Clayton City Area Code List
| Area Codes | Country | State | City | Time Zone | Operating |
|---|---|---|---|---|---|
| 208 | US | Idaho - ID | Clayton | Mountain / Pacific | Details |
| 217 | US | Illinois - IL | Clayton | Central | Details |
| 315 | US | New York - NY | Clayton | Eastern | Details |
| 317 | US | Indiana - IN | Clayton | Eastern | Details |
| 334 | US | Alabama - AL | Clayton | Central | Details |
| 517 | US | Michigan - MI | Clayton | Eastern | Details |
| 575 | US | New Mexico - NM | Clayton | Mountain | Details |
| 706 | US | Georgia - GA | Clayton | Eastern | Details |
| 715 | US | Wisconsin - WI | Clayton | Central | Details |
| 918 | US | Oklahoma - OK | Clayton | Central | Details |
| 919 | US | North Carolina - NC | Clayton | Eastern | Details |
| 925 | US | California - CA | Clayton | Pacific | Details |