Dish Network may grab most of the headlines these days, for its attempt to shake up the US telecoms market with its 5G Open RAN roll-out, but much of the real disruption over the past decade has come from T-Mobile USA. CEO Mike Sievert celebrated 10 years of the operator’s ‘Uncarrier’ marketing strategy in a blog last week, and behind some hyperbole, these 20-plus initiatives have indeed forced a rethink about how consumers access and pay for connectivity and content in the USA. A decade ago, TMO was the fourth largest MNO and mainly focused on prepaid and low-ARPU consumers, with a very conservative approach to its networks. Now, having acquired Sprint, with its goldmine of midband spectrum, and initiated a stream…