: Former Sprint customers who kept their original devices; these phones were "bought" by T-Mobile as part of the subscriber base acquisition.
: People buying used or refurbished legacy Sprint devices on secondary markets like eBay or Swappa because they are often cheaper than T-Mobile-branded equivalents. who buys sprint phones
: Many are rebranded or refurbished for use on Boost Mobile or Tello, which still utilize parts of the old infrastructure or wholesale agreements. : Former Sprint customers who kept their original