970 area code
Fort Collins area, Mountain Time.Area code 970 covers Fort Collins, Greeley, Grand Junction and 117 more places in Colorado, on Mountain Time. 748 covers the same area.
Right now in Fort Collins
Mountain Time (MST, UTC-7; MDT, UTC-6 in summer)
Calling hours: Every day, 8 AM to 9 PM (the federal rule)
Small talk
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Where 970 numbers come from
Numbers are issued by rate center, a billing area named for its main town. 970 has 120. Each one's share is how many 970 numbers start there.
- Fort Collins12%
- Greeley8%
- Grand Junction7%
- Loveland5%
- Durango4%
- Vail3%
- Glenwood Springs3%
- Montrose2%
- Aspen2%
- Dillon2%
Also: Steamboat Springs, Sterling, Fort Morgan, Cortez, Craig, Windsor, Fraser, Berthoud, Johnstown-Milliken, Pagosa Springs, Telluride, Basalt + 98 more
Share of exchanges (blocks of 10,000 numbers). Source: NANPA rate center and exchange reports, November 10, 2026
When can you call a 970 number?
Sales calls to homes and cell phones have legal hours, set by the federal rule. Hold every 970 number to them, since you can't tell a work line from a personal cell.
What applies to 970Every day, 8 AM to 9 PM
- Federal (TCPA and FTC rule)Every day, 8 AM to 9 PMCalls to residential and mobile numbers. Most calls to businesses are exempt from the FTC's rule.47 CFR 64.1200(c)(1); 16 CFR 310.4(c) (opens in a new tab)
Local time comes from the area code, not from where the person is today. Mobiles keep their number when they move. Calling hours here are a guide, not legal advice. Every state's calling hours, with sources
970 and 748
970 went into service on April 2, 1995, split off from 303. 970 and 748 cover the same area, so new numbers can get either code and neighbors can have different area codes. 970 holds 100% of the area's exchanges; 748 holds the rest. Local calls take all 10 digits.
- 1995970 starts
- 2025748 overlay
Source: NANPA area code database
Other Colorado area codes
All Colorado area codesCalling a list of 970 numbers?
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970 area code FAQ
What area code is 970?
970 is a Colorado area code for Fort Collins, Greeley, Grand Junction, Loveland and 116 more places.
What time zone is the 970 area code in?
Mountain Time (MST, UTC-7; MDT, UTC-6 in summer).
Is 748 the same as 970?
Same area, different code. 970 and 748 cover the same area (an overlay), so new numbers can get any of them and local calls take all 10 digits.
What are the calling hours for 970 numbers?
Every day, 8 AM to 9 PM, local time, under the federal rule.
When did the 970 area code start?
On April 2, 1995. It was split from 303.
Calling 970 numbers? Reach more of them.
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