Example embodiments of the present invention provide systems, method, and apparatuses for selecting a network access provider (NAP). In one embodiment, a worldwide interoperability for microwave access (WiMAX) femtocell access point (WFAP) sends an NAP request message to a network service provider (NSP). The WFAP receives an NAP response message returned by the NSP, where the NAP response message carries NAP information determined by the NSP. Thereafter, the WFAP can establish a connection with the NAP according to the received NAP information. In other words, independently of the macro network, the WFAP can determine the NAP providing a radio resource for the WFAP and provide radio access service for users of multiple NSP.