What is Area code 303?
'''Area code 303''' is an area code that is part of [[Colorado]]. It is one of the earliest area codes ever made in 1947. It used to cover the entire state of Colorado, but after it was split by 719 in 1988<ref>https://www.nationalnanpa.com/pdf/old_pl/IL-87%2003-045.pdf</ref> and 970 in 1995,<ref>https://www.nationalnanpa.com/pdf/old_pl/IL%2094-09-012.pdf</ref> it now covers the middle area of the state, specifically in the [[Denver]] and [[Boulder, Colorado|Boulder]] area. It was overlaid by 720 in 1998.<ref>{{Cite web|title=10-Digit Dialing Hits Denver Area|url=https://apnews.com/article/46e08b8b19a101176b4ccb7a17c98364|access-date=2022-03-17|website=AP NEWS|language=en}}</ref> That area was also overlaid by 983 on June 17, 2022.<ref>{{Cite web|date=May 27, 2021|title=Denver's new area code starts in 2022|url=https://www.9news.com/article/life/style/colorado-guide/new-area-code-colorado/73-bf378809-ad9c-4d74-8876-22355667deca|access-date=2022-03-17|website=KUSA.com|language=en-US}}</ref> == References == {{reflist}} [[Category:Colorado]] [[Category:Area codes in the United States|303]] {{stub}}