Where is NYSE listed?

Excuse me, could you please clarify for me where exactly the New York Stock Exchange, or NYSE, is listed? I understand that it's a major stock exchange in the United States, but I'm unsure of the specific listing details. Is it listed on another exchange, or is it a self-regulated organization? And if it is listed, could you provide me with the ticker symbol or any other relevant information that would help me to locate it on financial market platforms? Thank you for your assistance.