424 area code
Where the 424 area code is, its overlay and how to dial a +1 424 number from anywhere.
The 424 area code is in Los Angeles, California, United States (Pacific (PT)). To call from abroad: +1 424 555-0123. It is an overlay, so all 10 digits are dialled.
The 424 area code is a geographic North American Numbering Plan (NANP) code covering Los Angeles, California. It has been in service since 26-May-1998 and sits in the Pacific (PT) time zone.
How to dial a 424 number
+1 424 555-01231 424 555-0123424 555-0123Cities in the 424 area code
A 424 number is usually in one of these places in California — 1 county.
Other California area codes
Frequently asked questions
Where is the 424 area code?
The 424 area code is in Los Angeles, California, United States (Pacific (PT)).
Is 424 an overlay area code?
Yes. 424 overlays the same region as 310, so callers dial all 10 digits.
Do I have to dial 10 digits for 424?
Yes — dial the area code plus the seven-digit number.
How do I call a 424 number from another country?
Dial your exit code (or +), then 1, then 424, then the number: +1 424 555-0123.
Source: NANPA numbering plan. An area code covers a region, not a precise address — a 424 number does not pinpoint a street or ZIP code.
Number holders in area code 424
Each prefix (the three digits after the area code) is assigned by NANPA to one telephone company. 475 prefixes are in use in 424, shared by 29 companies. The largest holders:
| Company | Prefixes | Share |
|---|---|---|
| T-Mobile USA, Inc. | 74 | 16% |
| Onvoy, LLC | 69 | 15% |
| Bandwidth.Com CLEC, LLC | 45 | 9% |
| Level 3 Communications, LLC | 42 | 9% |
| New Cingular Wireless PCS, LLC | 36 | 8% |
| Fractel, LLC | 33 | 7% |
Source: NANPA central office code assignments. A number keeps its original prefix when it is ported to another carrier.
Complaints about 424 numbers
- Reports to the FTC, last 30 days
- 421
- Recorded messages or robocalls
- 57%
- Rank among area codes
- #236 of 670
- Most reported subjects
- Other (159)
- Dropped call or no message (94)
- Reducing your debt (credit cards, mortgage, student loans) (62)
Period Aug 26 – Sep 24, 2026. These are the numbers shown on the caller ID of the reported calls; many are spoofed and do not belong to the real caller.
Source: US Federal Trade Commission, Do Not Call reported calls data (daily files).
All US area codes United States +1 Map of area code 424 — cities & rate centres