sensors Mode-S transponder

4400F3

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-IDO · AIRBUS A-320

Hex
4400F3
Octal
21000363
Decimal
4,456,691
Country
AT
Tail
OE-IDO
Type
A320
No current signal · last broadcast 14h ago
Flights observed
11
Distinct callsigns
10
Country
AT
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 4400F3.

Country allocation

The ICAO 24-bit address 4400F3 falls within the block assigned to Austria (AT) by ICAO Annex 10, Volume III. Every aircraft registered in Austria receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 10 distinct

Callsign Airline Flights Last seen
EJU95BR - 2 2026-04-13
EJU97VT easyJet Europe 1 2026-04-14
EJU95BW easyJet Europe 1 2026-04-14
EJU75WQ - 1 2026-04-13
EJU75NR - 1 2026-04-12
EJU65YE - 1 2026-04-13
EJU56VP easyJet Europe 1 2026-04-12
EJU15PC - 1 2026-04-13
EJU14YR - 1 2026-04-13
EJU13EQ - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 EJU97VT MAD → LIS Apr 14, 08:05 UTCApr 14, 08:55 UTC50m
2026-04-14 EJU95BW LIS → MAD Apr 14, 06:00 UTCApr 14, 07:00 UTC1h 0m
2026-04-13 EJU15PC - Apr 13, 19:45 UTCApr 13, 20:10 UTC25m
2026-04-13 EJU65YE - Apr 13, 17:00 UTCApr 13, 18:45 UTC1h 45m
2026-04-13 EJU95BR - Apr 13, 12:20 UTCApr 13, 15:30 UTC3h 10m
2026-04-13 EJU95BR - Apr 13, 11:55 UTCApr 13, 15:30 UTC3h 35m
2026-04-13 EJU13EQ - Apr 13, 11:40 UTCApr 13, 12:15 UTC35m
2026-04-13 EJU14YR - Apr 13, 09:00 UTCApr 13, 10:30 UTC1h 30m
2026-04-13 EJU75WQ LIS → BCN Apr 13, 05:50 UTCApr 13, 07:30 UTC1h 40m
2026-04-12 EJU56VP ZRH → LIS Apr 12, 19:55 UTCApr 12, 20:15 UTC20m
2026-04-12 EJU75NR - Apr 12, 17:15 UTCApr 12, 18:15 UTC1h 0m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the OE-IDO page for operator, model, and routing details .

Mode-S 4400F3 frequently asked

What is Mode-S code 4400F3?
4400F3 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-IDO.
Where is Mode-S 4400F3 registered?
Mode-S code 4400F3 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4400F3 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4400F3, octal 21000363, decimal 4,456,691.
What flights does 4400F3 operate?
Mode-S 4400F3 has broadcast 10 distinct callsigns, including EJU95BR, EJU97VT, EJU95BW, EJU75WQ, EJU75NR.