NOTAM Decoder
Turns raw ICAO NOTAM text into clear, plain-English information plotted on an interactive map. Each notice is parsed into structured fields: location, affected facility, effective and expiry times, altitude limits, and a readable description of the hazard or restriction. Coordinates and radii are drawn as markers, circles, and polygons, so pilots and planners can see at a glance where a notice applies and how it relates to airports, airspace, and routes. — broken out and plotted on a map, instead of one dense block of aviation shorthand.
Aviation shorthand, unpacked.
The data comes from publicly available aeronautical sources and is enriched with open-source datasets, such as airport and navaid references, to add context and fill gaps in the original text. Notices can be filtered by area, time window, or category, which cuts through the dense, abbreviation-heavy format of traditional NOTAM briefings. The result is a faster, more intuitive way to understand operational notices, with the original raw text always kept alongside the decoded view for reference.
Structured decoding
Q-code, FIR, traffic, purpose, scope, upper and lower flight levels, schedule, and free-text description are all pulled apart and labeled.
Area-of-influence map
Coordinates parsed out of the raw text become a live map overlay — a point, line, polygon, or Q-line circle — auto-zoomed to its radius.
FIR list view
NOTAMs organized into collapsible sections by Flight Information Region, so you can scan one FIR at a time instead of one long feed.
Time at a glance
Start and end times are parsed into real dates, with a live countdown to expiration instead of a raw Zulu timestamp to do math on.
Class F cross-reference
CYR restricted-airspace NOTAMs are matched against real published airspace boundaries, so you see which named area each one applies to.
Open Source Data-backed lookups
Waypoints, NAVAIDs, aerodromes, and sectors referenced in a NOTAM are matched against real open sourced data, not guessed from the text alone.
Every Q-code is 5 characters: a fixed Q, then a
2-letter subject and a 2-letter condition. NOTAM Decoder splits
those out the same way — the raw code becomes a subject and
a condition you can actually read, right alongside the lower and
upper limits and the coordinates that follow it.
NOTAMs published in Canada are grouped into series A through Z, and each letter maps to a specific FIR region and dissemination scope — some distributed internationally, some only within Canada and the USA, some within Canada alone. NOTAM Decoder knows this table so every NOTAM's series tells you where it's really coming from.
Reference use only. NOTAM Decoder is a planning and reference tool, not an approved primary source for flight operations. Always verify safety-critical NOTAM information through official sources before you fly.