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 California Public Utilities Commission has announced that the 510 area code is expected to use up all of its available prefixes by June 2019.

No one with an existing 510 phone number will have their area code changed. Instead, anyone requesting new phone numbers in the region will receive the new area code once it's implemented.

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 new area code of 341 will be “overlaid” in the 510 area, which means that next-door neighbors will soon have different area codes.

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.

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 ...

East Bay residents: get your 510 area code number now, before you lose your chance in 2018.

The 341 area code is being added because 510 numbers are in short supply. The new dialing policy starts on June 22.

The 510 area code was created in 1991, split off from the 415 area code. The 510 area code was split again in 1998 to create the 925 area code. For live, local news, download the KRONon app.