While 800-369-5400 is Sprint's best toll-free number, there are 10 total ways to get in touch with them. Welcome. Access customer service online at Sprint.com. The next best way to talk to their customer support team, according to other Sprint customers, is by calling their 888-211-4727 phone number for their Customer Service department. Let us know a little bit about you so we can give you the best information possible. Messages sent outside those hours will be responded to on the next business day. Sprint Text Customer Service is only available to Sprint customers using their phone on the Sprint network. By submitting this form, you agree that Sprint or a Sprint Authorized Business Dealer may contact you about your request and that Sprint may also send you additional information about business solutions and other service and product promotions to, or based on, the email address provided. Current Customer? Just Browsing? Find help for your cell phone: Learn about your bill usage, how your plan works, and get helpful info about your account. Available every day from 6am – 10pm CT.