🇺🇸 279 area code
Area code 279 covers Sacramento, Folsom, Elk Grove and Rancho Cordova and the surrounding area in California. It shares that territory with 916, so the same neighbourhood can have numbers in any of them. Enter a 279 number below for a free check before you call back.
- Location: Sacramento, California
- Time zone: Pacific (UTC−8)
- In service since March 10, 2018
Consultar un número
Validez, operador, tipo de línea y región en la primera pasada.
Area code 279 at a glance
- Area code
- 279
- Location
- California, United States
- Main cities
- Sacramento, Folsom, Elk Grove, Rancho Cordova, Rocklin, Fair Oaks
- Time zone
- Pacific (UTC−8)
- Local time now
- —
- In service since
- March 10, 2018
- Created from
- 916
- Overlay codes
- 916
- Local calls
- Dial 1 + 10 digits
- Number format
- (279) 555-0123
- From abroad
- +1 279 555 0123
Cities in the 279 overlay area
- Sacramento
- Folsom
- Elk Grove
- Rancho Cordova
- Rocklin
- Fair Oaks
- Roseville
- El Dorado Hills
- Lincoln
- Carmichael
Is a 279 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 279 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 279 number to people in California because a local-looking call is more likely to be answered. If a 279 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 279
279 entered service on March 10, 2018, as an overlay on 916, which had run short of numbers.
It is part of the 279/916 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
Because 279 overlays the same ground, the cities listed are those of the codes it shares with.
Preguntas frecuentes
Area code 279 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 279?
Area code 279 is in California, United States. It covers Sacramento, Folsom, Elk Grove, Rancho Cordova, Rocklin and Fair Oaks.
What time zone is area code 279?
279 is in the Pacific (UTC−8) time zone, and observes daylight saving time.
What area codes overlay 279?
916 serves the same area as 279. Numbers in all of them are local to one another.
When did area code 279 start?
279 entered service on March 10, 2018, created from 916.
How do I find out who called me from 279?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 279?
If you live in or near California, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 279 callers who will not leave a message are best looked up before you call back.
Got a call from 279?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.