604
Area code
BRITISH COLUMBIA
Canada geographic area code, in service since 1947-01-01. Part of the 236/257/604/672/778 overlay complex — ten-digit dialing required.
Created 250. Created 778. Created 236. Created 672. Created 257.
Statusin service
Introduced1947-01-01
JurisdictionBRITISH COLUMBIA, CANADA
Local dialing10D
Time zonePacific
Last verified2026-09-17
Area codes serve rate-center geographies, not municipal boundaries. “BRITISH COLUMBIA” identifies the jurisdiction, not an exact city footprint.
Change history
Recorded events for this NPA- 2000-10-27 NPA 778 To Overlay NPA 604 (Southwestern British Columbia)
- 1947-01-01Area code 604 entered service.
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2023-05-11 | PL-612 ↗ | NPA 257 to Overlay NPA 236/250/604/672/778 (British Columbia) |
| 2018-04-16 | PL-515 ↗ | NPA 672 to Overlay NPA 236/250/604/778 (British Columbia, Canada) |
| 2013-02-06 | PL-450 ↗ | NPA 236 to Overlay NPA 250/604/778 (British Columbia, Canada) |
| 2011-10-18 | PL-428 ↗ | NPA 236 to Overlay NPA 250/604/778 (British Columbia, Canada) |
| 2007-06-22 | PL-361 ↗ | Relief for British Columbia 250 Area Code and NPA 778 Boundary Change |
| 2000-10-27 | PL-246 ↗ | NPA 778 To Overlay NPA 604 (Southwestern British Columbia) |