Porter County Regional Airport (IATA: VPZ, ICAO: KVPZ, FAA LID: VPZ) (formerly Porter County Municipal Airport) is a public use airport located one nautical mile (1.8 km) southeast of the central business district of Valparaiso, a city in Porter County, Indiana, United States. It is owned by the Porter County Municipal Airport Authority.

Based on that paragraph can we conclude that this sentence is true?
Porter County Regional Airport has many call signs.