North American Numbers Source-cited · ownership disclosed
Area code
639
In service
Canada · since 2013

Saskatchewan (province-wide overlay)

Area code 639 is the first overlay for the entire Canadian province of Saskatchewan, in service since May 25, 2013.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Saskatchewan (province-wide overlay)
Type
geographic
Status
in service
In service since
2013
Projected exhaust
2032 Q2

Status, dates and counts are read from NumberResearch (NANPA / CNAC / FCC records). Assignment records show initial assignees, not the carrier serving a number today.

A · Where it is

Where 639 is

All of Saskatchewan, Canada — same province-wide footprint as 306..

Communities served wholly or partly by 639:

ReginaSaskatoonPrince AlbertMoose JawSwift Current

Overlay covering the whole province.

B · Relationships

How it relates to other codes

The codes 639 was split from, spawned, or shares its area with. A split divides the map and changes some numbers; an overlay shares the same ground and changes none — what's the difference?

Overlay · 2013 306 Saskatchewan (Regina) Base code that 639 overlays; both cover all of Saskatchewan.
Overlay · 2021 474 Saskatchewan (province-wide overlay) Third member of the same Saskatchewan overlay complex.
What's changing. Overlay of 306 covering all of Saskatchewan (in service 2013-05-25). Not a split.
C · History

How 639 got here

2013-05-11
Mandatory 10-digit dialing took effect.
Source: Wikipedia
2013-05-25
Area code 639 placed into service as a province-wide overlay of 306.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
776
Prefixes available
0

Prefix-assignment counts describe allocation to carriers, not how many individual numbers are in use. Full technical records: NumberResearch ↗.

Compare 639 with another code →
Sources
Wikipedia ↗
Area codes 306, 639, and 474
NumberResearch.org ↗
Live status, dates, assignment counts and exhaust forecast — data as of 2026-09-18 (CC BY 4.0).

Place, relationships and history above are compiled by North American Numbers from the sources listed and last checked 2026-09-18. A check date is not an expert review — see how this is made. Flag an error.