California
Area code 738
Area code 738 covers Los Angeles, Montebello in California, in the Pacific time zone. It has been in service since 2024. It shares its area with 213, 323 (an overlay).
Most reported 738 numbers
Carriers in 738
Line types
Counted over the exchanges, from the carrier each was assigned to.
Cities in area code 738
Every 738 exchange
The first six digits of a number. Each one with 3 or more flagged numbers has its own page: who it was assigned to and the numbers in it.
| Exchange | City | Carrier | Type | Flagged |
|---|---|---|---|---|
| 738-200 | Los Angeles | T-Mobile | Wireless | 0 |
| 738-201 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-202 | Los Angeles | T-Mobile | Wireless | 0 |
| 738-203 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-204 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-205 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-206 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-207 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-208 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-209 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-210 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-212 | Los Angeles | AT&T Mobility | Wireless | 0 |
| 738-213 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-222 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-300 | Los Angeles | Opentact | Landline | 0 |
| 738-333 | Montebello | Wide Voice | Landline | 0 |
| 738-338 | Los Angeles | Boost Subscriberco | Landline | 0 |
| 738-444 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-500 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-529 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-600 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-666 | Montebello | Onvoy (Sinch) | VoIP | 0 |
| 738-738 | Los Angeles | Exiant Communications | Landline | 0 |
| 738-777 | Los Angeles | Wide Voice | Landline | 0 |
| 738-800 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-880 | Los Angeles | 8X8 | VoIP | 0 |
| 738-888 | Los Angeles | Wide Voice | Landline | 0 |
| 738-900 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-998 | Los Angeles | Onvoy (Sinch) | VoIP | 0 |
| 738-999 | Los Angeles | Wide Voice | Landline | 0 |
Area code 738 questions
Where is area code 738?
Area code 738 is in California. Its biggest rate centers are Los Angeles, Montebello.
What time zone is area code 738?
Area code 738 is in the Pacific time zone.
Is a call from area code 738 a scam?
An area code alone can't tell you. Scammers use and spoof numbers in every area code. Look up the full number to see its reports and FTC/FCC complaints.
What carriers use area code 738?
Of its 30 exchanges, the most were assigned to Onvoy (Sinch), Wide Voice, T-Mobile. Numbers can be ported to any carrier, so the exchange shows the original carrier only.
What area codes overlay 738?
738 shares its area with 213, 323. In an overlay, new numbers get the newer codes and you dial all ten digits.