Customs and Border Protection

Customs and Border Protection is part of the Department of Homeland Security. Its primary law enforcement role focuses on ports of entry and border protection. CBP includes the former U.S. Border Patrol, much of the former U.S. Customs Service, the former Animal and Plant Health Inspection Service (U.S. Department of Agriculture), and the some of the former U.S. Immigration and Naturalization Service ("INS"). Immigration and Customs Enforcement (ICE) took the investigative roles of the former U.S. Customs Service and INS.

The COTHEN Network - This page lists each of the frequencies in use for the HF CBP Over-the-Horizon Enforcement Network. Also listed here are additional resources and information regarding the COTHEN Network.
It has been found that CBP (CBP / BP / ICE) use many NAC's - Most Common are 001, 301 and 325, others can be found at Federal NAC Codes

CBP Nets

The Link above CBP Nets is a work in progress, for confirmed information relative to CBP Nets across the Country.
Please submit your confirmed regional information TO THE ABOVE LINK

"Air" Channels

168.8375  293 NAC  Air 1
168.9625  293 NAC  Air 2 
169.2625  293 NAC  Air 3 
169.1625  293 NAC  Air 4
169.3875  293 NAC  Air 5
163.4500  360 NAC  Air 6 (Also reported with 293 NAC)
166.8875  293 NAC  Air 7
166.7875  293 NAC  Air 8
163.4750  293 NAC  Air 9
164.9750  293 NAC  Air 10
169.4125  293 NAC  Air 11
166.7000  293 NAC  Air 12
165.5375  293 NAC  Air 13
166.5875  293 NAC  Air 14
166.7375  293 NAC  Air 15
168.0875  293 NAC  Air 16

CBP Office of Air and Marine

Identifier Codes

Alpha	ICE Homeland Security Investigations (HSI)
Bravo	Border Patrol
Charlie	Communications Division
Charlie-100	NLECC Orlando, FL (nationwide communications center)
Charlie Golf	US Coast Guard
Charlie Golf Alpha	? (running a license plate with Charlie-100 on Net-1 in Houston)
Charlie X-Ray	NOAA NMF
Delta	CBP Field Operations
Delta Oscar Lima	Department of Labor Office of Inspector General?
Foxtrot Papa Sierra	Federal Protective Service
Golf	ICE Enforcement and Removal Operations (ERO)
India	CBP Field Operations
Kilo	K-9 Enforcement
Liberty	National Guard helicopters in Texas
Lima	Aviation Personnel
Mike	Marine Operations
November Golf	National Guard helicopters in Texas
Omaha	Aircraft (Retired 2021)
Papa	IRS CID (self-identified on Net-1 in Houston)
Quebec	?
Romeo	CBP Field Offices
Romeo Romeo Bravo	Railroad Retirement Board Office of Inspector General? (heard on CBP Nets in Houston)
Sierra	Internal Affairs
Tango	ICE Task Force
Troy	Aircraft (Began 2021)
Whiskey	Bureau of Alcohol, Tobacco, Firearms and Explosives?
X-Ray	Air Support
Zulu	Special assignments

Border Patrol Unit IDs

Bravo XX	Border Patrol Search Tracking & Rescue Agents (BORSTAR)
Romeo	Rapid Response Team (in use Rio Grande City)
Whiskey Hotel	Wackenhut Contract Guards (in use near El Paso)
X-Ray	Border Patrol Agents (in use in San Antonio)
Zulu XX	Border Patrol Tactical Agents (BORTAC)

Vehicle Identifier Codes

Charlie	Any 2 wheel drive 2 door sedan
Echo	Any 2 wheel drive 4 door sedan
Foxtrot	Any station wagon
Hotel	Any 2 door 4 wheel drive SUV
Juliet	Any 2 wheel drive pickup truck
Kilo	Any 4 wheel drive pickup truck
Mike	Any 4 door 4 wheel drive SUV
Papa	Any 18 passenger or less van
Uniform	Any large passenger bus
Victor	ATV UTV
Zulu	Dune Buggy , Towed equipment or trailer
Mike-Romeo	Mobile Radio Portable Unit (X-Ray Vehicles)

Sector IDs?

1st digit = Sector [Users are now using the STATE Name vs the Sector #, however you will still find some ole' timers]
					
1 Boston			
2 NYC				
3 Baltimore 			
4 Miami 			
5 New Orleans 			
6 Houston			
7 Los Angeles 			
8 Chicago			
M Boat
N Aircraft
R Special Enforcement
S Internal Affairs
T Tactical Enforcement
W BATF
X Joint Task Force

State Data

New York

Buffalo base = "680"  KAD680
Buffalo cars = 418,419,421

Thanks to NF2G.com for the NY data and sector codes