Despite recent attacks by T-Mobile USA, claiming Dish Network is just hoarding its spectrum and should forfeit it, Dish itself claims it is on target to hit its first build-out deadline of March 7 2020. The pay-TV company has a rich patchwork of spectrum in different bands, but some of this carries ‘use it or lose it’ deadlines set by the FCC. To meet those, Dish said last year that it would initially roll out a national NB-IoT low power WAN, which would be transitioned, in phase two, to a 5G NR Standalone network. “The deployment team is in full swing,” Erik Carlson, Dish’s CEO, said on the company’s earnings call last week. “Crews are working at staging and installing…