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Area code 970

Area code 970 serves Colorado, including Fort Collins, Greeley and Grand Junction (Mountain time). It has been in service since April 2, 1995 and shares its area with 748.

Numbers starting with 970 drew 2,598 reports to the FTC from Aug 14, 2026 to Nov 11, 2026 and 1,229 complaints to the FCC since November 2023. The number on your screen can be faked, so a 970 number proves nothing about where a call came from.

Location
Colorado
Time zone
Mountain
In service since
April 2, 1995Created from 303
Overlay
Same area as 748
Local calls
Dial 10 digitsArea code needed, even next door
Exchanges in use
786 of 792held by 60 carriers
Projected to run out
1Q 2101NANPA forecast 2026.2

Complaints about 970 numbers

Reports where the number on the consumer's caller ID (or, for the FCC, the number the caller asked them to call back) starts with 970. These are counts of what people reported; the agencies do not verify them.

FTC reports, Aug 14, 2026 to Nov 11, 2026

2,598

FCC complaints since November 2023

1,229

Different 970 numbers reported

3,470

FCC complaints naming a 970 number, by month

November 2023 to October 2026. Source: FCC Consumer Complaints Data.

Show as a table
MonthComplaints
November 202321
December 202325
January 202424
February 202421
March 202429
April 202428
May 202425
June 202441
July 202426
August 202418
September 202415
October 202433
November 202420
December 202428
January 202541
February 202528
March 202563
April 202540
May 202524
June 202540
July 202527
August 202542
September 202541
October 20251
November 202515
December 202525
January 202630
February 202617
March 202623
April 202662
May 202662
June 202657
July 202653
August 202655
September 202647
October 202659

What people said 970 calls were about

Subjects picked in FTC reports, August 14, 2026 to November 11, 2026. 1,923 of 2,598 reports were robocalls.

Show as a table
SubjectReports
Other934
Reducing your debt (credit cards, mortgage, student loans)750
Dropped call or no message282
Calls pretending to be government, businesses, or family and friends228
Medical and prescriptions104
Warranties and protection plans62

Most reported 970 numbers

Numbers with at least five reports from three or more places in the last twelve months. Many of them are likely spoofed.

Places served by 970

NANPA lists 120 rate centers for 970. A rate center is the town or district a block of numbers is tied to for billing; sorted here by how many exchanges each holds.
  • Fort Collins96
  • Greeley62
  • Grand Junction57
  • Loveland36
  • Durango29
  • Vail24
  • Glenwood Springs21
  • Montrose19
  • Aspen17
  • Dillon17
  • Steamboat Springs15
  • Sterling13
  • Craig11
  • Fort Morgan11
  • Cortez10
  • Windsor10
  • Fraser9
  • Berthoud8
  • Johnstown-Milliken8
  • Pagosa Springs8
  • Telluride7
  • Basalt6
  • Carbondale6
  • Delta6
Show all 120 rate centers

Edwards, Estes Park, Fruita, Gunnison, Rangely, Akron, Breckenridge, Brush, Eagle, Eaton, Granby, Gypsum, Hayden, Maybell, Meeker, Ridgway, Rifle, Walden, Yuma, Bayfield, Collbran, Crested Butte, Dinosaur, Dolores, Julesburg, Kremmling, La Salle, Marvel, Mead, New Castle, Olathe, Ouray, Palisade, Parachute, Platteville, South Cheyenne, Allison, De Beque, Dove Creek, Eckley, Gilcrest, Grand Lake, Hot Sulphur Springs, Ignacio, Lake City, Mancos, Mccoy, Mesa, Norwood, Otis, Red Feather Lakes, Silt, Silverton, South Big Springs, South Laramie, Weldona, Wray, Yampa, Crawford, Eckert, Hillrose, Hotchkiss, Lodore, Oak Creek, Paonia, South Sidney, Anton, Briggsdale, Cedaredge, Cimarron, Cope, Crook, Fleming, Gateway, Grover, Haxtun, Holyoke, Idalia, Joes, Kirk, Naturita, New Raymer, Nucla, Nunn, Paradox, Peetz, Pleasant View, Rico, Somerset, South Baggs, Stoneham, Vona Seibert, West Venango, Wiggins, Willard, Woodrow.

Phone companies holding 970 exchanges

Each exchange (the three digits after the area code) is assigned to one carrier. 68% of these exchanges are pooled: their numbers are handed out in blocks of 1,000 to other carriers, so the holder below is not always the company serving a given number.

Exchanges held, top 8 of 60 carriers

NANPA central office code assignments, file of November 11, 2026.

Show as a table
Carrier (legal name)Exchanges
Qwest Corporation189
Onvoy, LLC - CO99
Cellco Partnership dba Verizon Wireless - CO77
T-Mobile USA, Inc.70
New Cingular Wireless PCS, LLC54
Level 3 Communications, LLC - CO47
Ton80 Communications, LLC22
Centurytel of Eagle, Inc. dba Centurylink21

When today's 970 exchanges were assigned

Exchanges still assigned, by year of assignment. Exchanges returned since are not counted.

Show as a table
YearExchanges
200125
200233
200310
20049
200514
200613
200733
20085
20097
20109
20118
201212
201313
201421
201511
201616
20177
20186
201919
202010
202116
202230
202315
202415
202510
202617

Check a 970 number

A check shows the carrier and rate center of the number's exchange and every FTC and FCC report about that exact number. Why the number on screen can be fake.

Other area codes in Colorado

NANPA area code database and central office code file of November 11, 2026; FCC complaints November 1, 2023 to November 11, 2026; FTC reports August 14, 2026 to November 11, 2026. How the data is used.

Official sources (7)Show