KNSD, virtual channel 39 (UHF digital channel 40), is an NBC owned-and-operated (O&O) television station located in San Diego, California, United States. The station is owned by the NBCUniversal Owned Television Stations subsidiary of NBCUniversal. KNSD maintains office and studio facilities located at Granite Ridge Drive in Kearny Mesa, and its transmitter is located southeast of Spring Valley. The station's on-air branding, NBC 7 San Diego, is derived from KNSD's cable channel position in the market on Spectrum, Cox Communications and AT&T U-verse.KNSD additionally hosts the area's O&O station for the NBCU-owned Spanish language network Telemundo, which is known on-air as Telemundo 20; as with KNSD's main branding, it is derived from its channel 20 cable position on the same providers mentioned above, and is carried over-the-air on channel 39.20 to reflect that positioning.