What is attn meaning in letter?

ATTN is an abbreviation used in the header section of a letter or package to indicate the intended recipient or department. It stands for "attention" and is usually followed by a name or department. This ensures that the communication is directed to the appropriate person or group and is not lost or misrouted. ATTN is commonly used in business or official correspondence and can also be used in informal letters or packages. It is important to use correct and clear ATTN information to ensure that the letter or package is delivered to the intended recipient.