Federal (Harris County) Scanner Frequencies and Radio Frequency Reference

Federal (Harris County)

Last Updated: August 11, 2023, 8:30 pm

Frequencies

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Interoperability

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
170.725	RM	653 NAC	FedIntHouCmd	Houston Command (FBI Ch. L1)	P25e	Federal
171.4375	RM	653 NAC	FedIntHouPch	Houston Patch (FBI Ch. L2)	P25e	Federal
166.4625	M	CSQ	Fed Common A	Federal Common	FMN	Federal
166.4625	M	001 NAC	Fed Common D	Federal Common (FBI Ch. D3?)	P25e	Federal
167.0875	BM	167.9 PL	NTIA LE A	NTIA Law Enforcement A (Analog)	FMN	Federal
167.0875	M	68F NAC	NTIA LE A D	NTIA Law Enforcement A (Digital)	P25	Federal
167.750	RM	68F NAC	NTIA LE 3/7	NTIA Law Enforcement 3/7	P25e	Federal
168.4625	RM	68F NAC	NTIA LE 5/9	NTIA Law Enforcement 5/9	P25e	Federal
167.250	M	68F NAC	NTIA LE 6	NTIA Law Enforcement 6	P25	Federal
168.1125	M	68F NAC	NTIA LE 8	NTIA Law Enforcement 8	P25	Federal
170.4125	M	167.9 PL	NTIA IR 7	NTIA Incident Response 7	FMN	Federal
170.6875	M	167.9 PL	NTIA IR 8	NTIA Incident Response 8	FMN	Federal
173.0375	M	167.9 PL	NTIA IR 9	NTIA Incident Response 9 Interagency Convoy	FMN	Federal

Department of Defense

Army Corps of Engineers

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
163.4375		BM	100 NAC	ACE Add/Bark	Addicks and Barker Reservoirs	P25	Military

Civil Air Patrol

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
149.275	BM	141.3 PL	CAP Air 1 Analog	Air 1 Analog	FMN	Military
149.275	BM	585 NAC	CAP Air 1 Dig	Air 1 Digital	P25	Military
150.5625	BM	151.4 PL	CAP Air 2 Analog	Air 2 Analog	FMN	Military
150.5625	BM	5EA NAC	CAP Air 2 Dig	Air 2 Digital	P25	Military
148.125	RM	203.5 PL	CAP R63 Analog	Airborne/Portable Repeater Ch. R63 Analog	FMN	Military
148.1375	RM	203.5 PL	CAP R67 Analog	Airborne/Portable Repeater Ch. R67 Analog	FMN	Military
148.1375	RM	192.8 PL	CAP R68 Analog	Airborne/Portable Repeater Ch. R68 Analog	FMN	Military
148.1375	RM	131.8 PL	CAP R69 Analog	Airborne/Portable Repeater Ch. R69 Analog	FMN	Military
148.1375	RM	526 NAC	CAP R69 Digital	Airborne/Portable Repeater Ch. R69 Digital	P25	Military
148.125	RM	156.7 PL	CAP R09 Hou Ana	Ch. R09 Houston (Analog)	FMN	Military
148.125	RM	61F NAC	CAP R09 Hou Dig	Ch. R09 Houston (Digital)	P25	Military
141.575	BM	127.3 PL	CAP CC 1 A	Command and Control 1 Analog	FMN	Military
141.575	BM	4F9 NAC	CAP CC 1 D	Command and Control 1 Digital	P25	Military
141.000	BM	131.8 PL	CAP CC 2 A	Command and Control 2 Analog	FMN	Military
141.000	BM	526 NAC	CAP CC 2 D	Command and Control 2 Digital	P25	Military
150.225	BM	162.2 PL	CAP Guard1 A	Guard 1 Analog	FMN	Military
139.875	BM	173.8 PL	CAP Tac 1 A	Tactical 1 Analog	FMN	Military
139.875	BM	6CA NAC	CAP Tac 1 D	Tactical 1 Digital	P25	Military

National Guard

See Ellington International Airport for Texas Air National Guard and Texas Army National Guard frequencies.

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
150.7375		M	293 NAC	ANG Air Surveil	Aerial Surveillance	P25	Federal

North American Aerospace Defense Command (NORAD)

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
271.000	BM	CSQ	NORAD WADS	"Blue 15" Western Air Defense Sector ("Bigfoot")/Air-to-Air	AM	Military
247.050	M	CSQ	NORAD Boom	Aerial Refueling "Boom"	AM	Military
364.200	BM	CSQ	NORAD AICC	Air Intercept Control Common ("AICC")	AM	Military
225.050	M	CSQ	NORAD 225.05	Air-to-Air	AM	Military
282.600	M	CSQ	NORAD 282.6	Air-to-Air	AM	Military
335.950	M	CSQ	NORAD AWACS	Airborne Warning and Control System (AWACS)	AM	Military

White House Communications Agency

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
166.5125		BM	001 NAC	WHCA Sierra	"Sierra"	P25e	Federal
166.700		BM	001 NAC	WHCA Quebec	"Quebec"	P25e	Federal

Department of Homeland Security

Coast Guard

Also see Ellington International Airport and Port of Houston for additional Coast Guard frequencies.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
162.325	BM	293 NAC	CG111 Sta Hou	Ch. CG111 Station Houston	P25e	Federal
163.050	BM	293 NAC	CG112 Sta Hou	Ch. CG112 Station Houston Primary	P25e	Federal
165.3125	BM	293 NAC	CG121 Hou-Gal	Ch. CG121 Sector Houston-Galveston Primary	P25e	Federal
413.000	BM	293 NAC	CG410 Hou-Gal	Ch. CG410 Sector Houston-Galveston	P25e	Federal
413.025	BM	293 NAC	CG411 Hou-Gal	Ch. CG411 Sector Houston-Galveston Air Primary	P25e	Federal
157.100	BM	CSQ	USCG H-G 22A	US Coast Guard Sector Houston-Galveston (Marine Ch. 22A)	FM	Federal
157.150	BM	CSQ	USCG H-G 23A	US Coast Guard Sector Houston-Galveston (Marine Ch. 23A) - Helicopter and Auxiliary Operations	FM	Federal
157.175	BM	CSQ	USCG H-G 83A	US Coast Guard Sector Houston-Galveston (Marine Ch. 83A)	FM	Federal

Customs and Border Protection

Immigration and Customs Enforcement (ICE) is a major user of the CBP radio system. Other agencies such as Department of Agriculture, Environmental Protection Agency, Internal Revenue Service (IRS) Criminal Investigation and Railroad Retirement Board (RRB) Office of Inspector General use the CBP radio system. The Federal Protective Service also has access to the CBP radio system.

Also see Bush Intercontinental Airport, Hobby Airport, and Port of Houston for additional CBP frequencies.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
170.125	RM	100.0 PL	CBP Net 203	Net 203 Houston	FMN	Federal
170.125	RM	304 NAC	CBP D-Net 203	D-Net 203 Houston	P25e	Federal
136.375	BM	CSQ	CBP Longhorn	Office of Air and Marine - "Victor" Air-to-Air/Air-to-Base (Base is "Longhorn")	AM	Federal
350.025	BM	CSQ	CBP Blue 3	Office of Air and Marine - "Blue 3"/"Uniform" Air Interdiction (Base is "Hammer")	AM	Federal
168.8375	BM	293 NAC	CBP Air 1	Air 1 (Base is "Longhorn")	P25e	Federal
168.9625	M	293 NAC	CBP Air 2	Air 2	P25e	Federal
169.2625	M	293 NAC	CBP Air 3	Air 3	P25	Federal
169.1625	M	293 NAC	CBP Air 4	Air 4	P25	Federal
169.3875	M	293 NAC	CBP Air 5	Air 5	P25	Federal
166.8875	M	293 NAC	CBP Air 7	Air 7	P25e	Federal
166.7875	BM	293 NAC	CBP Air 8	Air 8 (Base is "Hammer")	P25	Federal
166.5875	M	293 NAC	CBP Surv 166.587	Surveillance	P25	Federal
168.0375	M	308 NAC	CBP Surv 168.037	Surveillance	P25e	Federal

Federal Protective Service

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
412.9625	M	201 NAC	FPS 2	Ch. 2	P25	Federal
413.9625	M	201 NAC	FPS 5 Tac	Ch. 5 Tactical	P25	Federal
408.200	RM	201 NAC	FPS Disp/Ops	Dispatch/Operations	P25E	Federal
413.475	M	201 NAC	FPS Talk 413.475	Talk-Around	P25	Federal
413.950	M	201 NAC	FPS Talk 201	Talk-Around	P25	Federal
413.950	M	293 NAC	FPS Talk 293	Talk-Around	P25	Federal

Immigration and Customs Enforcement

Also see Bush Intercontinental Airport for additional ICE frequencies.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
170.675	RM	051 NAC	ICE Houston 1	Houston 1 "HOU1" Surveillance (wide area simulcast)	P25e	Federal
168.825	RM	052 NAC	ICE Houston 2	Houston 2 "HOU2" Surveillance (Houston local)	P25e	Federal
165.8375	M	CSQ	ICE DHS Common	Department of Homeland Security Common - Surveillance	FMN	Federal
163.725	M	169 NAC	ICE Natl Direct	National Direct	P25e	Federal
163.700	M	169 NAC	ICE Nat Tac 1	National Tactical 1 Surveillance	P25e	Federal
168.5875	M	169 NAC	ICE Nat Tac 2	National Tactical 2 Surveillance	P25e	Federal
163.1125	M	169 NAC	ICE Nat Tac 3	National Tactical 3 Surveillance	P25e	Federal
164.7875	M	169 NAC	ICE Nat Tac 4	National Tactical 4 Surveillance	P25e	Federal
163.0125	M	CSQ	ICE 163.0125	Surveillance Wire	FMN	Federal
163.100	M	164 NAC	ICE 163.1	ICE	P25e	Federal
163.1125	M	164 NAC	ICE 163.1125	ICE	P25e	Federal
163.625	M	056 NAC	ICE 163.625	ICE	P25e	Federal
163.700	M	164 NAC	ICE 163.7	ICE	P25e	Federal
164.7375	M	164 NAC	ICE 164.7375	ICE	P25e	Federal
168.5875	M	164 NAC	ICE 168.5875	ICE	P25e	Federal
171.250	RM	069 NAC	ICE Ntnwd Rptr	Nationwide	P25e	Federal

Secret Service

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
165.7875	BM	001 NAC	USSS Baker	"Baker"	P25e	Federal
165.375	BM	001 NAC	USSS CmdPost	"Charlie" - Command Posts	P25e	Federal
166.400	M	002 NAC	USSS Golf002	"Golf"	P25e	Federal
166.400	M	003 NAC	USSS Golf003	"Golf"	P25e	Federal
166.400	M	004 NAC	USSS Golf004	"Golf"	P25e	Federal
166.400	M	007 NAC	USSS Golf007	"Golf"	P25e	Federal
165.2125	M	001 NAC	USSS Mike	"Mike"	P25e	Federal
164.8875	BM	001 NAC	USSS Oscar	"Oscar"	P25e	Federal
164.400	RM	001 NAC	USSS Papa/HFO	"Papa" - Houston Field Office Primary	P25e	Federal
164.650	BM	001 NAC	USSS Tango	"Tango"	P25e	Federal
167.0375	BM	001 NAC	USSS Pres Tac	Presidential Detail Tactical	P25e	Federal

Transportation Security Administration

See airport pages for frequencies used at airports.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
163.1125	M	272 NAC	TSA FAM 163.1125	Federal Air Marshal Service	P25e	Federal
170.7875	M	272 NAC	TSA FAM 170.7875	Federal Air Marshal Service	P25e	Federal
163.1125	M	496 NAC	TSA VIPR	Visible Intermodal Prevention and Response (VIPR)	P25e	Federal

Department of Justice

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
164.550		M	001 NAC	OCDETF	Organized Crime Drug Enforcement Task Force (FBI Ch. D2?)	P25e	Federal

Bureau of Alcohol, Tobacco, Firearms and Explosives

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
170.9625	RM	650 NAC	ATFE Net	Net Surveillance	P25e	Federal
167.1625	M	650 NAC	ATFE Tac 1	Tactical 1 Surveillance	P25e	Federal
173.0125	M	650 NAC	ATFE Tac 3	Tactical 3	P25e	Federal
168.350	M	650 NAC	ATFE Tac 4	Tactical 4	P25e	Federal
165.9125	M	650 NAC	ATFE Tac 5	Tactical 5 Surveillance	P25e	Federal
173.8875	M	650 NAC	ATFE Tac 6	Tactical 6	P25e	Federal

Bureau of Prisons

Federal Detention Center Houston
Motorola Type II

Jail operations.

Drug Enforcement Administration

Texas Wide Area Radio Network (TxWARN)
Project 25 Phase II

DEA has talkgroups on this system and sometimes conducts operations on them.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
411.125	BM	156 NAC	DEA 1 Simplx	Ch. 1 Surveillance "SPX 1"	P25e	Federal
412.200	M	156 NAC	DEA 2 Simplx	Ch. 2 Surveillance "SPX 2"	P25e	Federal
413.975	M	156 NAC	DEA 3 Simplx	Ch. 3 Surveillance "SPX 3"	P25e	Federal
414.200	M	156 NAC	DEA 4 Simplx	Ch. 4 Surveillance "SPX 4"	P25e	Federal
414.450	M	156 NAC	DEA 5 Simplx	Ch. 5 Surveillance "SPX 5"	P25e	Federal
409.675	RM	156 NAC	DEA 6 Hou S	Ch. 6 Houston South ("Pierce Junction") - Surveillance	P25e	Federal
409.8125	RM	156 NAC	DEA 7 LaPort	Ch. 7 Deer Park ("San Jacinto") - Surveillance	P25e	Federal
409.825	RM	156 NAC	DEA 8 Atasco	Ch. 8 Atascocita - Surveillance	P25e	Federal
409.900	RM	156 NAC	DEA 9 Hou W	Ch. 9 Houston West ("San Felipe") - Surveillance "RPT 9"	P25e	Federal
410.4125	RM	156 NAC	DEA 11 Hou N	Ch. 11 Houston North ("Crosstimbers") - Surveillance	P25e	Federal
136.275	BM	CSQ	DEA 136.275	Air-to-Air (also used by National Guard Counterdrug Program; also used by FBI)	AM	Federal
171.5875	BM	283 NAC	DEA Air	Air-to-Air/Air-to-Base ("Flint Base")	P25e	Federal

Federal Bureau of Investigation

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
167.6125		BM	167 NAC	FBI Hou A1	Houston Field Office Ch. A1 "Guard" Building Security	P25e	Federal
170.625		RM	167 NAC	FBI Hou A5	Houston Field Office Ch. A5 Surveillance	P25e	Federal
168.8875		RM	167 NAC	FBI Hou A6	Houston Field Office Ch. A6 "Mustang" Surveillance	P25e	Federal
167.7875	KKF925	RM	167 NAC	FBI HouA7Pri	Houston Field Office Ch. A7 "Chase" Primary	P25e	Federal
167.5625		M	167 NAC	FBIHouD4?Dig	Houston Field Office Ch. D4? Attorney General Detail	P25e	Federal
167.5625		M	167.9 PL	FBIHouD4 Ana	Houston Field Office Ch. D4 Surveillance	FMNe	Federal
167.5375		RM	167 NAC	FBI Hou D6?	Houston Field Office Ch. D6?/D5?	P25e	Federal
167.2375		M	167 NAC	FBI Hou H1	Houston Field Office Ch. H1 Surveillance	P25e	Federal
168.7625		M	167 NAC	FBI Hou H2	Houston Field Office Ch. H2 Surveillance	P25e	Federal
163.100		M	167 NAC	FBI Hou H3	Houston Field Office Ch. H3 Surveillance	P25e	Federal
173.100		RM	167 NAC	FBI HouH4SOG	Houston Field Office Ch. H4 Special Operations Group	P25e	Federal
166.7625		M	167 NAC	FBI Hou P3	Houston Field Office Ch. P3 Surveillance	P25E	Federal
168.4875		M	167 NAC	FBI Hou P5	Houston Field Office Ch. P5 Surveillance	P25E	Federal
170.1875		RM	167 NAC	FBI Mc Downtown	Houston Field Office Houston Area Multicast - Downtown Houston	P25e	Federal
170.375		RM	167 NAC	FBI Mc Katy	Houston Field Office Houston Area Multicast - Katy	P25e	Federal
171.175		RM	167 NAC	FBI Mc IAH	Houston Field Office Houston Area Multicast - Bush Intercontinental Airport	P25e	Federal
172.2875		RM	167 NAC	FBI Mc NRG	Houston Field Office Houston Area Multicast - NRG Stadium	P25e	Federal
170.8125		RM	167 NAC	FBI 170.8125	Houston Field Office Houston Area Multicast	P25e	Federal
170.8625		RM	167 NAC	FBI 170.8625	Houston Field Office Houston Area Multicast	P25e	Federal
170.9375		RM	167 NAC	FBI 170.9375	Houston Field Office Houston Area Multicast	P25e	Federal
171.6125		RM	167 NAC	FBI 171.6125	Houston Field Office Houston Area Multicast	P25e	Federal
171.6875		RM	167 NAC	FBI 171.6875	Houston Field Office Houston Area Multicast	P25e	Federal
171.975		RM	167 NAC	FBI 171.975	Houston Field Office Houston Area Multicast	P25e	Federal
172.2125		RM	167 NAC	FBI 172.2125	Houston Field Office Houston Area Multicast	P25e	Federal
162.7625		M	167 NAC	FBI 162.7625	Houston Field Office Houston Area Multicast - Input	P25e	Federal
163.1875		M	167 NAC	FBI 163.1875	Houston Field Office Houston Area Multicast - Input	P25e	Federal
163.8875		M	167 NAC	FBI 163.8875	Houston Field Office Houston Area Multicast - Input	P25e	Federal
163.9125		M	167 NAC	FBI 163.9125	Houston Field Office Houston Area Multicast - Input	P25e	Federal
163.9625		M	167 NAC	FBI 163.9625	Houston Field Office Houston Area Multicast - Input	P25e	Federal
163.9875		M	167 NAC	FBI 163.9875	Houston Field Office Houston Area Multicast - Input	P25e	Federal
169.6625		RM	167 NAC	FBI 169.6625	Houston Field Office Outlying Area Multicast	P25e	Federal
170.7375		RM	167 NAC	FBI 170.7375	Houston Field Office Outlying Area Multicast	P25e	Federal
170.9125		RM	167 NAC	FBI 170.9125	Houston Field Office Outlying Area Multicast	P25e	Federal
171.9875		RM	167 NAC	FBI 171.9875	Houston Field Office Outlying Area Multicast	P25e	Federal
172.1875		RM	167 NAC	FBI 172.1875	Houston Field Office Outlying Area Multicast	P25e	Federal
172.550		RM	167 NAC	FBI 172.55	Houston Field Office Outlying Area Multicast	P25e	Federal
173.0875		RM	167 NAC	FBI 173.0875	Houston Field Office Outlying Area Multicast	P25e	Federal
173.7875		RM	167 NAC	FBI 173.7875	Houston Field Office Outlying Area Multicast	P25e	Federal
162.875		M	167 NAC	FBI 162.875	Houston Field Office	P25e	Federal
166.9875		M	167 NAC	FBI 166.9875	Houston Field Office	P25e	Federal
167.2625		M	167 NAC	FBI 167.2625	Houston Field Office	P25e	Federal
167.2875		M	167 NAC	FBI 167.2875	Houston Field Office	P25e	Federal
167.3125		M	167 NAC	FBI 167.3125	Houston Field Office	P25e	Federal
167.3375		M	167 NAC	FBI 167.3375	Houston Field Office	P25e	Federal
167.3625		M	167 NAC	FBI 167.3625	Houston Field Office Surveillance	P25e	Federal
167.3875		M	167 NAC	FBI 167.3875	Houston Field Office	P25e	Federal
167.4125		M	167 NAC	FBI 167.4125	Houston Field Office	P25e	Federal
167.4375		M	167 NAC	FBI 167.4375	Houston Field Office Surveillance	P25e	Federal
167.4625		M	167 NAC	FBI 167.4625	Houston Field Office	P25e	Federal
167.4875		M	167 NAC	FBI 167.4875	Houston Field Office	P25e	Federal
167.5125		M	167 NAC	FBI 167.5125	Houston Field Office	P25e	Federal
167.5875		M	167 NAC	FBI 167.5875	Houston Field Office Surveillance	P25e	Federal
167.600		M	167 NAC	FBI 167.6	Houston Field Office	P25e	Federal
167.6375		M	167 NAC	FBI 167.6375	Houston Field Office	P25e	Federal
167.6625		M	167 NAC	FBI Hou 167.6625	Houston Field Office	P25e	Federal
167.7125		M	167 NAC	FBI 167.7125	Houston Field Office	P25e	Federal
167.7375		M	167 NAC	FBI 167.7375	Houston Field Office	P25e	Federal
167.7625		M	167 NAC	FBI 167.7625	Houston Field Office	P25e	Federal
168.2875		M	167 NAC	FBI 168.2875	Houston Field Office	P25e	Federal
168.975		M	167 NAC	FBI 168.975	Houston Field Office	P25e	Federal
168.9875		M	167 NAC	FBI 168.9875	Houston Field Office	P25e	Federal
170.000		M	167 NAC	FBI 170.0	Houston Field Office	P25e	Federal
170.825		M	167.9 PL	FBI 170.825	Houston Field Office Surveillance	FMN	Federal
170.8375		M	167 NAC	FBI 170.8375	Houston Field Office	P25e	Federal
170.875		M	167 NAC	FBI 170.875	Houston Field Office	P25e	Federal
170.925		M	167 NAC	FBI 170.925	Houston Field Office	P25e	Federal
172.050		M	167 NAC	FBI 172.05	Houston Field Office	P25e	Federal
172.300		M	167 NAC	FBI 172.3	Houston Field Office	P25e	Federal
173.025		M	167 NAC	FBI 173.025	Houston Field Office	P25e	Federal
173.450		RM	167 NAC	FBI 173.45	Houston Field Office	P25e	Federal
136.275		BM	CSQ	FBI Air 136	Air-to-Air/Air-to-Base ("Snake Base"/"Victor," also used by DEA)	AM	Federal

Marshals Service

The Marshals Service previously used the ICE "HOU1" channel as its primary ("Houston Command") in the past; but may be using TxWARN now.

Texas Wide Area Radio Network (TxWARN)
Project 25 Phase II

The Gulf Coast Violent Offenders and Fugitive Task Force operates on this system.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
165.075	M	293 NAC	USMS Crt 165.075	Bob Casey United States Courthouse - Security	P25e	Federal
170.750	RM	293 NAC	USMS Crt Sec	Bob Casey United States Courthouse - Security (Contract Guards)	P25e	Federal
170.800	M	293 NAC	USMS 170.8	Marshals	P25e	Federal
170.850	M	864 NAC	USMS B	Ch. B	P25e	Federal

Other Departments

Department of Agriculture

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
166.5625		M	192.8 PL	DOA WildlifeSvcs	Wildlife Services	FMN	Federal

Department of State

Texas Wide Area Radio Network (TxWARN)
Project 25 Phase II

DSS has access to talkgroups on this system, such as the interoperability talkgroups.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
409.525	RM	293 NAC	DSS Hou Pri	Diplomatic Security Service - Houston Field Office Ch. 1 Primary "VFO1"	P25e	Federal
409.7125	M	0F0 NAC	DOS Passport	Passport Agency Office	P25e	Federal
412.2875	M	293 NAC	DSS Hou 2	Diplomatic Security Service - Houston Field Office Ch. 2 "VFO2"	P25e	Federal
413.8375	M	0F0 NAC	DSS 413.8375	Diplomatic Security Service	P25	Federal

Department of the Interior

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
166.375		M	94.8 PL	BSEE Helicopters	Bureau of Safety and Environmental Enforcement - Helicopters	FMN	Federal

Department of the Treasury

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
164.5375		RM	1F1 NAC	TIGTA Rptr	Treasury Inspector General for Tax Administration	P25e	Federal
165.100		M	1F1 NAC	TIGTA Simplx	Treasury Inspector General for Tax Administration	P25e	Federal

Department of the Treasury - Internal Revenue Service

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
165.950	M	100 NAC	IRS 165.95 S	Criminal Investigation	P25e	Federal
165.950	RM	006 NAC	IRS CI North	Criminal Investigation - North Houston	P25e	Federal
163.2125	M	100 NAC	IRS CI Tac 1	Criminal Investigation - Tactical 1	P25e	Federal
163.6375	M	100 NAC	IRS CI Tac 2	Criminal Investigation - Tactical 2	P25e	Federal

Department of Veterans Affairs

Michael DeBakey Veterans Affairs Medical Center
Project 25 Phase I

Police and maintenance operations are on this system.

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
414.400	B	293 NAC	VA Clinics	Clinics (patched with DeBakey VAMC trunked system)	P25	Federal
168.525	B		VAMC Paging	DeBakey Veterans Affairs Medical Center - Paging	Telm	Data
172.6875	RM	023 DPL	VA Cemetery	Houston National Cemetery	FMN	Federal

Federal Aviation Administration

Also see Bush Intercontinental Airport for additional FAA frequencies.

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
172.175		M	136.5 PL	FAA Tech Car	Radio Technicians - Car-to-Car	FMN	Federal

Federal Reserve Bank of Dallas

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
406.6625		RM	293 NAC	FRBHouPolice	Houston Branch - Police	P25	Federal
410.4875		RM	293 NAC	FRBHou Maint	Houston Branch - Maintenance	P25	Federal

National Aeronautics and Space Administration

Also see Ellington International Airport for additional NASA frequencies.

Texas Wide Area Radio Network (TxWARN) Project 25 Phase II	Security has a talkgroup on this system.
Johnson Space Center Motorola Type II SmartZone	This system is reported to be using encryption on all talkgroups.

Frequency	License	Type	Tone	Alpha Tag	Description	Mode	Tag
171.150		B	CSQ	JSC ShtleAud	Johnson Space Center - Space Shuttle/Mission Control Audio	FM	Federal

Postal Service

Frequency	Type	Tone	Alpha Tag	Description	Mode	Tag
407.3375	RM	CC 1 TG 3 SL 1	NHP&DC Maint	North Houston Processing and Distribution Center - Maintenance	DMR	Federal
406.1375	RM	CC 1 TG 1 SL 1	NHP&DC Ops	North Houston Processing and Distribution Center - Operations	DMR	Federal
414.750	M	483 NAC	PIS Able	Postal Inspection Service - Able?	P25E	Federal
414.750	M	482 NAC	PIS Base	Postal Inspection Service - Base?	P25E	Federal
409.9375	RM	482 NAC	PIS Black	Postal Inspection Service - Black?	P25E	Federal
407.725	RM	482 NAC	PIS Houston	Postal Inspection Service - Houston Operations	P25e	Federal
407.1375	RM	482 NAC	PIS NLECC	Postal Inspection Service - National Law Enforcement Control Center (NLECC) Dispatch	P25e	Federal
406.3375	RM	482 NAC	PIS Red	Postal Inspection Service - Red?	P25E	Federal
415.050	M	293 NAC	PIS Tactical	Postal Inspection Service - Tactical?	P25E	Federal