Apparatus

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sensors Mode-S transponder

34639A

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-NFX · BEECH 200 Super King Air

Hex
34639A
Octal
15061632
Decimal
3,433,370
Country
ES
Tail
EC-NFX
Type
BE20
No current signal · last broadcast 5h ago
Flights observed
62
Distinct callsigns
2
Country
ES
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S 34639A.

Country allocation

The ICAO 24-bit address 34639A 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
MEECNFX - 61 2026-07-25
HET115 - 1 2026-04-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 MEECNFX - Jul 25, 14:15 UTCJul 25, 14:45 UTC30m
2026-07-25 MEECNFX - Jul 25, 12:10 UTCJul 25, 12:45 UTC35m
2026-07-24 MEECNFX - Jul 24, 20:55 UTCJul 24, 21:25 UTC30m
2026-07-24 MEECNFX - Jul 24, 19:10 UTCJul 24, 19:45 UTC35m
2026-07-24 MEECNFX - Jul 24, 10:10 UTCJul 24, 10:35 UTC25m
2026-07-24 MEECNFX - Jul 24, 08:20 UTCJul 24, 08:50 UTC30m
2026-07-23 MEECNFX - Jul 23, 10:20 UTCJul 23, 10:55 UTC35m
2026-07-23 MEECNFX - Jul 23, 08:05 UTCJul 23, 08:40 UTC35m
2026-07-22 MEECNFX - Jul 22, 21:55 UTCJul 22, 22:15 UTC20m
2026-07-22 MEECNFX - Jul 22, 18:55 UTCJul 22, 19:45 UTC50m
2026-07-21 MEECNFX - Jul 21, 16:40 UTCJul 21, 16:50 UTC10m
2026-07-21 MEECNFX - Jul 21, 13:40 UTCJul 21, 13:50 UTC10m
2026-07-19 MEECNFX - Jul 19, 15:00 UTCJul 19, 15:15 UTC15m
2026-07-19 MEECNFX - Jul 19, 14:20 UTCJul 19, 14:30 UTC10m
2026-07-19 MEECNFX - Jul 19, 08:35 UTCJul 19, 10:05 UTC1h 30m
2026-07-07 MEECNFX - Jul 7, 16:05 UTCJul 7, 17:50 UTC1h 45m
2026-07-07 MEECNFX SVQ → BCN Jul 7, 13:10 UTCJul 7, 15:10 UTC2h 0m
2026-07-07 MEECNFX - Jul 7, 09:15 UTCJul 7, 12:15 UTC3h 0m
2026-07-06 MEECNFX - Jul 6, 16:40 UTCJul 6, 17:10 UTC30m
2026-07-06 MEECNFX - Jul 6, 15:30 UTCJul 6, 16:05 UTC35m
2026-07-06 MEECNFX - Jul 6, 14:20 UTCJul 6, 14:50 UTC30m
2026-07-06 MEECNFX - Jul 6, 13:45 UTCJul 6, 14:05 UTC20m
2026-07-06 MEECNFX - Jul 6, 12:35 UTCJul 6, 13:15 UTC40m
2026-07-06 MEECNFX - Jul 6, 10:40 UTCJul 6, 11:10 UTC30m
2026-07-06 MEECNFX - Jul 6, 09:30 UTCJul 6, 10:05 UTC35m
2026-07-05 MEECNFX - Jul 5, 14:10 UTCJul 5, 15:30 UTC1h 20m
2026-07-05 MEECNFX - Jul 5, 11:50 UTCJul 5, 12:15 UTC25m
2026-07-05 MEECNFX - Jul 5, 09:50 UTCJul 5, 11:20 UTC1h 30m
2026-07-04 MEECNFX - Jul 4, 19:20 UTCJul 4, 19:55 UTC35m
2026-07-04 MEECNFX - Jul 4, 17:50 UTCJul 4, 18:35 UTC45m
2026-07-04 MEECNFX - Jul 4, 15:25 UTCJul 4, 17:00 UTC1h 35m
2026-07-02 MEECNFX - Jul 2, 16:45 UTCJul 2, 18:05 UTC1h 20m
2026-07-02 MEECNFX - Jul 2, 13:35 UTCJul 2, 14:55 UTC1h 20m
2026-07-02 MEECNFX - Jul 2, 12:15 UTCJul 2, 12:50 UTC35m
2026-07-01 MEECNFX - Jul 1, 16:55 UTCJul 1, 17:25 UTC30m
2026-07-01 MEECNFX - Jul 1, 15:55 UTCJul 1, 16:25 UTC30m
2026-07-01 MEECNFX - Jul 1, 12:45 UTCJul 1, 13:10 UTC25m
2026-07-01 MEECNFX - Jul 1, 11:40 UTCJul 1, 12:05 UTC25m
2026-07-01 MEECNFX - Jul 1, 10:35 UTCJul 1, 11:00 UTC25m
2026-07-01 MEECNFX - Jul 1, 09:50 UTCJul 1, 10:05 UTC15m
2026-06-30 MEECNFX - Jun 30, 11:40 UTCJun 30, 13:45 UTC2h 5m
2026-06-30 MEECNFX - Jun 30, 09:20 UTCJun 30, 09:30 UTC10m
2026-06-24 MEECNFX - Jun 24, 11:39 UTCJun 24, 11:50 UTC10m
2026-06-20 MEECNFX - Jun 20, 15:49 UTCJun 20, 16:14 UTC25m
2026-06-20 MEECNFX - Jun 20, 14:54 UTCJun 20, 15:14 UTC20m
2026-06-18 MEECNFX - Jun 18, 16:20 UTCJun 18, 16:35 UTC15m
2026-06-13 MEECNFX - Jun 13, 12:45 UTCJun 13, 13:00 UTC15m
2026-06-13 MEECNFX - Jun 13, 10:25 UTCJun 13, 11:20 UTC55m
2026-06-12 MEECNFX - Jun 12, 12:35 UTCJun 12, 13:00 UTC25m
2026-06-12 MEECNFX - Jun 12, 10:45 UTCJun 12, 11:40 UTC55m

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

Mode-S 34639A frequently asked

What is Mode-S code 34639A?
34639A is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-NFX.
Where is Mode-S 34639A registered?
Mode-S code 34639A is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 34639A broadcasting right now?
No active broadcast right now. Last signal was 5h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 34639A, octal 15061632, decimal 3,433,370.
What flights does 34639A operate?
Mode-S 34639A has broadcast 2 distinct callsigns, including MEECNFX, HET115.