Area codes in Sudbury, Ontario
Sudbury, Ontario uses 2 area codes — 705 and 249. The main Sudbury area code is 705.
Area codes serving Sudbury
Phone numbers in Sudbury are written as ten digits — for example (705) 555-0190 — and fall in the Eastern Time zone.
How Sudbury came to have 2 area codes
The original Sudbury area code is 705, in service since 1957. As the area ran low on available numbers, an overlay code was added over the same region for new phone lines: 249 (2011). Existing numbers kept their original code — an overlay never forces anyone to change their number — which is why Sudbury now uses all 2 codes and every local call is dialed with ten digits.
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Frequently asked questions
What is the area code for Sudbury?
The main area code for Sudbury, Ontario is 705. Sudbury is now served by 2 area codes in total: 705, 249.
How many area codes does Sudbury have?
Sudbury has 2 area codes: 705, 249.
Why does Sudbury have more than one area code?
As Sudbury used up the numbers available in its original area code (705, in service since 1957), additional "overlay" codes were added over the same area so new phone numbers could keep being assigned.
How do you dial a Sudbury number?
Dial all 10 digits — the area code (705 or 249) followed by the 7-digit local number. From abroad, dial +1, then the area code and number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.