STi Mobile is no longer in service. Its operator filed for bankruptcy in 2012 and the service was gone by early 2013. Here is what that means for an STi Mobile number.
Account Number
There is no STi Mobile account number to retrieve. A Kentucky PSC letter records STi Prepaid LLC filing Chapter 11 on September 5 2012 in the Southern District of New York, with six affiliates petitioning at the same time. Customers reported support going dead in early 2013.
Transfer PIN
STi Mobile no longer issues transfer PINs. Neither of its domains returns a reachable page, and no successor carrier took over the base.
STi Mobile Contact Info
STi Mobile stopped operating in 2013 after its operator filed for bankruptcy. There is no customer service line to call.
What network does STi Mobile use?
STi Mobile has not published a host network, and no reliable current source states one. The single source that names one names the Sprint network, which was retired in 2022. We do not guess.
STi Mobile Porting Instructions
There is nothing to port out of. STi Mobile stopped operating in 2013, so no account, account number or transfer PIN exists to move a number away from.
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Your number and your rights
Number portability is a federal right, not a carrier policy. It applies only while a line is active — once service ends and the number is released, there is nothing left to transfer.

If you are setting up a new line
STi Mobile is gone, so there is no transfer to make. If you are choosing a carrier now, start from the network that covers your address rather than the brand on the bill.
Questions about STi Mobile
Can I still port my number out of STi Mobile?
No. The service was gone by early 2013 after its operator filed for bankruptcy, so there is no active account to transfer from.
What happened to STi Mobile?
A Kentucky PSC letter records STi Prepaid LLC filing Chapter 11 on September 5 2012 in the Southern District of New York, case 12-13811, with six affiliates petitioning simultaneously. Customers reported support unreachable by early 2013.
Who holds my old STi Mobile number now?
If you moved the line to another carrier before the service ended, that carrier holds it. If the line went dark, the number was released and is no longer yours to move.
Which network did STi Mobile use?
We have not recorded one. The only source naming a host names the Sprint network, retired in 2022, so there is nothing current to record. We do not guess.
Cite this page
STi Mobile stopped selling service, so these details are historical rather than current. There is no carrier left to confirm them with.
Best Cellular. “STi Mobile Account Number & PIN: Accurate 2026,” BestCellular.com. https://bestcellular.com/sti-mobile/
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