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_42143 ( "Call sign" text, "Frequency MHz" real, "City of license" text, "ERP W" real, "Class" text, "FCC info" text )

### Question ###
For the call sign w242at what's the city the license plate is registered to?

### Accurate SQL ###

SELECT "City of license" FROM table_42143 WHERE "Call sign" = 'w242at'