Area Code 403

WhereCall is here to provide you with the most information on the area code 403. This area code contains 0 prefixes and is not in jeopardy of exceeding the known supply of central office codes during the planning/implementation interval for relief.


NPA Information
Area Code (NPA)403
In Jeopardy?No
Is Assigned?Yes
Assignment Date01 Jan 1947
In Service?Yes
In Service Date01 Jan 1947
OverlayYes
Overlay Complex403/587/780
Predominant Timezone(s)UTC-07:00
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