Home›Berlin U-Bahn lines›U4🌐EnglishEnglishDeutschFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTürkçeРусскийفارسی한국어中文日本語EntityQ99708· pop 25· linked from 244 articlesU4Also known as Berlin U-Bahn Line 4, Line U4Berlin U-Bahn lineWikidata factsOfficial websitewww.bvg.de/de/verbindungen/linienuebersicht/u4Length2.9Show 6 more factsCommons categoryU-Bahnlinie U4 (Berlin)sRGB color hex tripletFFD900Commons galleryU4 (Berlin)date of official opening1910-00-00described at URLberlin.bahninfo.de/u4plan.htmlroute numberU4Sources (3)wikidata.orgAvailable in 24 languagesFrançaisDeutsch中文日本語РусскийPortuguêsItalianoCroatianCzechEstonianConnectionsBerlin RingbahnEntityBerlin U-BahnEntityCategoriesBerlin U-Bahn linesCommons link is on Wikidata