A ubiquitously expressed heterodimeric receptor that is specific for both interferon-alpha and interferon-beta. It is composed of two subunits referred to as IFNAR1 and IFNAR2. The IFNAR2 subunit is believed to serve as the ligand-binding chain; however both chains are required for signal transduction. The interferon alpha-beta receptor signals through the action of janus kinases such as the tyk2 kinase.