The term "09" can refer to different things depending on the context:

• In Germany, the telephone area code prefix "09" designates a geographic region in the southern part of the country. This area code covers multiple local networks including cities like Nürnberg (Nuremberg), Bayreuth, and Deggendorf, among others. The "09" area code is subdivided into more specific codes such as 091 for Nürnberg and 092 for Bayreuth

• In the context of motorcycles, "MT-09" refers to a popular model by Yamaha. The Yamaha MT-09 is a hyper naked street motorcycle featuring an 847–890 cc liquid-cooled inline three-cylinder engine. It is known for its sharp handling, powerful engine, and advanced technology. The MT-09 has been in production since 2014 and continues to be updated, with the 2025 model featuring an 890cc engine and modern electronics

If you meant "09" as a standalone, it most commonly relates to the German telephone area code region or the Yamaha MT-09 motorcycle model, depending on whether the context is telecommunications or motorbikes.