Parker City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 303 | US | Colorado - CO | Parker | Mountain | Details |
| 605 | US | South Dakota - SD | Parker | Central / Mountain | Details |
| 724 | US | Pennsylvania - PA | Parker | Eastern | Details |
| 814 | US | Pennsylvania - PA | Parker | Eastern | Details |
| 913 | US | Kansas - KS | Parker | Central | Details |
| 928 | US | Arizona - AZ | Parker | (UTC-7) | Details |