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California · Area code

Area Code 510Oakland, CA

Area code 510 is in California, United States, and serves Oakland, Fremont, Berkeley, Hayward and Alameda and other places nearby. Its time zone is Pacific Time.

Area code 510 at a glance

Area code
510
Main place
Oakland, CA
State
California
Country
🇺🇸 United States
Country calling code
+1
Time zone
  • Pacific Time (America/Los_Angeles)
Dial from abroad
+1 510 XXX XXXX
Dial inside the US and Canada
1 510 XXX XXXX

Cities and places in area code 510

The places phone numbers beginning 510 were issued in, the most common first.

  • Oakland, CA
  • Fremont, CA
  • Berkeley, CA
  • Hayward, CA
  • Alameda, CA
  • San Leandro, CA
  • Union City, CA
  • Richmond, CA
  • Castro Valley, CA
  • Crockett, CA
  • Emeryville, CA
  • Hercules, CA
  • Pinole, CA

Look up a 510 number

Enter a full number with area code 510: it shows the line type, place, network and time zone, and every way to write it. Free and private.

Area code 510: frequently asked questions

Where is area code 510?

Area code 510 is in California, United States. It serves places including Oakland, Fremont, Berkeley, Hayward, Alameda, San Leandro, Union City and Richmond.

What time zone is area code 510 in?

Area code 510 is on Pacific Time. A number with this area code can belong to someone living anywhere, so the time zone tells you where the number was issued rather than where the person is.

Which country is area code 510 in?

Area code 510 belongs to the United States, part of the North American Numbering Plan. Country code +1 is shared by the United States, Canada and many Caribbean and Pacific countries; the area code decides which one a number is in.

How do I call a 510 number from another country?

Dial your country's international access code (or press + on a mobile phone), then 1, then 510, then the seven-digit number: +1 510 followed by the number. Inside the United States and Canada, dial 1 and the ten digits.

Can I tell who is calling from an area code?

No. The area code only shows where a number was first issued. People keep their numbers when they move, mobile numbers work anywhere, and callers can disguise the number they call from. To see what the numbering plan says about a specific number, use the free phone number lookup.

What other area codes are in California?

Other area codes in California include 209, 213, 279, 310, 323, 341, 350, 369, 408 and 415.

Other area codes in California

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