Apparatus

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sensors Mode-S transponder

345542

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-MRJ · AGUSTA AW-139

Hex
345542
Octal
15052502
Decimal
3,429,698
Country
ES
Tail
EC-MRJ
Type
A139
No current signal · last broadcast 15h ago
Flights observed
102
Distinct callsigns
1
Country
ES
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 345542.

Country allocation

The ICAO 24-bit address 345542 falls within the block assigned to Spain (ES) by ICAO Annex 10, Volume III. Every aircraft registered in Spain 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
REECMRJ - 102 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 REECMRJ - Jul 13, 21:25 UTCJul 13, 23:00 UTC1h 35m
2026-07-11 REECMRJ - Jul 11, 10:25 UTCJul 11, 11:45 UTC1h 20m
2026-07-10 REECMRJ - Jul 10, 18:30 UTCJul 10, 18:55 UTC25m
2026-07-10 REECMRJ - Jul 10, 17:10 UTCJul 10, 17:40 UTC30m
2026-07-09 REECMRJ - Jul 9, 21:35 UTCJul 9, 23:15 UTC1h 40m
2026-07-08 REECMRJ - Jul 8, 17:50 UTCJul 8, 19:25 UTC1h 35m
2026-07-07 REECMRJ - Jul 7, 21:40 UTCJul 7, 22:55 UTC1h 15m
2026-07-07 REECMRJ - Jul 7, 17:45 UTCJul 7, 19:20 UTC1h 35m
2026-07-05 REECMRJ VLC → VLC Jul 5, 18:20 UTCJul 5, 19:40 UTC1h 20m
2026-07-04 REECMRJ VLC → VLC Jul 4, 10:00 UTCJul 4, 11:15 UTC1h 15m
2026-07-02 REECMRJ VLC → VLC Jul 2, 21:15 UTCJul 2, 22:45 UTC1h 30m
2026-07-02 REECMRJ - Jul 2, 15:10 UTCJul 2, 16:50 UTC1h 40m
2026-07-02 REECMRJ - Jul 2, 09:30 UTCJul 2, 11:05 UTC1h 35m
2026-06-30 REECMRJ - Jun 30, 12:30 UTCJun 30, 13:00 UTC30m
2026-06-30 REECMRJ - Jun 30, 11:15 UTCJun 30, 11:35 UTC20m
2026-06-29 REECMRJ - Jun 29, 21:34 UTCJun 29, 23:05 UTC1h 30m
2026-06-27 REECMRJ - Jun 27, 20:04 UTCJun 27, 20:19 UTC15m
2026-06-27 REECMRJ - Jun 27, 11:39 UTCJun 27, 12:15 UTC35m
2026-06-27 REECMRJ - Jun 27, 10:34 UTCJun 27, 10:54 UTC20m
2026-06-25 REECMRJ - Jun 25, 21:35 UTCJun 25, 22:59 UTC1h 25m
2026-06-22 REECMRJ - Jun 22, 18:54 UTCJun 22, 20:19 UTC1h 25m
2026-06-20 REECMRJ - Jun 20, 11:20 UTCJun 20, 11:40 UTC20m
2026-06-20 REECMRJ - Jun 20, 10:09 UTCJun 20, 10:29 UTC20m
2026-06-19 REECMRJ - Jun 19, 21:59 UTCJun 19, 23:14 UTC1h 15m
2026-06-17 REECMRJ - Jun 17, 21:35 UTCJun 17, 22:55 UTC1h 20m
2026-06-16 REECMRJ - Jun 16, 21:45 UTCJun 16, 22:30 UTC45m
2026-06-16 REECMRJ - Jun 16, 19:10 UTCJun 16, 19:19 UTC10m
2026-06-16 REECMRJ - Jun 16, 18:29 UTCJun 16, 19:00 UTC30m
2026-06-15 REECMRJ - Jun 15, 19:00 UTCJun 15, 19:39 UTC40m
2026-06-13 REECMRJ - Jun 13, 09:45 UTCJun 13, 11:25 UTC1h 40m
2026-06-12 REECMRJ - Jun 12, 16:55 UTCJun 12, 17:05 UTC10m
2026-06-11 REECMRJ - Jun 11, 21:15 UTCJun 11, 22:50 UTC1h 35m
2026-06-11 REECMRJ - Jun 11, 17:25 UTCJun 11, 19:05 UTC1h 40m
2026-06-08 REECMRJ - Jun 8, 21:25 UTCJun 8, 23:00 UTC1h 35m
2026-06-07 REECMRJ - Jun 7, 10:30 UTCJun 7, 11:50 UTC1h 20m
2026-06-05 REECMRJ - Jun 5, 14:10 UTCJun 5, 14:25 UTC15m
2026-06-05 REECMRJ - Jun 5, 11:40 UTCJun 5, 13:35 UTC1h 55m
2026-06-05 REECMRJ - Jun 5, 06:45 UTCJun 5, 08:15 UTC1h 30m
2026-06-04 REECMRJ VLC → VLC Jun 4, 21:25 UTCJun 4, 22:40 UTC1h 15m
2026-06-04 REECMRJ - Jun 4, 17:55 UTCJun 4, 18:15 UTC20m
2026-06-04 REECMRJ - Jun 4, 16:35 UTCJun 4, 17:20 UTC45m
2026-06-04 REECMRJ - Jun 4, 15:00 UTCJun 4, 15:10 UTC10m
2026-06-04 REECMRJ - Jun 4, 13:25 UTCJun 4, 14:55 UTC1h 30m
2026-06-03 REECMRJ - Jun 3, 18:10 UTCJun 3, 19:50 UTC1h 40m
2026-06-03 REECMRJ - Jun 3, 10:50 UTCJun 3, 11:40 UTC50m
2026-06-02 REECMRJ - Jun 2, 21:30 UTCJun 2, 23:00 UTC1h 30m
2026-06-01 REECMRJ VLC → VLC Jun 1, 18:55 UTCJun 1, 20:20 UTC1h 25m
2026-05-28 REECMRJ VLC → VLC May 28, 21:40 UTCMay 28, 23:20 UTC1h 40m
2026-05-28 REECMRJ VLC → VLC May 28, 18:50 UTCMay 28, 20:25 UTC1h 35m
2026-05-27 REECMRJ - May 27, 19:25 UTCMay 27, 19:40 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 EC-MRJ page for operator, model, and routing details .

Mode-S 345542 frequently asked

What is Mode-S code 345542?
345542 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-MRJ.
Where is Mode-S 345542 registered?
Mode-S code 345542 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 345542 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 345542, octal 15052502, decimal 3,429,698.
What flights does 345542 operate?
Mode-S 345542 has broadcast 1 distinct callsign, including REECMRJ.