The steps for viewing phone records vary according to each mobile provider. Most companies, such as T-Mobile and Sprint, require members to sign into their account, and select the billing or usage summary option from the main menu.
To view phone usage history on T-Mobile.com, log in to your My T-Mobile account. If you need to create an account, register a new account by clicking the Register button at the top. After logging in, click the Usage link in the top menu, and then select the line for which you want to view the records, which is located under Summary By User. From the Usage details page, select either Voice or Messaging, depending on the type of record you want to view. To download the records, click the Download link.
To view phone records on Sprint.com, sign in to your Sprint account, and select My Sprint from the navigation links within the gray box, and then click See Bill. From the Monthly Statement page to the right, click See Bill History, and choose a billing date to access call details for a specific time frame. The website allows customers to download call records in PDF format as long as the selected billing cycle is at least 90 days old.