T-Mobile and Sprint finally agreed to become one after years of negotiations.

The combined company will take on the name T-Mobile.

T-Mobile CEO John Legere is heading the merger and said on a conference call Sunday that the company plans to deliver “the highest capacity network in US history.”

This merger combines the third and fourth largest wireless service providers in the nation. Sprint was valued at $26 billion while T-Mobile was last valued at $55 billion.