- This city has 2 overlayed area codes.
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Area Code 720 serves the north-central region of Colorado, primarily covering the Denver metropolitan area. Established in 1998, it was created as an overlay to the original 303 area code, which dates back to 1947. This overlay system allows for the coexistence of both area codes within the same geographic region, addressing the increasing demand for phone numbers due to population growth and the rise of mobile devices.
The 720 area code encompasses major cities such as Denver, Aurora, and Boulder, along with surrounding suburbs. It provides telecommunication services to a diverse community, integrating both urban and suburban experiences. With its rapid population and economic growth, the region has evolved into a significant hub for technology, healthcare, and education.
In terms of unique characteristics, the 720 area code operates within the North American Numbering Plan (NANP) and utilizes standard telephone numbering formats. It incorporates various service providers and supports a range of telecommunications technologies, including landlines and mobile services. The area code has also adopted modern dialing practices, allowing for ten-digit dialing even for local calls, a method that reflects the need for resource efficiency in telecommunications.
Overall, Area Code 720 plays a vital role in facilitating communication in a region that continues to grow and evolve, reflecting the modern needs of its residents and businesses while maintaining a connection to its historical roots.
Area code 720 serves Denver and surrounding areas in Colorado. Here’s what you need to know about calls in this region.
If you receive a phone call with the first 3 digits 720 in the United States, you should know that they could belong to Arvada (CO), Aurora (CO), Boulder (CO), Brighton (CO), Broomfield (CO), Castle Rock (CO), Castlewood (CO), Columbine (CO), Commerce City (CO), Denver (CO), Englewood (CO), Highlands Ranch (CO), Ken Caryl (CO), Lafayette (CO), Lakewood (CO), Littleton (CO), Longmont (CO), Loveland (CO), Northglenn (CO), Parker (CO), Southglenn (CO), Thornton (CO), Westminster (CO), Wheat Ridge (CO).
Dialing the area code 720 from another state in the United States is considered a long-distance call. Here’s how to make the call: First, dial the area code for 720. Each state, and sometimes specific cities within a state, has unique area codes. Then, enter the 7-digit phone number of the person or business you’re trying to reach. If you’re calling from a landline, check with your provider, as long-distance charges may apply. However, most mobile carriers in the U.S. offer nationwide calling without additional fees. Alternatively, you can use VoIP or internet-based calling apps, like Skype, Zoom, or WhatsApp, to bypass traditional long-distance charges. The number you want to reach should look like this: 1-(AreaCode)-111-2222.
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