The wireless facilities installed on street light poles and wooden utility poles are primarily intended to serve customers of wireless service providers licensed by the FCC to operate in the State of California. Currently, within the City, Verizon, AT&T, T-Mobile, and Sprint are the dominant wireless service providers. Other companies may also install and own small cell facilities and lease them to the above-mentioned wireless providers. Some of these companies are Crown Castle, ExteNet Systems, and Mobilitie. All wireless services providers are authorized by the California Public Utilities Commission (CPUC) to install and operate facilities within the PROW.