Area Code 660 in Missouri covers a big stretch of the northern and west-central parts of the state. If a 660 number just called you, or you want to know where the code is and what time it is there, this guide has the answers. The code includes towns like Sedalia, Kirksville, Warrensburg, Maryville, Marshall and Chillicothe, plus many smaller communities.
It has been in service since October 12, 1997, when it was split off from area code 816. Today it stands for a wide region, not a single city.
Where Is Area Code 660 Located?
The 660 area code covers the northern and west-central sections of Missouri. Unlike a code tied to one city, it serves a mix of small towns, farming communities and regional centers.
Major Cities and Communities
Some of the best-known places that use 660 are:
- Sedalia
- Warrensburg
- Kirksville
- Maryville
- Marshall
- Chillicothe
- Moberly
- Clinton
- Boonville
- Trenton
Area code boundaries do not always follow city or county lines. That means seeing 660 at the start of a number will not always tell you the exact town.
Area Code 660 Location Map
On a map, 660 fills a broad band across north and west-central Missouri. It sits next to several other Missouri codes, including 816 around Kansas City, 573 in the east and center, and 417 in the southwest.
For an official view, the Missouri Public Service Commission publishes a state area-code map. The North American Numbering Plan Administrator (NANPA) also offers national maps and numbering details.
What Time Zone Is Area Code 660 In?
All of area code 660 is in the Central Time Zone. Local clocks follow:
- Central Standard Time (CST): UTC−6 in winter
- Central Daylight Time (CDT): UTC−5 during daylight saving time
The clocks change twice a year, so double-check the time before you call from another state or country.
Time Difference When Calling a 660 Number
A quick check can save you from calling too early or too late. From the West Coast, Missouri is two hours ahead of Pacific Time. From the East Coast, Missouri is one hour behind Eastern Time.
Quick Facts About Area Code 660
| Detail | Information |
| Area Code | 660 |
| State | Missouri |
| Country | United States |
| Country Calling Code | +1 |
| Main Region | Northern and west-central Missouri |
| Largest Community | Sedalia |
| Other Major Communities | Kirksville, Warrensburg, Maryville, Marshall |
| Time Zone | Central Time |
| Daylight Saving Time | Observed |
| In Service Since | October 12, 1997 |
| Parent Area Code | 816 |
| Nearby Missouri Area Codes | 816, 573, 417 |
| Overlay | None |
Why You Might Get a Call From a 660 Number
A call from a 660 number may come from someone who got their number in that part of Missouri. The area code alone, though, does not prove where the caller is right now.
People can keep their numbers when they move, and scammers can fake caller ID. So do not assume an unfamiliar 660 number is a local caller.
If the call is unexpected, be careful and do not share personal or financial details until you know who is on the line.
History of the 660 Area Code
Missouri’s phone network grew quickly in the 1990s, and the old 816 area needed more numbers. Area code 660 was created as a split from 816 and went live on October 12, 1997.
The split freed up numbers for communities outside the Kansas City core. Today 660 continues to serve homes, mobile phones and businesses across its region.
Final Thoughts
Area Code 660 in Missouri covers a large, mostly rural part of the state, with towns like Sedalia, Kirksville, Warrensburg, Maryville and Marshall at its center. Because the footprint is so wide, a 660 number could be linked to many different communities.
The whole area runs on Central Time, so check the clock before calling from another time zone. Whether you are looking up an unknown number, setting up a business line or just curious about Missouri, knowing the 660 code gives you a clear picture of where it comes from.
Frequently Asked Questions About Area Code 660
Where is area code 660 located?
It is in northern and west-central Missouri.
What city uses area code 660?
Sedalia is one of the main cities, along with Kirksville, Warrensburg and other communities.
What time zone is 660 in?
Area code 660 uses the Central Time Zone.
When did area code 660 start?
It entered service on October 12, 1997.
Is 660 still an active Missouri area code?
Yes. It is still active and in use across northern and west-central Missouri.
