Nationwide Fire & EMS Interop Channels

The channels listed here are the nationwide fire-service, EMS, and public-safety interoperability channels published in the National Interoperability Field Operations Guide (NIFOG). They're licensed for use everywhere in the United States and form the canonical interop bank that every fire department, EMS agency, and dispatch center should have programmed into its radios. Each channel name links to a detail page explaining how it's used, the mode and tone, and which states have it on file in our directory.

Channels are grouped by frequency band: VHF (the historic fire-service band centered around 154 MHz), UHF (453–470 MHz, used for hospital-EMS and increasingly for tactical interop), 700 MHz (P25 digital interop opened up in the post-DTV transition), and 800 MHz (the legacy public-safety mutual aid block).

VHF

Channel	Frequency	Type	Tone / NAC	Mode
VFIRE21 Nationwide VHF fire mutual aid calling channel.	154.2800 MHz	Fire	156.7	Analog FM
VFIRE22 VHF fire mutual aid working channel 1.	154.2650 MHz	Fire	156.7	Analog FM
VFIRE23 VHF fire mutual aid working channel 2.	154.2950 MHz	Fire	156.7	Analog FM
VFIRE24 VHF fire mutual aid working channel 3.	154.2725 MHz	Fire	156.7	Analog FM
VFIRE25 VHF fire mutual aid working channel 4.	154.2875 MHz	Fire	156.7	Analog FM
VFIRE26 VHF fire mutual aid working channel 5.	154.3025 MHz	Fire	156.7	Analog FM
VMED28 Nationwide VHF EMS calling/coordination channel (formerly EMS-1).	155.3400 MHz	EMS	156.7	Analog FM
VMED29 VHF EMS interop tactical channel.	155.3475 MHz	EMS	156.7	Analog FM
VMED30 VHF EMS interop tactical channel.	155.2050 MHz	EMS	156.7	Analog FM
VMED31 VHF EMS interop tactical channel.	155.2200 MHz	EMS	156.7	Analog FM
VMED32 VHF EMS interop tactical channel.	155.2350 MHz	EMS	156.7	Analog FM
VMED33 VHF EMS interop tactical channel.	155.3175 MHz	EMS	156.7	Analog FM
VCALL10 Nationwide VHF public safety calling channel.	155.7525 MHz	Interop	CSQ	Analog FM
VTAC11 VHF tactical public safety interop channel 1.	151.1375 MHz	Interop	156.7	Analog FM
VTAC12 VHF tactical public safety interop channel 2.	154.4525 MHz	Interop	156.7	Analog FM
VTAC13 VHF tactical public safety interop channel 3.	158.7375 MHz	Interop	156.7	Analog FM
VTAC14 VHF tactical public safety interop channel 4.	159.4725 MHz	Interop	156.7	Analog FM

UHF

Channel	Frequency	Type	Tone / NAC	Mode
UCALL40 Nationwide UHF public safety calling channel.	453.2125 MHz	Interop	156.7	Analog FM
UTAC41 UHF public safety interop tactical channel 1.	453.4625 MHz	Interop	156.7	Analog FM
UTAC42 UHF public safety interop tactical channel 2.	453.7625 MHz	Interop	156.7	Analog FM
UTAC43 UHF public safety interop tactical channel 3.	453.8625 MHz	Interop	156.7	Analog FM
UMED38 UHF EMS-to-hospital channel (legacy MED-1 base).	463.0000 MHz	EMS	156.7	Analog FM
UMED39 UHF EMS-to-hospital channel (legacy MED-2 base).	463.0250 MHz	EMS	156.7	Analog FM
UMED40 UHF EMS-to-hospital channel (legacy MED-3 base).	463.0500 MHz	EMS	156.7	Analog FM
UMED41 UHF EMS-to-hospital channel (legacy MED-4 base).	463.0750 MHz	EMS	156.7	Analog FM

700 MHz

Channel	Frequency	Type	Tone / NAC	Mode
7CALL50 700 MHz nationwide public safety calling channel.	769.2438 MHz	Interop	NAC 293	P25 Phase 1
7TAC51 700 MHz public safety interop tactical channel 1.	769.7438 MHz	Interop	NAC 293	P25 Phase 1
7TAC52 700 MHz public safety interop tactical channel 2.	770.2438 MHz	Interop	NAC 293	P25 Phase 1

800 MHz

Channel	Frequency	Type	Tone / NAC	Mode
8CALL90 800 MHz nationwide public safety mutual aid calling channel.	851.0125 MHz	Interop	156.7	Analog FM
8TAC91 800 MHz mutual aid tactical channel 1.	851.5125 MHz	Interop	156.7	Analog FM
8TAC92 800 MHz mutual aid tactical channel 2.	852.0125 MHz	Interop	156.7	Analog FM
8TAC93 800 MHz mutual aid tactical channel 3.	852.5125 MHz	Interop	156.7	Analog FM
8TAC94 800 MHz mutual aid tactical channel 4.	853.0125 MHz	Interop	156.7	Analog FM