Area code 510 is the area code for Eastbay California and was assigned by North American Numbering Plan NANP.
History:
In 1991, 501 came after the split of area code 415. In 1998 the Eastbay, specifically, its inland portion was given the number 925 after the split. The line which divides east and west was Berkeley hills. Everything that was west of hills was under the service of 510. The east portion was supplied by 925. It was predicted that 510 would be exhausted in 2019 so an overlay was planned in the form of area code 341 which would serve Eastbay. The number came into use in 2019 after an overlay. And it was a ten-digit mandatory number. Before 2019, 510 was one of the area codes that hadn’t had any overlay but now it’s overlayed by 341.
Location:
The area code serves the California state and the major city served by this area code is Oakland.
Timezone:
Pacific time zone serves area code 510. And another name for the pacific time zone is America/ Los Angeles time zone.

Countries in area code
COUNTRY | TOTAL POPULATION | % OF 510 | % OF COUNTRY |
Almeda | 1,510,271 | 76% | 49% |
Contra costa | 1,049,025 | 24% | 16% |
Cities in area code:
CITY | TOTAL POPULATION | % OF 510 | % OF CITY |
Oakland | 390,724 | 0% | 100% |
Fremont | 214,089 | 0% | 100% |
Hayward | 144,186 | 0% | 100% |
Berkeley | 112,580 | 0% | 100% |
Richmond | 103,701 | 0% | 100% |
San Leandro | 84,950 | 0% | 100% |
Almeda | 73,812 | 0% | 100% |
Union city | 69,516 | 0% | 100% |
Castro valley | 61,388 | 0% | 100% |
Newark | 42,573 | 0% | 100% |
San Pablo | 29,139 | 0% | 100% |
Hercules | 24,060 | 0% | 100% |
El Cerrito | 23,549 | 0% | 100% |
San Lorenzo | 23,452 | 0% | 100% |
Ashland | 21,925 | 0% | 100% |
Albany | 18,539 | 1% | 100% |
Pinole | 18,390 | 0% | 100% |
Cherryland | 14,728 | 0% | 100% |
El Sobrante | 12,669 | 0% | 100% |
Piedmont | 10,667 | 0% | 100% |
Emeryville | 10,080 | 0% | 100% |
Fairview | 10,003 | 0% | 100% |
Rodeo | 8679 | 0% | 100% |
Tara hills | 5126 | 0% | 100% |
Kensington | 5077 | 0% | 100% |
North Richmond | 3717 | 0% | 100% |
East Richmond Heights | 3280 | 0% | 100% |
Crockett | 1094 | 0% | 100% |
Rollingwood | 2969 | 0% | 100% |
Mountain manor | 2876 | 0% | 100% |
Bayview | 1754 | 0% | 100% |
Port costa | 190 | 0% | 100% |
Sunol | 913 | 0% | 100% |
Frequently asked questions:
What is the 510 area code and where is it coming from?
510 is the area code for Eastbay California and was assigned by North American Numbering Plan NANP. The area code serves the California state and the major city served by this area code is Oakland.
What is the time zone of area code 510?
Pacific time zone serves area code 510. And another name for the pacific time zone is America/ Los Angeles time zone.
Is 510 a Canadian area code?
No, The area code serves the California state and the major city served by this area code is Oakland.
Conclusion:
Area code 510 is the area code for Eastbay California and was assigned by North American Numbering Plan NANP.
In 1991, 501 came after the split of area code 415. In 1998 the Eastbay, specifically, its inland portion was given the number 925 after the split. The area code serves the California state and the major city served by this area code is Oakland.
The Pacific time zone serves the 510. And another name for the pacific time zone is America/ Los Angeles time zone. For more, you may also read: area code 442