Columbia Area Code

Columbia, CA is served by area code 209. This area code was initially assigned on 01-JAN-58 and has been in continuous service since 01-JAN-58, supporting the city's growing communication needs over the years.

The area code 209 is part of an overlay complex (209/350), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, CA
Area Code	209
Overlay Complex	209/350
State	California
Country	United State
Time Zone	Pacific Standard Time (PST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-58
In Service Date	01-JAN-58

Columbia, SC is served by area code 803. This area code was initially assigned on 01-JAN-47 and has been in continuous service since 01-JAN-47, supporting the city's growing communication needs over the years.

The area code 803 is part of an overlay complex (803/839), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, SC
Area Code	803
Overlay Complex	803/839
State	South Carolina
Country	United State
Time Zone	Eastern Standard Time (EST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-47
In Service Date	01-JAN-47

Columbia, SD is served by area code 605. This area code was initially assigned on 01-JAN-47 and has been in continuous service since 01-JAN-47, supporting the city's growing communication needs over the years.

City Name	Columbia, SD
Area Code	605
State	South Dakota
Country	United State
Time Zone	Central/Mountain Time
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-47
In Service Date	01-JAN-47

Columbia, TN is served by area code 931. This area code was initially assigned on 15-AUG-97 and has been in continuous service since 15-SEP-97, supporting the city's growing communication needs over the years.

City Name	Columbia, TN
Area Code	931
State	Tennessee
Country	United State
Time Zone	Eastern/Central Time
Code Type	General Purpose Code
In Service	Yes
Assignment Date	15-AUG-97
In Service Date	15-SEP-97

Columbia, IL is served by area code 618. This area code was initially assigned on 01-JAN-47 and has been in continuous service since 01-JAN-47, supporting the city's growing communication needs over the years.

The area code 618 is part of an overlay complex (618/730), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, IL
Area Code	618
Overlay Complex	618/730
State	Illinois
Country	United State
Time Zone	Central Standard Time (CST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-47
In Service Date	01-JAN-47

Columbia, VA is served by area code 804. This area code was initially assigned on 24-JUN-73 and has been in continuous service since 24-JUN-73, supporting the city's growing communication needs over the years.

The area code 804 is part of an overlay complex (686/804), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, VA
Area Code	804
Overlay Complex	686/804
State	Virginia
Country	United State
Time Zone	Eastern Standard Time (EST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	24-JUN-73
In Service Date	24-JUN-73

Columbia, KY is served by area code 270. This area code was initially assigned on 01-FEB-99 and has been in continuous service since 19-APR-99, supporting the city's growing communication needs over the years.

The area code 270 is part of an overlay complex (270/364), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, KY
Area Code	270
Overlay Complex	270/364
State	Kentucky
Country	United State
Time Zone	Eastern/Central Time
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-FEB-99
In Service Date	19-APR-99

Columbia, MD is served by area code 410. This area code was initially assigned on 28-DEC-90 and has been in continuous service since 06-OCT-91, supporting the city's growing communication needs over the years.

The area code 410 is part of an overlay complex (410/443/667), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, MD
Area Code	410
Overlay Complex	410/443/667
State	Maryland
Country	United State
Time Zone	Eastern Standard Time (EST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	28-DEC-90
In Service Date	06-OCT-91

Columbia, AL is served by area code 334. This area code was initially assigned on 26-JAN-94 and has been in continuous service since 15-JAN-95, supporting the city's growing communication needs over the years.

City Name	Columbia, AL
Area Code	334
State	Alabama
Country	United State
Time Zone	Central Standard Time (CST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	26-JAN-94
In Service Date	15-JAN-95

Columbia, MO is served by area code 573. This area code was initially assigned on 31-AUG-95 and has been in continuous service since 07-JAN-96, supporting the city's growing communication needs over the years.

The area code 573 is part of an overlay complex (235/573), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, MO
Area Code	573
Overlay Complex	235/573
State	Missouri
Country	United State
Time Zone	Central Standard Time (CST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	31-AUG-95
In Service Date	07-JAN-96

Columbia, NC is served by area code 252. This area code was initially assigned on 27-FEB-98 and has been in continuous service since 22-MAR-98, supporting the city's growing communication needs over the years.

City Name	Columbia, NC
Area Code	252
State	North Carolina
Country	United State
Time Zone	Eastern Standard Time (EST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	27-FEB-98
In Service Date	22-MAR-98

Columbia, NJ is served by area code 908. This area code was initially assigned on 01-SEP-89 and has been in continuous service since 01-NOV-90, supporting the city's growing communication needs over the years.

City Name	Columbia, NJ
Area Code	908
State	New Jersey
Country	United State
Time Zone	Eastern Standard Time (EST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-SEP-89
In Service Date	01-NOV-90

Columbia, PA is served by area code 717. This area code was initially assigned on 01-JAN-47 and has been in continuous service since 01-JAN-47, supporting the city's growing communication needs over the years.

The area code 717 is part of an overlay complex (223/717), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, PA
Area Code	717
Overlay Complex	223/717
State	Pennsylvania
Country	United State
Time Zone	Eastern Standard Time (EST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-47
In Service Date	01-JAN-47

Columbia, MS is served by area code 601. This area code was initially assigned on 01-JAN-47 and has been in continuous service since 01-JAN-47, supporting the city's growing communication needs over the years.

The area code 601 is part of an overlay complex (601/769), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, MS
Area Code	601
Overlay Complex	601/769
State	Mississippi
Country	United State
Time Zone	Central Standard Time (CST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-47
In Service Date	01-JAN-47

Columbia, LA is served by area code 318. This area code was initially assigned on 01-JAN-57 and has been in continuous service since 01-JAN-57, supporting the city's growing communication needs over the years.

The area code 318 is part of an overlay complex (318/457), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Columbia, LA
Area Code	318
Overlay Complex	318/457
State	Louisiana
Country	United State
Time Zone	Central Standard Time (CST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-57
In Service Date	01-JAN-57