Area Code 548
Area code 548 covers London and nearby cities including Kitchener-Waterloo, Windsor, Brantford in Ontario, in the Eastern Time.
Area code 548 quick facts
| Location | London, Ontario |
|---|---|
| Time zone | Eastern Time |
| In service | 2016-06-04 |
| Overlay codes | 226, 382, 519 |
| Nearby codes | 226, 382, 519, 416, 942, 437 |
| Carrier coverage | 512 prefixes; 15% wireless |
| Data current as of | August 2, 2026 |
Is a call from 548 a scam? Who called me from 548?
Cities in area code 548
London, Kitchener-Waterloo, Windsor, Brantford, Guelph, Sarnia, Listowel, Mount Forest, Leamington, Chatham, Essex, St Thomas
Area codes by city
Carriers in area code 548
Area code 548 spans 512 prefixes, about 15% wireless. Top carriers: FIBERNETICS CORPORATION, ROGERS COMMUNICATIONS CANADA INC., IRISTEL INC. - ON, ISP TELECOM, INC.. Look up the carrier and line type for a 548 number.
Other Ontario area codes
- 226 — London
- 249 — Sudbury
- 289 — Hamilton
- 343 — Ottawa
- 365 — Markham
- 382 — London
- 416 — Toronto
- 437 — Toronto
- 519 — London
- 613 — Ottawa
- 647 — Toronto
- 683 — Lindsay
- 705 — Barrie
- 742 — Brampton
- 753 — Ottawa
- 807 — Thunder Bay
- 905 — Hamilton
- 942 — Toronto
Nearby area codes
Frequently asked questions
Where is area code 548?
Area code 548 covers London and nearby cities including Kitchener-Waterloo, Windsor, Brantford in Ontario, in the Eastern Time.
What cities use area code 548?
Area code 548 serves London, Kitchener-Waterloo, Windsor, Brantford, Guelph, and 7 other communities in Ontario.
What time zone is area code 548 in?
Area code 548 is in the Eastern Time (America/Toronto).
How do you dial a 548 number?
Dial all 10 digits: 548 followed by the 7-digit local number. From abroad, dial +1 548 and the local number.
Is a call from area code 548 a scam?
A 548 number is geographically tied to Ontario, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.
Is 548 a country code?
No. 548 is a Canadian area code (a domestic 3-digit code), not a country code. The country (calling) code for Canada is +1, shared across the North American Numbering Plan. So a full 548 number written for international dialing looks like +1 548 followed by the 7-digit local number.
Sourced from the official NANPA (North American Numbering Plan Administrator) numbering database, current as of August 2, 2026. Refreshed monthly.