Nationwide

• Ardis Network: 855.8375

Australia

• Adelaide Police: 868.7625

California

• Fontana Police: 859.2375
• Huntington Beach Police: 856.2625
• Morgan Hill Police: Input: 465.1375, Output: 460.1375 and Input: 813.2625, Output: 858.2625
• Mountain View Police: Input: 822.4375, Output: 867.4375
• Orange County Fire Authority: 855.7125 (OCFA MDT Page)
• Palo Alto Police: Input: 823.2375, Output: 868.2375
• Redlands Police: 857.2625
• Riverside Police: 855.9625
• Riverside Public Utilities: 866.0750
• San Bernardino Sheriff: 868.6625, 868.8875, 868.9125
• San Jose Fire: Input: 813.4625, Output: 858.4625
• San Jose Police: Input: 812.7125, Output: 857.7125, Input: 813.9375, Output: 858.9375, Input: 822.6375, Output: 867.6375, and Input: 823.6000, Output: 868.6000
• Santa Clara: Input: 821.2625, Output: 866.2625
• Sunnyvale Police: Input: 822.8875, Output: 867.8875

Canada

• Bell Canada, Montreal: 859.5125
• Vancouver: 859.5125

Denmark

• Denmark Fire Department: 81.2MHz

Florida

• Fort Lauderdale Police: 470.6875
• Orlando: 855.8375

Georgia

• DeKalb County Public Safety: 854.2625, 855.7125, 857.2625
• Gwinnett County Public Safety: 851.7625, 852.6375, 852.8375

Indiana

• Hammond Police: 868.1875
• Indianapolis Police, Marion County Sheriff, Lawrence Police and Speedway Police: 859.2125, 860.2125, 860.4375, 866.1875, 866.6875, 866.8125, 866.7875, 867.7000.
  Indianapolis "A" terminals use 860.2125, "B" terminals use 860.4375, and "C" terminals use 866.8125.
• Tippecanoe County Sheriff: 856.7375
• N & S Railroad: 855.8875

Illinois

• Arlington Heights/NW Central Dispatch: 858.7125
• Gurnee Police: 859.4375
• People's Gas: 861.4375
• Schaumburg Police: 857.9625, 859.2125
• State of Illinois ALERTS MDT system: 857.7375
• State of Illinois Police: 859.4625

Maryland

• Baltimore County: 853.0125, 853.5875, 853.5875, 853.4125, 854.5625, and 853.0375
• BGE: 852.3375 and 852.8875

Massachusetts

• Boston Police: 853.5625

Michigan

• Consumers Power in Detroit Metro Area: 853.6375
• Eaton County (Lansing) Police: 851.4375
• Grand Rapids Police: 854.9625
• Kalamazoo Police: 851.6875
• Kent County Sheriff: 851.1625

New Jersey

• Bergen County PD: 867.6375
• Howell Twnsp: 866.1125
• NJ State Police: 867.3125
• South Brunswick: 501.0625
• Union County PD/Sheriff: 460.450

New York

• Flushing, New York City: 854.9625
• Nassau County, Long Island: 483.8625, 484.1125, 484.3625, 484.6125, 484.8625
• New York: 855.2155
• Rockland County Police: 860.7250

Ohio

• Dayton: 860.7125

Oklahoma

• Oklahoma City Police: 854.9625

South Dakota

• Sioux Falls: 854.9625

Texas

• Austin: 855.2375
• Austin EMS: 855.2675
• Austin Police: 855.9625
• Arlington: 451.100, 460.300
• Duncanville: 866.625
• Dallas Public Safety (RD-LAP): 854.8625, 855.1625, 855.4375, 855.6125, 855.6625, 855.6875, 855.7125, 855.9375
• Farmers Branch: 854.9625
• Ft. Worth (2400 baud Unid): 856.4375, 856.4625, 858.4375, 860.4375
• Grand Prairie: 482.9125
• Bedford, Colleyville, Euless, Grapevine, Haltom City, Hurst, North Richland Hills, Richland Hills, Southlake, TCSO: 868.8750
• Richardson (Unid): 853.4875
• Plano: 854.5875
• Frequencies for the DFW area also available here.

Virginia

• Falls Church, taxi-cab service: 853.2875, 854.2375
• Norfolk: 855.2125
• Roanoke City EOC: 854.9625
• Also in Roanoke:
  • Federal Express in Roanoke: 857.8625
  • Norfolk Southern (MDC4800??-partial copy): 855.4125
• Virginia Beach: 851.8625, 851.8875 and 853.9625

Washington

• Seattle area, public safety system: 852.7125

Wisconsin

• Milwaukee Police (RD-LAP): 858.2125
• Milwaukee County (RD-LAP): 856.7375
• Racine (RD-LAP): 857.2625
• Rock County Police: 852.6125
• Sheboygan Police: 453.9250
• Washington County (RD-LAP): 859.2625
• Waukesha County Police: 858.2625
• Winnebago County Police: 855.7125