Area codes 415 and 628 (San Francisco Area)
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Area codes 415 and 628 serve the city of San Francisco and its northern suburbs in Marin County, as well as the northeast corner of San Mateo County in California. Established in 1947, area code 415 is one of the original North American area codes, while area code 628 was introduced in 2015 as an overlay to address the growing demand for new phone numbers in the region.
415 and 628 Area Codes: Comprehensive Coverage of San Francisco and Beyond
The 415 and 628 area codes serve a diverse range of locations within the City and County of San Francisco, Marin County, and a small portion of San Mateo County. Below is a detailed list of the cities and communities covered by these area codes.
These areas are part of the greater San Francisco Bay Area, known for their unique blend of urban and suburban environments, cultural landmarks, and scenic beauty
| City/Community | County |
|---|---|
| San Francisco | San Francisco |
| Bel Marin Keys | Marin |
| Belvedere | Marin |
| Black Point-Green Point | Marin |
| Bolinas | Marin |
| California Park | Marin |
| Corte Madera | Marin |
| Dogtown | Marin |
| Fairfax | Marin |
| Greenbrae | Marin |
| Inverness Park | Marin |
| Inverness | Marin |
| Kentfield | Marin |
| Lagunitas-Forest Knolls | Marin |
| Larkspur | Marin |
| Lucas Valley-Marinwood | Marin |
| Manor | Marin |
| Marconi | Marin |
| Marin City | Marin |
| Marshall | Marin |
| McNears Beach | Marin |
| Mill Valley | Marin |
| Muir Beach | Marin |
| Nicasio | Marin |
| Novato | Marin |
| Olema | Marin |
| Paradise Cay | Marin |
| Point Reyes Station | Marin |
| Ross | Marin |
| San Anselmo | Marin |
| San Geronimo | Marin |
| San Quentin | Marin |
| San Rafael | Marin |
| Santa Venetia | Marin |
| Sausalito | Marin |
| Sleepy Hollow | Marin |
| Stinson Beach | Marin |
| Strawberry | Marin |
| Tamalpais-Homestead Valley | Marin |
| Tiburon | Marin |
| Woodacre | Marin |
| Brisbane | San Mateo |
| Daly City | San Mateo |
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History of Area Code 415
en.wikipedia.org
Area code 415, established in 1947, is one of the original North American area codes and has a rich history of evolution
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. Initially covering a vast portion of central California, including Sacramento and Bakersfield, it underwent several splits and reconfigurations over the decades3
. The most significant changes occurred in 1959, 1991, and 1997, when new area codes were created to accommodate the region's rapid growth and increasing demand for telecommunication services4
. In 2015, area code 628 was introduced as an overlay to 415, necessitating ten-digit dialing for local calls5
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. This overlay solution preserved existing 415 numbers while addressing the shortage of available phone numbers in the San Francisco area.5 sources
Cultural Significance of the 415 Area Code
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The 415 area code is deeply embedded in the cultural fabric of San Francisco, symbolizing the city's rich history, diversity, and innovative spirit. Established in 1947, it was one of the original area codes in the United States and has since become synonymous with San Francisco's identity. The 415 area code evokes images of iconic landmarks such as the Golden Gate Bridge, cable cars, and the city's vibrant arts and culinary scenes
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. It has been referenced in popular culture, including songs, movies, and television shows, further cementing its status as a cultural icon1
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. For many residents and businesses, having a 415 area code is a badge of honor, representing a connection to the city's unique character and global influence1
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