Area Code 916 — Sacramento, California

NANP area code

916

UTC−8, UTC−7 during daylight saving

State
California
Primary city
Sacramento
Time zone
Pacific
In service
1947
Overlay
279

The code reaches 48 communities and 7 counties across California.

Was this call legitimate?

The area code itself carries no risk signal. 916 is assigned to Sacramento, California, so a call from it is consistent with a real caller in that area — but the digits alone prove nothing, because they can be forged.

Caller ID is set by whoever places the call, not verified by the network. That is why neighbour spoofing works: an operation anywhere in the world can display a number that matches the area code — and often the first three digits after it — of the person being called, so the call looks local. Every community in the 916 territory is a plausible-looking origin for a forged 916 number, which is why one can be made to look like a neighbour to so many people. The same applies to its overlay code 279, which serves the same ground.

If you did not recognise the call: let it go to voicemail — a legitimate caller with real business will leave one. Do not return the call using the number shown; look the organisation up independently and call the number you found. Never confirm personal details, card numbers, or one-time codes to someone who called you, however plausible the number looked.

Codes.zone publishes no complaint counts, risk scores, or caller identities. We hold no data on individual numbers and will not estimate what we cannot source.

Local time and when to call back

Time there now

Pacific · UTC−8, UTC−7 during daylight saving

Reasonable callback window

8:00 AM – 9:00 PM

local time in Pacific

Federal rules bar telemarketing calls to a residence outside 8:00 AM–9:00 PM in the called party's own time zone. It is a sensible bound for a personal callback too — and a caller who rang you well outside it was not observing it.

Overlay codes and ten-digit dialling

916 does not have its territory to itself. 279 covers the same ground, serving Sacramento and the rest of the 916 territory. An overlay is what a regulator adds when a region runs out of assignable numbers: rather than splitting the area and forcing half the residents to change their number, a second code is laid over the top and new numbers are issued from it.

The practical consequence: two neighbours on the same street can hold numbers in different area codes, so the code tells you nothing about which part of town a caller is in — and local calls must be dialled as all ten digits, because seven is no longer unambiguous.

Cities served

largest 20 by ZIP count
Communities served by area code 916, ranked by how many ZIP codes each holds.
CityZIP codesCounty
Sacramento100Sacramento County
Elk Grove4Sacramento County
West Sacramento4Yolo County
Auburn3Placer County
Citrus Heights3Sacramento County
Rancho Cordova3Sacramento County
Roseville3Placer County
Carmichael2Sacramento County
Folsom2Sacramento County
Rocklin2Placer County
Woodland2Yolo County
Antelope1Sacramento County
Belden1Plumas County
Camino1El Dorado County
Clarksburg1Yolo County
Coloma1El Dorado County
Courtland1Sacramento County
Diamond Springs1El Dorado County
El Dorado1El Dorado County
El Dorado Hills1El Dorado County

28 further communities not listed. All California area codes →

Each point is a community served by 916, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Scope every community matched to 916. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot), GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . Coordinates are place reference points, not boundaries.

Counties

Prefixes inside 916

We do not publish the NXX prefixes inside 916. The assignment of prefixes to rate centres comes from LERG routing data, which is proprietary, and we will not estimate it from postal data — ZIP codes and telephone prefixes do not map onto each other. Awaiting a clean-rights NPA-NXX source.

Why this code exists

916 has served this territory since 1947. It eventually ran short of exchanges to hand out, and rather than split the region and make half its residents change their number, the regulator laid 279 over the same ground in 2018. New lines here are issued from the newer code, which is why a neighbour’s number may not start with 916.