800-877-4646

this is a number used in collections by sprint and springleaf financial unclear as to the connection.  There have been some claims this is a a ploy by springleaf to collect using a number claiming to be sprint.

It is probably a 3rd party call center that operates for multiple businesses

I did not receive a call from this # but I did receive a notice to call this number to make payment to avoid cancellation of a non-existent Sprint account.  I have been receiving bills for about 5 months now.  Each time I receive a bill from "Sprint", I call Sprint customer service and they can not locate the account number listed nor the name listed on the statement.  

Glad I googled this number because I just received a bill for $6.05 and I don't have a Sprint account!

Did not receive a call but did receive a bill. Never had an account in this name, cannot get anyone to answer the phone when I called (steady please hold message), and customer service at the "real" Sprint number that I use for my real account cannot locate the customer number on the bill. New scam I suppose.