In late April, T-Mobile (TMUS) and Sprint (S) announced plans to merger and T-Mobile CEO John Legere is confident the deal will receive approval from antitrust regulators, according to TheStreet's founder and Action Alerts PLUS Portfolio Manager Jim Cramer.

T-Mobile added more new customers in its most recent quarter than rivals Verizon (VZ) and AT&T (T) combined. 

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