Anya's experiment number is 007.
Anya Forger's Origins as a Test Subject
Before she became the adoptive daughter of Loid and Yor Forger, Anya was known by a different designation during her early life. Her unique telepathic abilities emerged through a period of intense experimentation. During this time, she was identified and referred to as Test Subject 007. This numerical designation was her primary identity within the facility where these experiments took place.
Her incredible powers, which allow her to read minds, developed during her time as Test Subject 007. It was only after she managed to escape from the experimentation facility and fled that she began a new life and adopted the name "Anya," shedding her past identity as a mere test subject. This designation is a key part of her mysterious backstory, highlighting the circumstances under which her extraordinary abilities were awakened.