sensors Mode-S transponder

347245

ICAO 24-bit transponder address · allocated to Spain

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

Hex
347245
Octal
15071105
Decimal
3,437,125
Country
ES
Tail
EC-NTB
Type
A359
No current signal · last broadcast 17h ago
Flights observed
4
Distinct callsigns
1
Country
ES
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 347245.

Country allocation

The ICAO 24-bit address 347245 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
CND5997 Aero Continente Dominicana 4 2026-04-14

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 CND5997 BON → AMS Apr 14, 10:20 UTCApr 14, 11:05 UTC45m
2026-04-13 CND5997 BON → AMS Apr 13, 10:20 UTCApr 13, 11:35 UTC1h 15m
2026-04-13 CND5997 BON → AMS Apr 13, 04:20 UTCApr 13, 04:35 UTC15m
2026-04-13 CND5997 BON → AMS Apr 13, 04:05 UTCApr 13, 04:15 UTC10m

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

Mode-S 347245 frequently asked

What is Mode-S code 347245?
347245 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NTB.
Where is Mode-S 347245 registered?
Mode-S code 347245 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 347245 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 347245, octal 15071105, decimal 3,437,125.
What flights does 347245 operate?
Mode-S 347245 has broadcast 1 distinct callsign, including CND5997.