Tello is one of the fastest-growing mobile providers in the USA.

Our parent company, KeepCalling, has extensive experience in the telecom industry and has been providing calling services to millions of customers since 2002.

So, we’re not a rookie after all! In 2016, in a partnership with a US nationwide network, we had the chance to expand from international calls to providing full wireless service under the new brand, Tello.com.

This pocket-friendly solution grew in a few years to hundreds of thousands of happy customers. Tello-tastic, right?

Tello headquarters is located in Sibiu, a flourishing Romanian town situated in the center of the country.

Tello's second office is located in Cochabamba, Bolivia, the third largest city in the country. This active business center situated in the central part of Bolivia is a progressive and an economically active city that perfectly suits Tello’s needs.

Tello’s third office is located in the heart of Atlanta’s Central Perimeter submarket, offering Tello the best business environment in a convenient location.