Area code 587: Alberta
Area code 587 is a Canadian province area code for Alberta, on Mountain Time. It has 779 prefixes in service across 137 exchange areas, the largest being Calgary, Edmonton and Fort McMurray. It shares its area with 368, 403, 780 and 825, so local numbers there can start with any of them. Local calls there take 10 digits.
Local time in area code 587
America/Edmonton
Prefixes in service
779 of 792 possible
137 exchange areas
Area code 587 facts
| Location | Alberta, Canada |
|---|---|
| Time zone | Mountain Time |
| Overlays | 368, 403, 780, 825 |
| Overlay of | 780 |
| In service since | September 19, 2008 |
| Local calls | 10 digits; toll calls 1 + 10 digits |
| Carrier | Not shown. An area code is where a number was issued; numbers port between carriers. Check line type |
Which cities and towns use area code 587?
The Canadian Numbering Administrator records each prefix against an exchange area, usually named after its main town. These are the 587 exchange areas with the most prefixes in service. 125 smaller ones aren't listed.
| Exchange area | Prefixes |
|---|---|
| Calgary | 195 |
| Edmonton | 124 |
| Fort McMurray | 25 |
| Red Deer | 20 |
| Grande Prairie | 16 |
| Lethbridge | 15 |
| Medicine Hat | 14 |
| Sherwood Park | 10 |
| Banff | 10 |
| Airdrie | 10 |
| Leduc | 10 |
| High River | 8 |
Source: Canadian Numbering Administrator CO code status, file dated 2026-10-16. Each prefix holds up to 10,000 numbers.
How do I dial a 587 number?
NANPA's dialling plan for 587: local calls inside the code take 10 digits, toll calls 1 + 10 digits. From another area code, dial 1 first. From abroad, use +1. The examples use 555-0147, from a range reserved for fictional numbers.
| Local call inside 587 | 587-555-0147 |
|---|---|
| From another US or Canadian area code | 1-587-555-0147 |
| From outside North America | +1 587 555 0147 |
| E.164, for CRMs and SMS tools | +15875550147 |
When did area code 587 start?
Area code 587 went into service on September 19, 2008 as an overlay of 780. Today 587, 368, 403, 780 and 825 cover the same area as an overlay, which is why 10-digit dialling is needed for local calls there.
Tools for 587 numbers
- Area code lookup
Look up any code or a whole list of numbers, or find the codes for a state or city.
- Area code time zone
Local time for a list of numbers, with a callable-now flag.
- NPA-NXX lookup
Rate center and state for one prefix, a level below the area code.
- TCPA calling hours checker
Whether it's inside the federal 8 a.m. to 9 p.m. calling window there now.
Next step
A 587 number tells you where it was issued, not what it is now.
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Area code 587 questions
- What province is area code 587?
- Area code 587 is in Alberta, Canada. Its largest exchange areas by number of prefixes are Calgary, Edmonton, Fort McMurray, Red Deer and Grande Prairie.
- What time zone is area code 587 in?
- Mountain Time.
- What area codes overlay 587?
- 368, 403, 780 and 825. An overlay adds a new code to the same area instead of splitting it, so neighbours can have different area codes and local calls need 10 digits.
- When did area code 587 start?
- Area code 587 went into service on September 19, 2008 as an overlay of 780.
- Is a 587 number a cell phone or a landline?
- The area code can't tell you. In the US and Canada mobiles, landlines and VoIP lines share area codes and prefixes, and numbers move between carriers and line types. Only a live line-type lookup answers it for one number.
- How many phone numbers does area code 587 have?
- 779 of its 792 possible prefixes are in service, and each prefix holds up to 10,000 numbers. That counts prefixes assigned to carriers, not numbers in use.
Other area codes in Alberta
Sources
Location, overlays, in-service date and dialling plan: NANPA NPA database, file dated 10/16/2026. Prefixes and exchange areas: Canadian Numbering Administrator CO code status, 2026-10-16. Time zones mapped to the IANA time zone database. By the SimpleVerifier Team; how we build these pages.