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 1d ago
Flights observed
461
Distinct callsigns
20
Country
ES
Last broadcast
1d ago

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 7 2026-05-14
VLG8JR - 6 2026-06-23
VLG69NN - 6 2026-06-23
VLG7887 - 5 2026-07-03
VLG7886 - 5 2026-07-03
VLG7575 Vueling Airlines 5 2026-05-14
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
2026-07-13 VLG21SJ - Jul 13, 14:25 UTCJul 13, 16:50 UTC2h 25m
2026-07-13 VLG8YX - Jul 13, 09:40 UTCJul 13, 12:15 UTC2h 35m
2026-07-13 VLG6614 - Jul 13, 05:31 UTCJul 13, 07:55 UTC2h 25m
2026-07-12 VLG6623 - Jul 12, 20:15 UTCJul 12, 22:45 UTC2h 30m
2026-07-12 VLG9MB - Jul 12, 17:05 UTCJul 12, 19:15 UTC2h 10m
2026-07-12 VLG3RA - Jul 12, 13:50 UTCJul 12, 15:05 UTC1h 15m
2026-07-12 VLG717X - Jul 12, 11:40 UTCJul 12, 12:40 UTC1h 0m
2026-07-12 VLG9QE - Jul 12, 08:10 UTCJul 12, 10:25 UTC2h 15m
2026-07-12 VLG8182 - Jul 12, 04:55 UTCJul 12, 06:50 UTC1h 55m
2026-07-11 VLG195P - Jul 11, 18:30 UTCJul 11, 19:50 UTC1h 20m
2026-07-11 VLG74GB - Jul 11, 16:15 UTCJul 11, 17:15 UTC1h 0m
2026-07-11 VLG5LU - Jul 11, 10:30 UTCJul 11, 14:50 UTC4h 20m
2026-07-11 VLG5TT - Jul 11, 08:05 UTCJul 11, 09:20 UTC1h 15m
2026-07-11 VLG1HY - Jul 11, 05:55 UTCJul 11, 07:00 UTC1h 5m
2026-07-10 VLG5FA - Jul 10, 20:30 UTCJul 10, 22:50 UTC2h 20m
2026-07-10 VLG9LA - Jul 10, 16:35 UTCJul 10, 19:05 UTC2h 30m
2026-07-10 VLG25FG - Jul 10, 10:30 UTCJul 10, 15:20 UTC4h 50m
2026-07-10 VLG3EL - Jul 10, 07:45 UTCJul 10, 09:00 UTC1h 15m
2026-07-09 VLG6SG - Jul 9, 18:20 UTCJul 9, 21:10 UTC2h 50m
2026-07-09 VLG13KX - Jul 9, 14:15 UTCJul 9, 17:30 UTC3h 15m
2026-07-09 VLG4DU SVQ → BCN Jul 9, 11:25 UTCJul 9, 12:45 UTC1h 20m
2026-07-09 VLG80MM ORY → SVQ Jul 9, 08:25 UTCJul 9, 10:25 UTC2h 0m
2026-07-09 VLG8LH SVQ → ORY Jul 9, 05:15 UTCJul 9, 07:10 UTC1h 55m
2026-07-08 VLG34ZC BCN → SVQ Jul 8, 20:35 UTCJul 8, 21:50 UTC1h 15m
2026-07-08 VLG15TG SVQ → BCN Jul 8, 18:00 UTCJul 8, 19:20 UTC1h 20m
2026-07-08 VLG3BC - Jul 8, 15:05 UTCJul 8, 17:00 UTC1h 55m
2026-07-08 VLG7BT - Jul 8, 12:15 UTCJul 8, 14:10 UTC1h 55m
2026-07-08 VLG40XU LGW → SVQ Jul 8, 08:50 UTCJul 8, 11:05 UTC2h 15m
2026-07-08 VLG1ZJ SVQ → LGW Jul 8, 05:10 UTCJul 8, 07:25 UTC2h 15m
2026-07-07 VLG2XU NCE → SVQ Jul 7, 19:45 UTCJul 7, 21:35 UTC1h 50m
2026-07-07 VLG2JQ SVQ → NCE Jul 7, 16:40 UTCJul 7, 18:35 UTC1h 55m
2026-07-07 VLG3FQ BCN → SVQ Jul 7, 14:30 UTCJul 7, 15:45 UTC1h 15m
2026-07-07 VLG80FZ - Jul 7, 10:10 UTCJul 7, 13:00 UTC2h 50m
2026-07-07 VLG1MH - Jul 7, 08:35 UTCJul 7, 09:00 UTC25m
2026-07-07 VLG1MH - Jul 7, 06:15 UTCJul 7, 08:00 UTC1h 45m
2026-07-06 VLG89PM - Jul 6, 20:25 UTCJul 6, 21:55 UTC1h 30m
2026-07-06 VLG75CT BCN → LHR Jul 6, 17:00 UTCJul 6, 18:55 UTC1h 55m
2026-07-06 VLG7FK - Jul 6, 14:15 UTCJul 6, 15:25 UTC1h 10m
2026-07-06 VLG5WB - Jul 6, 12:05 UTCJul 6, 13:00 UTC55m
2026-07-06 VLG23ZJ - Jul 6, 09:00 UTCJul 6, 10:45 UTC1h 45m
2026-07-06 VLG85GB BCN → BRI Jul 6, 06:05 UTCJul 6, 07:50 UTC1h 45m
2026-07-05 VLG5QY LCG → BCN Jul 5, 21:55 UTCJul 5, 23:15 UTC1h 20m
2026-07-05 VLG5UD BCN → LCG Jul 5, 19:40 UTCJul 5, 21:00 UTC1h 20m
2026-07-04 VLG7699 BCN → BCN Jul 4, 13:15 UTCJul 4, 23:35 UTC10h 20m
2026-07-04 VLG2UR BCN → BCN Jul 4, 05:35 UTCJul 4, 11:15 UTC5h 40m
2026-07-03 VLG7887 - Jul 3, 21:00 UTCJul 4, 01:20 UTC4h 20m
2026-07-03 VLG7886 BCN → DSS Jul 3, 15:05 UTCJul 3, 19:50 UTC4h 45m
2026-07-03 VLG1827 HAM → BCN Jul 3, 10:55 UTCJul 3, 13:00 UTC2h 5m
2026-07-03 VLG178Z BCN → HAM Jul 3, 07:20 UTCJul 3, 09:40 UTC2h 20m
2026-07-02 VLG2693 - Jul 2, 22:15 UTCJul 2, 23:30 UTC1h 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-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 1d ago.
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, VLG69NN, VLG7887, VLG7886.