Discovering the truth about a phone number, email, or address history can be eye-opening, please use this tool with caution.USA Area code 310 - Los Angeles, CA
Area code 310 is a North American Numbering Plan telephone area code serving Area codes in the Los Angeles metropolitan area in California. It was activated in 1991 and today covers roughly 5.0 million residents across 37 cities and towns, primarily in Los Angeles County .
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Who called me from area code 310?
A call from area code 310 most likely originates from Los Angeles or elsewhere in California - but caller ID spoofing means the area code alone cannot confirm who called. Right now, 25 310 numbers carry scam reports on this page. The only reliable way to identify the caller is to check the full 10-digit number:
- Run the number through the reverse phone lookup at the top of this page to see the owner's name, carrier, and location.
- Compare it against the recently reported scam numbers in 310 below.
- If the call was unwanted, report it to the FTC and use the report form on this page so other 310 residents see it.
Report a scam call from 310 Help other 310-area residents - takes 20 seconds, no signup
Reports are reviewed by our team before appearing on the page. The highest-reported numbers get added to the “Recently reported scam numbers” list above with a “community” badge.
Should I answer a call from a 310 number? Take the 30-second quiz - 5 questions, verdict + advice
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Next step: run a reverse-phone lookup on the number to see everything public about it.
Where is the 310 area code? Coverage map
The pin marks Los Angeles, the largest city served by area code 310. Zoom and pan to explore the coverage region.
Interactive map. Click a pin for city details. Data © OpenStreetMap contributors.
Cities in the 310 area code
Area code 310 serves the following 37 communities across 2 counties:
Area codes near 310 (overlay + neighboring)
If a caller ID shows one of these codes, the call is probably still from the Los Angeles area or a nearby region. Click any code to see its own page.
310 area code robocall complaints (FCC data)
Monthly count of FCC complaints tagged to numbers in area code 310 over the last 12 months.
254 complaints in the last 12 months. That's about 66% fewer robocall complaints per capita than the US average - 5 per 100,000 residents vs a national average of 14.7.
Source: FCC Consumer Complaint Data (dataset vakf-fz8e). Data as of August 9, 2026. Refreshed monthly.
How 310 area code spam calls arrive
Based on 254 FCC complaints in the last 12 months, here's how 310 spam calls reached recipients:
FCC Consumer Complaint Data, last 12 months as of August 9, 2026. Refreshed monthly. Note: the FCC dataset labels method (Live Voice / Prerecorded / SMS) but does not classify scam type (IRS impersonation, tech support fraud, etc.) - those come from community reports.
Recently reported scam numbers in 310
Numbers reported to the FCC or by our community in the last 12 months. Click any to run a full reverse-phone lookup.
Source: FCC Consumer Complaint Data, last 12 months as of August 9, 2026. Refreshed monthly. Numbers submitted via the report form near the top of this page get added here with a “community” badge after moderation.
How to block 310 spam calls (by carrier)
Getting repeated spam calls from 310 numbers around Los Angeles, California? You can't legitimately block every 310 call without also missing legitimate ones from Los Angeles, California - so the practical fix is to turn on your carrier's free spam filter and register on the national do-not-call list. Step-by-step for each major US carrier below.
AT&T
- Download the free AT&T ActiveArmor app (iOS + Android).
- Sign in with your wireless number.
- Enable Fraud Blocking and Suspected Spam Warning.
- To block a specific number, tap the call in your history → Block.
Verizon
- Download the free Verizon Call Filter app (iOS + Android).
- Sign in with your Verizon account.
- Turn on Spam Filter.
- To block a specific number: My Verizon → Blocks → Add Number.
T-Mobile
- Download the free Scam Shield app (iOS + Android).
- Enable Scam Block (blocks known scam calls silently).
- Use Scam ID to see “Scam Likely” caller ID on suspicious numbers.
- To block a specific number, dial
#662#from your device.
All carriers
- Register on the FTC's National Do-Not-Call list.
- Report unwanted calls to the FCC at fcc.gov/complaints.
- On iPhone: Settings → Phone → Silence Unknown Callers.
- On Android: Phone app → ⋮ → Settings → Caller ID & spam.
Sources: carrier support pages (AT&T, Verizon, T-Mobile), FCC consumer guides. Free features as of 2026. Every one of these steps costs nothing.
History of the 310 area code
state of California. The numbering plan area includes the West Los Angeles and South Bay areas of Los Angeles County, a small portion of Ventura County, and Santa Catalina Island, which is located south.
310 area code FAQ: common questions
What area code is 310?
Area code 310 is a North American Numbering Plan area code that serves Area codes in the Los Angeles metropolitan area in California, primarily including Los Angeles and surrounding communities. It was activated in 1991.
Where does area code 310 cover?
Area code 310 covers Los Angeles County, Ventura County, including cities such as Alondra Park, Athens, Avalon, Beverly Hills, Carson, and roughly 32 other communities.
Is 310 a real area code or a scam?
310 is a real, actively-assigned US area code - not itself a scam. However, spammers do use 310 numbers because the code is well-known and appears local to millions of residents. Always verify the specific number, not the area code.
How do I block 310 spam calls?
You cannot legitimately block an entire area code without also blocking legitimate calls from Los Angeles. Better options: register on the National Do-Not-Call list, enable your carrier's spam-filter (all major US carriers now offer this free), and report unwanted calls to the FCC at fcc.gov/complaints so they show up in the trend data on this page.
What's the overlay area code for 310?
310 shares coverage with overlay code 424. That means new phone numbers issued in the same geographic area may have either area code, and 10-digit dialing is required.
Sources
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