Easy to get. Sprint.com and log in. Click on the Change Plan Addons tab to bring it up. You really won't be changing anything this is just to see your addons and it won't bring up a new page just that javascript box with the addon information in it.
When you scroll your mouse over any of those links a long URL comes up. Just right click on the link and 'Copy Shortcut.' Now paste into Notepad or anything that will accept the long string of text. What you're looking for is the ?'sku=XXXXXXXX&selectedMdn=.' For example:
https://manage.sprintpcs.com/Manage/...0&selectedMdn=
That XXXXXXX or PDSEBIZ30 in the example is the code for that particular service. Sometimes there can be spaces or other then alpha-numberic but usually not. Copy out those codes and what they correspond to and paste them here or to a PM if you don't want to paste them here.