sensors Mode-S transponder

347414

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to HU.26-31A · AIRBUS HELICOPTERS EC-135/635

Hex
347414
Octal
15072024
Decimal
3,437,588
Country
ES
Tail
HU.26-31A
Type
EC35
No current signal · last broadcast 20h ago
Flights observed
4
Distinct callsigns
1
Country
ES
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 347414.

Country allocation

The ICAO 24-bit address 347414 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
ANGEL08 - 4 2026-04-14

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 ANGEL08 - Apr 14, 10:30 UTCApr 14, 11:05 UTC35m
2026-04-13 ANGEL08 - Apr 13, 21:00 UTCApr 13, 21:35 UTC35m
2026-04-13 ANGEL08 - Apr 13, 19:50 UTCApr 13, 20:40 UTC50m
2026-04-13 ANGEL08 - Apr 13, 18:40 UTCApr 13, 20:10 UTC1h 30m

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 HU.26-31A page for operator, model, and routing details .

Mode-S 347414 frequently asked

What is Mode-S code 347414?
347414 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to HU.26-31A.
Where is Mode-S 347414 registered?
Mode-S code 347414 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 347414 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 347414, octal 15072024, decimal 3,437,588.
What flights does 347414 operate?
Mode-S 347414 has broadcast 1 distinct callsign, including ANGEL08.