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United States · Maryland

240 Area Code

Area code 240 serves Silver Spring and surrounding communities in Maryland, United States. Numbers that start with 240 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
Silver Spring, MD
Local time
—Eastern · GMT-4
Dialing
+1 240 XXX XXXX
caller tracer
Sample resultUS(415) 555-0132
  • LineMobile
  • CarrierT-Mobile USA
  • LocationSan Francisco, CA
  • Caller nameNot published
  • RiskLow risk· 3 reports
Enter a number to run a live traceFree basic lookups every day

Cities and communities in 240

240 is centred on Silver Spring. The same area is also served by 301, so a Silver Spring 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 240 numbers

No reports yet for 240 numbers. Be the first to flag a number that called you.

Got a call from a 240 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 240 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 240 caller IDs.

  • "the IRS or Social Security" 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 240 numbers to demand instant payment.
  • Bank fraud alerts. A caller pretends to be the fraud desk of a bank with branches in Silver Spring 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 240 numbers so the call looks local. A lookup that shows a VoIP line, or a carrier that does not serve Maryland, is the giveaway.
  • Delivery and utility texts. Texts about a missed package or an overdue Silver Spring utility bill link to a fake payment page. Trace the sending number before tapping anything.

How to check a 240 number

  1. Enter the full ten-digit number in the panel above. The area code is already filled in.
  2. Read the line type and carrier. A mobile or landline from a carrier that serves Maryland is usually genuine; a VoIP line spun up yesterday is not.
  3. Check the risk level and community reports. If others have flagged the number, do not call back.
  4. Still unsure? Unlock risk details or the owner report for the number.

Frequently asked questions

Where is area code 240?

Area code 240 is in Maryland, United States. Its largest city is Silver Spring.

What time zone is area code 240 in?

240 follows Eastern time (GMT-4). Check the live local time above before returning a call.

Is a call from 240 a scam?

Not by itself. 240 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 Maryland or existing community reports are the warning signs.

Why do I also see 301 in Silver Spring?

301 is an overlay code that share the same area as 240. New numbers in Silver Spring may be issued under any of them, so ten-digit dialing is required.