WESX made its debut on December 10, 1939, at 1200 kHz on the AM band, with studios in Salem, Massachusetts; the transmitter was in Marblehead. The station’s original owner was Charles W. Phelan, who had been the director of sales for the Yankee Network in Boston from 1928 to early 1939.

WESX 1230 AM is a station that focuses on Latino/Brazilian programing. Covering the local communities of Lynn Massachusetts and its sourrounding cities.