Get 983 Area Code Numbers for Local Presence in Denver, Colorado
Grow your business in Colorado, including major cities like Denver, Aurora, Lakewood, and Thornton, with a 983 area code phone number from Calilio. Strengthen local credibility, connect with customers, and make it easier for clients across the region to reach you.
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Where Is the 983 Area Code?
Area code 983 is located in the greater Denver metropolitan area in central Colorado and covers major cities such as Denver, Aurora, Lakewood, Thornton, Arvada, Westminster, and Centennial. The 983 area code serves multiple counties, including Denver, Arapahoe, Jefferson, Adams, Boulder, and Douglas, providing local phone numbers across the central Colorado region.
This is an overlay code, which means it shares the same geographic area as the existing 303 and 720 codes, allowing more phone numbers without splitting the region.
Time Zone
The 983 area code is located in the Mountain Time Zone (MT) of the United States. During Standard Time, it operates on Mountain Standard Time (MST), which is UTC-7 / GMT−7. When Daylight Saving Time is observed, it shifts to Mountain Daylight Time (MDT), which is UTC−6 / GMT−6. Daylight Saving Time begins on the second Sunday in March and ends on the first Sunday in November.
About Colorado
Colorado, located in the western region of the United States, covers approximately 269,837 square kilometres (104,185 square miles) and has a population of over 5.9 million people as of 2023. The state features a mix of urban and suburban areas, with the Denver metropolitan area being the largest and most important economic hub.
The economy in central Colorado is diverse, with major industries including Aerospace, Advanced Manufacturing, Bioscience, Energy and Natural Resources, and Technology and Information. Area code 983 works as the overlay code in this region. Using a 983 area code phone number for business in this region helps establish local credibility, build trust with customers, and create a stronger presence in the market.
History of 983 Area Code
Before the 983 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.
To keep up with continued growth in the Denver metropolitan area, the 983 area code was introduced as another overlay. It officially began service on June 17, 2022, becoming Colorado’s fifth area code. The 983 code was also one of 19 new area codes added across the United States that year.
Currently, Colorado has six area codes. In addition to 303, 720, and 983, the state also uses 719, 970, and the newest 748 area code, which was added in 2025 as an overlay to the 970 region to meet ongoing demand for new numbers.
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Exploring Business Scenario and Outlook of 983 Area Code
The 983 area code covers central Colorado, mainly the Denver metropolitan region, one of the growing business zones in the western United States. This area has seen steady urban expansion, a rising population, and strong infrastructure, making it a preferred base for companies and professionals alike.
The 983 region has a strong and diverse economy supported by major industries such as 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. Additionally, the unemployment rate for Denver remains low at around 3.9% as of July 2025, reflecting a stable job market and steady growth across various sectors.
Leading companies like Google, Western Union, Oracle, and Target have set up major operations in the 983 area code region, which significantly boosts its status as a key economic hub. For growing businesses, using a 983 area code number adds local trust and credibility, which makes it easier to connect with customers, attract talent, and build lasting relationships in one of Colorado’s most active regions.
Nearby Area Codes of 983
983 Area Code Number as a Communication Tool for Business Growth
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Reasons for Businesses to Have a 983 Area Code Number
Alongside establishing a local presence, 983 phone numbers also build credibility and customer trust while being a cost-effective communication solution.
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Increased Customer Trust
Cost Effective Communication
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