The 424 area code is located in the state of California, and according to Intelius data, covers roughly 130,947 phone numbers and 176,290 listings across 455 prefixes.
This is a General Purpose Code, in service since August 26, 2006.
Area code 424 is part of an overlay complex shared with:
Area code 424 was split from area code 310.
Local and long-distance calls within area code 424 both require 1 plus 10 digits dialing.
Have you received a call from a number with a 424 area code? Figure out who is calling you by performing a reverse phone lookup search. Intelius can provide you with a phone report that includes (when available) original line type and carrier, the number owner’s name, last known address and past addresses, age, possible relatives, and more.
| County Population (2025) | 9,694,934 |
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