Tello is a flexible telecom provider operating on the U.S. market. We offer a clean, upfront service with no fees whatsoever. Our monthly plans are customizable, as our customers can choose their preferred amount of minutes and data, and all include unlimited text. What’s more, our plans can be upgraded, downgraded, or renewed at any time, for no charge at all. Some perks of the service include free tethering: Tello customers can share data free of charge with other devices, and unlimited throttled data once the 4G data allotment is used up. But where we really stand out is our Customer Support: when our customers need help, they reach a real human being 100% of the time, no waiting on the line or speaking to robots. Tello.com is a brand of KeepCalling, a global telecommunications company registered in 2002 in USA. Presently, KeepCalling provides its services to hundreds of thousands of consumers and businesses, with a focus on customer satisfaction. KeepCalling has been listed by Inc 5000 as one of the fastest growing companies in the USA for 5 consecutive years. In 2015 the company registered a revenue increase of over 200% from 2011 to 2014.