The 415 area code is a telephone prefix in the North American Numbering Plan associated with San Francisco in California State. This prefix covers San Francisco County, the northeast portion of San Mateo County, and some northern suburbs in Main County.
The 415 codification disposes of a single overlay, the 628 area code, which covers the same region. Being San Francisco one of the major cities in terms of finance, culture, and commerce in California, the 415 area code plays a critical role in the economic activity, not only of the state but also of the country.
On top of that, California’s state owns the greatest telephone network in the U.S., utilizing 34 area codes for the whole region. Each one of these codes supports the telecommunication system, serving urban areas, banks, local businesses, postal services, universities, and other institutions in the state.
1. History
By 1947, AT&T and the Bell System designated 3 area codes for the entire California territory: the 916 code for the southern region, the 213 code for the northern portion, and finally the 415 for Central California.
Three years later, the NANP relocated two of the original numbers to generate a division between the northern and central sides. The 916 area code began serving the northeastern corner of the state, while the 415 area code started running in the coastal region from the North Coast to Oregon’s border.
The 415 covered San Francisco and the full Bay Area in 1953. This codification has been divided three times throughout history; in 1959 it forms the 707 code, in 1991 to create the number 510, and in 1997, producing the 650 area code.
Its overlay the 628 area code arrived On February 21, 2015, as a long-term solution for the saturation trouble, due to the massive expansion of digital technology.
2. Location
Located in the Western region of the country, California is the third largest and most populous state of the US with around 39.9 million inhabitants.
Incorporated on September 9, 1850, California is divided into 58 counties and 482 municipalities. The capital-state city is Sacramento and the largest municipality in Los Angeles City, comprising a total area of 468.7 square miles.
On the other hand, Northern California is one of the most populated parts of the state. Also, this portion includes three of the largest metro areas of the region; the San Francisco Bay Area, the Metropolitan Fresno area, and the Greater Sacramento area.
The 415 area code covers a total area of 487.59 square miles in Northern California and possesses 96 non-unique postal area zip codes.
Adjacent codes
The 415 area code and its overlay the 628 code just surround 2 of the 58 counties located in California. As mentioned above, this state contains the major quantity of area codes for a single state in the country.
The newest area code added to the state is the prefix 820 (2018), which serves as an overlay for the number 805. Both prefixes cover a portion of the Central Coast of the region including Ventura, Santa Barbara, Monterrey, and San Luis Obispo County.
The most employed dialing code in California is the 760 area code. This codification is located in the southeastern part of the state and covers an estimated 5.7 million of the state's 39.9 million residents.
3. Most Important Cities in the 415 Area Code
San Francisco
This city is located in San Francisco County, in Northern California on a peninsula between the Pacific Ocean and San Francisco Bay. San Francisco is the 4th most populous city in California and the 16th most populous In the United States.
Founded in 1776 and incorporated on April 15, 1850, San Francisco stands out as a cultural and commercial center of the Western United States. Famous for its impressive mix of architecture like The Golden Gate Bridge, and the Alcatraz Federal Penitentiary, this location represents a relevant tourism area, which strongly contributes to the state’s economic incomes.
Covering a total area of 231.91 square miles, San Francisco possesses 51 non-unique ZIP codes, all of them surrounded by the 415 area code.
4. San Rafael
Incorporated on February 18, 1874, this city lies in the North Bay region of the San Francisco Bay Area. San Rafael appears as the county seat of Marin County in western California. With a population of around 58k residents, this municipality is the third most populated city covered by the 415 area code.
Covering a total area of 22.4 square miles, San Rafael encompasses a great number of regional parks including China Camp State Park, Albert Park, and McNear's Beach Park.
Served by the 415 area code San Rafael own 5 non-unique ZIP codes: 94901, 94903, 94912, 94913, and 94915.
5. Other Important Locations and ZIP Codes of the 415 Area Code
- Marin County: included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area, the incorporation of this county dates from February 18, 1850. Its largest city and county seat is San Rafael and possesses 41 non-unique ZIP codes.
- Financial District: This is a San Francisco neighborhood that constitutes the central business district of the city. This location is home to some of the most important banks, companies, and financial institutions in the region.
- Union Square: formed by a large collection of shopping centers, theaters, and art galleries; this neighborhood is a cultural symbol for the city. Located in Downtown San Francisco this public plaza delimits Geary, Powell, Post, and Stockton Streets.
Main Postal and Shipping Services
- United States Postal Service, San Francisco, CA- +1 415-643-3790
- USPS North Beach Annex, San Francisco, CA - +1 415-986-3494
- San Anselmo Post Office, San Anselmo, CA - +1 415-453-0363
- Contract Postal Unit, Larkspur, CA - +1 415-448-5043
- USPS Townsend Carrier Annex, San Francisco, CA - +1 415-626-2932
6. FAQs
How many area codes are there in California?
California owns 34 area codes, becoming the state with the major number of area codes in the country.
What is the original area code established in California?
California possesses 3 original area codes: 415, 916, and 213.