Canada · Province

Ontario fax numbers and area codes

Ontario has 19 area codes in service, and FaxToFax had local fax numbers in 15 of them when we last checked. Send and receive faxes in your browser, with no fax machine or phone line.

Get an Ontario number See pricing ›

Area codes19
In stock15
Time zoneEastern & Central
CapitalToronto

Ontario on the map of Canada. Select any province or territory to open its page.

Local fax numbers

Ontario area codes

Ontario has 19 area codes. Codes on the same line cover the same place (overlays), so any of them works for a local number there.

416None in stock
647In stock
437In stock
942None in stock · new 2025

Toronto All 4 codes cover the same area.

905In stock
289In stock
365In stock
742None in stock

Mississauga, Brampton, Hamilton, Markham, Oshawa, St. Catharines and the rest of the GTA All 4 codes cover the same area.

519In stock
226In stock
548In stock
382In stock · new 2023

London, Windsor, Kitchener-Waterloo, Guelph and southwestern Ontario All 4 codes cover the same area.

613In stock
343In stock
753In stock

Ottawa, Kingston, Cornwall and eastern Ontario All 3 codes cover the same area.

705In stock
249In stock
683None in stock

Sudbury, Barrie, Peterborough, Sault Ste. Marie, North Bay and central and northeastern Ontario All 3 codes cover the same area.

807In stock

Thunder Bay, Kenora and northwestern Ontario

Local fax numbers in stock None in stock right now

Newest: 942 (April 2025, added to 416, 647 and 437) and 382 (June 2023, added to 519, 226 and 548).

Area codes in service from NANPA, the North American Numbering Plan Administrator (October 22, 2026). Stock checked October 22, 2026; it changes daily, and the number picker shows what’s available when you sign up.

Sending a fax to Ontario

Upload a PDF, PNG or JPG, or write a cover page with your letterhead.
Choose Canada as the recipient’s country and type the 10-digit fax number, for example (647) 555-0123.
Check the number and send. You get a time-stamped delivery receipt.

Each page sent to Ontario uses 1 plan page from a US or Canadian number, and a fax that isn’t delivered doesn’t use any.

Receiving faxes in Ontario

Choose a number with an Ontario area code (226, 249, 289, 343, 365, 382 and more) or a toll-free number. People fax it from any fax machine, and each fax lands in your private, encrypted FaxToFax inbox with an alert.

Moving an existing number to FaxToFax (porting) isn’t available yet.

Time zone. Ontario is on Eastern Time, except the far northwest, including Kenora and Fort Frances, which is on Central Time. If you fax Ontario offices from another time zone, schedule faxes for their business hours.

Who it’s for

Healthcare and legal offices in Ontario

Healthcare ›

Clinics, labs and pharmacies in Ontario still exchange referrals, records requests and prior authorizations by fax. Health information custodians in Ontario follow the Personal Health Information Protection Act (PHIPA). FaxToFax tracks PHIPA as one of its compliance programs; the Trust Center shows its current status. FaxToFax stores faxes encrypted, records every view and download in an audit log, and deletes faxes on the schedule you set.

Legal ›

Law offices fax notices, signed documents and records requests when they need a sender, a time and a receipt. Lawyers in Ontario answer to the Law Society of Ontario, whose code of conduct requires them to keep client information confidential. FaxToFax puts your letterhead on cover pages, keeps a delivery receipt with every fax, and limits who can open faxes with access roles.

FaxToFax provides tools that support compliance; each office remains responsible for its own obligations. The Trust Center lists the programs we currently meet.

Ontario fax FAQ

Can I get an Ontario fax number?

Yes. When we last checked (October 22, 2026), FaxToFax had local fax numbers in 15 of the 19 area codes Ontario uses: 226, 249, 289, 343, 365, 382, 437, 519, 548, 613, 647, 705, 753, 807 and 905. You pick your number when you sign up, and you can choose a toll-free number instead.

What area codes does Ontario use?

Ontario has 19 area codes in service: 226, 249, 289, 343, 365, 382, 416, 437, 519, 548, 613, 647, 683, 705, 742, 753, 807, 905 and 942.

What time zone is Ontario in?

Ontario is on Eastern Time, except the far northwest, including Kenora and Fort Frances, which is on Central Time.

How do I send a fax to Ontario?

In FaxToFax, choose Canada as the recipient’s country and type the 10-digit fax number, for example (647) 555-0123. Each page uses 1 plan page from a US or Canadian number, and you get a time-stamped delivery receipt.

Can I move my current Ontario fax number to FaxToFax?

Not yet. Moving an existing number (porting) isn’t available yet, so you’d choose a new FaxToFax number and give it to the people who fax you.

Neighbouring provinces and territories and across the border

All 13 provinces and territories › · Canada fax numbers › · All countries ›