Verizon FiOS would only be available if Verizon Core (Ma Bell) was the RBOC for the town. If Verizon is not the RBOC, then the power converter & backup battery unit came from some other location. In places where Verizon installed FiOS, but, subsequently exited, the new provider would continue providing the service under a different name.
Verizon Core is trying to get away from wireline communications. The company has been installing 5G OTA equipment in test markets as a way to deliver fiber based services without having to hang fiber drops or trench the ground to lay conduit along property lines.