The 816 area code serves Kansas City, Missouri, and 15 counties across northwestern Missouri, including Independence, Lee’s Summit, St. Joseph, and Blue Springs. It sits in the Central Time Zone and has shared its territory with the 975 overlay since October 13, 2023, which means every local call now requires 10-digit dialing.
What Is the 816 Area Code?
The North American Numbering Plan Administration (NANPA) assigned area code 816 as a telephone numbering plan area (NPA). It became one of the original 86 area codes on January 1, 1947, making it Missouri’s first area code. In 1997, Missouri split area code 816 to create area code 660. Later, in 2023, NANPA added area code 975 as an overlay to the 816 area.
Key facts at a glance:
| Detail | Information |
|---|---|
| State | Missouri |
| Region | Kansas City metro & northwestern Missouri |
| Time zone | Central Time (CST/UTC-6, CDT/UTC-5) |
| In service since | January 1, 1947 |
| Overlay code | 975 (activated October 13, 2023) |
| Dialing requirement | 10-digit local dialing (area code + number) |
| Counties covered | 15 counties, including Jackson, Clay, Platte, Buchanan, and Cass |
| Major cities | Kansas City, Independence, St. Joseph, Lee’s Summit, Blue Springs |
Where Is the 816 Area Code Located?
The 816 area code location covers the Missouri side of the Kansas City metropolitan area, not Kansas. This is a common point of confusion because Kansas City straddles two states: Kansas City, Missouri (816), and Kansas City, Kansas (913).
Cities Served by the 816 Area Code
While Kansas City is the anchor city, the area code 816 location covers dozens of surrounding communities. The most populous include:
The 975 Overlay: What Changed in 2023
As Kansas City’s population and demand for phone numbers grew, the supply of available 816 numbers began running low. Rather than splitting the region again (which would force some residents to change their existing numbers), NANPA introduced an overlay: a second area code, 975, layered on top of the same geographic territory as 816.
Is an 816 Number Local or Long Distance?
Because 816 and 975 share the same calling territory, a call between any two numbers in that footprint is local, even if one side is 816 and the other is 975. Long-distance rates only apply if you’re calling outside the shared 816/975 region; for example, to a 913 (Kansas) or 660 (rural Missouri) number, depending on your carrier and plan.
Are 816 Area Code Calls Safe? Spotting Scams
Because 816 is a large, well-known metro area code, it’s frequently spoofed by scammers who want their calls to look local and trustworthy. Common patterns reported by residents include:
If you receive a suspicious call from an 816 or 975 number:
How to Get an 816 Area Code Number
Whether you’re relocating away from Kansas City but want to keep a local presence, or running a business that wants to appear local to Kansas City customers, there are a few ways to get an 816 number:
For businesses, having an 816 number can meaningfully improve local trust signals; customers are generally more likely to answer or call back a number that looks local.
Frequently Asked Questions (FAQs)
Conclusion
The 816 area code missouri remains the defining phone prefix for Kansas City, Missouri, and the surrounding northwestern Missouri region, a status it has held since 1947. The biggest recent change isn’t the code itself but the 975 overlay introduced in 2023, which now requires everyone in the region to dial 10 digits for even the shortest local call.
