Management believes analysts and investors use Adjusted EBITDA as a supplemental measure to evaluate
overall operating performance and facilitate comparisons with other wireless communications companies
because it is indicative of T - Mobile's ongoing operating performance and trends by excluding the impact of interest expense from financing, non-cash depreciation and amortization from capital investments, non-cash stock - based
compensation, network decommissioning costs as they are not indicative of T - Mobile's ongoing operating performance and certain other nonrecurring income and expenses.