Apparatus

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sensors Mode-S transponder

440590

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-FZB · CESSNA 510 Citation Mustang

Hex
440590
Octal
21002620
Decimal
4,457,872
Country
AT
Tail
OE-FZB
Type
C510
No current signal · last broadcast 15d ago
Flights observed
83
Distinct callsigns
20
Country
AT
Last broadcast
15d ago

Last known position

Most recent position reported by Mode-S 440590.

Country allocation

The ICAO 24-bit address 440590 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 20 distinct

Callsign Airline Flights Last seen
GAC961Y - 2 2026-06-03
GAC961X - 2 2026-06-03
GAC863N - 2 2026-06-02
GAC081A - 2 2026-06-19
OEFZB - 1 2026-05-29
GAC997X - 1 2026-06-21
GAC996W - 1 2026-06-01
GAC995T - 1 2026-06-26
GAC992T - 1 2026-06-15
GAC985C - 1 2026-06-15
GAC970B - 1 2026-06-19
GAC966F - 1 2026-06-13
GAC962N - 1 2026-06-07
GAC961Z - 1 2026-06-03
GAC961W - 1 2026-06-03
GAC886Y - 1 2026-06-22
GAC885X - 1 2026-06-01
GAC881U - 1 2026-06-16
GAC860W - 1 2026-06-21
GAC851N - 1 2026-06-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-29 GAC482P - Jun 29, 12:29 UTCJun 29, 13:59 UTC1h 30m
2026-06-28 GAC102Z - Jun 28, 15:44 UTCJun 28, 17:34 UTC1h 50m
2026-06-28 GAC507W - Jun 28, 10:04 UTCJun 28, 11:14 UTC1h 10m
2026-06-28 GAC618V - Jun 28, 07:05 UTCJun 28, 08:00 UTC55m
2026-06-27 GAC498M NCE → VCE Jun 27, 16:20 UTCJun 27, 17:14 UTC55m
2026-06-26 GAC995T - Jun 26, 20:10 UTCJun 26, 21:50 UTC1h 40m
2026-06-26 GAC006S - Jun 26, 16:39 UTCJun 26, 17:44 UTC1h 5m
2026-06-26 GAC570W - Jun 26, 12:19 UTCJun 26, 14:25 UTC2h 5m
2026-06-26 GAC792T - Jun 26, 10:35 UTCJun 26, 11:05 UTC30m
2026-06-25 GAC533C - Jun 25, 12:10 UTCJun 25, 13:20 UTC1h 10m
2026-06-25 GAC644B OLB → ACH Jun 25, 08:20 UTCJun 25, 09:50 UTC1h 30m
2026-06-24 GAC186G - Jun 24, 19:39 UTCJun 24, 21:29 UTC1h 50m
2026-06-24 GAC297F - Jun 24, 15:09 UTCJun 24, 16:14 UTC1h 5m
2026-06-24 GAC297T TRS → IBZ Jun 24, 11:24 UTCJun 24, 13:54 UTC2h 30m
2026-06-23 GAC308S PEG → TRS Jun 23, 17:15 UTCJun 23, 17:59 UTC45m
2026-06-23 GAC703V TLN → PEG Jun 23, 14:49 UTCJun 23, 16:05 UTC1h 15m
2026-06-23 GAC814U - Jun 23, 13:05 UTCJun 23, 13:59 UTC55m
2026-06-23 GAC527J - Jun 23, 07:40 UTCJun 23, 08:25 UTC45m
2026-06-22 GAC638J - Jun 22, 15:10 UTCJun 22, 15:35 UTC25m
2026-06-22 GAC442G - Jun 22, 12:10 UTCJun 22, 13:39 UTC1h 30m
2026-06-22 GAC553F - Jun 22, 10:15 UTCJun 22, 10:55 UTC40m
2026-06-22 GAC886Y - Jun 22, 06:39 UTCJun 22, 08:44 UTC2h 5m
2026-06-21 GAC997X - Jun 21, 13:15 UTCJun 21, 14:54 UTC1h 40m
2026-06-21 GAC860W - Jun 21, 10:09 UTCJun 21, 11:24 UTC1h 15m
2026-06-19 GAC466B - Jun 19, 14:19 UTCJun 19, 15:24 UTC1h 5m
2026-06-19 GAC577A - Jun 19, 12:25 UTCJun 19, 13:14 UTC50m
2026-06-19 GAC970B - Jun 19, 09:24 UTCJun 19, 09:59 UTC35m
2026-06-19 GAC081A - Jun 19, 06:59 UTCJun 19, 07:59 UTC1h 0m
2026-06-19 GAC081A BRN → BRN Jun 19, 06:44 UTCJun 19, 06:49 UTC5m
2026-06-18 GAC229R - Jun 18, 11:35 UTCJun 18, 13:50 UTC2h 15m
2026-06-18 GAC441N - Jun 18, 08:15 UTCJun 18, 09:45 UTC1h 30m
2026-06-17 GAC574V - Jun 17, 15:20 UTCJun 17, 16:40 UTC1h 20m
2026-06-17 GAC453L - Jun 17, 08:00 UTCJun 17, 09:30 UTC1h 30m
2026-06-17 GAC564L - Jun 17, 05:45 UTCJun 17, 06:35 UTC50m
2026-06-16 GAC645B - Jun 16, 13:44 UTCJun 16, 15:15 UTC1h 30m
2026-06-16 GAC756A - Jun 16, 09:34 UTCJun 16, 09:55 UTC20m
2026-06-16 GAC881U - Jun 16, 07:09 UTCJun 16, 08:35 UTC1h 25m
2026-06-15 GAC992T - Jun 15, 15:55 UTCJun 15, 17:25 UTC1h 30m
2026-06-15 GAC525Z - Jun 15, 13:25 UTCJun 15, 14:40 UTC1h 15m
2026-06-15 GAC636Y - Jun 15, 11:00 UTCJun 15, 12:00 UTC1h 0m
2026-06-15 GAC985C - Jun 15, 08:15 UTCJun 15, 09:35 UTC1h 20m
2026-06-15 GAC096B - Jun 15, 06:49 UTCJun 15, 07:15 UTC25m
2026-06-14 GAC044D - Jun 14, 16:25 UTCJun 14, 17:55 UTC1h 30m
2026-06-14 GAC155C NCE → LME Jun 14, 11:05 UTCJun 14, 12:35 UTC1h 30m
2026-06-14 GAC000F - Jun 14, 08:10 UTCJun 14, 09:45 UTC1h 35m
2026-06-13 GAC111E NCE → LBG Jun 13, 16:35 UTCJun 13, 18:10 UTC1h 35m
2026-06-13 GAC744J - Jun 13, 13:25 UTCJun 13, 15:20 UTC1h 55m
2026-06-13 GAC966F - Jun 13, 10:50 UTCJun 13, 12:15 UTC1h 25m
2026-06-13 GAC479E - Jun 13, 09:10 UTCJun 13, 10:00 UTC50m
2026-06-11 GAC708E - Jun 11, 13:15 UTCJun 11, 13:45 UTC30m

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-FZB page for operator, model, and routing details .

Mode-S 440590 frequently asked

What is Mode-S code 440590?
440590 is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-FZB.
Where is Mode-S 440590 registered?
Mode-S code 440590 is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440590 broadcasting right now?
No active broadcast right now. Last signal was 15d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440590, octal 21002620, decimal 4,457,872.
What flights does 440590 operate?
Mode-S 440590 has broadcast 20 distinct callsigns, including GAC961Y, GAC961X, GAC863N, GAC081A, OEFZB.