Twigby customers have access to two of the largest nationwide networks covering over 270 million people. Twigby primarily operates on the Sprint network for talk, text and data. Twigby customers must live within adequate Sprint coverage. However, if a customer ever finds themselves outside Sprint coverage, customers can also use the Verizon network for talk and text. If you are outside of Sprint coverage, this switch-over will happen automatically and requires no action on your part.