Clear Channel Stations operate between 10,000 watts and 50,000 watts to provide unlimited time service to a very wide area. FCC Regulations protect their primary service area from interference by other stations.
| Frequency | Channel Type | Station | City of License | Stations nearest Washington-Baltimore | Washington Baltimore Comments |
| 640 khz | Clear 1-A | KFI | Los Angeles,CA | WLVJ - Royal Palm Beach, FL | 25 kw-D and just 4.5 watts at night. |
| 650 khz | Clear 1-A | WSM | Nashville, TN | none | * WSM is home of the Grand Ole Opry |
| 660 khz | Clear 1-A | WFAN | New York, NY | WCRR - Rural Retreat, VA | 550 watts daytime |
| 670 khz | Clear 1-A | WMAQ | Chicago, IL | none | |
| 680 khz | Clear 1-B | KNBR | San Francisco, CA | WCBM - Baltimore, MD | 10 kw-D and 5 kw-N |
| 700 khz | Clear 1-A | WLW | Cincinnati, OH | WWTL - Walkersville, MD | 5 kw-D |
| 710 khz | Clear 1-A | WOR | New York, NY | WFRN - Blacksburg, VA | 10 kw-D |
| KIRO | Seattle, WA | ||||
| 720 khz | Clear 1-A | WGN | Chicago, IL | none | |
| 730 khz | Clear 1-A (mexican) | WBZS - Alexandria, VA | 5 kw-D and just 20 watts at night | ||
| 740 khz | Clear 1-A (canadian) | CBL | Toronto, ON | none | |
| 750 khz | Clear 1-A | WSB | Atlanta, GA | WBMD - Baltimore, MD | 1,000 watts daytime |
| 760 khz | Clear 1-A | WJR | Detroit, MI | none | |
| 770 khz | Clear 1-A | WABC | New York, NY | none | |
| 780 khz | Clear 1-A | WBBM | Chicago, IL | WABS - Arlington, VA | 5 kw-D |
| 800 khz | Clear 1-A (mexican) | ||||
| 810 khz | Clear 1-B | KGO | San Francisco, CA | none | |
| WGY | Schenectady, NY | ||||
| 820 khz | Clear 1-A | WBAP | Fort Worth, TX | WQSI - Frederick, MD | 4.3 kw-D and 430 watts night, plus directional night pattern |
| 830 khz | Clear 1-A | WCCO | Minneapolis, MN | none | |
| 840 khz | Clear 1-A | WHAS | Louisville, KY | WKDI - Denton, MD | 1 kw-D |
| 850 khz | Clear 1-B (US & mexican) | KOA | Denver, CO | none | |
| 860 khz | Clear 1-A (canadian) | CJBC | Toronto, ON | WBGR - Baltimore, MD | 2.5 kw-D and just 66 watts at night |
| 870 khz | Clear 1-A | WWL | New Orleans, LA | none | |
| 880 khz | Clear 1-A | WCBS | New York, NY | none | |
| 890 khz | Clear 1-A | WLS | Chicago, IL | WFKJ - Cashtown, PA | 1 kw-D |
| 900 khz | Clear 1-A (mexican) | WILC - Laurel, MD | 1.9 kw-D and 500 watts night | ||
| 940 khz | Clear 1-B (canadian & mexican) | CBM | Montreal, PQ | none | |
| 990 khz | Clear 1-A (canadian) | CBW | Winnipeg, MB | WZZD - Philadelphia, PA | 50 kw-D & 10 kw-N |
| 1000 khz | Clear 1-B (US and mexican) | KOMO | Seattle, WA | WIOO - Carlisle, PA | 1 kw-D |
| WMVP | Chicago, IL | WKDE - Altavista, VA | 1 kw-D | ||
| 1010 khz | Clear 1-A (canadian) | CBR | Calgary, AB | WOLD - Baltimore, MD | 1 kw-D and 27 watts at night |
| 1020 khz | Clear 1-A | KDKA | Pittsburg, PA | none | *KDKA went on the air in 1920 |
| 1030 khz | Clear 1-A | WBZ | Boston, MA | WNTL - Indianhead, MD | 50 kw-D |
| 1040 khz | Clear 1-A | WHO | Des Moines, IA | ||
| 1050 khz | Clear 1-A (mexican) | WKDL - Silver Spring, MD | 1 kw-D and 43 watts at night | ||
| 1060 khz | Clear 1-B (US & mexican) | KYW | Philadelphia, PA | none | * KYW went on the air in 1921 |
| 1070 khz | Clear 1-B (US & canadian) | KNX | Los Angelos, CA | WKOK - Sunbury, PA | 10 kw-D and 1 kw-N |
| CBA | Moncton, NB | ||||
| 1080 khz | Clear 1-B | WTIC | Hartford, CT | WVKV - Hurricane, WV | 5 kw-D |
| KRLD | Dallas, TX | ||||
| 1090 khz | Clear 1-B (US & mexican) | KAAY | Little Rock, AR | WBAL went on the air in 1925 | |
| WBAL | Baltimore, MD | ||||
| 1100 khz | Clear 1-A | WWWE | Cleveland, OH | WGBA - Bethlehem, PA | 250 watts daytime |
| 1110 khz | Clear 1-B | WBT | Charlotte, NC | WNAP - Norristown, PA | 4.8 kw-D. They take a NAP at Night |
| 1120 khz | Clear 1-A | KMOX | St. Louis, MO | none | |
| 1130 khz | Clear 1-B (US & canadian) | KWKH | Shreveport, LA | none | |
| WBBR | New York, NY | ||||
| CKWX | Vancouver, BC | ||||
| 1140 khz | Clear 1-B (US & mexican) | WRVA | Richmond, VA | none | |
| 1160 khz | Clear 1-A | KSL | Salt Lake City, UT | WPVG - Funkstown, MD | Currently off the air |
| 1170 khz | Clear 1-B | KVOO | Tulsa, OK | WKPA - Lynchburg, VA | 3.5 kw-D |
| WWVA | Wheeling, WV | ||||
| 1180 khz | Clear 1-A | WHAM | Rochester, NY | none | |
| 1190 khz | Clear 1-B | WOWO | Fort Wayne, IN | WANN - Annapolis, MD | 10 kw-D |
| KEX | Portland, OR | ||||
| 1200 khz | Clear 1-A | WQAI | San Antonio, TX | WAGE - Leesburg, VA | 5 kw-D, 1 kw-N |
| 1210 khz | Clear 1-A | WGMP | Philadelphia, PA | none | |
| 1220 khz | Clear 1-A (mexican) | WFAX - Falls Curch, VA | 5 kw-D and 100 watts at night | ||
| 1500 khz | Clear 1-B | WTOP | Washington, DC | WTOP went on the air in 1926. Transmitter site is in Wheaton, MD | |
| KSTP | St. Paul, MN | ||||
| 1510 khz | Clear 1-B | WLAC | Nashville, TN | none | |
| KGA | Spokane, WA | ||||
| 1520 khz | Clear 1-B | WWKB | Buffalo, NY | WHRF - Bel Air, MD | 250 watts daytime only |
| KOMA | Oklahoma City, OK | ||||
| 1530 khz | Clear 1-B | KFBK | Sacramento, CA | WCTR - Chestertown, MD | 250 watts daytime only |
| WSAI | Cincinnati, OH | WVFC - McConnellsburg, PA | 1 kw-D, 250 watts | ||
| 1540 khz | Clear 1-B | KXEL | Waterloo, IA | WMDO - Wheaton, MD | 5 kw-D |
| 1550 khz | Clear 1-B (mexican & canadian) | CBE | Windsor, ON | WXVA - Charlestown, WV | 5 kw-D |
| 1560 khz | Clear 1-B (US & cuban) | KNZR | Bakersfield, CA | WKIK - La Plata, MD | 1 kw-D |
| WQEW | New York, NY | ||||
| 1570 khz | Clear 1-A (mexican) | WKDB - Towson, MD | 5 kw-D & 236 watts night | ||
| 1580 khz | Clear 1-A (canadian) | CBJ | Chicoutimi, PQ | WPGC - Morningside, MD | 50 kw-D & 250 w-N |
| 1660 | Extended AM Band | WJDM | Elizabeth, NJ | Seems to be the only station on channel. | |
