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sensors Mode-S transponder

4404AC

ICAO 24-bit transponder address · allocated to Austria

Currently assigned to OE-BXQ · AIRBUS HELICOPTERS EC-135/635

Hex
4404AC
Octal
21002254
Decimal
4,457,644
Country
AT
Tail
OE-BXQ
Type
EC35
No current signal · last broadcast 15h ago
Flights observed
134
Distinct callsigns
1
Country
AT
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4404AC.

Country allocation

The ICAO 24-bit address 4404AC 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 1 distinct

Callsign Airline Flights Last seen
OEBXQ - 134 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 OEBXQ - Jul 17, 11:20 UTCJul 17, 11:39 UTC20m
2026-07-17 OEBXQ - Jul 17, 09:20 UTCJul 17, 09:40 UTC20m
2026-07-17 OEBXQ LNZ → LNZ Jul 17, 06:35 UTCJul 17, 07:14 UTC40m
2026-07-16 OEBXQ - Jul 16, 09:40 UTCJul 16, 09:55 UTC15m
2026-07-16 OEBXQ - Jul 16, 07:30 UTCJul 16, 07:50 UTC20m
2026-07-15 OEBXQ - Jul 15, 12:50 UTCJul 15, 13:00 UTC10m
2026-07-15 OEBXQ - Jul 15, 11:15 UTCJul 15, 12:15 UTC1h 0m
2026-07-14 OEBXQ - Jul 14, 19:10 UTCJul 14, 19:40 UTC30m
2026-07-14 OEBXQ - Jul 14, 14:45 UTCJul 14, 15:15 UTC30m
2026-07-13 OEBXQ - Jul 13, 13:55 UTCJul 13, 14:05 UTC10m
2026-07-13 OEBXQ - Jul 13, 11:40 UTCJul 13, 11:55 UTC15m
2026-07-13 OEBXQ - Jul 13, 07:25 UTCJul 13, 08:15 UTC50m
2026-07-11 OEBXQ LNZ → LNZ Jul 11, 18:30 UTCJul 11, 19:20 UTC50m
2026-07-11 OEBXQ LNZ → LNZ Jul 11, 16:05 UTCJul 11, 17:30 UTC1h 25m
2026-07-10 OEBXQ - Jul 10, 12:45 UTCJul 10, 13:40 UTC55m
2026-07-09 OEBXQ - Jul 9, 09:35 UTCJul 9, 09:50 UTC15m
2026-07-09 OEBXQ - Jul 9, 07:35 UTCJul 9, 07:50 UTC15m
2026-07-08 OEBXQ LNZ → LNZ Jul 8, 12:30 UTCJul 8, 14:05 UTC1h 35m
2026-07-05 OEBXQ - Jul 5, 17:55 UTCJul 5, 18:15 UTC20m
2026-07-05 OEBXQ - Jul 5, 14:10 UTCJul 5, 14:30 UTC20m
2026-07-05 OEBXQ - Jul 5, 07:00 UTCJul 5, 07:30 UTC30m
2026-07-04 OEBXQ - Jul 4, 15:30 UTCJul 4, 17:00 UTC1h 30m
2026-07-04 OEBXQ - Jul 4, 13:15 UTCJul 4, 14:15 UTC1h 0m
2026-07-04 OEBXQ - Jul 4, 11:00 UTCJul 4, 11:15 UTC15m
2026-07-04 OEBXQ - Jul 4, 09:55 UTCJul 4, 10:15 UTC20m
2026-07-04 OEBXQ - Jul 4, 08:25 UTCJul 4, 08:45 UTC20m
2026-07-04 OEBXQ - Jul 4, 07:30 UTCJul 4, 07:50 UTC20m
2026-07-03 OEBXQ - Jul 3, 17:10 UTCJul 3, 18:05 UTC55m
2026-07-03 OEBXQ - Jul 3, 09:20 UTCJul 3, 10:00 UTC40m
2026-07-02 OEBXQ - Jul 2, 11:35 UTCJul 2, 12:00 UTC25m
2026-07-01 OEBXQ - Jul 1, 11:35 UTCJul 1, 11:55 UTC20m
2026-07-01 OEBXQ - Jul 1, 06:50 UTCJul 1, 07:05 UTC15m
2026-06-30 OEBXQ SZG → LNZ Jun 30, 12:35 UTCJun 30, 13:30 UTC55m
2026-06-29 OEBXQ - Jun 29, 20:04 UTCJun 29, 20:15 UTC10m
2026-06-29 OEBXQ - Jun 29, 15:45 UTCJun 29, 16:19 UTC35m
2026-06-29 OEBXQ - Jun 29, 13:54 UTCJun 29, 15:39 UTC1h 45m
2026-06-29 OEBXQ - Jun 29, 13:00 UTCJun 29, 13:49 UTC50m
2026-06-29 OEBXQ - Jun 29, 12:00 UTCJun 29, 12:20 UTC20m
2026-06-28 OEBXQ - Jun 28, 17:04 UTCJun 28, 17:19 UTC15m
2026-06-27 OEBXQ - Jun 27, 15:10 UTCJun 27, 16:04 UTC55m
2026-06-27 OEBXQ - Jun 27, 13:40 UTCJun 27, 14:05 UTC25m
2026-06-27 OEBXQ - Jun 27, 12:50 UTCJun 27, 13:35 UTC45m
2026-06-25 OEBXQ - Jun 25, 13:09 UTCJun 25, 13:55 UTC45m
2026-06-25 OEBXQ - Jun 25, 09:55 UTCJun 25, 10:35 UTC40m
2026-06-25 OEBXQ - Jun 25, 07:30 UTCJun 25, 08:55 UTC1h 25m
2026-06-24 OEBXQ - Jun 24, 14:00 UTCJun 24, 14:24 UTC25m
2026-06-24 OEBXQ - Jun 24, 10:30 UTCJun 24, 10:49 UTC20m
2026-06-24 OEBXQ - Jun 24, 09:15 UTCJun 24, 09:45 UTC30m
2026-06-20 OEBXQ - Jun 20, 11:40 UTCJun 20, 12:30 UTC50m
2026-06-20 OEBXQ - Jun 20, 10:34 UTCJun 20, 10:49 UTC15m

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

Mode-S 4404AC frequently asked

What is Mode-S code 4404AC?
4404AC is an ICAO 24-bit transponder address. Allocated to Austria. Assigned to OE-BXQ.
Where is Mode-S 4404AC registered?
Mode-S code 4404AC is allocated to Austria (AT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4404AC broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4404AC, octal 21002254, decimal 4,457,644.
What flights does 4404AC operate?
Mode-S 4404AC has broadcast 1 distinct callsign, including OEBXQ.