First there was 510, then came 925, and now, parts of the East Bay will welcome a new telephone area code: 341.

Starting Saturday, people with the 510 area code will have to work a little harder to get their calls through.

The new 341 code will co-mingle with the 510 area code in the western parts of Alameda and Contra Costa counties, CPUC officials said.

Despite dire predictions of a telephone number shortage in the Bay Area, a new study found that only half of the 16 million available numbers in the 415 and 510 area codes are being used. The ...

The 510 was split again in 1998, when the new 925 area code came into existence on the east side of the East Bay hills.

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.

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 Public Utilities ...

The East Bay is getting a new area code. It's 341. One expert says it's not big deal, but residents feel the 510 area code is a part of their identity.

The new dialing procedure starts June 22 and paves the way for the addition of the 341 area code to the region served by the 510 code. The changes do not require anyone to change their phone number.

The 510 area code, known to represent major portions of the East Bay, will no longer be given out to residents living in the area.