Active Prefixes in Area Code 303
| Prefix | Primary City | Phone Type | Company |
|---|---|---|---|
| 303-291-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-292-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-293-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-294-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-295-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-296-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-297-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-298-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-299-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-300-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-301-#### | Denver | Landline Numbers | Icg Telecom Group - ... |
| 303-302-#### | Englewood | Landline Numbers | Xo Colorado, Llc... |
| 303-304-#### | Fort Lupton | Wireless Numbers | New Cingular Wireles... |
| 303-305-#### | Denver | Landline Numbers | Mcimetro Access Tran... |
| 303-306-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-307-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-308-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-309-#### | Denver | Landline Numbers | Global Crossing Loca... |
| 303-310-#### | Denver | Landline Numbers | Contact Paging Of Co... |
| 303-312-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-313-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-314-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-315-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-316-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-317-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-318-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-319-#### | Denver | Wireless Numbers | Elbert County Wirele... |
| 303-320-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-321-#### | Denver | Landline Numbers | Qwest Corporation... |
| 303-322-#### | 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 | |