Please list the phone numbers of the schools with the top 3 SAT excellence rate.
Excellence rate = NumGE1500 / NumTstTakr
SELECT T1.Phone FROM schools AS T1 INNER JOIN satscores AS T2 ON T1.CDSCode = T2.cds ORDER BY CAST(T2.NumGE1500 AS REAL) / T2.NumTstTakr DESC LIMIT 3