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Where Is 660 Area Code?

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Database Updated: August 29, 2025
Missouri Phone Number Lookups
Where Is 660 Area Code?

Where is Area Code 660?

Area code 660 is located in the state of Missouri. It serves a variety of regions, counties, and cities, providing essential telecommunication services to its residents. The major areas covered by area code 660 include:

  • Kirksville
  • Sedalia
  • Warrensburg
  • Marshall
  • Moberly
  • Chillicothe
  • Maryville
  • Clinton

This area code encompasses a significant portion of northern and western Missouri, offering connectivity to both urban and rural communities. For more information about the regions served by area code 660, visit the Missouri Public Service Commission.

Missouri Public Service Commission
200 Madison Street, PO Box 360, Jefferson City, MO 65102-0360
Utility Consumer Hotline: (800)-392-4211
pscinfo@psc.mo.gov

What time zone is 660 area code in the USA?

The 660 area code is situated in the Central Time Zone (CT) of the United States. This time zone observes Daylight Saving Time, shifting from Central Standard Time (CST) to Central Daylight Time (CDT) during the warmer months. This change typically occurs in the spring and reverts in the fall, aligning with national standards. For accurate timekeeping, refer to the National Institute of Standards and Technology.

History of the 660 Area Code

The 660 area code was established in 1997 as a result of a split from the original 816 area code. This change was necessitated by the increasing demand for telephone numbers, driven by population growth and the proliferation of mobile devices. The split allowed for a more efficient allocation of numbers and better service to the residents of Missouri. For detailed historical data, consult the North American Numbering Plan Administrator (NANPA).

NANPA Mailing Address
One Tower Center Boulevard
Suite 800
East Brunswick, NJ 08816

NANPA Customer Support
Tel: 1-866-623-2282
Email: support@nanpa.com
Fax: 571-363-3838

How Many People Use the 660 Area Code?

The 660 area code serves a diverse population across its coverage area in Missouri. The region includes both densely populated cities and more sparsely populated rural areas. For comprehensive demographic information, visit the U.S. Census Bureau.

U.S. Census Bureau
4600 Silver Hill Road, Washington, DC 20233
Tel: 301-763-INFO (4636) or 800-923-8282

Is the 660 Area Code Toll-Free?

The 660 area code is a geographic code, not a toll-free number. It is designated for specific regions within Missouri and is used for standard telecommunication services. Toll-free numbers in the United States typically begin with prefixes such as 800, 888, 877, 866, 855, 844, and 833. These numbers are distinct from geographic area codes like 660. For more information on toll-free numbers, refer to the Federal Communications Commission.

Federal Communications Commission
45 L Street NE, Washington, DC 20554
Tel: 1-888-CALL FCC (225-5322)
https://www.fcc.gov/

Missouri Phone Numbers
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