A person uses a cellphone in an undated file photo. Shutterstock Photo SAN FRANCISCO (KGO) -- If you have a phone number in the 510 area code, you'll have to dial a "1" when making local calls ...

Owner of a phone with a 510 area code? Time to start dialing 10 digits when making a call to someone else in the 510. So says the California Public Utilities Commission, which is encouraging 510 ...

OAKLAND (CBS SF) - Next month telephone customers in the 510 area code must dial 1 plus the area code and the number to make any call to the 510 or the new 341 area code, according to the California ...

OAKLAND — The new telephone area code for a big stretch of the East Bay, including its largest city, Oakland, is 341, state regulators said Thursday. The 341 area code will be overlaid upon — ...

First there was 510, then came 925, and now, parts of the East Bay will welcome a new telephone area code: 341. The California Public Utilities Commission approved the new digits Thursday. The 341 ...

Do you have a 510 area code? If you do, you will have to take a little extra step to dial out your phone calls starting Saturday, June 22. Anyone with a 510 area code will have to dial 1 plus the area ...

OAKLAND (CBS SF) – The California Public Utilities Commission will hold public meetings Tuesday in two East Bay cities to explain how and when a proposed new area code would be added to the region.