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The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state, respectively. As of July 2023, California has 38 active area codes.
Lookup area code information for ONTARIO, CA. Get the NPA NXX (area code and prefix) as well as much more data for ONTARIO, CA.
Find the local area code for Ontario, California. Our complete calling resource guide instantly gives you the the Ontario area code and local time to help you make your long distance call to Ontario, California.
4 lut 1994 · Find out the active area codes and exchanges for Ontario, CA, a city in the state of California. See the map, the phone lookup, and the company names for each area code and exchange.
3 dni temu · 905 is an area code in Ontario, CA, serving Port Hope and other locations. It follows Eastern Time (ET) with daylight saving time from March to November.
Fixed phone numbers in Canada, Ontario are comprised of a single country code (+1), a 3-5 digit area code, a 3 digit local office code (or region code), and a 4 digit line code. Making a call with the wrong country, area, or region code can be costly.
A listing of each area code in Canada plus printable area code maps. The list includes area codes by province/territory as well as by number
