After third-ranking US wireless carrier Sprint having revealed in a recent announcement that it is withdrawing its plans to acquire smaller rival T-Mobile, barbed comments at Sprint are being made by T-Mobile, especially by the company's CEO and President John Legere.

Legere, who has is already using Twitter to constantly entice customers to switch from Sprint to T-Mobile, recently said in a press release that - following the news of Sprint's withdrawal of the T-Mobile acquisition bid - the latest "good news" for T-Mobile is that it is close to beating Sprint to become the No. 1 carrier in the prepaid wireless market.

Legere also said: "As a matter of fact, I'm going on record -- I predict we'll overtake Sprint in total customers by the end of this year. Not someday. Not next year. This year. Americans are voting with their feet, and they're joining this Un-carrier revolution by the millions."

Although Sprint - with is nearly 55 million total subscribers- is a bigger rival of T-Mobile which has almost 50 million subscribers, Sprint still faces an uphill task when it comes to offering substantial competition to T-Mobile.

Sprint's customer-base has been dwindling in recent times, thanks to an increasing number of customers shifting to other providers. Moreover, Sprint does not have the deep pockets to fiercely compete against the main competitors - Verizon and AT&T.