323 Area Code: Los Angeles, California
Area code 323 serves Los Angeles and Montebello, California in the Pacific time zone, in service since 1998. Consumers have filed 7,857 unwanted-call complaints against 5,510 different 323 numbers, 521 of them with the FTC in the last 30 days. Look up the exact number that called you below.
Area code 323 at a glance
- State
- California
- Main cities
- Los Angeles, Montebello
- County
- Los Angeles County
- Local time
- —Pacific
- In service since
- June 13, 1998
- Overlay of
- 213
- Overlay code
- 738 (2024)
- Local dialing
- 10 digits (area code + number)
- Exchanges
- 12 rate centers, 786 prefixes
Sources: NANPA area code and central office code records (refreshed weekly); cities and counties matched from US Census Bureau and USGS place names.
Most-reported 323 numbers
Ranked by FTC Do Not Call complaints this month, then all-time FTC and FCC complaints. Only numbers with enough complaints for a full report page are listed. Click one for what it was reported for and where.
What calls from 323 numbers are about
1,471 FTC Do Not Call complaints about 323 numbers since Jul 24. The most common named subject is debt-relief pitches, at 11% of complaints (81% of those were recorded messages). Overall, 53% of callers who answered said the call was a robocall.
FTC complaint subjects
- Other / unspecified60041%
- Dropped call / no message22916%
- Debt reduction16911%
- Impostor (government, business, family)16411%
- No subject given1248%
- Home improvement & cleaning654%
- Energy, solar & utilities322%
FCC complaints by call type, last 2 years
- Live Voice17158%
- Prerecorded Voice6923%
- Text Message5418%
18% of recent FCC complaints about 323 numbers are about text messages, not calls.
When 323 spam calls come in
28% of complaints that give a call time describe calls between 9am and 12pm. 92% came Monday to Friday, most on Mondays, the pattern of call-center robocall campaigns that run on business hours. Times are as consumers reported them to the FTC.
By hour of the day
By day of the week
Is it getting worse?
517 FTC complaints about 323 numbers in the last four weeks, up 3% on the four weeks before. FCC complaints about 323 numbers peaked in 2017 (1,052); the FTC's daily Do Not Call data has carried most of the volume since mid-2026.
FTC complaints per week
FCC complaints per year
Years shown as '15 to '26; the current year is partial.
Who gets these calls
66% of the FTC complaints about 323 numbers came from California residents, but only 18% from people with 323 numbers themselves. The calls are mostly regional rather than aimed at 323 phones specifically.
Where complainants live
- California97766%
- Florida362%
- Texas312%
- Colorado302%
- Pennsylvania272%
What people with 323 numbers report
People whose own number starts with 323 filed 2,019 FTC complaints since Jul 24. 13% were about calls showing another 323 number. The most common named subject was debt-relief pitches.
Area codes on the calls they reported
- 323 (same code)26913%
- 833 (toll-free)1286%
- 866 (toll-free)1176%
- 888 (toll-free)1075%
- 855 (toll-free)1035%
Busiest 323 prefixes this month
FTC complaints in the last 30 days, grouped by the first six digits. When one prefix collects complaints about many different numbers, a campaign is usually cycling through that block. The carrier is who NANPA assigned the prefix to, not who made the calls.
| Prefix | Complaints | Numbers | Carrier | Exchange |
|---|---|---|---|---|
| (323) 416-xxxx | 25 | 25 | Peerless Network | Montebello |
| (323) 991-xxxx | 20 | 20 | Bandwidth.com | Los Angeles |
| (323) 948-xxxx | 15 | 15 | MCImetro (Verizon Business) | Los Angeles |
| (323) 593-xxxx | 13 | 11 | Metro by T-Mobile (MetroPCS) | Los Angeles |
| (323) 917-xxxx | 12 | 10 | Bandwidth.com | Los Angeles |
Carriers operating in 323
NANPA has assigned 786 323 prefixes (NPA-NXX central-office codes) across 12 rate centers: 32% to wireless carriers, 67% to landline and VoIP operators; 67% are pooled blocks shared by several carriers. The newest assignment was 2025-04-02. The carrier holding a prefix is who the number was issued through. It says nothing about who is calling, since caller ID is routinely spoofed.
| Carrier | Type | Prefixes | Rate centers | Newest assignment |
|---|---|---|---|---|
| Pacific Bell (AT&T) | Incumbent landline (ILEC) | 265(34%) | 12 | 2010-06-07 |
| Metro by T-Mobile (MetroPCS) | Wireless | 85(11%) | 8 | 2017-05-22 |
| T-Mobile USA | Wireless | 64(8%) | 11 | 2024-04-12 |
| Verizon Wireless (Cellco Partnership) | Wireless | 45(6%) | 3 | 2021-09-23 |
| AT&T Mobility (New Cingular Wireless PCS) | Wireless | 39(5%) | 3 | 2018-10-19 |
| Bandwidth.com | Competitive / VoIP (CLEC) | 38(5%) | 10 | 2018-03-23 |
| U.S. Telepacific CORP. dba Tpx Communications | Competitive / VoIP (CLEC) | 37(5%) | 12 | 2015-06-12 |
| Level 3 (Lumen) | Competitive / VoIP (CLEC) | 34(4%) | 12 | 2013-12-19 |
| MCImetro (Verizon Business) | Competitive / VoIP (CLEC) | 29(4%) | 12 | 2010-11-19 |
| Onvoy (Sinch) | Competitive / VoIP (CLEC) | 25(3%) | 12 | 2016-07-18 |
| MCImetro (Verizon Business) | Competitive / VoIP (CLEC) | 23(3%) | 12 | 2014-03-04 |
| Teleport Communications America, LLC | Competitive / VoIP (CLEC) | 20(3%) | 11 | 2019-01-22 |
Largest rate centers (exchanges) by prefixes: Los Angeles (612), Montebello (110). Source: NANPA Central Office Code Utilized Assignments (public, refreshed weekly).
What to do about calls from 323 numbers
Before you call back
- Debt reduction is the top named complaint here. Don't pay upfront fees for debt relief; the FTC's Telemarketing Sales Rule bans them. Talk to your lender or a nonprofit credit counselor instead. Read about debt-relief robocalls.
- Look up the full number above. A missed call from 323 with no voicemail is usually a robocall; anyone who needs you will leave a message.
- Block repeat callers: iPhone, Android, or your carrier's free filter (Verizon, AT&T, T-Mobile).
Report it in California
- Unwanted sales calls and robocalls: donotcall.gov (FTC). Scams and fraud: ReportFraud.ftc.gov.
- Spoofing, texts and call-blocking problems: FCC consumer complaints.
- State complaints: California Attorney General.
- California formally adopted the FTC's National Do Not Call Registry as its own state list rather than running a separate one, so a single free registration at donotcall.gov covers you. State authorities can still enforce against telemarketers who ignore it, in addition to any federal penalty.
Your FTC and FCC reports are published (without your name or number) in the datasets this page is built from. How to report unwanted calls.
Area code 323: questions answered from the data
Where is area code 323?
Area code 323 serves Los Angeles and Montebello, California, covering Los Angeles County. It has been in service since June 13, 1998.
What time zone is area code 323 in?
Area code 323 is in the Pacific time zone (UTC−8, or UTC−7 during daylight saving time). The current local time is shown at the top of this page.
Which area codes overlay 323?
738 (in service 2024) serves the same area as 323. New numbers there can be issued with any of these codes, and local calls need all 10 digits. A spoofed call can display any of them.
What are calls from 323 numbers usually about?
Since Jul 24, consumers filed 1,471 FTC Do Not Call complaints about 323 numbers. The most common named subject was debt-relief pitches: 11% of complaints, 81% of them recorded messages. Across all subjects, 53% of callers who answered the question said the call was a robocall.
When do 323 spam calls happen?
28% of the complaints that give a call time describe calls between 9am and 12pm, and 92% came on weekdays, most often on Monday. Times are as consumers reported them.
Are calls from 323 numbers really local?
Not necessarily. 66% of the FTC complaints about 323 numbers came from California residents, but only 18% from people with 323 numbers themselves. The calls are mostly regional rather than aimed at 323 phones specifically.
Are 323 robocalls increasing?
In the four weeks to Oct 20, consumers filed 517 FTC complaints about 323 numbers, 3% more than the four weeks before.
How do I report a 323 scam call in California?
Report unwanted sales calls and robocalls to the FTC at donotcall.gov, and scams to ReportFraud.ftc.gov. The FCC takes complaints at consumercomplaints.fcc.gov. In California, the California Attorney General also handles consumer complaints about scam calls. Reports feed the public data this page is built from.
Overlay and nearby area codes
Sources: FTC Do Not Call complaints (unverified consumer reports), published every weekday and available here from Jul 24; FCC Consumer Complaint Data, public record, imported nightly; NANPA numbering records. A number appearing here means consumers reported calls that displayed it. Caller ID can be spoofed.