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zipcodes.pro — AREA-CODE/279

279 area code

Area code 279 is in California. It covers Sacramento, Elk Grove, Roseville and 38 other places: 142 ZIP codes in Sacramento, Placer, Yolo and 2 other counties. Local time there is , Pacific Time. In service since 2018 as an overlay: it covers the same area as 916, so a number from there can have either code.

Time zone
Pacific
Largest city
Sacramento
Overlays
916
In service since
2018
Rate centres
16
Prefixes assigned
149 (1,490,000 numbers)

Who calls from a 279 number

NANPA records the carrier each block of 279 numbers is assigned to. Of the 1.4 million 279 numbers assigned, 53% are with cable, internet-calling, business and other carriers (Onvoy, Bandwidth and Fractel); 47% with mobile carriers (T-Mobile, Verizon Wireless and AT&T Mobility).

That is who the numbers were assigned to: people keep their number when they change carrier, so any one number may have moved since.

Carriers holding the most 279 numbers
CarrierKindShare
OnvoyCable, VoIP, other28%
T-MobileMobile18%
Verizon WirelessMobile15%
AT&T MobilityMobile13%
BandwidthCable, VoIP, other7%
FractelCable, VoIP, other3%

An area code says where a number was issued, not where the caller is: people keep their numbers when they move, and caller ID can be set to show any number, which the FCC calls spoofing. If a call you did not expect asks for money or personal details, the FCC advises hanging up and calling the company back on a number you look up yourself. Unwanted calls can be reported to the FTC at ReportFraud.ftc.gov.

Places in area code 279

The 11 places with a telephone rate centre of their own using 279, largest first. Each links to its ZIP codes.

Places in area code 279
PlaceZIP codesPopulation
Sacramento, CA 100 528,706
Elk Grove, CA 4 179,155
Roseville, CA 3 155,955
Folsom, CA 2 83,916
Lincoln, CA 1 52,956
Fair Oaks, CA 1 32,799
Rio Linda, CA 1 16,335
Walnut Grove, CA 1 926
Isleton, CA 1 522
Pleasant Grove, CA 1 515
Courtland, CA 1 496

Nearby places using 279

These places have no rate centre of their own in NANPA's records; the nearest one uses 279. Near an area-code boundary that can be wrong for part of a town.

ZIP codes in area code 279

142 ZIP codes in 28 towns, by the town each is mailed to, largest first. Each links to its own page.

Where 279 numbers are issued

NANPA's rate centres with the most 279 prefixes (each prefix is 10,000 numbers), under NANPA's own abbreviated names.

Rate centres using area code 279
Rate centrePlacePrefixes
SCRM MAIN Sacramento 45
SCRM NORTH Sacramento 25
FOLSOM Folsom 16
ELK GROVE Elk Grove 12
RSVL MAIN Roseville 11
FAIR OAKS Fair Oaks 7

Counties

The counties of its ZIP codes, most residents first, with how many of its ZIP codes each has.

Which code covers where you are now? What area code am I in? answers from your location.

Questions about area code 279

Where is area code 279?

Area code 279 is in California. It covers Sacramento, Elk Grove, Roseville and 38 other places: 142 ZIP codes in Sacramento, Placer, Yolo and 2 other counties.

What ZIP codes are in area code 279?

142 ZIP codes, by the town each is mailed to: Sacramento (100, 94203 to 95899), Elk Grove (4, 95624 to 95759), Roseville (3, 95661 to 95747), Citrus Heights (3, 95610 to 95621) and 24 more towns. The full list is on this page.

What time zone is area code 279 in?

Pacific time.

Is a 279 number a mobile or a landline?

It can be either. 47% of 279 numbers are assigned to mobile carriers and 0% to local phone companies (NANPA, 2026-10-10); the rest are with cable, internet-calling, business and paging carriers. A number keeps its area code when it moves to another carrier.

What area codes overlay 279?

916. They cover the same area as 279, so a new number there can be given any of them.

Does a 279 number mean the caller is in California?

Not necessarily. An area code says where the number was first issued. People keep their numbers when they move or switch carriers, and calling software can show any number, so a 279 call can come from anywhere.

Other area codes in California

All 41 California area codes, by area, with the cities each covers

Source: NANPA NPA database, central office code and thousands-block assignments, 2026-10-10. Places are matched to NANPA's rate centres by name; see sources.

Cite this page

zipcodes.pro. “Area code 279.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/area-code/279

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