Area Code 720 — Local Numbers in Denver
720
Denver
Mountain Time
Equip your phone number with Retell’s AI receptionist—trained to answer FAQs, book appointments, qualify leads, and route calls in real time. Local number, enterprise-grade service.
720
Denver
Mountain Time
Equip your phone number with Retell’s AI receptionist—trained to answer FAQs, book appointments, qualify leads, and route calls in real time. Local number, enterprise-grade service.
Telecom, energy, aerospace, financial services, and software.
Denver metropolitan area and nearby cities.
Includes Denver, Aurora, Lakewood, and Boulder suburbs. If your business line starts with 720, Retell's Denver answering service can answer it around the clock.
720 overlay added in 1998. 10-digit dialing standard.
Denver is the Mile-High City — located exactly one mile above sea level.
