Area code 942 — Ontario
City of Toronto (overlay of 416/647/437). Overlay assignment, in service since April 2025 — the newest Toronto overlay.
At a glance
- Country
- Canada
- Province / territory
- Ontario
- Service area
- City of Toronto (overlay of 416/647/437)
- Time zone
- Eastern Time (EST/EDT, UTC-5/-4)
- Type
- Overlay
- In service since
- 2025
- Prefixes in service
- 41 central-office codes (CNAC, 2026-07-04)
- Country code
- +1 (NANP)
Map
Exchange areas with 942 prefixes in service
Related & overlay area codes
Area code 942 shares geography with 3 other codes serving the same region. A call placed inside this overlay must dial all 10 digits regardless of which code your own line uses.
Carriers operating in 942
The following carriers hold central office (CO) code assignments within numbering plan area 942, per CNAC records as of 2026-07-04. Number portability means a phone number originally issued by one carrier may now ride on another carrier's network.
About area code 942
Area code 942 is a Canadian numbering plan area covering City of Toronto (overlay of 416/647/437). It entered service on 26 April 2025, and as of the Canadian Numbering Administrator's records dated 2026-07-04 it has 41 central-office prefixes in service. It operates under the Eastern Time (EST/EDT, UTC-5/-4) time zone.
942 is the third overlay layered on the City of Toronto, joining 647 and 437 on top of the original 416. Every prefix in service so far is recorded against the Toronto exchange.
Numbers in the 942 NPA are issued in central office (CO) blocks of 10,000 to local exchange carriers, who then assign them to subscribers. Because Canada uses a competitive carrier model under CRTC oversight, multiple carriers — both incumbent and competitive — can hold blocks within 942. The current carrier of record for any specific number can be looked up via the Canadian Local Number Portability Consortium, but the originally issued carrier is no longer a reliable signal of who actually serves that line.
To call a number in 942 from outside Canada and the United States, dial your country's international access prefix, then +1 942 followed by the 7-digit local number. Within the NANP, simply dial 1 followed by all 10 digits.
Frequently asked questions
Where is area code 942?
Area code 942 serves City of Toronto (overlay of 416/647/437) in Ontario, Canada.
What time zone is 942?
Numbers in 942 are in the Eastern Time (EST/EDT, UTC-5/-4) time zone.
Is 942 a toll-free or mobile-only code?
No. Canadian area codes are geographic — they apply to both landline and mobile numbers in City of Toronto (overlay of 416/647/437). Toll-free codes in the NANP (800, 833, 844, 855, 866, 877, 888) are a separate category.
Why do I see calls from 942 if I do not know anyone there?
Two reasons. First, mobile portability: someone who moved away from Ontario can keep their 942 number anywhere in the world. Second, scam callers frequently spoof Canadian area codes to appear local. If you do not recognise the number, it is generally safe to let it go to voicemail.