| Area Code | 660 |
| State | Missouri |
| Current Time in Area Code 660 | 660> CST |
| Timezone | Central Standard Time |
| Regional Market Area | Columbia-Jefferson City Area Metro Kansas City Omaha Area Ottumwa-Kirksville Area Quincy-Hannibal-Keokuk Springfield MO Area |
| Metro Area(s) | Kirksville, MO Marshall, MO Maryville, MO Moberly, MO Sedalia, MO Warrensburg, MO |
| Population (2020) | 452828 |
| Adjacent Area Codes | 217,319,402,417,447,531,573,620,641,712,785,816,913,975 |