CREATE TABLE table_27588823_2 (callsign VARCHAR2, location VARCHAR2)

How many call signs does the location masinloc, zambales have?
SELECT COUNT(callsign) FROM table_27588823_2 WHERE location = "Masinloc, Zambales"
SELECT COUNT("callsign") FROM "table_27588823_2" WHERE "Masinloc, Zambales" = "location"