Sprint's toll free customer service number is 1-888-788-4727. Customers with PCS may dial *2 to reach a customer service representative. Customer service may also be contacted via e-mail and chat.
There are also toll free numbers for specific purposes:
For account questions: 800-927-2199
For residential and small business wireline services: 800-877-4646
To place a Sprint FonCard call: 800-366-2255
For large business and global wireline services: 877-877-8748
To refresh Sprint Prepaid Card: 800-366-0707
When writing to Sprint, customers should be ready to provide the following information: customer name, telephone number, account number and PIN (if the account holder has one available). There are help topics on the Sprint website that customers can access for general questions.