Active Prefixes in Area Code 303
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 303-504-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-505-#### | Englewood | Wireless Numbers | Sprint Spectrum L.p.... |
| 303-506-#### | Fort Lupton | Wireless Numbers | New Cingular Wireles... |
| 303-507-#### | Denver | Wireless Numbers | Sprint Spectrum L.p.... |
| 303-508-#### | Denver | Landline Numbers | American Messaging (... |
| 303-509-#### | Denver | Landline Numbers | American Messaging (... |
| 303-510-#### | Denver | Landline Numbers | American Messaging (... |
| 303-512-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-513-#### | Denver | Wireless Numbers | New Cingular Wireles... |
| 303-514-#### | Englewood | Wireless Numbers | Cellco Partnership D... |
| 303-515-#### | Denver | Landline Numbers | 360networks (usa) In... |
| 303-516-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-517-#### | Denver | Wireless Numbers | New Cingular Wireles... |
| 303-518-#### | Aurora | Wireless Numbers | Cellco Partnership D... |
| 303-519-#### | Denver | Wireless Numbers | Cellco Partnership D... |
| 303-520-#### | Denver | Wireless Numbers | Sprint Spectrum L.p.... |
| 303-521-#### | Denver | Wireless Numbers | Sprint Spectrum L.p.... |
| 303-522-#### | Englewood | Wireless Numbers | Sprint Spectrum L.p.... |
| 303-523-#### | Denver | Wireless Numbers | T-mobile Usa, Inc.... |
| 303-524-#### | Denver | Landline Numbers | Teleport Communicati... |
| 303-525-#### | Denver | Wireless Numbers | Sprint Spectrum L.p.... |
| 303-526-#### | Golden | Landline Numbers | Qwest Corporation... |
| 303-527-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-528-#### | Denver | Landline Numbers | American Messaging (... |
| 303-529-#### | Denver | Wireless Numbers | Usa Mobility Wireles... |
| 303-530-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-531-#### | Denver | Landline Numbers | Mcimetro Access Tran... |
| 303-532-#### | Longmont | Landline Numbers | Mcleodusa Telecommun... |
| 303-533-#### | Broomfield | Landline Numbers | Qwest Corporation... |
| 303-534-#### | Denver | Landline Numbers | Qwest Corporation... |
Area Code 303 Introduction
| Area Code: | 303 |
| Country: | United States |
| State/Province: | Colorado - CO |
| Major City: | Denver |
| Time Zone: | Mountain |
| Average property | $216K |
| Average age | 49 y/o |
| Average assets | $41.5K |
| Population density | 104,094 sq mi (269,837 km2) |
| Population | 5,540,545 |
| latitude Longitude: | |
| 37°N to 41°N / 102°03'W to 109°03'W | |
| About 303 : | |
| The 303 Area Code (or Area Code 303) is located in the state of CO. Area Code 303 is one of the 269 3-digit telephone area codes in the USA. It covers roughly 3.1 million unique phone numbers and 10.9 million individuals near the city of Denver Area code 303 was put into service. In 1988 Area code 303 was split to form area code 719. In 1995 area code 303 was split to form area code 970. In 1998 area code 303 was overlaid with area code 720. |
|
| Major cities or places | |
| 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 | |