The old Japanese National Railways (JNR) requisitioned a private company Iiyama Railways by the war time acquisition and made it into the Iiyam Line; at that time JNR made the three stations that had the 'Shinshu' in front of the station name into 'Shinano' like Shinano Asano Station; it is said that the National Railways tended to avoid the station name with 'Shinshu' in front of the station name.
旧国鉄では飯山鉄道を戦時買収により接収して飯山線とした際に信濃浅野駅など「信州」を冠する3駅をすべて「信濃」に改称させるなど「〜州」の名称を忌避する傾向が強いとされる。