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sensors Mode-S transponder

440CEC

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-IXF · BOEING 737-800

Hex
440CEC
Octal
21006354
Decimal
4,459,756
Country
AT
Tail
OE-IXF
Type
B738
Broadcasting now · callsign TAY2ST · 25,000 ft
Flights observed
201
Distinct callsigns
20
Country
AT
Last broadcast
Jul 26, 20:45 UTC

Current position

440CEC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 440CEC 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
TAY9MS ASL Airlines Belgium 22 2026-07-22
TAY3RQ - 22 2026-07-17
TAY1MS - 21 2026-07-22
TAY4RQ ASL Airlines Belgium 15 2026-07-17
TAY6IX - 8 2026-07-14
TAY5IX - 8 2026-07-14
TAY8SR - 7 2026-07-23
TAY3SF - 7 2026-06-30
TAY8LL - 6 2026-05-27
TAY7SR ASL Airlines Belgium 6 2026-07-23
TAY7LL - 6 2026-05-27
TAY6SF - 6 2026-06-30
TAY8VC - 5 2026-07-02
TAY6TR ASL Airlines Belgium 4 2026-04-15
TAY6DN - 4 2026-06-17
TAY2VQ - 4 2026-07-07
TAY1VQ - 4 2026-07-24
TAY7CA ASL Airlines Belgium 3 2026-04-20
TAY5TR ASL Airlines Belgium 3 2026-04-15
TAY2KU - 3 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TAY2RQ - Jul 26, 19:10 UTCJul 26, 20:45 UTC1h 35m
2026-07-24 TAY5AD MAD → CDG Jul 24, 21:05 UTCJul 24, 22:30 UTC1h 25m
2026-07-24 TAY5AD MAD → CDG Jul 24, 18:10 UTCJul 24, 19:00 UTC50m
2026-07-24 TAY1VQ - Jul 24, 06:00 UTCJul 24, 06:45 UTC45m
2026-07-24 TAY1VQ - Jul 24, 02:05 UTCJul 24, 04:05 UTC2h 0m
2026-07-23 TAY8SR MUC → LGG Jul 23, 21:40 UTCJul 23, 22:40 UTC1h 0m
2026-07-23 TAY8SR - Jul 23, 18:50 UTCJul 23, 20:05 UTC1h 15m
2026-07-23 TAY7SR TSR → LGG Jul 23, 04:30 UTCJul 23, 05:30 UTC1h 0m
2026-07-23 TAY7SR TSR → LGG Jul 23, 02:05 UTCJul 23, 03:05 UTC1h 0m
2026-07-22 TAY9MS AMS → CDG Jul 22, 21:10 UTCJul 22, 22:10 UTC1h 0m
2026-07-22 TAY1MS CDG → AMS Jul 22, 02:25 UTCJul 22, 03:10 UTC45m
2026-07-21 TAY9MS AMS → CDG Jul 21, 21:10 UTCJul 21, 22:05 UTC55m
2026-07-21 TAY1MS CDG → AMS Jul 21, 02:40 UTCJul 21, 03:25 UTC45m
2026-07-20 TAY2KU - Jul 20, 18:45 UTCJul 20, 21:10 UTC2h 25m
2026-07-19 TAY1EH - Jul 19, 17:30 UTCJul 19, 19:40 UTC2h 10m
2026-07-17 TAY4RQ NUE → BRQ Jul 17, 21:50 UTCJul 17, 23:05 UTC1h 15m
2026-07-17 TAY4RQ NUE → BRQ Jul 17, 19:45 UTCJul 17, 20:35 UTC50m
2026-07-17 TAY3RQ PRG → BRQ Jul 17, 05:20 UTCJul 17, 05:50 UTC30m
2026-07-17 TAY3RQ CDG → PRG Jul 17, 02:54 UTCJul 17, 04:14 UTC1h 20m
2026-07-16 TAY9MS - Jul 16, 21:05 UTCJul 16, 22:15 UTC1h 10m
2026-07-16 TAY1MS CDG → AMS Jul 16, 02:30 UTCJul 16, 03:20 UTC50m
2026-07-15 TAY9MS - Jul 15, 21:20 UTCJul 15, 22:15 UTC55m
2026-07-15 TAY1MS - Jul 15, 02:35 UTCJul 15, 03:15 UTC40m
2026-07-14 TAY6IX - Jul 14, 19:55 UTCJul 14, 21:55 UTC2h 0m
2026-07-14 TAY6IX - Jul 14, 17:45 UTCJul 14, 18:40 UTC55m
2026-07-14 TAY5IX - Jul 14, 04:35 UTCJul 14, 05:40 UTC1h 5m
2026-07-14 TAY5IX - Jul 14, 01:50 UTCJul 14, 03:20 UTC1h 30m
2026-07-13 TAY9MS AMS → CDG Jul 13, 21:15 UTCJul 13, 22:05 UTC50m
2026-07-10 TAY1MS - Jul 10, 02:25 UTCJul 10, 03:10 UTC45m
2026-07-09 TAY9MS AMS → CDG Jul 9, 21:15 UTCJul 9, 22:10 UTC55m
2026-07-09 TAY1MS - Jul 9, 02:30 UTCJul 9, 03:10 UTC40m
2026-07-08 TAY9MS - Jul 8, 21:15 UTCJul 8, 22:10 UTC55m
2026-07-08 TAY1MS - Jul 8, 02:45 UTCJul 8, 03:30 UTC45m
2026-07-07 TAY2VQ - Jul 7, 20:30 UTCJul 7, 21:50 UTC1h 20m
2026-07-07 TAY2VQ - Jul 7, 18:15 UTCJul 7, 19:10 UTC55m
2026-07-07 TAY1VQ - Jul 7, 06:05 UTCJul 7, 06:50 UTC45m
2026-07-07 TAY1VQ - Jul 7, 02:15 UTCJul 7, 04:10 UTC1h 55m
2026-07-02 TAY9VL - Jul 2, 21:15 UTCJul 2, 22:55 UTC1h 40m
2026-07-02 TAY9VL - Jul 2, 18:55 UTCJul 2, 19:35 UTC40m
2026-07-02 TAY8VC - Jul 2, 05:35 UTCJul 2, 06:20 UTC45m
2026-07-02 TAY8VC - Jul 2, 03:15 UTCJul 2, 04:20 UTC1h 5m
2026-07-01 TAY9MS AMS → CDG Jul 1, 21:20 UTCJul 1, 22:00 UTC40m
2026-07-01 TAY1MS - Jul 1, 02:30 UTCJul 1, 03:15 UTC45m
2026-06-30 TAY6SF - Jun 30, 20:00 UTCJun 30, 22:40 UTC2h 40m
2026-06-30 TAY6SF - Jun 30, 17:40 UTCJun 30, 18:35 UTC55m
2026-06-30 TAY3SF - Jun 30, 06:10 UTCJun 30, 06:40 UTC30m
2026-06-30 TAY3SF - Jun 30, 02:50 UTCJun 30, 05:15 UTC2h 25m
2026-06-29 TAY2KU - Jun 29, 19:05 UTCJun 29, 21:44 UTC2h 40m
2026-06-28 TAY1EH - Jun 28, 19:29 UTCJun 28, 19:44 UTC15m
2026-06-28 TAY1EH - Jun 28, 16:00 UTCJun 28, 18:25 UTC2h 25m

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

Mode-S 440CEC frequently asked

What is Mode-S code 440CEC?
440CEC is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-IXF.
Where is Mode-S 440CEC registered?
Mode-S code 440CEC is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 440CEC broadcasting right now?
Yes. Mode-S 440CEC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 440CEC, octal 21006354, decimal 4,459,756.
What flights does 440CEC operate?
Mode-S 440CEC has broadcast 20 distinct callsigns, including TAY9MS, TAY3RQ, TAY1MS, TAY4RQ, TAY6IX.