A toll-free number is a special type of phone number that allows callers to reach a business or organization without incurring any charges. Instead of the caller paying for the call, the business pays for the call costs. These numbers typically start with prefixes like 800, 888, 877, or 866, making them easy to recognize. Toll-free numbers are commonly used by companies for customer service, support, or sales inquiries. They provide a convenient way for customers to contact businesses without worrying about long-distance fees, encouraging more people to reach out for assistance or information.