424 area code
Compton area, Pacific Time.Area code 424 covers Compton, Beverly Hills, Santa Monica and 11 more places in California, on Pacific Time. 310 covers the same area.
Right now in Compton
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
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Where 424 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 424 has 14. Each one's share is how many 424 numbers start there. Its biggest metro area is Los Angeles-Long Beach-Anaheim, CA.
- Compton15%
- Beverly Hills14%
- Santa Monica12%
- Inglewood8%
- Redondo8%
- West Los Angeles8%
- San Pedro7%
- Hawthorne6%
- Torrance5%
- Culver City5%
- El Segundo4%
- Lomita4%
Also: Malibu, Avalon
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 424 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 424 number to them, since you can't tell a work line from a personal cell.
What applies to 424Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
424 and 310
424 went into service on August 26, 2006. 424 and 310 cover the same area, so new numbers can get either code and neighbors can have different area codes. 424 holds 37% of the area's exchanges; 310 holds the most. Local calls take all 10 digits.
- 1991310 overlay
- 2006424 starts
Source: NANPA area code database
Other California area codes
All California area codes- Stockton209350
- Los Angeles213323738
- Sacramento279916
- Oakland341510
- Fresno357559
- Santa Rosa369707
- San Jose408669
- San Francisco415628
- Oceanside442760
- Chico530837
- Long Beach562
- San Diego619858
- Alhambra626
- Palo Alto650
- Anaheim657714
- Bakersfield661
- Van Nuys747818
- Santa Barbara805820
- Salinas831
- Ontario840909
- Walnut Creek925
- Irvine949
- Riverside951
Calling a list of 424 numbers?
Paste it into the free phone number validator. It checks every number, finds each one's time zone and sorts the list by who you can call right now.
424 area code FAQ
What area code is 424?
424 is a California area code for Compton, Beverly Hills, Santa Monica, Inglewood and 10 more places.
What time zone is the 424 area code in?
Pacific Time (PST, UTC-8; PDT, UTC-7 in summer).
Is 310 the same as 424?
Same area, different code. 424 and 310 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 424 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 424 area code start?
On August 26, 2006.
Calling 424 numbers? Reach more of them.
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