NIFOG interop channels and where official fire and EMS channel plans live.
The nationwide NIFOG interoperability channels, explained in plain language, plus a state-by-state guide to where official fire and EMS channel plans are published. No county or agency frequencies are stated here.
Browse by State
Pick a state for links to the nationwide NIFOG interop channels and guidance on where to find that state's official fire and EMS channel plans.
Midwest
Northeast
South
West
What you'll find inside
Find Routing is a quiet, no-nonsense directory built for people who already know how to use a scanner — volunteer firefighters monitoring neighboring jurisdictions, EMS dispatchers staying current on adjacent county plans, journalists covering wildfires and structure fires, ham operators tracking interop traffic during disasters, and residents who simply want to know what's happening when they hear sirens roll past.
The nationwide NIFOG channels — VFIRE21–26, VMED28–33, VTAC11–14, VCALL10, the UHF UTAC and UMED set, and the 700/800 MHz interop ladder — are documented once and linked from every state page, because those channels are the same continent-wide.
Each state page then points you to where that state's own fire and EMS agencies publish their frequency plans, since this site does not state county or agency frequencies itself.