Which zip code in Massachusetts that have more than 1 area code?
"Massachusetts" is the state; zip code more than 1 area code refers to Count (zip_code) > 1
SELECT T1.zip_code FROM area_code AS T1 INNER JOIN zip_data AS T2 ON T1.zip_code = T2.zip_code WHERE T2.state = 'MA' GROUP BY T1.zip_code HAVING COUNT(T1.area_code) > 1