Apparatus

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sensors Mode-S transponder

343499

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-LEB · BOMBARDIER BD-700 Global 6000/6500

Hex
343499
Octal
15032231
Decimal
3,421,337
Country
ES
Tail
EC-LEB
Type
GLEX
No current signal · last broadcast 6h ago
Flights observed
46
Distinct callsigns
2
Country
ES
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 343499.

Country allocation

The ICAO 24-bit address 343499 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
GES211B - 42 2026-07-17
GES212B - 4 2026-06-10

Recent flights last 46

DateFlightRouteTakeoffLandingDuration
2026-07-17 GES211B - Jul 17, 13:20 UTCJul 17, 20:40 UTC7h 20m
2026-07-16 GES211B PSA → MAD Jul 16, 11:54 UTCJul 16, 13:54 UTC2h 0m
2026-07-16 GES211B - Jul 16, 08:30 UTCJul 16, 10:04 UTC1h 35m
2026-07-11 GES211B BCN → MAD Jul 11, 11:35 UTCJul 11, 12:30 UTC55m
2026-07-11 GES211B - Jul 11, 04:15 UTCJul 11, 05:01 UTC45m
2026-07-09 GES211B - Jul 9, 19:35 UTCJul 9, 20:25 UTC50m
2026-07-09 GES211B CPT → PMI Jul 9, 08:40 UTCJul 9, 18:45 UTC10h 5m
2026-07-05 GES211B - Jul 5, 12:55 UTCJul 5, 14:55 UTC2h 0m
2026-06-26 GES211B - Jun 26, 08:10 UTCJun 26, 08:50 UTC40m
2026-06-25 GES211B - Jun 25, 13:20 UTCJun 25, 14:14 UTC55m
2026-06-23 GES211B BCN → MAD Jun 23, 12:35 UTCJun 23, 13:29 UTC55m
2026-06-22 GES211B MAD → BCN Jun 22, 13:25 UTCJun 22, 14:29 UTC1h 5m
2026-06-20 GES211B - Jun 20, 07:39 UTCJun 20, 09:05 UTC1h 25m
2026-06-12 GES211B - Jun 12, 12:00 UTCJun 12, 13:05 UTC1h 5m
2026-06-10 GES212B BCN → MAD Jun 10, 21:50 UTCJun 10, 22:40 UTC50m
2026-06-10 GES212B - Jun 10, 18:15 UTCJun 10, 18:30 UTC15m
2026-06-10 GES211B - Jun 10, 12:10 UTCJun 10, 12:35 UTC25m
2026-06-10 GES211B MAD → BCN Jun 10, 10:00 UTCJun 10, 10:50 UTC50m
2026-06-07 GES211B - Jun 7, 20:20 UTCJun 7, 21:05 UTC45m
2026-06-07 GES211B - Jun 7, 13:20 UTCJun 7, 15:30 UTC2h 10m
2026-06-06 GES212B - Jun 6, 04:15 UTCJun 6, 06:10 UTC1h 55m
2026-06-05 GES211B - Jun 5, 15:15 UTCJun 6, 00:40 UTC9h 25m
2026-05-24 GES211B - May 24, 19:15 UTCMay 25, 05:15 UTC10h 0m
2026-05-23 GES211B - May 23, 12:20 UTCMay 23, 14:45 UTC2h 25m
2026-05-22 GES212B - May 22, 17:45 UTCMay 22, 18:30 UTC45m
2026-05-17 GES211B TEB → MAD May 17, 22:40 UTCMay 18, 04:51 UTC6h 11m
2026-05-13 GES211B MAD → TEB May 13, 15:45 UTCMay 13, 23:10 UTC7h 25m
2026-05-10 GES211B XRY → MAD May 10, 11:55 UTCMay 10, 12:49 UTC55m
2026-05-10 GES211B MAD → XRY May 10, 06:50 UTCMay 10, 07:45 UTC55m
2026-05-06 GES211B - May 6, 15:50 UTCMay 6, 17:00 UTC1h 10m
2026-05-05 GES211B MAD → BCN May 5, 15:25 UTCMay 5, 16:15 UTC50m
2026-05-03 GES211B - May 3, 21:50 UTCMay 3, 22:34 UTC45m
2026-05-03 GES211B - May 3, 20:25 UTCMay 3, 21:10 UTC45m
2026-04-30 GES211B - Apr 30, 17:00 UTCApr 30, 17:40 UTC40m
2026-04-30 GES211B - Apr 30, 09:15 UTCApr 30, 09:40 UTC25m
2026-04-29 GES211B - Apr 29, 18:35 UTCApr 29, 19:35 UTC1h 0m
2026-04-29 GES211B - Apr 29, 17:01 UTCApr 29, 17:50 UTC50m
2026-04-27 GES211B - Apr 27, 16:00 UTCApr 27, 17:15 UTC1h 15m
2026-04-25 GES211B MAD → BCN Apr 25, 17:05 UTCApr 25, 17:55 UTC50m
2026-04-19 GES211B - Apr 19, 21:45 UTCApr 20, 04:30 UTC6h 45m
2026-04-17 GES211B RDU → TEB Apr 17, 20:10 UTCApr 17, 21:20 UTC1h 10m
2026-04-16 GES211B - Apr 16, 23:20 UTCApr 17, 00:15 UTC55m
2026-04-16 GES211B - Apr 16, 21:20 UTCApr 16, 23:10 UTC1h 50m
2026-04-16 GES211B - Apr 16, 15:55 UTCApr 16, 17:10 UTC1h 15m
2026-04-13 GES211B - Apr 13, 16:15 UTCApr 13, 16:45 UTC30m
2026-04-13 GES211B - Apr 13, 15:55 UTCApr 13, 16:15 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-LEB page for operator, model, and routing details .

Mode-S 343499 frequently asked

What is Mode-S code 343499?
343499 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-LEB.
Where is Mode-S 343499 registered?
Mode-S code 343499 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 343499 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 343499, octal 15032231, decimal 3,421,337.
What flights does 343499 operate?
Mode-S 343499 has broadcast 2 distinct callsigns, including GES211B, GES212B.