North American Numbers Source-cited · ownership disclosed
Area code
584
In service
Canada · since 2022

Manitoba (province-wide overlay)

Area code 584 is the second overlay for the entire Canadian province of Manitoba, placed into service on October 29, 2022.

The essentials Numbering data · NumberResearch · as of 2026-09-18
Place
Manitoba (province-wide overlay)
Type
geographic
Status
in service
In service since
2022
Projected exhaust
2035 Q3

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 584 is

All of Manitoba, Canada — same province-wide footprint as 204 and 431..

Communities served wholly or partly by 584:

WinnipegBrandonSteinbachPortage la PrairieThompson

Newest Manitoba overlay; numbers are distributed province-wide.

B · Relationships

How it relates to other codes

The codes 584 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 · 2022 204 Manitoba (Winnipeg) Original base code overlaid by 584.
Overlay · 2022 431 Manitoba (province-wide overlay) Earlier overlay in the same Manitoba complex.
What's changing. Overlay of 204/431 covering all of Manitoba (in service 2022-10-29). Newer code — re-check CNA/NANPA for current fill status.
C · History

How 584 got here

2022-10-29
Area code 584 placed into service as a second province-wide overlay of 204/431.
Source: Wikipedia
D · Capacity

How full it is

Prefixes assigned
20
Prefixes available
0

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

Compare 584 with another code →
Sources
Wikipedia ↗
Area codes 204, 431, and 584
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.