California
Area code 357
Area code 357 covers Clovis, Firebaugh, Fresno, Hanford, Kingsburg and more in California, in the Pacific time zone. It has been in service since 2025. It shares its area with 559 (an overlay).
Most reported 357 numbers
Carriers in 357
Line types
Counted over the exchanges, from the carrier each was assigned to.
Cities in area code 357
Every 357 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 |
|---|---|---|---|---|
| 357-200 | Lemoore | Verizon Wireless | Wireless | 0 |
| 357-222 | Kingsburg | Onvoy (Sinch) | VoIP | 0 |
| 357-333 | Firebaugh | Onvoy (Sinch) | VoIP | 0 |
| 357-357 | Springvl | Onvoy (Sinch) | VoIP | 0 |
| 357-444 | Clovis | Onvoy (Sinch) | VoIP | 0 |
| 357-666 | Sanger | Onvoy (Sinch) | VoIP | 0 |
| 357-777 | Hanford | Wide Voice | Landline | 0 |
| 357-888 | Fresno | Opentact | Landline | 0 |
| 357-999 | Visalia | Exiant Communications | Landline | 0 |
Area code 357 questions
Where is area code 357?
Area code 357 is in California. Its biggest rate centers are Clovis, Firebaugh, Fresno, Hanford, Kingsburg.
What time zone is area code 357?
Area code 357 is in the Pacific time zone.
Is a call from area code 357 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 357?
Of its 9 exchanges, the most were assigned to Onvoy (Sinch), Verizon Wireless, Wide Voice. Numbers can be ported to any carrier, so the exchange shows the original carrier only.
What area codes overlay 357?
357 shares its area with 559. In an overlay, new numbers get the newer codes and you dial all ten digits.