This is a list of all North American clear channel AM stations(excluding Canada).

540  XEWA San Luis Potosi SL,MX 150kW 1-A
640  KFI Los Angeles CA 50kW ND 1-A
650  WSM Nashville TN 50kW ND 1-A
660  WFAN New York NY 50kW ND 1-A
670  WMAQ Chicago IL 50kW ND 1-A
680  KNBR San Francisco CA 50kW ND 1-A
690  XETRA Tijuana BN,MX ?kW DA-? 1-B
700  WLW Cincinnati OH 50kW ND 1-A
710  KIRO Seattle WA 50kW DA-N 1-B
710  WOR New York NY 50kW DA-1 1-B
720  WGN Chicago IL 50kW ND 1-A
730  XEX Mexico City DF 100kW ND 1-A
750  WSB Atlanta GA 50kW ND 1-A
760  WJR Detroit MI 50kW ND 1-A
770  WABC New York NY 50kW ND 1-A
780  WBBM Chicago IL 50kW ND 1-A
800  XEROK Cd. Juarez CH,MX 150kW ND 1-A
810  KGO San Francisco CA 50kW DA-1 1-B
810  WGY Schenectady NY 50kW ND 1-A
820  WBAP Fort Worth TX 50kW ND 1-A
830  WCCO Minneapolis MN 50kW ND 1-A
840  WHAS Louisville KY 50kW ND 1-A
850  KOA Denver CO 50kW ND 1-A
850  XETQ Orizaba VC,MX ?kW DA-N 1-B
870  WWL New Orleans LA 50kW DA-1 1-A
880  WCBS New York NY 50kW ND 1-A
890  WLS Chicago IL 50kW ND 1-A
900  XEW Mexico City DF 250kW ND 1-A
940  XEQ Mexico City DF 
1000 KOMO Seattle WA 50kW DA-N 1-B
1000 WMVP Chicago IL 50kW DA-2 1-B
1000 XEOY Mexico City DF ?kW 1-B
1020 KDKA Pittsburgh PA 50kW ND 1-A
1030 WBZ Boston MA 50kW DA-1 1-A
1040 WHO Des Moines 50kW ND 1-A
1050 XEG Monterrey NL,MX 150kW ND 1-A
1060 KYW Philadelphia PA 50kW DA-1 1-B
1060 XEEP Mexico City DF ?kW DA-N
1070 KNX Los Angeles CA 50kW ND 1-A
1080 KRLD Dallas TX 50kW DA-N 1-B
1080 WTIC Hartford CT 50kW 1-B
1090 KAAY Little Rock AR 50kW DA-N 1-B
1090 WBAL Baltimore MD 50kW DA-N 1-B
1090 XEPRS Rosarito BN,MX 50kW DA-N 1-B
1100 WTAM Cleveland OH 50kW ND 1-A
1110 KFAB Omaha NE 50kW DA-N 1-B
1110 WBT Charlotte NC 50kW DA-N 1-B
1120 KMOX St.Louis MO 50kW ND 1-A
1130 KWKH Shreveport 50kW DA-N
1130 WBBR New York NY 50kW DA-N
1140 WRVA Richmond VA 50kW DA-1 1-B
1140 XEMR Monterrey NL,MX ?kW DA-N
1160 KSL Salt Lake City UT 50kW ND 1-A
1170 KFAQ Tulsa OK 50kW DA-N 1-B
1170 WWVA Wheeling WV 50kW DA-2 1-B
1180 WHAM Rochester NY 50kW ND 1-A
1190 KEX Portland OR 50kW DA-N 1-B
1190 WOWO Fort Wayne 50kW DA-N 1-B [no longer a class A.]
1190 XEWK Guadalajara JA,MX ?kW 1-B
1200 WOAI San Antonio TX 50kW ND 1-A
1210 WPHT Philadelphia PA 50kW ND 1-A
1220 XEB Mexico City DF 100kW ND 1-A
1500 KSTP St.Paul MN 50kW DA-N 1-B
1500 WTOP Washington DC 50kW DA-2 1-B
1510 KGA Spokane WA 50kW DA-N 1-B
1510 WLAC Nashville TN 50kW DA-N 1-B
1520 KOMA Oklahoma City OK 50kW DA-N 1-B
1520 WWKB Buffalo NY DA-1 1-B
1530 KFBK Sacramento CA 50kW DA-2 1-B
1530 WSAI Cincinnati OH 50kW DA-N
1540 KXEL Waterloo IA 50kW DA-N
1550 XERUV Jalapa VC 10kW ND 1-B
1560 KNZR Bakersfield CA 10kW DA-1
1560 WQEW New York NY 50kW DA-2
1570 XERF Cd. Acuna CI,MX 250kW ND 1-A