Investors can consult the customer service staff of the corresponding fund company and ask about the inquiry method. General customer service staff can inquire. Length of fund account number: divided into 10 digits and 12 digits. 12 is a remote account, generally under self-built TA and Deng Zhong TA. The first two digits are generally the TA number, and the third digit is the type of individual or institution. 10 is the site account number. Specific to the fund company's query results shall prevail.