Apparatus

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sensors Mode-S transponder

344557

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-MCU · AIRBUS A-320

Hex
344557
Octal
15042527
Decimal
3,425,623
Country
ES
Tail
EC-MCU
Type
A320
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
524
Distinct callsigns
20
Country
ES
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S 344557.

Country allocation

The ICAO 24-bit address 344557 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 20 distinct

Callsign Airline Flights Last seen
VLG7574 Vueling Airlines 8 2026-07-18
VLG8JR - 6 2026-06-23
VLG7887 - 6 2026-07-23
VLG7886 - 6 2026-07-23
VLG7575 Vueling Airlines 6 2026-07-18
VLG69NN - 6 2026-06-23
VLG1RZ - 5 2026-07-01
VLG7CH - 4 2026-06-23
VLG17UR - 4 2026-06-23
VLG85GB - 3 2026-07-06
VLG4YF Vueling Airlines 3 2026-06-30
VLG4XL - 3 2026-06-29
VLG4JU - 3 2026-06-30
VLG29WC Vueling Airlines 3 2026-05-25
VLG23ZJ - 3 2026-07-06
VLG22PD Vueling Airlines 3 2026-04-14
VLG1MH - 3 2026-07-07
VLG9RN - 2 2026-06-26
VLG9PP - 2 2026-06-23
VLG9HV Vueling Airlines 2 2026-04-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VLG7299 LGW → BIO Jul 26, 19:20 UTCJul 26, 20:30 UTC1h 10m
2026-07-26 VLG615Q BIO → LGW Jul 26, 16:45 UTCJul 26, 18:15 UTC1h 30m
2026-07-26 VLG74XH AGP → BIO Jul 26, 13:55 UTCJul 26, 15:00 UTC1h 5m
2026-07-26 VLG1QC BCN → MAH Jul 26, 11:40 UTCJul 26, 12:40 UTC1h 0m
2026-07-26 VLG2621 XRY → BIO Jul 26, 07:15 UTCJul 26, 08:30 UTC1h 15m
2026-07-26 VLG8HR BIO → XRY Jul 26, 05:20 UTCJul 26, 06:20 UTC1h 0m
2026-07-25 VLG7CJ PRG → BIO Jul 25, 18:35 UTCJul 25, 20:35 UTC2h 0m
2026-07-25 VLG39WU BIO → PRG Jul 25, 15:10 UTCJul 25, 17:35 UTC2h 25m
2026-07-25 VLG37FQ BRU → BIO Jul 25, 11:55 UTCJul 25, 13:15 UTC1h 20m
2026-07-25 VLG7QT BIO → BRU Jul 25, 09:30 UTCJul 25, 11:00 UTC1h 30m
2026-07-25 VLG63LZ BCN → BIO Jul 25, 07:30 UTCJul 25, 08:10 UTC40m
2026-07-24 VLG7367 TNG → BCN Jul 24, 20:50 UTCJul 24, 22:05 UTC1h 15m
2026-07-24 VLG960V BCN → TNG Jul 24, 18:25 UTCJul 24, 20:00 UTC1h 35m
2026-07-24 VLG6CW PMI → BCN Jul 24, 16:45 UTCJul 24, 17:15 UTC30m
2026-07-24 VLG5VJ BCN → PMI Jul 24, 15:15 UTCJul 24, 15:40 UTC25m
2026-07-24 VLG36DV LEI → BCN Jul 24, 12:40 UTCJul 24, 13:45 UTC1h 5m
2026-07-24 VLG9UZ LPA → BCN Jul 24, 10:40 UTCJul 24, 11:50 UTC1h 10m
2026-07-24 VLG4TG ZRH → BCN Jul 24, 07:50 UTCJul 24, 09:20 UTC1h 30m
2026-07-24 VLG6246 BCN → ZRH Jul 24, 05:00 UTCJul 24, 06:20 UTC1h 20m
2026-07-23 VLG7887 - Jul 23, 20:45 UTCJul 24, 01:00 UTC4h 15m
2026-07-23 VLG7886 - Jul 23, 14:45 UTCJul 23, 19:25 UTC4h 40m
2026-07-23 VLG8EC BCN → PMI Jul 23, 11:15 UTCJul 23, 13:05 UTC1h 50m
2026-07-23 VLG5HR - Jul 23, 08:25 UTCJul 23, 09:55 UTC1h 30m
2026-07-23 VLG3VC - Jul 23, 06:40 UTCJul 23, 07:20 UTC40m
2026-07-23 VLG8RK BCN → SDR Jul 23, 05:10 UTCJul 23, 05:40 UTC30m
2026-07-22 VLG6RR GVA → BCN Jul 22, 19:35 UTCJul 22, 20:50 UTC1h 15m
2026-07-22 VLG202P AMS → BCN Jul 22, 17:10 UTCJul 22, 18:30 UTC1h 20m
2026-07-22 VLG80FZ FUE → BCN Jul 22, 10:25 UTCJul 22, 12:00 UTC1h 35m
2026-07-21 VLG4TR LGW → BCN Jul 21, 20:55 UTCJul 21, 21:25 UTC30m
2026-07-21 VLG128E BCN → IBZ Jul 21, 19:25 UTCJul 21, 20:00 UTC35m
2026-07-21 VLG12QL MLA → BCN Jul 21, 15:40 UTCJul 21, 17:45 UTC2h 5m
2026-07-21 VLG50ER BCN → MLA Jul 21, 12:20 UTCJul 21, 13:55 UTC1h 35m
2026-07-20 VLG865W SPU → BCN Jul 20, 20:10 UTCJul 20, 22:10 UTC2h 0m
2026-07-20 VLG2HL - Jul 20, 17:30 UTCJul 20, 18:55 UTC1h 25m
2026-07-20 VLG36TT IBZ → BCN Jul 20, 14:45 UTCJul 20, 15:20 UTC35m
2026-07-20 VLG3WW MXP → IBZ Jul 20, 12:10 UTCJul 20, 13:40 UTC1h 30m
2026-07-20 VLG6VQ IBZ → MXP Jul 20, 09:20 UTCJul 20, 10:50 UTC1h 30m
2026-07-20 VLG3YJ BCN → IBZ Jul 20, 07:05 UTCJul 20, 07:40 UTC35m
2026-07-19 VLG29VG IBZ → BCN Jul 19, 19:10 UTCJul 19, 19:45 UTC35m
2026-07-19 VLG7JU BCN → IBZ Jul 19, 17:40 UTCJul 19, 18:15 UTC35m
2026-07-19 VLG12QL MLA → BCN Jul 19, 14:25 UTCJul 19, 16:25 UTC2h 0m
2026-07-19 VLG50ER BCN → MLA Jul 19, 11:35 UTCJul 19, 13:15 UTC1h 40m
2026-07-19 VLG1QF - Jul 19, 09:45 UTCJul 19, 10:15 UTC30m
2026-07-19 VLG82EF - Jul 19, 07:55 UTCJul 19, 08:25 UTC30m
2026-07-18 VLG7575 BJL → BCN Jul 18, 20:10 UTCJul 19, 00:25 UTC4h 15m
2026-07-18 VLG7574 BCN → BJL Jul 18, 14:10 UTCJul 18, 18:50 UTC4h 40m
2026-07-18 VLG12PY - Jul 18, 09:25 UTCJul 18, 12:10 UTC2h 45m
2026-07-18 VLG6FK BCN → LPA Jul 18, 05:15 UTCJul 18, 08:00 UTC2h 45m
2026-07-17 VLG1313 BCN → ALC Jul 17, 22:29 UTCJul 17, 23:10 UTC40m
2026-07-17 VLG432C BCN → ALC Jul 17, 20:25 UTCJul 17, 21:10 UTC45m

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

Mode-S 344557 frequently asked

What is Mode-S code 344557?
344557 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-MCU.
Where is Mode-S 344557 registered?
Mode-S code 344557 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 344557 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 344557, octal 15042527, decimal 3,425,623.
What flights does 344557 operate?
Mode-S 344557 has broadcast 20 distinct callsigns, including VLG7574, VLG8JR, VLG7887, VLG7886, VLG7575.