Coverage and Methodology

What stands behind every status on this service, and what does not.

Coverage right now

Figures read from the live index, last rebuilt Mon, 24 Aug 2026 18:05:37 GMT (currently stale, one or more sources are quiet).

How a status is decided

Statuses are derived from published documents. Automated searches of official sources also update the status every four hours. Every automated change is checked against live flight evidence, and Ground Team overrides always take precedence. Machine-written summaries are labelled as machine-written. We show you each document with its date.

Live flight traffic is then set against a normal baseline for that airspace.

Alongside the paperwork we track what physically stops aircraft: volcanic activity, tropical cyclones, major earthquakes, floods and wildfires. We carry only the event types that affect flying. Non-aviation events such as drought do not appear.

Every layer carries its own timestamp. Restriction documents change over days; flight traffic changes by the minute.

What the three statuses mean

What stands behind a card

Every country is monitored. Where an authority publishes NOTAMs for the airspace region we read them; where a restriction document exists we name, date and link it; live traffic, weather hazards and physical disruption run everywhere.

Sources

What we do not do

We are not a flight planning tool. Crews and dispatchers have certified systems and must use them. This service is built for travel managers, security teams and people deciding whether to send someone somewhere.

We do not track land borders continuously. There is no reliable open feed for border crossings anywhere in the world. We cover them during a crisis, incident or named event, and we say so.

We do not republish licensed data. Everything above is published by a government or an open-data project on terms that permit it.

We do not claim a country is covered because a weather feed mentions it. Each card names the layers actually standing behind it.

NOTAMs, and how often they refresh

NOTAMs are the notices aviation authorities issue about their own airspace: runway closures, restricted areas, military activity, satellite navigation interference. We read them for 158 countries, by Flight Information Region rather than by airport, so a notice covering the whole airspace is not missed because it was filed against a different aerodrome.

Refresh runs at two speeds. Countries that members follow, or that carry a restriction document, are refreshed twice a day. The remainder are checked every three days.

Cards lead with what changed. New notices in the last 48 hours are shown before the total in force.

28 countries have no NOTAM feed, because no notice we could read named their airspace region. Those cards say so plainly, and the rest of the card (restriction documents, live traffic, weather and disruption) is unaffected.

Questions

Is this free?

Yes. New accounts follow four countries. CHARIS and SicuroResponse clients follow up to ten. For more countries, write to commercial@sicurogroup.com. Tell us which countries you need and we will come back with an invoice.

How current is it?

Each layer carries its own timestamp. Restriction documents are checked every two hours, live traffic every few minutes, and NOTAM feeds on the schedule shown for each country. The card shows when each layer last changed.

Why does a card sometimes say nothing has changed?

Because nothing has changed. We show the real date rather than manufacture an update.

Can I rely on this operationally?

Use it to decide where to look, then verify with the official source before you act. Every card links to its sources. This is not a flight planning tool and is not certified for dispatch.

Which countries have NOTAM feeds?

158 of the 186 countries in the registry. We read NOTAMs by Flight Information Region rather than by airport, so a notice covering a whole airspace is caught rather than missed because it was filed against a different aerodrome. Countries that members follow, or that carry a restriction document, refresh twice a day; the rest every three days. 28 countries have no feed, because no notice we could read names their airspace region.

Where does the data come from?

The tracker reads published aviation authority documents and open aviation, weather and hazard datasets. The named source layers are: FAA flight prohibitions and advisories; EASA Conflict Zone Information Bulletins; NOAA international SIGMETs; Smithsonian Global Volcanism Program; GDACS disaster alerts (EU/UN); adsb.fi and OpenSky live traffic; ICAO iSTARS NOTAMs; EASA CZIB CSV export; Transport Canada conflict-zone inventory (3-level grading); UK CAA conflict-zone safety notices; France DGAC/SIA conflict-zone AICs (series A); Germany LBA conflict zones; FAA NOTAM Search presence check; UK FCDO, US State Department, Canada (travel.gc.ca) & Australia (Smartraveller) travel advisories; GPSJam GPS/GNSS interference aggregate (ADS-B navigation integrity); autorouter.aero NOTAM aggregation; SkyLink NOTAM aggregation; NOAA aviationweather.gov hub METARs/TAFs; US Embassy security alerts (Baghdad, Beirut, Amman, Riyadh, Abu Dhabi, Manama, Doha, Muscat, Kuwait City, Tehran affairs unit); Flightradar24. The table above shows each source’s scope and terms.

Why does a busy airspace show no active NOTAMs?

The figure is as of the timestamp on the card, not this minute. Feeds refresh twice a day or every three days depending on the country. If the timestamp is days old, treat the count as historical and use the linked official source.