Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_90 ( class VARCHAR, call_sign VARCHAR )

### Question ###
what is the class of w269ax

### Accurate SQL ###

SELECT class FROM table_name_90 WHERE call_sign = "w269ax"