New Manitoba area code 431

The Canadian province of Manitoba will have a new area code starting November 3, 2012. The new area code 431 will overlay NPA 204 currently covering the whole province of Manitoba with cities such as Winnipeg, Steinbach, Thompson, Winkler. Starting July 29, 2012 carriers operating in this area can choose to precede all calls with an announcement notifying callers that local calls should be dialed using the 10 digit format. 10 digit dialing will become mandatory on November 3.

See the official NANPA announcement and map of the new overlay complex (PDF document)

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