Area code 660
Area code 660 is the telephone area code in the North American Numbering Plan (NANP) for the northern and western part of the U.S. state of Missouri. It was created on October 12, 1997, in a split of area code 816.
Area codes of Missouri
Prior to October 2021, area code 660 had telephone numbers assigned for the central office code 988. In 2020, 988 was designated nationwide as a dialing code for the National Suicide Prevention Lifeline, which created a conflict for exchanges that permit seven-digit dialing. This area code was therefore scheduled to transition to ten-digit dialing by October 24, 2021.[1]
Service area
Major cities
References
- "Transition to 10-digit dialing (for 988 as 3-digit access to National Suicide Prevention Hotline)" (PDF). North American Numbering Plan Administrator. January 8, 2021. Retrieved March 9, 2021.
External links
- (2001). 1947 Area Code Assignment Map. GIF image at AreaCode-Info.com.
| North: 319, 641, 712 | ||
| West: 402, 785, 913 | area code 660 surrounds 816 | East: 573 |
| South: 417 | ||
| Iowa area codes: 319, 515, 563, 641, 712 | ||
| Kansas area codes: 316, 620, 785, 913 | ||
| Nebraska area codes: 308, 402/531 | ||
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