Naval Air Station North Island or NAS North Island  is located at the north end of the peninsula on and is the home port of several of the . It is part of the largest in the — (NBC) in .

The Commanding Officer of NAS North Island (a.k.a. NASNI) is also the Commanding Officer, (NBC). As such, he commands or administers NASNI and seven other Naval facilities: (NABC); ; ; Remote Training Site, Warner Springs; ; ; and . NBC, with only its commands in the metropolitan San Diego Area, brackets the city of from the entrance to San Diego Bay to the . NAS North Island itself is host to 23 aviation and 80 additional tenant commands and activities, one of which, the Fleet Readiness Center Southwest, is the largest aerospace employer in San Diego.