Frequencies used by Federal Government Agencies

Around the St. Louis Missouri Area

Compiled by Anthony W. Haukap


Computer Programmable Scanners:

    To download St. Louis frequency files specifically tailored for the various computer programmable scanning radios (AR8200 MK3, BC780xlt, BC245xlt, BC250d, Icom-R2, PRO-92, PRO-93, PRO-95, etc.) and related programming software packages click here.


More St. Louis Area Frequencies

    For additional St. Louis scanner radio frequencies used by Public Safety, Local & Federal Government Agencies, Businesses, Railroads, and Air Traffic Control see the Main Scanner Frequency Index.



You can find out more about professional and hobby scanning in the following books: (click on the title for additional information)


The Ultimate Scanner 3!
The Ultimate Scanner
by Bill Cheek		 Scanners & Secret Frequencies
Scanners & Secret Frequencies
by Henry L. Eisenson		 Scanner Modifications and Antennas
Scanner Modifications and Antennas
by Jerry Pickard		 ARRL Handbook for Radio Amateurs, 2002
ARRL Handbook for Radio Amateurs, 2002
by Dana George Reed (Editor)

Bug Book: Everything You Ever Wanted to Know About Electronic Eavesdropping ... But Were Afraid to Ask
Bug Book: Everything You Ever Wanted to Know About Electronic Eavesdropping ... But Were Afraid to Ask
by M. L. Shannon		 Radio Monitoring: The How to Guide
Radio Monitoring: The How to Guide
by T. J. Skip Arey		 Serious Surveillance for the Private Investigator
Serious Surveillance for the Private Investigator
by Bob Bruno		 Firehouse Magazine
Firehouse Magazine
12 issues/12 months



Go HomeSt. Louis Area FrequenciesGo Top

See also the Main Scanner Frequency Index for additional frequecnies used in the St. Louis area.

Government and Federal Frequencies



Federal Emergency Management Agency (FEMA) Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
FEMA-1U   5.2110 n/a USB   National Emergency Coordination Net (NECN)
FEMA-1L   5.2110 n/a LSB   National Emergency Coordination Net (NECN)
FEMA-2U   10.4930 n/a USB   National Emergency Coordination Net (NECN)
FEMA-2L   10.4930 n/a LSB   National Emergency Coordination Net (NECN)
FEMA-3U   14.5670 n/a USB   National Emergency Coordination Net (NECN)
FEMA-3L   14.5670 n/a LSB   National Emergency Coordination Net (NECN)
FEMA-4U   13.9560 n/a USB   National Emergency Coordination Net (NECN)
FEMA-4L   13.9560 n/a LSB   National Emergency Coordination Net (NECN)
FEMA   138.2250 n/a     Nationwide Prime  
FEMA   141.7250 n/a     Nationwide  
FEMA   139.5000 n/a        
FEMA   142.9250 n/a        
FEMA   139.4500 n/a        
FEMA   142.4000 n/a        
FEMA   142.9750 n/a        
FEMA   165.6625 n/a     National Warn 1  
FEMA   164.8625 n/a     National Warn 2  
FEMA   167.9750 n/a     EOC Net 1 & 2  
FEMA   169.8750 n/a     EOC Net 3  
FEMA   167.9250 n/a     EOC Net 4  
FEMA   143.0000 n/a     Emergency HTs  
FEMA   143.2250 n/a     Emergency HTs  
FEMA   166.2250 n/a 146.2   Nationwide  
FEMA   169.6000 n/a     Nationwide  
FEMA   165.5625 n/a     Search Tac 2  
FEMA   417.6625 n/a     Search Tac 3  
FEMA   413.2125 n/a     Search Tac 4  
FEMA   416.0375 n/a     Command 2  
FEMA   416.8125 n/a     Command 3  
FEMA   416.8375 n/a     Command 4  
FEMA   417.5875 n/a     Command 5  
FEMA   408.5125 n/a        
FEMA   409.4875 n/a        
FEMA   410.4875 n/a        
FEMA   410.5125 n/a        
FEMA   416.9375 n/a        


US Defense Department Intra-Squad Radio (ISR) Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
ISR 1 396.8750 n/a FM     500mW
ISR 2 397.1750 n/a FM     500mW
ISR 3 397.1750 n/a FM     500mW
ISR 4 397.3750 n/a FM     500mW
ISR 5 397.4250 n/a FM     500mW
ISR 6 397.4750 n/a FM     500mW
ISR 7 397.5500 n/a FM     500mW
ISR 8 397.9500 n/a FM     500mW
ISR 9 398.0500 n/a FM     500mW
ISR 10 399.4250 n/a FM     500mW
ISR 11 399.4750 n/a FM     500mW
ISR 12 399.7250 n/a FM     500mW
ISR 13 399.9250 n/a FM     500mW
ISR 14 399.9750 n/a FM     500mW


Bureau Of Alcohol, Tobacco & Firearms (BATF) Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
BATF1165.2875n/a100.0 PrimarySt. Louis
BATF4166.4625n/a100.0 Tactical 
BATF5165.9125n/a100.0 Tactical 
BATF6173.8875n/a100.0 Aid/Task Force 
BATF7168.0000n/a100.0 Tactical 
BATF 166.8500n/a  Surveilance 


Internal Revenue Service (IRS) Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
IRS CID1S/4R418.2250n/a123.0 Main 
IRS CID 418.1750n/a123.0 Tac 
IRS CID 418.2000n/a123.0 Aux 


U.S. Secret Service (USSS) Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
Secret Service1B165.7875n/a103.5   
Secret Service2C165.3750n/a103.5   
Secret Service3M165.2125n/a103.5   
Secret Service4T164.6500n/a103.5   
Secret Service5P164.4000n/a103.5   


Jefferson National Expansion Memorial (Arch) Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
The ArchF2172.5250n/a100.0 Security 
The ArchF3172.7750n/a131.8 Grounds 
The ArchF4168.3500n/a  Maintenance 
The ArchF5171.6250172.4750100.0 Maintenance 
The ArchF7173.6250n/a  Grounds 
The Arch 171.6350n/a  Grounds 


Corps of Engineers Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
Corps of Engineers 163.5375n/a    
Corps of Engineers 163.4350n/a203.5   
Corps of Engineers 163.4125n/a203.5   
Corps of Engineers 173.4125n/a    


U.S. Postal Service (USPS) Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
USPS 164.7000n/a156.7 Truck-Transport 
USPS 166.2250n/a  Main Post Office 
USPS 166.2500n/a  Main Post Office 
USPS 169.6000n/a  Main Post Office 
USPS 170.1750n/a  Truck-Transport 
USPS 408.0500n/a  Internl Ops. 
USPS 409.2750n/a120.0 Operations 
USPS 410.2000n/a110.9 Operations 
USPS 414.7250n/a136.5 Lambert Field Ops. 
USPS 418.3000n/a82.5 Security 
USPS1/2414.7500n/a82.5 Postal Inspectors 
USPS3/4415.0500n/a82.5 Postal Inspectors 
USPS5/6415.4500n/a82.5 Postal Inspectors 


Interagency Law Enforcement National Calling Channels
Interoperability Frequencies

Department Chan Frequency Tone Callsign Usage Notes
Output Input
VHF National CallingLE A167.0875(Simplex)167.9-Interagency - Initial ContactVHF Plan
VHF Operational ChannelLE 1167.0875162.0875167.9-InteragencyVHF Plan
VHF Operational ChannelLE 2167.2500162.2625167.9-InteragencyVHF Plan
VHF Operational ChannelLE 3167.7500162.8375167.9-InteragencyVHF Plan
VHF Operational ChannelLE 4168.1125163.2875167.9-InteragencyVHF Plan
VHF Operational ChannelLE 5168.4625163.4250167.9-InteragencyVHF Plan
VHF Operational ChannelLE 6167.2500(Simplex)167.9-InteragencyVHF Plan
VHF Operational ChannelLE 7167.7500(Simplex)167.9-InteragencyVHF Plan
VHF Operational ChannelLE 8168.1125(Simplex)167.9-InteragencyVHF Plan
VHF Operational ChannelLE 9168.4625(Simplex)167.9-InteragencyVHF Plan
UHF National CallingLE B414.0375(Simplex)167.9-Interagency - Initial ContactUHF Plan
UHF Operational ChannelLE 10409.9875418.9875167.9-InteragencyUHF Plan
UHF Operational ChannelLE 11410.1875419.1875167.9-InteragencyUHF Plan
UHF Operational ChannelLE 12410.6125419.6125167.9-InteragencyUHF Plan
UHF Operational ChannelLE 13414.0625(Simplex)167.9-InteragencyUHF Plan
UHF Operational ChannelLE 14414.3125(Simplex)167.9-InteragencyUHF Plan
UHF Operational ChannelLE 15414.3375(Simplex)167.9-InteragencyUHF Plan
UHF Operational ChannelLE 16409.9875(Simplex)167.9-InteragencyUHF Plan
UHF Operational ChannelLE 17410.1875(Simplex)167.9-InteragencyUHF Plan
UHF Operational ChannelLE 18410.6125(Simplex)167.9-InteragencyUHF Plan
  • Tone-Controlled Squelch Systems (CTCSS) and/or Network Access Code (NAC) $68F
  • The frequencies shown in this plan are available for assignment to all Government agencies to satisfy intermittent law enforcement and public safety incident response requirements. Non-Government agencies may use these frequencies only in cooperation with agencies of the Federal Government.

    Interagency Incident Response Frequencies

    Department Chan Frequency Tone Callsign Usage Notes
    Output Input
    VHF National CallingNC 1169.5375164.7125None-Interagency - Initial ContactVHF Plan
    VHF Operational ChannelIR 1170.0125165.2500(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 2170.4125165.9625(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 3170.6875166.5750(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 4173.0375167.3250(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 5169.5375(Simplex)(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 6170.0125(Simplex)(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 7170.4125(Simplex)(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 8170.6875(Simplex)(*)-InteragencyVHF Plan
    VHF Operational ChannelIR 9173.0375(Simplex)(*)-InteragencyVHF Plan
    UHF National CallingNC 2410.2375419.2375None-Interagency - Initial ContactUHF Plan
    UHF Operational ChannelIR 10410.4375419.4375(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 11410.6375419.6375(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 12410.8375419.8375(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 13413.1875(Simplex)(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 14413.2125(Simplex)(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 15410.2375(Simplex)(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 16410.4375(Simplex)(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 17410.6375(Simplex)(*)-InteragencyUHF Plan
    UHF Operational ChannelIR 18410.8375(Simplex)(*)-InteragencyUHF Plan
  • The frequencies shown in this plan are available for assignment to all Government agencies to satisfy intermittent law enforcement and public safety incident response requirements. Non-Government agencies may use these frequencies only in cooperation with agencies of the Federal Government.
  • (*) As required.

    Common Government Interagency Frequencies

    Department Chan Frequency Tone Callsign Usage Notes
    Output Input
    Government Agency 27.5750n/a  Interagency 
    Government Agency 27.5850n/a  Interagency 
    Government Agency 163.1000n/a  Interagency 
    Government Agency 418.0500n/a  Interagency 
    Government Agency 418.5750n/a  Interagency 
    Government Agency 408.4000n/a  Interagency 
    Government Agency 418.0750n/a  Interagency 


    PL-Tone/Government Agency

     CTCSS Tone  -  User/Federal Agency    CTCSS Tone  -  User/Federal Agency
     60.0   -   Smithsonian Institute
     67.0   -   [unknown]
     67.0   -   Veterans Administration
     67.0   -   U.S. Postal Service (USPS)
     71.9   -   Federal Aviation Administration (FAA)
     77.0   -   Department Of Energy (DOE)
     82.5   -   U.S. Postal Service (USPS)
     91.5   -   U.S. Postal Service (USPS)
     94.8   -   Bureau Of Land Management
     94.8   -   Department Of Energy (DOE-Nest Teams)
     97.4   -   U.S. Postal Service (USPS)
    100.0   -   Bureau Of Alcohol, Tobacco & Firearms (BATF)
    100.0   -   Bureau Of Indian Affairs
    100.0   -   Civil Air Patrol (CAP)
    100.0   -   Department Of Justice (DOJ)
    100.0   -   Immigration & Naturalization Service
    100.0   -   Internal Revenue Service (IRS)
    100.0   -   U.S. Customs
    100.0   -   U.S. Postal Service (USPS)
    103.5   -   Army Corps of Engineers
    103.5   -   Bureau Of Indian Affairs
    103.5   -   Central Intelligence Agency (CIA)
    103.5   -   Civil Air Patrol (CAP)
    103.5   -   Department Of Agriculture
    103.5   -   Federal Law Enforcement Training Center
    103.5   -   GSA Federal Supply Service
    103.5   -   National Highway Traffic Administration (NHTA)
    103.5   -   U.S. Marshals Service
    103.5   -   U.S. Park Police
    103.5   -   U.S. Postal Service (USPS)
    103.5   -   U.S. Secret Service (USSS)
    107.2   -   Civil Air Patrol (CAP)
    107.2   -   Defense Protection Service (DPS)
    107.2   -   Department Of Agriculture
    107.2   -   U.S. Capitol Police
    107.2   -   U.S. Postal Service (USPS)
    110.9   -   Civil Air Patrol (CAP)
    110.9   -   Department Of Geological Survey (DGS)
    110.9   -   U.S. Postal Service (USPS)
    114.8   -   Civil Air Patrol (CAP)
    114.8   -   Environmental Protection Agency (EPA)
    114.8   -   U.S. Postal Service (USPS)
    118.8   -   Civil Air Patrol (CAP)
    118.8   -   Federal Emergency Management Agency (FEMA)
    118.8   -   General Services Administration (GSA)
    118.8   -   U.S. Capitol Police
    123.0   -   Bureau Of Alcohol, Tobacco & Firearms (BATF)
    123.0   -   Bureau Of Indian Affairs
    123.0   -   Civil Air Patrol (CAP)
    123.0   -   Department Of Veterans Affairs
    123.0   -   Immigration & Naturalization Service
    123.0   -   Institute Of Standards & Technology
    123.0   -   Internal Revenue Service (IRS)
    123.0   -   IRS/DEA Shared Frequencies (Surveillance)
    123.0   -   U.S. Customs
    127.3   -   Agricultural Research Service
    127.3   -   Bureau Of Export Administration (BEA)
    127.3   -   Civil Air Patrol (CAP)
    127.3   -   Department Of Commerce (DoC)
    127.3   -   Department Of Energy (DoE)
    127.3   -   Department Of Veterans Affairs
    127.3   -   Federal Reserve Banking System
    127.3   -   General Services Administration (GSA)
    127.3   -   Immigration & Naturalization Service
    127.3   -   Nuclear Regulatory Commission (NRC)
    127.3   -   U.S. Air Force (USAF-ANG)
    127.3   -   U.S. Capitol Police
    127.3   -   U.S. Marshals Service
    127.3   -   U.S. Park Police
    127.3   -   U.S. Supreme Court
    		 131.8   -   Central Intelligence Agency (CIA)
    131.8   -   Civil Air Patrol (CAP)
    131.8   -   Federal Reserve Banking System
    131.8   -   Internal Revenue Service (IRS)
    131.8   -   Internal Revenue Service (IRS)
    131.8   -   Walter Reed AMC Security
    136.5   -   Federal Aviation Administration (FAA)
    136.5   -   U.S. Geological Survey (USGS)
    136.5   -   U.S. Marshals Service
    136.5   -   U.S. Postal Service (USPS)
    141.3   -   Civil Air Patrol (CAP)
    141.3   -   [unknown]
    141.3   -   U.S. Park Police
    146.2   -   Civil Air Patrol (CAP)
    146.2   -   Department Of Veterans Affairs
    146.2   -   Federal Aviation Administration (FAA)
    146.2   -   General Services Administration (GSA)
    146.2   -   U.S. Air Force (USAF-ANG)
    146.2   -   U.S. Capitol Police
    146.2   -   U.S. Fish & Wildlife
    146.2   -   U.S. Marshals Service
    146.2   -   U.S. Park Police
    150.0   -   U.S. Military
    151.4   -   Federal Law Enforcement Training Center
    151.4   -   Immigration & Naturalization Service
    151.4   -   U.S. Military
    151.4   -   U.S. Air Force (USAF-ANG)
    151.4   -   U.S. Department of State (Bureau Of Diplomatic Security)
    156.7   -   Central Intelligence Agency (CIA)
    156.7   -   Civil Air Patrol (CAP)
    156.7   -   Drug Enforcement Agency (DEA)
    156.7   -   Federal Aviation Administration (FAA)
    156.7   -   Federal Bureau Of Investigation (FBI)
    156.7   -   Federal Executive Board
    156.7   -   Internal Revenue Service (IRS)
    156.7   -   IRS/DEA Shared Frequencies (Surveillance)
    156.7   -   National Marine Fisheries
    156.7   -   U.S. Attorney
    156.7   -   U.S. Capitol Police
    156.7   -   U.S. Postal Service (USPS)
    167.9   -   Bureau Of Alcohol, Tobacco & Firearms (CATF)
    167.9   -   Organized Crime & Drug Enforcement Task Force (OCDETF)
    167.9   -   Bureau Of Indian Affairs
    167.9   -   Civil Air Patrol (CAP)
    167.9   -   Department Of Energy (DOE-Nuclear Material Security)
    167.9   -   Department Of Justice (DoJ)
    167.9   -   Federal Bureau Of Investigation (FBI)
    167.9   -   Federal Emergency Management Agency (FEMA)
    167.9   -   Health & Human Services
    167.9   -   Immigration & Naturalization Service
    167.9   -   U.S. Marshals Service
    173.8   -   Civil Air Patrol (CAP)
    173.8   -   Federal Communications Commission (FCC)
    183.2   -   U.S. Air Force (ANG)
    186.2   -   Civil Air Patrol (CAP)
    186.2   -   U.S. Marshals Service
    192.8   -   Bureau Of Alcohol, Tobacco & Firearms (BATF)
    192.8   -   Federal Communications Commission (FCC)
    192.8   -   U.S. Marshals Service
    203.5   -   U.S. Marshals Service
    206.5   -   Immigration & Naturalization Service
    206.5   -   National Security Agency (NSA)
    233.6   -   [unknown]
    241.8   -   [unknown]