Currently, on the Sprint side, they outsource bout 92% and in-house 8%. Prior to the merger, T-Mobile outsourced bout 46% and then 56% in-house, presently T-Mobile is at ~65% outsourced, that number is projected to swell to at least 75% by Q2 of 2022 and 85% by 2023 in 2024 90%-93%.
There are very real talks going on right now for closing the top 4 worst performing call center sites to expedite company revenue goals and moving those jobs to iQOR and Alorica.
If you want to keep your job, I highly recommend you start being vocal about how outsourcing is actually hurting the company.