sensors Mode-S transponder

3461CB

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NCX · AIRBUS A-350-900

Hex
3461CB
Octal
15060713
Decimal
3,432,907
Country
ES
Tail
EC-NCX
Type
A359
No current signal · last broadcast 19h ago
Flights observed
6
Distinct callsigns
3
Country
ES
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 3461CB.

Country allocation

The ICAO 24-bit address 3461CB 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 3 distinct

Callsign Airline Flights Last seen
IBE0243 Iberia Airlines 3 2026-04-13
IBE0118 - 2 2026-04-13
IBE0244 Iberia Airlines 1 2026-04-14

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 IBE0244 SJO → MAD Apr 14, 07:00 UTCApr 14, 07:10 UTC10m
2026-04-13 IBE0243 MAD → SJO Apr 13, 17:35 UTCApr 13, 18:40 UTC1h 5m
2026-04-13 IBE0243 MAD → SJO Apr 13, 11:55 UTCApr 13, 12:05 UTC10m
2026-04-13 IBE0243 MAD → SJO Apr 13, 10:15 UTCApr 13, 12:05 UTC1h 50m
2026-04-13 IBE0118 - Apr 13, 00:25 UTCApr 13, 03:00 UTC2h 35m
2026-04-12 IBE0118 - Apr 12, 17:15 UTCApr 12, 19:30 UTC2h 15m

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

Mode-S 3461CB frequently asked

What is Mode-S code 3461CB?
3461CB is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NCX.
Where is Mode-S 3461CB registered?
Mode-S code 3461CB is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3461CB broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 3461CB, octal 15060713, decimal 3,432,907.
What flights does 3461CB operate?
Mode-S 3461CB has broadcast 3 distinct callsigns, including IBE0243, IBE0118, IBE0244.