Where is area code 604?
NANPA assigns 604 to British Columbia. The source report does not provide city-level coverage for this record, so this page does not guess a particular city. Browse other codes in British Columbia
Verified area-code information
604 Area Code
604 is an in-service Canada area code assigned to British Columbia. It identifies a numbering region, not a caller’s current location.
Official Numbering RegionVerified NANPA Assignment
British ColumbiaArea Code 604
Country: Canada•Time Zone: Pacific•Overlays: 236, 257, 672, 778•In Service: 01-Jan-1947
- Numbering country
- Canada
- Area-code type
- Geographic
- Numbering region
- British Columbia
- Time-zone information
- Pacific
- In service since
- 01-Jan-1947
View the official area-code maps ↗. Maps show numbering areas, not a caller’s location.
Time zones associated with 604
NANPA lists Pacific for this numbering area. These are numbering-region time zones, not a caller’s current location.
Pacific time
An area code can span more than one time zone. Local daylight-saving rules may differ.
What area codes overlay 604?
The NANPA source lists 236, 257, 672, 778 in the same overlay complex. An overlay can serve the same broad numbering area; individual numbers still do not prove where a person is.
How do you dial a 604 number?
Use the North American country calling code +1 followed by the three-digit area code and seven-digit local number. For example, write the pattern as +1 604 XXX XXXX. Local dialing rules and charges depend on your location and provider. Check a supported dialing format or check NANPA’s 10-digit dialing list.
Canadian prefixes in 604
The Canadian Numbering Administrator listed 781 in-service prefixes for this area code on 2026-09-28. These are exchange-area and company assignments, not active-number or current-carrier records.
Exchange areas with the most listed prefixes
| Exchange area | In-service prefixes |
|---|---|
| Vancouver | 343 |
| New Westminster | 65 |
| Richmond | 41 |
| Abbotsford | 30 |
| North Vancouver | 26 |
Companies with the most listed assignments
| Assignment company | In-service prefixes |
|---|---|
| TELUS | 400 |
| Shaw Telecom Inc. | 83 |
| TELUS Mobility | 79 |
| Rogers Communications Canada Inc. (Wireless) | 72 |
| Fido Solutions Inc. | 34 |
604 Canadian prefix lookup
781 in-service prefixes are listed for this area code. Check a Canadian area code and prefix against CNA assignments. The exchange area and company describe the original code assignment, not where a caller is now.
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Check a number with area code 604
Enter the full ten-digit number to see its structure and formatting. The check stays in your browser.
Check a 604 number
Enter a 10-digit +1 North American number. We check its structure and area-code record, not the caller’s identity or whether the line is active.
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Received an unfamiliar call?
The displayed number may be spoofed. Do not rely on an area code as proof of caller identity. If the caller claims to represent a business, end the call and contact that business using a number you found independently.
Common questions about 604
What time zone is area code 604 in?
604 is assigned to British Columbia, and the NANPA record associates it with Pacific time. A phone number does not reveal its owner’s current time zone. The clock above uses a representative time zone for the numbering area.
Does 604 mean the caller is in British Columbia?
No. An area code is an assignment, and a person can travel, move, use internet calling, or display a spoofed number.
Can this page identify who called?
No. OfficialAreaCode has no live subscriber directory or spam-report database.