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United States · California

510 Area Code

Area code 510 serves Oakland and surrounding communities in California, United States. Numbers that start with 510 follow Pacific time. Enter the full number in the lookup panel to see the carrier, line type and scam risk before you call back.

Location
Oakland, CA
Local time
—Pacific · GMT-7
Dialing
+1 510 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 510

510 is centred on Oakland. It is the only area code for this region, so every local number begins with 510.

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 510 numbers

No reports yet for 510 numbers. Be the first to flag a number that called you.

Got a call from a 510 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 510 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 510 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 510 numbers to demand instant payment.
  • Bank fraud alerts. A caller pretends to be the fraud desk of a bank with branches in Oakland 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 510 numbers so the call looks local. A lookup that shows a VoIP line, or a carrier that does not serve California, is the giveaway.
  • Delivery and utility texts. Texts about a missed package or an overdue Oakland utility bill link to a fake payment page. Trace the sending number before tapping anything.

How to check a 510 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 California 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 510?

Area code 510 is in California, United States. Its largest city is Oakland.

What time zone is area code 510 in?

510 follows Pacific time (GMT-7). Check the live local time above before returning a call.

Is a call from 510 a scam?

Not by itself. 510 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 California or existing community reports are the warning signs.