sensors Mode-S transponder

347302

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NXU · BOEING 737-800

Hex
347302
Octal
15071402
Decimal
3,437,314
Country
ES
Tail
EC-NXU
Type
B738
Transponder active on ground
Flights observed
2
Distinct callsigns
2
Country
ES
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 347302.

Country allocation

The ICAO 24-bit address 347302 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 2 distinct

Callsign Airline Flights Last seen
BCS2MC European Air Transport 1 2026-04-13
BCS107 European Air Transport 1 2026-04-13

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-13 BCS107 EMA → LEJ Apr 13, 22:40 UTCApr 13, 23:40 UTC1h 0m
2026-04-13 BCS2MC DUB → LEJ Apr 13, 20:20 UTCApr 13, 21:00 UTC40m

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

Mode-S 347302 frequently asked

What is Mode-S code 347302?
347302 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NXU.
Where is Mode-S 347302 registered?
Mode-S code 347302 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 347302 broadcasting right now?
Mode-S 347302 is currently broadcasting from the ground.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 347302, octal 15071402, decimal 3,437,314.
What flights does 347302 operate?
Mode-S 347302 has broadcast 2 distinct callsigns, including BCS2MC, BCS107.