Area Code 738 at a Glance
| Area code | 738 |
| Region | California |
| Country | United States |
| Primary timezone | America/Los_Angeles |
| Dialing format | +1 (738) NXX-XXXX |
Frequently Asked Questions
Where is area code 738?
Area code 738 serves California, United States.
Who is calling me from area code 738?
A call from area code 738 most likely originates from California, but caller ID can be spoofed. If an unknown caller asks for personal or payment information, hang up and call the organization back on its official number.
How do I dial a 738 number?
Within North America: dial 1-738 followed by the 7-digit number. From abroad: your international prefix (like 00 or +), then 1 738 and the number.