H2O Wireless
is a United States-based prepaid cell phone service, that utilizes the AT&T network. It is a brand of the mobile virtual network operator Locus Telecommunications, a subsidiary of Telrite Holdings, Inc., since 2019. Locus was formerly a subsidiary of KDDI America corporation, starting in 2010. is primarily advertised as a non-restrictive phone service for customers to bring or buy unlocked smartphones, although AT&T contract/locked phones may be accepted as well.