Columbia, Canada. It is one of 6 area codes serving British Columbia. As population and demand for phone numbers grew, the region was divided into multiple numbering plan areas to avoid exhausting the available 7-digit number pool.
Yes. 604 is an active North American Numbering Plan (NANP) area code, currently assigned to British Columbia, Canada. It is safe to answer or dial calls using this area code.
Area code 604 covers 43 cities and communities in British Columbia, including Abbotsford, Agassiz, Aldergrove, Black Point, Boston Bar, and 38 more localities. This is based on telephone company rate center data — the geographic areas carriers use to determine local calling boundaries and to assign numbers when a business or individual requests a phone number in a specific city.
All numbers in the 604 area code observe Pacific Time (IANA timezone: America/Los_Angeles). Pacific Time is UTC−8 in winter (PST) and UTC−7 in summer (PDT). When placing a call to a 604 number from a different time zone, check the current local time above to avoid calling outside of business hours.
From within British Columbia, dial the 7-digit local number directly if calling within the same rate center, or dial 1 + 604 + 7-digit number for long-distance calls within North America. From outside the US or Canada, dial your country's international exit code followed by 1 604 XXX XXXX. The country code for both the United States and Canada in NANP is +1.
Format 604 numbers using E.164 notation as required by RFC 3966: prefix with +1 and omit dashes and parentheses (e.g., +16045550100). This format ensures tel: links work correctly on all mobile browsers and VoIP apps. See the tel: URI formatting guide for complete examples.