Apparatus

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sensors Mode-S transponder

3451D5

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-MKO · AIRBUS A-320

Hex
3451D5
Octal
15050725
Decimal
3,428,821
Country
ES
Tail
EC-MKO
Type
A320
No current signal · last broadcast Jul 26, 20:30 UTC
Flights observed
553
Distinct callsigns
20
Country
ES
Last broadcast
Jul 26, 20:30 UTC

Last known position

Most recent position reported by Mode-S 3451D5.

Country allocation

The ICAO 24-bit address 3451D5 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
VLG27FJ Vueling Airlines 9 2026-05-06
VLG65PM Vueling Airlines 8 2026-07-18
VLG4ZR Vueling Airlines 8 2026-05-06
VLG6YG Vueling Airlines 7 2026-07-18
VLG6TP - 7 2026-06-30
VLG1VY - 7 2026-06-30
VLG795A Vueling Airlines 6 2026-05-06
VLG574K Vueling Airlines 6 2026-05-04
VLG9CD - 5 2026-06-29
VLG88FU - 5 2026-07-01
VLG8356 - 5 2026-07-01
VLG6CC Vueling Airlines 5 2026-05-06
VLG64SM - 5 2026-07-20
VLG61RA Vueling Airlines 5 2026-05-06
VLG415M Vueling Airlines 5 2026-05-04
VLG3YJ Vueling Airlines 5 2026-04-28
VLG21SJ Vueling Airlines 5 2026-07-20
VLG9ZH - 4 2026-06-29
VLG8UY - 4 2026-06-27
VLG8944 - 4 2026-06-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 VLG66VZ BCN → MAH Jul 26, 20:05 UTCJul 26, 20:30 UTC25m
2026-07-26 VLG2CU LIS → BCN Jul 26, 17:05 UTCJul 26, 18:35 UTC1h 30m
2026-07-26 VLG9QY BCN → AGA Jul 26, 14:25 UTCJul 26, 15:55 UTC1h 30m
2026-07-26 VLG9ZE FAO → BCN Jul 26, 11:20 UTCJul 26, 13:00 UTC1h 40m
2026-07-26 VLG8484 BCN → FAO Jul 26, 08:40 UTCJul 26, 10:05 UTC1h 25m
2026-07-26 VLG6CR PMI → BCN Jul 26, 06:15 UTCJul 26, 06:45 UTC31m
2026-07-26 VLG74AM BCN → PMI Jul 26, 04:45 UTCJul 26, 05:15 UTC30m
2026-07-25 VLG1887 BER → BCN Jul 25, 21:15 UTCJul 25, 23:25 UTC2h 10m
2026-07-25 VLG23BJ BCN → BER Jul 25, 17:50 UTCJul 25, 20:15 UTC2h 25m
2026-07-25 VLG7ZB IBZ → BCN Jul 25, 14:30 UTCJul 25, 15:05 UTC35m
2026-07-25 VLG5LW BCN → IBZ Jul 25, 11:55 UTCJul 25, 12:30 UTC35m
2026-07-25 VLG4XL - Jul 25, 08:25 UTCJul 25, 10:05 UTC1h 40m
2026-07-25 VLG6RL BCN → LGW Jul 25, 05:20 UTCJul 25, 07:10 UTC1h 50m
2026-07-24 VLG4TR LGW → BCN Jul 24, 20:55 UTCJul 24, 21:35 UTC40m
2026-07-24 VLG128E BCN → IBZ Jul 24, 19:15 UTCJul 24, 19:50 UTC35m
2026-07-24 VLG21MP MXP → BCN Jul 24, 15:05 UTCJul 24, 16:25 UTC1h 20m
2026-07-24 VLG6NZ BCN → MXP Jul 24, 12:40 UTCJul 24, 13:50 UTC1h 10m
2026-07-23 VLG4VL AGP → BCN Jul 23, 13:50 UTCJul 23, 14:55 UTC1h 5m
2026-07-23 VLG55MZ BRU → AGP Jul 23, 09:20 UTCJul 23, 11:40 UTC2h 20m
2026-07-23 VLG9GD AGP → BRU Jul 23, 05:40 UTCJul 23, 08:10 UTC2h 30m
2026-07-22 VLG5ZD LPA → AGP Jul 22, 16:30 UTCJul 22, 21:30 UTC5h 0m
2026-07-22 VLG3RA PMI → AGP Jul 22, 14:00 UTCJul 22, 15:05 UTC1h 5m
2026-07-22 VLG717X AGP → PMI Jul 22, 11:45 UTCJul 22, 13:15 UTC1h 30m
2026-07-22 VLG8182 - Jul 22, 04:55 UTCJul 22, 05:25 UTC30m
2026-07-21 VLG55MZ BRU → AGP Jul 21, 21:20 UTCJul 21, 23:40 UTC2h 20m
2026-07-21 VLG9GD AGP → BRU Jul 21, 17:55 UTCJul 21, 20:15 UTC2h 20m
2026-07-21 VLG5LU - Jul 21, 11:00 UTCJul 21, 15:15 UTC4h 15m
2026-07-21 VLG64JP PMI → AGP Jul 21, 08:40 UTCJul 21, 09:50 UTC1h 10m
2026-07-21 VLG1RM BCN → PRG Jul 21, 06:20 UTCJul 21, 07:20 UTC1h 0m
2026-07-20 VLG64SM - Jul 20, 17:15 UTCJul 20, 19:55 UTC2h 40m
2026-07-20 VLG21SJ AGP → AMS Jul 20, 13:20 UTCJul 20, 16:00 UTC2h 40m
2026-07-20 VLG8YX LGW → AGP Jul 20, 09:25 UTCJul 20, 11:40 UTC2h 15m
2026-07-20 VLG6614 AGP → LGW Jul 20, 05:10 UTCJul 20, 07:35 UTC2h 25m
2026-07-19 VLG5FA - Jul 19, 19:20 UTCJul 19, 21:35 UTC2h 15m
2026-07-19 VLG9LA - Jul 19, 15:20 UTCJul 19, 17:50 UTC2h 30m
2026-07-19 VLG9DH - Jul 19, 12:35 UTCJul 19, 13:15 UTC40m
2026-07-19 VLG19YH - Jul 19, 09:00 UTCJul 19, 09:50 UTC50m
2026-07-19 VLG5TT - Jul 19, 06:45 UTCJul 19, 07:55 UTC1h 10m
2026-07-19 VLG1HY - Jul 19, 04:25 UTCJul 19, 05:35 UTC1h 10m
2026-07-18 VLG3EL - Jul 18, 20:35 UTCJul 18, 21:50 UTC1h 15m
2026-07-18 VLG10DY - Jul 18, 18:15 UTCJul 18, 19:25 UTC1h 10m
2026-07-18 VLG5JN - Jul 18, 15:30 UTCJul 18, 17:15 UTC1h 45m
2026-07-18 VLG3QN AGP → LPA Jul 18, 12:20 UTCJul 18, 13:05 UTC45m
2026-07-18 VLG65PM AMS → AGP Jul 18, 08:10 UTCJul 18, 10:45 UTC2h 35m
2026-07-18 VLG6YG AGP → AMS Jul 18, 04:25 UTCJul 18, 06:50 UTC2h 25m
2026-07-17 VLG4TN TFN → AGP Jul 17, 20:50 UTCJul 17, 22:35 UTC1h 45m
2026-07-17 VLG905D - Jul 17, 17:40 UTCJul 17, 19:30 UTC1h 50m
2026-07-17 VLG19YH - Jul 17, 11:04 UTCJul 17, 15:35 UTC4h 30m
2026-07-17 VLG5DW - Jul 17, 04:44 UTCJul 17, 09:50 UTC5h 5m
2026-07-16 VLG64SM - Jul 16, 17:10 UTCJul 16, 19:55 UTC2h 45m

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

Mode-S 3451D5 frequently asked

What is Mode-S code 3451D5?
3451D5 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-MKO.
Where is Mode-S 3451D5 registered?
Mode-S code 3451D5 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 3451D5 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 3451D5, octal 15050725, decimal 3,428,821.
What flights does 3451D5 operate?
Mode-S 3451D5 has broadcast 20 distinct callsigns, including VLG27FJ, VLG65PM, VLG4ZR, VLG6YG, VLG6TP.