sensors Mode-S transponder

346408

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NHS · TECNAM P-2002 Sierra

Hex
346408
Octal
15062010
Decimal
3,433,480
Country
ES
Tail
EC-NHS
Type
SIRA
No current signal · last broadcast 14h ago
Flights observed
5
Distinct callsigns
5
Country
ES
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 346408.

Country allocation

The ICAO 24-bit address 346408 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 5 distinct

Callsign Airline Flights Last seen
EAX5G - 1 2026-04-13
EAX4G - 1 2026-04-13
EAX3G - 1 2026-04-13
EAX2G - 1 2026-04-14
EAX2B - 1 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 EAX2G - Apr 14, 10:20 UTCApr 14, 11:05 UTC45m
2026-04-13 EAX5G - Apr 13, 16:40 UTCApr 13, 17:35 UTC55m
2026-04-13 EAX4G - Apr 13, 15:00 UTCApr 13, 15:45 UTC45m
2026-04-13 EAX3G - Apr 13, 12:20 UTCApr 13, 13:35 UTC1h 15m
2026-04-13 EAX2B - Apr 13, 10:00 UTCApr 13, 10:20 UTC20m

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

Mode-S 346408 frequently asked

What is Mode-S code 346408?
346408 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NHS.
Where is Mode-S 346408 registered?
Mode-S code 346408 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 346408 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 346408, octal 15062010, decimal 3,433,480.
What flights does 346408 operate?
Mode-S 346408 has broadcast 5 distinct callsigns, including EAX5G, EAX4G, EAX3G, EAX2G, EAX2B.