T-Mobile US is abolishing overages for all its customers on T-Mobile consumer plans. More than 20 million Americans were hit with punitive overage charges in 2013. And these penalties from the three largest U.S. carriers take more than an incredible $1 billion out of consumers' pockets every year.

"Today I'm laying down a challenge to AT&T, Verizon and Sprint to join T-Mobile in ending these outrageous overage penalties for all consumers - because it's the right thing to do," said John Legere, president and CEO of T-Mobile. "Overage fees are flat out wrong. Agree with me? Join me in putting this challenge to all the major national carriers by signing my petition on Change.org. Right here. Take one minute to be a part of this consumer movement."

Last year, T-Mobile banished annual service contracts and began phasing out overage charges with the launch of Simple Choice.

"Charging overage fees is a greedy, predatory practice that needs to go," continued Legere. "Starting in May for bills arriving in June - regardless of whether you're on Simple Choice, Simple Starter or an older plan, we're abolishing overages for good. Period."

To give a voice to U.S. wireless consumers, Legere has started an online petition at Change.org/AbolishOverages calling on AT&T, Verizon and Sprint to end overages.