From 1966 and 1967 AJCs:
WPLO 590 Country
WSB 750 Popular (NBC)
WQXI 790 Top 40
WERD 860 R&B/Jazz
WGST 920 Popular (ABC)
WIIN 970 Popular
WGUN 1010 Country (Mutual)
WBIE 1080 Standards (CBS)
WGKA 1190 Classical
WFOM 1230 Top 40
WTJH 1260 Country
WOMN 1310 Popular
WIGO 1340 R&B
WAOK 1380 R&B
WAVO 1430 Religious
WYZE 1480 Town & Country
WYNX 1550 Town & Country
WAIA 1570 Country (became Top 40 WBAD in 1967)
WABE 90.1 Educational
WGKA 92.9 Classical
WKXI 94.1 Finance
WAVO 94.9 Religious
WKLS 96.1 Standards (Stereo)
WSB 98.5 Popular (Stereo)
WLTA 99.7 Standards (Stereo)
WBIE 101.5 Standards
WPLO 103.3 Popular
By my reckoning, only 6 AM stations and 2 FM stations have the same call letters today. Not counting call letter moves, like WPLO, WGKA, or WGST.
WPLO 590 Country
WSB 750 Popular (NBC)
WQXI 790 Top 40
WERD 860 R&B/Jazz
WGST 920 Popular (ABC)
WIIN 970 Popular
WGUN 1010 Country (Mutual)
WBIE 1080 Standards (CBS)
WGKA 1190 Classical
WFOM 1230 Top 40
WTJH 1260 Country
WOMN 1310 Popular
WIGO 1340 R&B
WAOK 1380 R&B
WAVO 1430 Religious
WYZE 1480 Town & Country
WYNX 1550 Town & Country
WAIA 1570 Country (became Top 40 WBAD in 1967)
WABE 90.1 Educational
WGKA 92.9 Classical
WKXI 94.1 Finance
WAVO 94.9 Religious
WKLS 96.1 Standards (Stereo)
WSB 98.5 Popular (Stereo)
WLTA 99.7 Standards (Stereo)
WBIE 101.5 Standards
WPLO 103.3 Popular
By my reckoning, only 6 AM stations and 2 FM stations have the same call letters today. Not counting call letter moves, like WPLO, WGKA, or WGST.