6620 de costa avenue 2nd floor avenue new yor

It looks like you're trying to provide an address!

6620 de Costa Avenue, 2nd Floor, Avenue, New York

Here's a breakdown of the address:

• Street Number: 6620
• Street Name: de Costa Avenue
• Apartment Number: 2nd Floor
• City: Avenue (Note: Avenue is not a typical city name, so I'm assuming this might be a typo or a mistake. New York City is a common city name, so I'll assume that's what you meant.)
• State: New York (assuming, since you mentioned "New York")

If you meant to provide an address in New York City, the correct format would be:

6620 de Costa Avenue, 2nd Floor, Brooklyn, NY 11234 (or another borough, such as Manhattan, Queens, etc.)

Please let me know if this is correct or if I should make any changes!