991 Area Code Information
State: IL
Largest City in Area: CHICAGO
Where is Area Code 991? Area code (991) is in the state of IL. The PeopleSearchNow database has 3,129 records on file with a phone number in the area code of (991). Below, are the major cities in the area code (991).
Area Codes Starting with 9
Major Cities in 991
- CHICAGO, IL (115)
- HOUSTON, TX (89)
- LOS ANGELES, CA (52)
- SAINT LOUIS, MO (52)
- DETROIT, MI (51)
- CINCINNATI, OH (50)
- DALLAS, TX (50)
- FORT WORTH, TX (42)
- SAN DIEGO, CA (37)
- LAS VEGAS, NV (36)
Zip Codes in 991
- 31313
- 48219
- 48223
- 48227
- 48228
- 60409
- 60440
- 60618
- 60620
- 60628
- 63136
- 63376
- 79936
- 93306
- 93308
- 93309
- 93534
- 93535
- 93550
- 93551