CREATE TABLE table_204_12 (id NUMBER, "area served" CLOB, "city of license" CLOB, "vc" NUMBER, "rf" NUMBER, "callsign" CLOB, "network" CLOB, "notes" CLOB)

which area has the largest number of stations serving it ?
SELECT "area served" FROM table_204_12 GROUP BY "area served" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "area served" FROM "table_204_12" GROUP BY "area served" ORDER BY COUNT(*) DESC FETCH FIRST 1 ROWS ONLY