431
Area code
MANITOBA
Canada geographic area code, in service since 2012-11-03. Part of the 204/431/584 overlay complex — ten-digit dialing required.
Statusin service
Introduced2012-11-03
JurisdictionMANITOBA, CANADA
Local dialing10D
Time zoneCentral
Last verified2026-09-17
Area codes serve rate-center geographies, not municipal boundaries. “MANITOBA” identifies the jurisdiction, not an exact city footprint.
Change history
Recorded events for this NPA- 2012-02-23 NPA 431 to Overlay NPA 204 (Manitoba, Canada)
- 2012-11-03Area code 431 entered service (created from 204).
Planning letters & orders
Primary documents| Date | Document | Subject |
|---|---|---|
| 2022-05-31 | PL-592 ↗ | NPA 584 to Overlay NPA 204/431 (Manitoba) - amending PL-584 |
| 2022-02-25 | PL-584 ↗ | NPA 584 to Overlay NPA 204/431 (Manitoba) |
| 2012-02-23 | PL-435 ↗ | NPA 431 to Overlay NPA 204 (Manitoba, Canada) |
| 2012-01-06 | PL-433 ↗ | NPA 431 to Overlay NPA 204 (Manitoba, Canada) |
| 2011-05-06 | PL-419 ↗ | NPA 431 to Overlay NPA 204 (Manitoba, Canada) |