You can view the call history from previous billing cycles, by following these steps:
1. Go to sprint.com and sign into your account.
2. Click on View my Bill.
3. Click on Call/Texts Log
4. Choose desired Bill Period to view.
5. Select either Voice or Text.
6. Click the + next to the name or PTN that you want to see the usage details for.
If you need to see more detail than what is displayed, there is a "Load 50 More" link at the bottom to get more details. Repeat until your 90 day limit is displayed.
You can either click to Print this page, View/Save PDF Bill (which will be your bill with the details), or, you can select to Download the what is on the screen as a document and their details will automatically be dropped into a spreadsheet.