| Area Code | 816 |
| State | Missouri |
| Current Time in Area Code 816 | 816> CDT |
| Timezone | Central Daylight Time |
| Regional Market Area | Metro Kansas City |
| Metro Area(s) | Kansas City, MO-KS St. Joseph, MO-KS |
| Population (2020) | 1352195 |
| Adjacent Area Codes | 660,785,913,975 |
| Overlay Area Codes | 975 |
| Andrew County |
| Buchanan County |
| Caldwell County |
| Cass County |
| Clay County |
| Clinton County |
| DeKalb County |
| Jackson County |
| Platte County |
| Ray County |
| Blue Springs |
| Independence |
| Kansas City |
| Lee's Summit |
| Liberty |
| St. Joseph |