Schools that are numbered, which are mainly public high schools (some private schools also), including the period of middle schools in each municipality under the old system, are sometimes locally called 'the number school of XX.'
各自治体での旧制中学時代もふくんだおもに公立高校を中心（一部では私立高校でも）に、数字のふされた学校をローカルに「○○のナンバースクール」などとよぶことがある。