2. ...
  3. 723 Prefixes

723 Area Code Phone Directory

Phone Prefixes in the 723 Area Code

(723) 2XX (723) 3XX (723) 4XX (723) 5XX (723) 6XX (723) 7XX (723) 8XX (723) 9XX

Information for Area Code 723

State: IL
Largest City in Area: CHICAGO

Where is Area Code 723?

Area code (723) is in the state of IL. Below, are the major cities in the area code (723).

Area Codes Starting with 7

Major Cities in 723

CHICAGO, IL (288)
HOUSTON, TX (206)
LOS ANGELES, CA (144)
BROOKLYN, NY (137)
PHOENIX, AZ (119)
PHILADELPHIA, PA (118)
NEW YORK, NY (112)
ORLANDO, FL (101)
SAN DIEGO, CA (100)
DALLAS, TX (98)