Home›Milan metro lines›밀라노 지하철 4호선🌐한국어EnglishDeutschFrançaisItalianoNederlandsРусский한국어中文日本語EntityQ943476· pop 10· linked from 127 articles밀라노 지하철 4호선Also known as linea M4, linea 4, M4, linea blumetro line in MilanWikidata factsOfficial websitewww.metro4milano.itLength15.2Show 4 more factsCommons categoryLine M4 (Milan metro)route numberM4sRGB color hex triplet1F3E6Ddate of official opening2022-11-26Sources (2)wikidata.orgmilanotoday.itvia Wikidata · CC0Available in 10 languagesFrançaisDeutsch中文日本語РусскийItalianoLombardNederlands한국어via Wikidata sitelinks · CC0ConnectionsMilanCityMilan suburban railway serviceEntityCategoriesMilan metro linesRailway lines opened in 2022