Observed aircraft • ACARS + ADS-B

Fleet Lists.

Select an airline to see aircraft that were actually observed in the ACARSd archive using that carrier's ICAO or IATA flight identifiers during the selected period.

Airline Airline name • ICAO / IATA identifiers Observation period 30 days is the historical Fleet List default

Observed fleet

Ortac AOC Ltd

Flight identifier: ORT • last 30 days

2 aircraft observed Database query • 0.00 s

Registration	ICAO24	Type	Last flight	Last heard (UTC)	Observations	Source
2-MACH	43F819	Citation X	ORT232B	2026-10-12 17:05:04	20	ACARS + ADS-B
2-ONEL	43F7C0	75	ORT535C	2026-10-09 19:19:46	77	ACARS + ADS-B

These are observed aircraft, not an official airline fleet registry. Wet leases, codeshares, substitutions, ferry flights and reused flight identifiers can cause aircraft from another operator to appear here.

What this page means

The old Fleet List idea — rebuilt from observations.

The historical ACARSd Fleet List was based on aircraft actually heard using an airline's flight identifiers. This reconstruction follows the same principle and now combines the restored ACARS archive with new Mode-S / ADS-B observations where available.