While the traditional icebox, which relied on large blocks of ice for cooling, has largely been replaced by modern refrigerators in most parts of the world, there are still situations where a form of "ice box" might be used:
Off-Grid Living: People living in remote areas without electricity may still use iceboxes or propane-powered refrigerators.
Coolers: Portable coolers used for camping, picnicking, or other outdoor activities are essentially iceboxes. They use ice or ice packs to keep food and beverages cold.
Power Outages: In cases of prolonged power outages, an icebox (or a cooler acting as one) could be used as a temporary solution to keep perishable food items cold.
Historic or Aesthetic Reasons: Some people might use an icebox in a historical reenactment context, or because they appreciate the aesthetic of an old-fashioned kitchen.
Developing Regions: In some developing areas where access to electricity is limited or unreliable, people might still use iceboxes or similar solutions.
Commercial Use: In some commercial settings, large ice boxes might be used to store and display perishable goods, such as seafood in a market.
That said, the use of iceboxes is not common in many parts of the world, as the convenience, efficiency, and affordability of modern refrigerators have made them a standard appliance in most homes and businesses.