983 Area Code: Everything You Need to Know About Colorado’s Newest Area Code

983 Area code

The 983 area code is one of the newest in the United States. It serves parts of Idaho, helping meet the growing demand for new phone numbers across the region. Whether you recently received a call from a number or want to understand where this code is located, this guide explains everything you need to know about the area code, including its cities, history, time zone, and dialling details.

What Is the 983 Area Code?

The area code 983​ covers central Colorado, mainly the Denver metropolitan region, one of the growing business zones in the western United States. If you have recently received a call from a number beginning, or you are looking to get a local Colorado phone number, understanding this area code is essential. Area codes 303, 720, and 983 are telephone area codes in the North American Numbering Plan (NANP) for the north-central portion of the U.S. state of Colorado, comprising Denver and Boulder, as well as their surrounding suburbs, including Lakewood, Littleton, Longmont, Broomfield, Aurora, and Castle Rock.

Where Is the 983 Area Code Located?

The area code 983 location​ in Idaho, in the western United States. It operates as an overlay for the existing 208 area code, meaning both area codes serve the same geographic region.
This area code covers the entire state of Idaho, including major cities, rural communities, and business districts. Since it is an overlay code, residents may receive either a 208 or 983 phone number regardless of their exact location.

Major Cities Covered

The 983 area code usa​ serves many important Idaho cities and communities, including:

  • Boise
  • Meridian
  • Nampa
  • Idaho Falls
  • Pocatello
  • Caldwell
  • Twin Falls
  • Coeur d’Alene
  • Lewiston
  • Rexburg

These cities represent some of Idaho’s fastest-growing residential and commercial regions.

History and Origin of the Area Code

The story of the area code 983 usa​ begins with the explosive growth of the Denver metro areas. Before the area code was introduced, Colorado was mainly served by the 303 area code. As the population and demand for new phone numbers grew, area code 720 was added in 1998 as an overlay to the 303 region, allowing both codes to serve the same area. Even that was not enough to keep pace with demand. In 2020, the North American Numbering Plan Administrator estimated that the Denver metropolitan area would reach numbering exhaustion by 2023. On May 21, 2021, the Colorado Public Utilities Commission approved the addition of area code to the 303/720 overlay complex. Area code was activated on June 17, 2022.

Area code 983

Economy and Business in the Area Code Region

The 983 area code location​ is not just a telephone designation; it represents one of America’s most dynamic economic zones. The 983 region has a strong, diverse economy, supported by major industries including aerospace, advanced manufacturing, bioscience, energy, and technology. Denver is the main commercial centre and plays a key role in Colorado’s economy, which reached a GDP of over $311.876 billion as of 2023.

Time Zone

The area code 983 in us​ in the Mountain Time Zone (MT). This time zone is 7 hours behind Coordinated Universal Time (UTC-7). During daylight saving time, which typically runs from the second Sunday in March to the first Sunday in November, the time zone shifts to Mountain Daylight Time (MDT), which is UTC-6. Residents and businesses in the area code observe daylight saving time in accordance with federal regulations.

How Dialing Works in the Area Code

Since 983 functions as an overlay, there are specific dialling rules that residents and businesses must follow. Customers receiving a 983 area code will be required to dial the codes and phone number for all local calls, just as customers with numbers from the 303 and 720 codes do today. Telephone numbers, including the current area code, will not change. The price of a call, coverage area, or other rates and services will not change as a result of the overlay. What is a local call now will remain a local call.

Is the Area Code a Scam?

Receiving a call from an unfamiliar codes can raise suspicions, but the 983 area code is entirely legitimate. The area code is not toll-free. It is a geographic area code assigned to specific regions within Colorado. Calls made to numbers within the area code are subject to standard local or long-distance charges, depending on the caller’s location and service provider.

Final Thoughts

The 983 area code symbolises Colorado’s rapid growth and the thriving community centred on the Denver metro areas. This area has seen steady urban expansion, a rising population, and strong infrastructure, making it a preferred base for companies and professionals alike. Whether you are a resident, a business owner, or simply curious about a call you received, understanding the area code helps you navigate communications in one of the most vibrant regions in the American West.

Frequently Asked Questions (FAQs)

The 983 area code serves the entire state of Idaho.

Yes. Idaho introduced the 983 area code in 2022 as an overlay for 208.

Major cities include Boise, Meridian, Nampa, Idaho Falls, and Pocatello.

No. The 983 area code is a geographic area code, not a toll-free code.

Yes. Idaho requires 10-digit dialing for all local calls.

Conclusion

The 983 area code represents Idaho’s continued population and business growth. By overlaying the historic 208 area code, Idaho successfully expanded its phone number capacity without forcing residents to change their existing numbers. Today, the area code supports communities across the state, from Boise’s urban centres to Idaho’s rural landscapes.

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