The mobile operator Tracfone isn’t exactly a household name, but it does have about 21 million customers in the US. Soon, those customers will fall under the Verizon umbrella, as Verizon just announced it is purchasing Tracfone from its owner America Movil. (Disclosure, Verizon is Engadget’s parent company.)

Tracfone has long operated as an MVNO in the US, leasing wireless spectrum from some of the biggest mobile carriers in the country, including Verizon, AT&T and T-Mobile. It also operates under a host of brands, including Straight Talk and Walmart Family Mobile, and it has a large retailer footprint of over 90,000 locations at stores like CVS, Target and Best Buy.