Area codes › California › 738

USA Area code 738 - California, CA

Area code 738 is a North American Numbering Plan telephone area code serving Area codes in the Los Angeles metropolitan area in California. It was activated in 1947 and today covers roughly 1.0 million residents across 28 cities and towns, primarily in Los Angeles County .

Sources: FCC OpenData, Wikipedia, and community-submitted reports · Updated
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Local time in 738 ?
-
Population served ?
1.0M
Overlay code ?
213, 323
Time zone ?
Pacific (PT)
Activated ?
1947

Who called me from area code 738?

A call from area code 738 most likely originates from California or elsewhere in California - but caller ID spoofing means the area code alone cannot confirm who called. Right now, 1 738 number carries scam reports on this page. The only reliable way to identify the caller is to check the full 10-digit number:

  1. Run the number through the reverse phone lookup at the top of this page to see the owner's name, carrier, and location.
  2. Compare it against the recently reported scam numbers in 738 below.
  3. If the call was unwanted, report it to the FTC and use the report form on this page so other 738 residents see it.
Report a scam call from 738 Help other 738-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.

Only the number, category, and description are stored. IP addresses are one-way hashed for rate-limiting and never stored raw. Reports are moderated before publication. Links are not allowed in descriptions.

Should I answer a call from a 738 number? Take the 30-second quiz - 5 questions, verdict + advice

Runs entirely in your browser - nothing is sent or stored.

1. Were you expecting a call today?
2. Do you recognise the specific number (not just the area code)?
3. Have you searched the number online yet?
4. Is it during normal business hours in 738?
5. Are you actively waiting on a business decision (delivery, loan, job, etc.)?

Cities in the 738 area code

Area code 738 serves the following 28 communities across 1 county:

Alhambra
Bell
Bell Gardens
Beverly Hills
City Terrace
Commerce
Cudahy
East Los Angeles
Florence
Florence-Graham
Hawthorne
Huntington Park
Inglewood
Ladera Heights
Lynwood
Maywood
Montebello
Monterey Park
Pasadena
Rosemead
South Gate
South Pasadena
Vernon
View Park Windsor Hills
Walnut Park
West Athens
West Hollywood
Westmont

Area codes near 738 (overlay + neighboring)

If a caller ID shows one of these codes, the call is probably still from the California area or a nearby region. Click any code to see its own page.

Same geography as 738 (overlay codes)

These codes cover the exact same area as 738. A number starting with 213 could literally be your neighbor - overlay codes get assigned when 738's numbers run out.

Neighboring regions (codes next door)

These codes cover regions adjacent to 738. Common for calls from nearby cities and across county lines.

738 area code robocall complaints (FCC data)

Monthly count of FCC complaints tagged to numbers in area code 738 over the last 12 months.

1 complaints in the last 12 months. That's about 99% fewer robocall complaints per capita than the US average - 0 per 100,000 residents vs a national average of 14.7.

Monthly FCC robocall complaints for area code 738 over the last 12 months 0 25 50 75 100 June 2026: 1 reports Jun '26

Source: FCC Consumer Complaint Data (dataset vakf-fz8e). Data as of August 9, 2026. Refreshed monthly.

How 738 area code spam calls arrive

Based on 1 FCC complaints in the last 12 months, here's how 738 spam calls reached recipients:

1
Live Voice
1 reports · 100%

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 738

Numbers reported to the FCC or by our community in the last 12 months. Click any to run a full reverse-phone lookup.

738-200-4453
Live Voice 1 report last reported Jun 12, 2026

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 738 spam calls (by carrier)

Getting repeated spam calls from 738 numbers around California, California? You can't legitimately block every 738 call without also missing legitimate ones from California, 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

  1. Download the free AT&T ActiveArmor app (iOS + Android).
  2. Sign in with your wireless number.
  3. Enable Fraud Blocking and Suspected Spam Warning.
  4. To block a specific number, tap the call in your history → Block.

Verizon

  1. Download the free Verizon Call Filter app (iOS + Android).
  2. Sign in with your Verizon account.
  3. Turn on Spam Filter.
  4. To block a specific number: My Verizon → Blocks → Add Number.

T-Mobile

  1. Download the free Scam Shield app (iOS + Android).
  2. Enable Scam Block (blocks known scam calls silently).
  3. Use Scam ID to see “Scam Likely” caller ID on suspicious numbers.
  4. To block a specific number, dial #662# from your device.

All carriers

  1. Register on the FTC's National Do-Not-Call list.
  2. Report unwanted calls to the FCC at fcc.gov/complaints.
  3. On iPhone: Settings → Phone → Silence Unknown Callers.
  4. 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 738 area code

state of California. They are assigned in an overlay complex to a numbering plan area (NPA) that comprises, roughly, the area of downtown Los Angeles City, as well as several southeast Los Angeles County cities, such as Bell and Huntington Park. Area code 213 was one of the original North American area codes of 1947 and 323 was created in an area code split of 213 in 1998.

738 area code FAQ: common questions

What area code is 738?

Area code 738 is a North American Numbering Plan area code that serves Area codes in the Los Angeles metropolitan area in California, primarily including California and surrounding communities. It was activated in 1947.

Where does area code 738 cover?

Area code 738 covers Los Angeles County, including cities such as Alhambra, Bell, Bell Gardens, Beverly Hills, City Terrace, and roughly 23 other communities.

Is 738 a real area code or a scam?

738 is a real, actively-assigned US area code - not itself a scam. However, spammers do use 738 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 738 spam calls?

You cannot legitimately block an entire area code without also blocking legitimate calls from California. 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 738?

738 shares coverage with overlay codes 213, 323. 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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