Area code 636 serves east central Missouri, including parts of the city of Chesterfield, and all of Union, De Soto, and Troy. This article does not cite its references or sources. ... Chesterfield is a city located in St. ... Union is a city located in Franklin County, Missouri. ... De Soto is a city located in Jefferson County, Missouri. ... Troy is a city in Lincoln County, Missouri, United States. ...
636 is also the original area code for the fictional town of Springfield on the television series The Simpsons. Springfield is the fictional city in which the TV series The Simpsons is set. ... Simpsons redirects here. ...
Trivia
In an episode of The Simpsons entitled A Tale of Two Springfields the (939) area code was created for what became New Springfield after the (636) area code ran out of valid numbers.
A Tale of Two Springfields is an episode from season twelve of the animated TV series The Simpsons. ...
636 is the new areacode that primarily serves extreme southwest St. Louis County and St. Charles County.
Calls from the University to the 636areacode that were local within the 314 areacode (no charge) will remain local (no charge), but will require 9+636+xxx-xxxx, and conversely, calls from those numbers will be required to dial 314+935+xxxx to reach the University.
Calls from the University to the 636areacodes that were previously long distance calls in the 314 areacode will remain long distance calls, but will require 9+1+636+xxx-xxxx, and conversely, calls from those numbers will be required to dial 1+314+935+xxxx to reach the University.
In the right column are all new areacodes to which a number in 501 might have changed by geographic split or realignment since 1995, in reverse chronological order, beginning with the most recent.
Areacode 501 split to form 479 in 2002.
Alberta is served by the 403 and the new 780 areacode; northern Québec is still served by the 819 areacode.
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