Canada · Ontario
548 Area Code
Area code 548 serves London and surrounding communities in Ontario, Canada. Numbers that start with 548 follow Eastern time. Enter the full number in the lookup panel to see the carrier, line type and scam risk before you call back.
- Location
- London, ON
- Local time
- —Eastern · GMT-4
- Dialing
- +1 548 XXX XXXX
- LineMobile
- CarrierT-Mobile USA
- LocationSan Francisco, CA
- Caller nameNot published
- RiskLow risk· 3 reports
Cities and communities in 548
548 is centred on London. The same area is also served by 226 and 519, so a London business or resident may have a number under any of these codes.
A geographic area code tells you where a number was issued, not where the phone is today. People keep their numbers when they move, and businesses buy local numbers to look nearby. Use it as a starting point, then confirm with the carrier and line type from a lookup.
Most reported 548 numbers
No reports yet for 548 numbers. Be the first to flag a number that called you.
Got a call from a 548 number that is not listed? Add it on the Who Called Me page. Reports show up here and on every lookup within minutes.
Common scam calls from 548 numbers
Scam callers rotate through local-looking numbers because people answer them more often. These are the patterns reported most often across North America and seen with 548 caller IDs.
- "the CRA" threats. A recorded voice claims a warrant or unpaid tax bill and demands payment by gift card or wire. Government agencies do not call from 548 numbers to demand instant payment.
- Bank fraud alerts. A caller pretends to be the fraud desk of a bank with branches in London and asks you to "verify" a card number or one-time code. Hang up and call the number on the back of your card.
- Local-looking spoofed numbers. Scammers spoof 548 numbers so the call looks local. A lookup that shows a VoIP line, or a carrier that does not serve Ontario, is the giveaway.
- Delivery and utility texts. Texts about a missed package or an overdue London utility bill link to a fake payment page. Trace the sending number before tapping anything.
How to check a 548 number
- Enter the full ten-digit number in the panel above. The area code is already filled in.
- Read the line type and carrier. A mobile or landline from a carrier that serves Ontario is usually genuine; a VoIP line spun up yesterday is not.
- Check the risk level and community reports. If others have flagged the number, do not call back.
- Still unsure? Unlock risk details or the owner report for the number.
Frequently asked questions
Where is area code 548?
Area code 548 is in Ontario, Canada. Its largest city is London.
What time zone is area code 548 in?
548 follows Eastern time (GMT-4). Check the live local time above before returning a call.
Is a call from 548 a scam?
Not by itself. 548 is a normal geographic area code, but scammers spoof local numbers. Run the free lookup on the exact number: a VoIP line, a carrier outside Ontario or existing community reports are the warning signs.
Why do I also see 226 and 519 in London?
226 and 519 are overlay codes that share the same area as 548. New numbers in London may be issued under any of them, so ten-digit dialing is required.