| Start Date | 07/22/2019 |
| Current Time in Area Code 341 | 341> PST |
| Timezone | Pacific Standard Time |
| Regional Market Area | Metro Bay Area |
| Metro Area(s) | San Francisco-Oakland-Berkeley, CA |
| Population (2020) | 0 |
| Adjacent Area Codes | 408,415,510,628,650,669,707,925 |
| Overlay Area Codes | 510 |
| Alameda |
| Berkeley |
| Castro Valley |
| Fremont |
| Hayward |
| Newark |
| Oakland |
| Richmond |
| San Leandro |
| San Pablo |
| Union City |