About FireWave

FireWave Frequencies is an independent, free-to-use directory of fire-service and EMS radio frequencies in the United States. It exists for one reason: there isn't a calm, well-organized public catalog of which channels fire and EMS units actually run on, broken down the way most people actually look — by state and then by county. The database sites that do exist are extraordinary resources for the hobbyist and professional community, but they're built for power users who already know what they're looking for. FireWave is the front door.

This site is built for several audiences. Volunteer firefighters and off-duty career firefighters who want to monitor neighboring jurisdictions for situational awareness. EMS dispatchers staying current on adjacent county plans. Journalists and photojournalists covering wildfires, structure fires, and mass-casualty incidents who need to know which channel to listen to before they leave the office. Ham radio operators who are pulling AUXCOMM duty during a disaster. And the much larger group of curious residents who hear sirens go past their house and want to understand what's happening.

What we publish

Every state in the country gets a page. Every county we have on file gets a page. Every agency we list gets a page. Every NIFOG nationwide interop channel gets a detail page. The data is server-rendered HTML — no app to install, no JavaScript framework required, no login. You can bookmark a county page, send the link to a friend, and trust that it will still load five years from now.

The frequency data is curated from publicly published sources: NIFOG (the National Interoperability Field Operations Guide, published by DHS/CISA SAFECOM), state interop plan documents, and well-known common dispatch channels in the public-safety bands. Where we list a "representative" county dispatch channel, we mark it clearly — those entries are common public-safety channel plan picks intended to give scanner programmers a reasonable starting point, not a guaranteed match for the agency's current in-use channel. For operationally critical use, always confirm with the agency or with a current entry in a comprehensive database like RadioReference.

What we don't do

We do not republish proprietary frequency databases, encrypted system keys, or anything that would help someone defeat lawful encryption. We do not list talkgroups for systems that have moved to encrypted operation. We do not mirror live dispatch audio. The channels listed here are the same ones any scanner programmer can find by reading the public NIFOG document or a state interop plan.

Independence

FireWave is independent. We are not a government agency. We are not affiliated with any fire department, EMS agency, or radio manufacturer. The site is supported by tasteful display advertising — placeholders are reserved in the page layout but no ads appear until we have a relationship that meets our editorial standards.