Discovering the truth about a phone number, email, or address history can be eye-opening, please use this tool with caution.Ontario area codes
Ontario is served by 20 area codes under the North American Numbering Plan. Canada shares country code +1 with the United States. Click any code below to see coverage, community-reported scam numbers, and to run a reverse phone lookup on any ON number.
Who’s Texting & Calling? Enter a Number
See the owner’s name, carrier, location, and any scam reports in seconds. (May reveal social media profiles, online footprints, pics and more.)
100% confidential lookup - the person you search will not know.
All Ontario area codes (20)
Sorted by code. Codes marked "coming soon" are assigned to Ontario but do not have a dedicated page yet.
About Ontario phone numbers
Ontario phone numbers are 10-digit North American Numbering Plan numbers under country code +1, the same system used across Canada and the United States. The first three digits are the area code, listed above. Newer overlay codes cover the same geography as an existing code once its numbers run out, which is why major Ontario metro areas may have several codes covering the same neighbourhoods.
If you're getting calls from an unfamiliar ON number, use the reverse-phone lookup at the top of this page. Scam callers frequently spoof local codes to appear trustworthy - the lookup shows carrier, location, and any recent scam reports on that specific number.