Area Code 548

Area code 548 covers London, Ontario (Eastern Time) and nearby Kitchener-Waterloo, Windsor and Brantford; overlays 226, 382 and 519 share the same area.

Area code 548 quick facts

LocationLondon, Ontario
Time zoneEastern Time
In service2016-06-04
Overlay codes226, 382, 519
Nearby codes226, 382, 519, 416, 942, 437
Carrier coverage512 prefixes; 15% wireless
FTC complaint data3 complaints across 1 numbers
Data current as ofNovember 2, 2026

Is a call from 548 a scam? Who called me from 548?

FTC complaints involving 548 numbers

1numbers reported
3FTC complaints

Numbers shown with area code 548 in the FTC's Do Not Call “Reported Calls” database (recent reporting window). Most common reported reasons: “Reducing your debt (credit cards, mortgage, student loans)”.

Most-complained 548 numbers:

These are FTC Do Not Call complaints filed about specific numbers shown with this area code — frequently spoofed. The area code itself is not a scam. See the most-reported area codes and the most-reported phone numbers nationwide.

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

Nearby area codes

Frequently asked questions

Where is area code 548?

Area code 548 covers London, Ontario (Eastern Time) and nearby Kitchener-Waterloo, Windsor and Brantford; overlays 226, 382 and 519 share the same area.

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 November 2, 2026. Refreshed monthly.