Los Angeles, California
Area code 323 phone validation
Calling or texting a list of 323 numbers? Check every number first: valid or dead, mobile, landline or VoIP, and the carrier it is on now.
Start 7-day free trial →What validating 323 numbers tells you
- ✓Valid or dead. Disconnected and unassigned 323 numbers are flagged before your dialer or SMS tool reaches them.
- ✓Mobile, landline or VoIP. Know which numbers can take a text and which are desk phones or app numbers.
- ✓Carrier. The carrier each number is on now, which can differ from the company that was first given the prefix because numbers are ported.
Who holds 323 prefixes
Companies holding the most 323 prefixes (NPA-NXX blocks) in the NANPA utilized-codes report. This is who was assigned the number blocks, not who serves each number today: a number can be ported to any carrier, which is why a live check matters.
| Pacific Bell | 265 prefixes |
| Metropcs Networks | 85 prefixes |
| T-Mobile Usa | 64 prefixes |
| Mcimetro Access Transmission Services | 52 prefixes |
| Verizon Wireless | 45 prefixes |
| New Cingular Wireless Pcs | 39 prefixes |
137 of 786 323 prefixes are held by companies that commonly supply numbers to VoIP and texting apps.
Places served by 323
Lsan Da 14, Montebello, Lsan Da 06, Lsan Da 09, Lsan Da 13, Lsan Da 02, Lsan Da 03, Lsan Da 05.
Upload your 323 list as CSV or Excel. Every number comes back marked valid or dead, mobile, landline or VoIP, with carrier.
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Questions
Where is area code 323?
323 serves Los Angeles, California, including places such as Montebello, Lsan Da 06, Lsan Da 09. Time zone: Pacific Time (PT).
Which area codes overlap with 323?
213, 310, 424, 747, 818 serve the same area. A list for this area will usually mix these codes, and TrueSearch checks them all the same way.
Does a 323 number mean the person is in California?
Not always. People keep their numbers when they move or switch carriers, and VoIP numbers can be assigned anywhere. The area code tells you where the number was first assigned, not where the person is today.
What does validating a 323 number tell me?
Whether the number is valid or dead, whether it is a mobile, landline or VoIP line, and the carrier it is on now, from live carrier data.
Does TrueSearch check Do Not Call lists?
No. TrueSearch does not check the National Do Not Call Registry, state DNC lists or litigator lists yet. Run those checks separately where they apply.
323 prefix pages
More California area codes
Area code 323 reference: places, prefixes and local time
This guide is general information, not legal advice. TrueSearch for Business checks validity, line type and carrier from licensed telecom data. It does not check the National Do Not Call Registry, state DNC lists or the FCC Reassigned Numbers Database. Not a consumer reporting agency; not for FCRA purposes.