921 Area Code Information
State: IL
Largest City in Area: CHICAGO
Where is Area Code 921? Area code (921) is in the state of IL. Below, are the major cities in the area code (921).
Major Cities in 921
- CHICAGO, IL (1,447)
- HOUSTON, TX (1,246)
- LOS ANGELES, CA (870)
- BROOKLYN, NY (826)
- PHOENIX, AZ (795)
- PHILADELPHIA, PA (748)
- DALLAS, TX (740)
- LAS VEGAS, NV (737)
- ATLANTA, GA (730)
- NEW YORK, NY (728)
Zip Codes in 921