State
Missouri
Major City
O'Fallon
Time Zone
America/Chicago
Current Time
3:08 AM
636 Area Code
Reverse Phone Lookup
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Area Code info
Where is Area Code 636?
The 636 area code is located in the state of Missouri . 636 is one of the 357 three-digit telephone area codes in the USA. It covers roughly 786,160 unique phone numbers and 6,177,957 individuals near the cities of O'Fallon, Ballwin, Chesterfield in our database.
Cities in the 636 Area Code
The most populous cities in area code 636 are
O'fallon
93.7kSaint Charles
71.2kSaint Peters
57.3kFlorissant
52.4k Other cities in area code 636 include
Chesterfield
Wentzville
Wildwood
Ballwin
Maryland Heights
Arnold
Lake Saint Louis
Washington
Saint Ann
Festus
Troy
Union
Eureka
Bridgeton
Warrenton
Pacific
Valley Park
Barnhart
De Soto
Pevely
636 Area Code Time Zone
This time zone is known as the Central Standard Time (CST). The current time in this time zone is 3:08 AM on Jul 10, 2025.
In Service Date: May 22, 1999
636 Area Code Demographics
Statistics based on US Census data for the 636 area code
39.1
Median Age
$64.8k
Median Income
$221.2k
Median Home Value
6.2M
Total People
Nearby Area Codes
Phone Numbers
1,906,322
State
Missouri
Major City
St. Louis
Phone Numbers
919,593
State
Missouri
Major City
Springfield
Phone Numbers
1,051,975
State
Missouri
Major City
Columbia
Phone Numbers
1,842,716
State
Illinois
Major City
Aurora
Phone Numbers
1,489,037
State
New York
Major City
Brentwood
Phone Numbers
192
State
New Jersey
Major City
Trenton
Phone Numbers
388,171
State
Missouri
Major City
Sedalia
Phone Numbers
1,499,380
State
Missouri
Major City
Kansas City
Reverse Phone Lookup 636-XXX-XXXX
Find out who the 636 phone number is registered under. Our free reverse phone lookup allows you to search records associated with a landline or cell phone number to help quickly identify who’s calling or texting you.
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Browse Phone Number Prefixes in the 636 Area Code
Landlines
377Wireless Prefixes
18Carriers
34Countries
9ZIP Codes
87Prefix
(636) 479County
JeffersonCity
Herculaneum-PevelyCarrier
At&T Internet ServicesPrefix
(636) 543County
JeffersonCity
Festus-Crystal CityCarrier
At&T Internet Services