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Area code 660

Area code 660 Sedalia, Missouri

Area code 660 is in Missouri, with numbers assigned in Sedalia, Kirksville, Warrensburg and 196 more places. It’s 11:10 PM there now.

State
Missouri9 area codes in Missouri
Time zone
Central11:10 PM there now
Exchanges
518199 places
Overlay
NoneThe only code for its area
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Where area code 660 is

Numbers in 660 are assigned to 199 places in 44 counties: Pettis County, Henry County, Johnson County, Saline County, Nodaway County, Lafayette County, plus 38 more.

No single place dominates: Sedalia, the largest, has 4% of the exchanges.

  • Sedalia23
  • Kirksville15
  • Warrensburg14
  • Clinton13
  • Maryville10
  • Moberly10
  • Marshall9
  • Chillicothe9
  • Butler6
  • Warsaw6
  • Trenton6
  • Boonville6
  • Knob Noster5
  • Higginsville5
  • Brookfield5
  • Bethany5
  • Macon5
  • Smithton4
  • Sweet Springs4
  • Otterville4
  • Blairstown4
  • Green Ridge4
  • Urich4
  • Leeton4

Phone companies in 660

518 blocks of numbers in 660 are held by 47 phone companies. The most belong to Lumen (Level 3) (63), Lumen (CenturyLink) (47) and Inteliquent (41).

A mix: about 15% wireless, 49% local phone and cable and 35% other carriers, including internet phone services.

A block’s holder is the company it was first assigned to; numbers can move to other carriers since.

History and overlays

660 went into service in 1997, added to the area of 816.

32 new exchanges were assigned since 2021, the latest in October 2026.

Calling 660

It’s 11:10 PM Central time in 660 right now.

From elsewhere in the U.S., dial 1, 660 and the 7-digit number.

Nearby area codes

Missouri has 9 area codes: 235, 314, 417, 557, 573, 636, 660, 816 and 975.

From the North American Numbering Plan Administrator’s area code and exchange records (10/22/2026) and U.S. Census place and county names. Places and companies are where number blocks were assigned, not where anyone lives or which carrier a number uses today.

Map of the 660 area code

Map of the 660 area code around Sedalia, Kirksville and Warrensburg, Missouri.

Interactive map © OpenStreetMap contributors

Cities on the map

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Questions about 660

Where is area code 660?

In Missouri, covering Sedalia, Kirksville and Warrensburg and other places across 44 counties.

What time zone is 660 in?

Central time. It was 11:10 PM there when this page loaded.

Is 660 an overlay?

No. 660 is the only area code for its area right now.

Which phone companies have 660 numbers?

47 companies hold blocks; the most belong to Lumen (Level 3), Lumen (CenturyLink) and Inteliquent. About 15% of blocks are wireless.

Is 660 running out of numbers?

Not on record. 32 new exchanges have been assigned since 2021.