You mentioned that this UK number keeps ringing your German mobile despite no known contacts, which often points to a generic scam call. Such unsolicited international numbers frequently aim to harvest personal data or push fraudulent services. Block the number on your handset and report it to your carrier; many providers can flag suspicious foreign callers. Avoid answering unknown international calls and never share personal details or click links if you do answer. Consider using a call‑blocking app that flags numbers with a history of abuse. If the calls persist, lodge a complaint with the UK Communications Regulator, Ofcom, for further investigation.
I've been receiving repeated calls from this UK number on my German mobile. I have no contacts in the UK with my number, so it appears to be a scam.
