Apparatus

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sensors Mode-S transponder

4408FF

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-IFD · BOEING 747-400

Hex
4408FF
Octal
21004377
Decimal
4,458,751
Country
AT
Tail
OE-IFD
Type
B744
Broadcasting now · callsign BCS516 · 39,000 ft
Flights observed
102
Distinct callsigns
3
Country
AT
Last broadcast
18m ago

Current position

4408FF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4408FF 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 3 distinct

Callsign Airline Flights Last seen
BCS539 European Air Transport 49 2026-05-29
BCS516 European Air Transport 30 2026-05-30
BCS538 - 23 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BCS516 CVG → LEJ May 30, 03:40 UTCMay 30, 05:45 UTC2h 5m
2026-05-29 BCS539 ALA → LEJ May 29, 13:15 UTCMay 29, 17:20 UTC4h 6m
2026-05-29 BCS539 ALA → LEJ May 29, 02:55 UTCMay 29, 03:10 UTC15m
2026-05-29 BCS516 CVG → LEJ May 29, 00:10 UTCMay 29, 00:45 UTC35m
2026-05-28 BCS516 CVG → LEJ May 28, 08:35 UTCMay 28, 22:05 UTC13h 30m
2026-05-27 BCS539 ALA → LEJ May 27, 16:05 UTCMay 27, 20:00 UTC3h 55m
2026-05-27 BCS539 ALA → LEJ May 27, 05:35 UTCMay 27, 05:49 UTC15m
2026-05-27 BCS516 CVG → LEJ May 27, 01:05 UTCMay 27, 01:34 UTC30m
2026-05-26 BCS516 CVG → LEJ May 26, 09:09 UTCMay 26, 22:44 UTC13h 35m
2026-05-26 BCS539 ALA → LEJ May 26, 00:49 UTCMay 26, 02:00 UTC1h 10m
2026-05-25 BCS539 ALA → LEJ May 25, 13:30 UTCMay 25, 13:45 UTC15m
2026-05-25 BCS538 - May 25, 08:00 UTCMay 25, 08:35 UTC35m
2026-05-24 BCS538 - May 24, 21:10 UTCMay 24, 21:45 UTC35m
2026-05-24 BCS539 ALA → LEJ May 24, 01:55 UTCMay 24, 15:55 UTC14h 0m
2026-05-23 BCS516 CVG → LEJ May 23, 17:50 UTCMay 23, 18:20 UTC31m
2026-05-22 BCS516 CVG → LEJ May 22, 22:15 UTCMay 23, 15:35 UTC17h 19m
2026-05-22 BCS539 ALA → LEJ May 22, 13:25 UTCMay 22, 17:15 UTC3h 50m
2026-05-22 BCS539 ALA → LEJ May 22, 02:30 UTCMay 22, 02:45 UTC15m
2026-05-21 BCS516 CVG → LEJ May 21, 23:50 UTCMay 22, 00:20 UTC30m
2026-05-21 BCS516 CVG → LEJ May 21, 18:30 UTCMay 21, 21:40 UTC3h 10m
2026-05-21 BCS516 CVG → LEJ May 21, 17:10 UTCMay 21, 17:35 UTC25m
2026-05-21 BCS516 CVG → LEJ May 21, 08:15 UTCMay 21, 14:00 UTC5h 45m
2026-05-20 BCS539 ALA → LEJ May 20, 16:00 UTCMay 20, 20:15 UTC4h 15m
2026-05-20 BCS539 ALA → LEJ May 20, 05:40 UTCMay 20, 05:55 UTC15m
2026-05-19 BCS516 CVG → LEJ May 19, 23:55 UTCMay 20, 00:30 UTC35m
2026-05-19 BCS516 CVG → LEJ May 19, 18:50 UTCMay 19, 21:35 UTC2h 45m
2026-05-19 BCS516 CVG → LEJ May 19, 14:40 UTCMay 19, 14:55 UTC15m
2026-05-19 BCS516 CVG → LEJ May 19, 08:25 UTCMay 19, 11:50 UTC3h 25m
2026-05-19 BCS539 ALA → LEJ May 19, 00:20 UTCMay 19, 04:10 UTC3h 50m
2026-05-18 BCS539 ALA → LEJ May 18, 13:30 UTCMay 18, 13:45 UTC15m
2026-05-17 BCS538 - May 17, 21:35 UTCMay 18, 08:55 UTC11h 20m
2026-05-16 BCS539 ALA → LEJ May 16, 23:35 UTCMay 17, 14:05 UTC14h 30m
2026-05-15 BCS516 CVG → LEJ May 15, 23:50 UTCMay 16, 18:25 UTC18h 36m
2026-05-15 BCS516 CVG → LEJ May 15, 21:50 UTCMay 16, 18:25 UTC20h 36m
2026-05-15 BCS539 ALA → LEJ May 15, 15:40 UTCMay 15, 19:30 UTC3h 50m
2026-05-15 BCS539 ALA → LEJ May 15, 05:25 UTCMay 15, 05:45 UTC20m
2026-05-15 BCS516 CVG → LEJ May 15, 00:35 UTCMay 15, 01:00 UTC25m
2026-05-14 BCS516 CVG → LEJ May 14, 08:55 UTCMay 14, 22:25 UTC13h 30m
2026-05-13 BCS539 ALA → LEJ May 13, 16:05 UTCMay 13, 20:35 UTC4h 30m
2026-05-13 BCS539 ALA → LEJ May 13, 06:20 UTCMay 13, 06:35 UTC15m
2026-05-12 BCS516 CVG → LEJ May 12, 08:35 UTCMay 12, 11:15 UTC2h 40m
2026-05-11 BCS539 ALA → LEJ May 11, 13:40 UTCMay 11, 13:55 UTC15m
2026-05-10 BCS538 - May 10, 21:19 UTCMay 11, 08:40 UTC11h 20m
2026-05-09 BCS539 ALA → LEJ May 9, 23:40 UTCMay 10, 14:20 UTC14h 40m
2026-05-09 BCS516 CVG → LEJ May 9, 16:50 UTCMay 9, 20:15 UTC3h 25m
2026-05-09 BCS516 CVG → LEJ May 9, 13:15 UTCMay 9, 13:35 UTC20m
2026-05-09 BCS516 CVG → LEJ May 9, 03:40 UTCMay 9, 09:30 UTC5h 50m
2026-05-08 BCS539 ALA → LEJ May 8, 21:10 UTCMay 9, 01:00 UTC3h 50m
2026-05-08 BCS539 ALA → LEJ May 8, 10:19 UTCMay 8, 10:39 UTC20m
2026-05-08 BCS516 CVG → LEJ May 8, 07:34 UTCMay 8, 08:09 UTC35m

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

Mode-S 4408FF frequently asked

What is Mode-S code 4408FF?
4408FF is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-IFD.
Where is Mode-S 4408FF registered?
Mode-S code 4408FF is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4408FF broadcasting right now?
Yes. Mode-S 4408FF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4408FF, octal 21004377, decimal 4,458,751.
What flights does 4408FF operate?
Mode-S 4408FF has broadcast 3 distinct callsigns, including BCS539, BCS516, BCS538.