Area code 310 serves a famous part of Southern California, covering coastal cities, business districts, residential communities, ports, and tourist destinations. A number beginning with 310 may belong to a resident, company, hotel, school, medical office, shop, or public service. Its location, history, overlay, and dialing rules explain the region.
Where Is Area Code 310 Located?
Area code 310 is in California. Together with overlay area code 424, it mainly serves western and southwestern Los Angeles County, including coastal communities, parts of Los Angeles, the South Bay, and Santa Catalina Island.
Some of the main cities and communities covered by area code 310 include:
- Los Angeles, particularly western and coastal areas
- Santa Monica
- Beverly Hills
- Malibu
- Culver City
- Inglewood
- El Segundo
- Manhattan Beach
- Redondo Beach
- Torrance
- San Pedro
- Avalon
The region includes beaches, residential neighbourhoods, commercial centres, entertainment districts, port areas, and island communities.
History of Area Code 310
Area code 310 entered service on November 2, 1991, through a geographic split of area code 213. The change supplied additional telephone numbers to western, eastern, and southern portions of Los Angeles County.
In January 1997, Long Beach and eastern Los Angeles County moved to the newly created 562 area code. As demand continued to grow, area code 424 was added as an overlay. New 424 numbers began to be issued on August 26, 2006, while existing 310 numbers remained unchanged.
Time Zone of Area Code 310
Area code 310 follows the Pacific Time Zone. It uses Pacific Standard Time during standard time and Pacific Daylight Time when daylight saving time applies.
Callers from other regions should check the time difference. California is three hours behind the Eastern Time Zone and two hours behind the Central Time Zone.
Major Cities and Their Importance
1. Los Angeles
Area code 310 covers several western and coastal parts of Los Angeles. These communities support media, education, healthcare, tourism, shopping, professional services, and port activity. San Pedro is an important harbour community within the region.
2. Santa Monica
Santa Monica is a major coastal city known for tourism, technology, retail, hospitality, healthcare, and residential neighbourhoods. Its beach, pier, shopping districts, and location make it an important centre in the 310 region.
3. Torrance
Torrance is one of the largest South Bay cities. Its economy includes manufacturing, healthcare, automotive activity, retail, logistics, education, and professional services. It combines major employment areas with established neighbourhoods.
4. Beverly Hills
Beverly Hills is internationally recognised for luxury retail, hotels, restaurants, entertainment businesses, medical services, and residential areas. A 310 number is strongly associated with the city and the wider Westside.
Who Uses Area Code 310?
Area code 310 is used by residents, entertainment companies, technology firms, shops, hotels, restaurants, hospitals, schools, government offices, manufacturers, and professional service providers. It is common in tourism, media, healthcare, retail, real estate, education, transport, and hospitality.
A 310 number can help a business establish a local presence in Los Angeles, Santa Monica, Beverly Hills, Torrance, the beach cities, or nearby communities. It is used for landline, mobile, and internet-based services.
Is Area Code 310 Running Out?
Area code 310 no longer operates alone. The 424 overlay supplies additional numbers throughout the same geographic territory. Existing 310 numbers remain valid, while new customers may receive either a 310 or 424 number, depending on availability.
How to Dial Area Code 310
To call a 310 number, use the following dialing methods:
- From within the United States: Dial 1 + 310 + the seven-digit telephone number. Some mobile services may complete the call without the initial 1.
- From outside the United States: Dial +1 + 310 + the seven-digit telephone number.
- For local calls: Use the area code and seven-digit number because 310 and 424 share the same region.
Save the complete area code and telephone number in mobile contacts, websites, advertisements, customer records, security systems, and business directories.
Final Thoughts
Area code 310 represents one of Southern California’s most recognisable regions. It connects Los Angeles’ Westside, Santa Monica, Beverly Hills, Torrance, the beach cities, San Pedro, Malibu, and Avalon.
Since 1991, 310 has become a familiar regional identity. On a call, business listing, hotel contact, medical office, or company website, it points to western and southwestern Los Angeles County.
