The 510 area code consists of portions of western Alameda and Contra Costa counties, including the cities of Alameda, Albany, Berkeley, El Cerrito, Emeryville, Fremont, Hayward, Hercules, Newark ...

It’s all to prepare for the new 341 area code going into effect July 22. The 341 area code joins the 510 area code in the western parts of Alameda and Contra Costa Counties.

Seven years later, the 510 area code was split to add the 925 area code. The Bay Area now has eight area codes — 707, 415, 628, 925, 510, 650, 408 and 669.

In California, there were three original area codes: 916, 213, and in the Bay Area, 415. The East Bay got "510" in 1991. California has 34 area codes. Since 2016, 10 have been added.

The 510 area code consists of portions of western Alameda and Contra Costa counties, including the cities of Alameda, Albany, Berkeley, El Cerrito, Emeryville, Fremont, Hayward, Hercules, Newark ...

The volunteer period comes as the CPUC prepares to unveil in 2019 the 341 area code in some areas that carry the 510. Next month, customers will be required to dial 510 with any call within that ...

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 serves the cities of Alameda, Albany, Berkeley, Emeryville, Fremont, Hayward, Newark, Oakland, Piedmont, San Leandro and Union City in Alameda County; and the cities of El ...

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 was created in 1991 after splitting off from the 415 region, which covers San Francisco and Marin counties. 510 was split once again in 1998, to pave the way for the 925 area code.

The new area code will be added to the existing 510 area code territory, which covers western Contra Costa County and Alameda County and includes the cities of Richmond, Oakland, Hayward and Fremont.