Skip to content
Country Dialing CodesConnecting a more open world A clearer
more connected world.
US area code · Colorado

Area code 970

Where the 970 area code is, its overlay and how to dial a +1 970 number from anywhere.

CoversFort Collins, ColoradoTime zoneMountain (MT)TypeOverlay
Quick answer

The 970 area code is in Fort Collins, Colorado, United States (Mountain (MT)). To call from abroad: +1 970 555-0123. It is an overlay, so all 10 digits are dialled.

StateColorado
Main areaFort Collins
Time zoneMountain (MT)
TypeOverlay
10-digit dialingRequired
In service since21-Sep-1994

The 970 area code is a geographic North American Numbering Plan (NANP) code covering Fort Collins, Colorado. It has been in service since 21-Sep-1994 and sits in the Mountain (MT) time zone.

Overlay 970 shares its region

Several area codes cover the same geographic area, so two neighbours can have different codes. Because of the overlay, you must dial all 10 digits (area code + number) even for local calls.

970303748

How to dial a 970 number

From abroad+1 970 555-0123
Within the US / Canada1 970 555-0123
Locally (same area)970 555-0123

Cities in the 970 area code

A 970 number is usually in one of these places in Colorado — 3 counties.

Fort Collins LarimerGrand Junction MesaGreeley WeldLoveland Larimer

Other Colorado area codes

303719720748983

Frequently asked questions

Where is the 970 area code?

The 970 area code is in Fort Collins, Colorado, United States (Mountain (MT)).

Is 970 an overlay area code?

Yes. 970 overlays the same region as 303, 748, so callers dial all 10 digits.

Do I have to dial 10 digits for 970?

Yes — dial the area code plus the seven-digit number.

How do I call a 970 number from another country?

Dial your exit code (or +), then 1, then 970, then the number: +1 970 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 970 number does not pinpoint a street or ZIP code.

Missed a call from +1 970?

In the 30 days to September 24, 2026, 819 unwanted calls showing a 970 number were reported to the US Federal Trade Commission, 74% of them recorded messages or robocalls. That puts 970 at #73 of 670 area codes reported.

Reducing your debt (credit cards, mortgage, student loans)309
Other270
Dropped call or no message95
Calls pretending to be government, businesses, or family and friends38
Before you call back
  • If you do not know anyone in Colorado, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 970 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 970 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 970:

Qwest Corporation 189Onvoy, LLC 88Cellco Partnership Dba Verizon Wireless 77T-Mobile USA, Inc. 70New Cingular Wireless PCS, LLC 54Level 3 Communications, LLC 47

About 25.5% of the 789 prefixes in use belong to mobile carriers: a 970 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 970 — cities & rate centres