The 660 area code serves northern and western Missouri, including Sedalia, Chillicothe, Kirksville, and Marshall. Missouri created area code 660 on October 12, 1997, by splitting it from area code 816 to meet the growing demand for phone numbers caused by the rise of cell phones and pagers.
What Is the 660 Area Code? (At a Glance)
| Detail | Information |
|---|---|
| State | Missouri, USA |
| Region covered | Northern and western Missouri |
| Created | October 12, 1997 |
| Split from | Area code 816 |
| Time zone | Central Time (CST/CDT) |
| Major cities | Sedalia, Chillicothe, Kirksville, Marshall, Moberly, Maryville |
| Overlay code | None (single area code, no overlay) |
| Neighboring area codes | 816, 573, 417, 314 |
The 660 area code serves a specific geographic region rather than multiple non-adjacent locations. If you receive a call or text from a 660 number, the caller likely uses a line assigned to northern or western Missouri.
Where Is the 660 Area Code Located?
Area code 660 surrounds the Kansas City metro area, which uses area code 816, on its north, east, and south sides. It covers a large, mostly rural part of Missouri and serves northern and western Missouri under the North American Numbering Plan. Additionally, the 660 area code split from 816 on October 12, 1997.
Cities and Towns Served by the 660 Area Code
Some of the most notable communities using the area code 660 in missouri include:
History: Why Was the 660 Area Code Created?
Missouri’s numbering history explains a lot about why 660 exists today:

Is a Call From the 660 Area Code Safe? Scam & Spoofing Guide
A geographic area code 660 location is not inherently risky, but scammers frequently spoof local-looking numbers (including 660) to increase the odds you’ll answer.
How to Dial a 660 Number
How to Protect Yourself
If you get a call from an unknown number that rings once and disconnects, don’t call it back. Never share personal, banking, or Social Security information during an unsolicited call. Instead, use your carrier’s built-in spam-blocking tools or a reputable call-blocking app to reduce unwanted calls. You can also register your number on the National Do Not Call Registry. While this registration will not stop scammers, it can help reduce calls from legitimate telemarketers.
660 vs. Neighboring Area Codes
| Area Code | Region Covered |
|---|---|
| 660 | Northern/western Missouri (Sedalia, Chillicothe, Kirksville, Marshall) |
| 816 | Kansas City metro area |
| 573 | East-central and southeastern Missouri (Columbia, Jefferson City, Cape Girardeau) |
| 417 | Southwestern Missouri (Springfield, Joplin) |
| 314/ | St. Louis city and inner suburbs |
Frequently Asked Questions (FAQs)
Conclusion
The 660 area code missouri is more than three digits; it’s a direct line to the heart of northern and western Missouri. Since its creation in 1997, it has grown to serve dozens of communities, from college-town Kirksville to fairground-famous Sedalia, giving residents and businesses across this rural stretch of the state a shared telecom identity distinct from the bustling Kansas City metro next door.
