General Information about Area Code 331 | |
---|---|
Country | United States |
State / Province / Territory | Illinois |
Major City | Lombard |
Time Zone | Central (UTC-06:00) |
Prefix | Primary City | County | Phone Type |
---|---|---|---|
331-725 | Oswego | Kendall | Landline |
331-999 | Oswego | Kendall | Landline |
331-234 | Sugar Grove | Kane | Wireless |
331-321 | Dupage | Dupage | - |
331-214 | Downers Grove | Dupage | Wireless |
331-221 | Elmhurst | Dupage | Landline |
331-253 | Homer Glen | Will | Wireless |
331-645 | Elmhurst | Dupage | Wireless |
331-281 | Naperville | Dupage | Landline |
331-472 | Naperville | Dupage | Wireless |
331-200 | Hanover Park | Cook | Wireless |
331-777 | Downers Grove | Dupage | Landline |
331-481 | Downers Grove | Dupage | Wireless |
331-210 | Geneva | Kane | Landline |
331-228 | Geneva | Kane | Wireless |
331-684 | Aurora | Kane | Landline |
331-456 | Roselle | Dupage | Landline |
331-305 | Naperville | Dupage | Wireless |
331-702 | Naperville | Dupage | Landline |
331-251 | Downers Grove | Dupage | Wireless |