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|"Is this all real? Or has this been happening inside my head?"
The subject of this article is of a real-life person, place, group, company, product, or creative work that has been mentioned "in-universe" in a canon source. The Harry Potter Wiki is written from the perspective that all information presented in canon is true (e.g., Hogwarts really exists), and, as such, details contained in this article may differ from real world facts.
BT Group plc (BT), formerly known as British Telecommunications plc (British Telecom), is a British telecommunications network based in London, England. The Post Office Tower is owned by British Telecom.
- The Wizarding World of Harry Potter (Mentioned only)