Area Code 636-812 : Area Code 636-899 is your one-stop site for area code lookup, phone number lookup, and free phone number reviews. Following is reverse lookup detail & reviews for area code 636 8xx including 636 area code location map. Major cities such as Valley Park, Defiance, Portage Des Sioux, Saint Charles, Chesterfield covered within area code 636 8xx are also listed on this page. More area codes, including those outside of Missouri, are on the homepage.

Reverse Lookup Detail for Area Code 636 8xx

Area code 636 covers part of Missouristate, covering most of St. Louis, St. Charles, Franklin counties. It was started on Jul 22, 1999. This region follows (UTC-06:00) timezone. Other popular area codes that belong to Missouri state include 314, 417, 573, 660, 816.

Area Code 636-812 - Area Code 636-899 (Covers 636 8xx xxxx phone numbers)

Area CodeCityCountyPopulationNetwork Operator
636-812ChesterfieldSt. Louis1016 814Mcleodusa Telecommunications Services, Inc.- Mo
636-818WashingtonFranklin94 820Rcc Inc Dba Radio-comm
636-821PondSt. Louis1016 823Nuvox Communications Of Missouri, Inc. - Mo
636-825Valley ParkSt. Louis1016 827Southwestern Bell
636-827Valley ParkSt. Louis1016 829Southwestern Bell
636-828DefianceSt. Charles284 830Centurytel Of Missouri, Llc (southwest)
636-841WentzvilleSt. Charles284 843T-mobile Usa, Inc.
636-851HarvesterSt. Charles284 853Kmc Telecom V, Inc.-mo
636-861Valley ParkSt. Louis1016 863Southwestern Bell
636-866Saint CharlesSt. Charles284 868Mci Worldcom Communications, Inc - Mo
636-891ManchesterSt. Louis1016 893Southwestern Bell
636-893Saint LouisSt. Louis1016 895Mci Worldcom Communications, Inc - Mo
636-896Saint CharlesSt. Charles284 898Southwestern Bell
636-898ChesterfieldSt. Louis1016 900Xo Missouri, Inc.
636-899Portage Des SiouxSt. Charles284 901Southwestern Bell


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636 Area Code

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Missouri Area Codes Directory provides a free area codes directory with detailed information on the various USA area codes, area codes listing, and other area codes phone details. also lists international area codes within the North American Numbering Plan. And you can verify owners of phone numbers using the reverse number lookup service by entering a 10 digit phone number in the top most text box.

636 Area Code Finder

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Missouri Area Code Lookup is an excellent resource for area code lookup and reverse number lookup. Here you'll find area codes, city, county, population & operator list table of area codes within the United States. Also, you can verify owners of phone numbers with full name & address information for background check. For a full list of area codes, visit home page. It provides drilldown for USA area codes and area code location maps.

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Telephone/Landline Area Codes is a resource of North American telephone area codes. Beyond area code listings, relevant information about each area code is detailed. For example, this page details area code 636-8. You can also search area codes by state, and within the NANP, find country area codes.

Free Area Codes Locator for Missouri

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636 Area Code Reviews provides local reviews for phone numbers and aggregates results per area code. It shows you the area code location covered by each area code; for example, the LA area code reveiws covers local business phone numbers area in Los Angeles. This page details area code 636-8. All USA states area codes may be found using

Telephone Area Codes in Missouri

The telephone area code prefixes local phone numbers & is not required to be dialed. For area codes by city, search Area codes telephone differ from region to region, and in some places the area code must be dialed even when calling locally within that region. Find out more with area code decoder.

External links & resources for area code 636 in Missouri

  • CitySites Pages for Missouri (Source: Official CitySites)
  • Wikipedia Article on Area Code 636 (Source: Wikipedia)
  • State Information Resources for Missouri (Source: State Information)