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 1h ago
Flights observed
500
Distinct callsigns
20
Country
ES
Last broadcast
1h ago

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
VLG4ZR Vueling Airlines 8 2026-05-06
VLG6TP - 7 2026-06-30
VLG1VY - 7 2026-06-30
VLG795A Vueling Airlines 6 2026-05-06
VLG65PM - 6 2026-07-14
VLG574K Vueling Airlines 6 2026-05-04
VLG9CD - 5 2026-06-29
VLG88FU - 5 2026-07-01
VLG8356 - 5 2026-07-01
VLG6YG - 5 2026-07-14
VLG6CC Vueling Airlines 5 2026-05-06
VLG61RA Vueling Airlines 5 2026-05-06
VLG415M Vueling Airlines 5 2026-05-04
VLG3YJ Vueling Airlines 5 2026-04-28
VLG9ZH - 4 2026-06-29
VLG8UY - 4 2026-06-27
VLG8944 - 4 2026-06-29
VLG47AG Vueling Airlines 4 2026-05-05
VLG42AG Vueling Airlines 4 2026-05-05

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-15 VLG1ME - Jul 15, 18:20 UTCJul 15, 18:55 UTC35m
2026-07-15 VLG3ZG - Jul 15, 15:15 UTCJul 15, 17:15 UTC2h 0m
2026-07-15 VLG25AM - Jul 15, 12:05 UTCJul 15, 13:25 UTC1h 20m
2026-07-15 VLG4SG - Jul 15, 09:45 UTCJul 15, 11:00 UTC1h 15m
2026-07-15 VLG3EL - Jul 15, 07:05 UTCJul 15, 08:20 UTC1h 15m
2026-07-15 VLG10DY - Jul 15, 04:50 UTCJul 15, 06:00 UTC1h 10m
2026-07-14 VLG3287 - Jul 14, 12:20 UTCJul 14, 17:15 UTC4h 55m
2026-07-14 VLG65PM - Jul 14, 08:20 UTCJul 14, 11:05 UTC2h 45m
2026-07-14 VLG6YG - Jul 14, 04:20 UTCJul 14, 06:40 UTC2h 20m
2026-07-13 VLG4TN - Jul 13, 19:50 UTCJul 13, 21:40 UTC1h 50m
2026-07-13 VLG905D - Jul 13, 16:40 UTCJul 13, 18:35 UTC1h 55m
2026-07-13 VLG5EJ - Jul 13, 13:00 UTCJul 13, 14:10 UTC1h 10m
2026-07-13 VLG3AD - Jul 13, 10:30 UTCJul 13, 11:50 UTC1h 20m
2026-07-13 VLG5DW - Jul 13, 04:35 UTCJul 13, 09:25 UTC4h 50m
2026-07-12 VLG195P - Jul 12, 20:35 UTCJul 12, 21:55 UTC1h 20m
2026-07-12 VLG74GB - Jul 12, 18:15 UTCJul 12, 19:25 UTC1h 10m
2026-07-12 VLG5JN - Jul 12, 12:20 UTCJul 12, 17:15 UTC4h 55m
2026-07-12 VLG65PM - Jul 12, 08:10 UTCJul 12, 10:50 UTC2h 40m
2026-07-12 VLG6YG - Jul 12, 04:30 UTCJul 12, 06:50 UTC2h 20m
2026-07-11 VLG356T - Jul 11, 19:45 UTCJul 11, 22:10 UTC2h 25m
2026-07-11 VLG9PL - Jul 11, 16:10 UTCJul 11, 18:20 UTC2h 10m
2026-07-11 VLG8YX - Jul 11, 09:00 UTCJul 11, 11:25 UTC2h 25m
2026-07-11 VLG6614 - Jul 11, 05:25 UTCJul 11, 07:50 UTC2h 25m
2026-07-10 VLG7MH - Jul 10, 21:55 UTCJul 10, 23:15 UTC1h 20m
2026-07-10 VLG18AM LGW → BCN Jul 10, 18:25 UTCJul 10, 20:10 UTC1h 45m
2026-07-10 VLG9GE BCN → LGW Jul 10, 15:10 UTCJul 10, 17:10 UTC2h 0m
2026-07-10 VLG1JK - Jul 10, 12:25 UTCJul 10, 13:25 UTC1h 0m
2026-07-10 VLG6XK - Jul 10, 10:05 UTCJul 10, 11:05 UTC1h 0m
2026-07-10 VLG29XA - Jul 10, 07:20 UTCJul 10, 08:40 UTC1h 20m
2026-07-10 VLG69DR - Jul 10, 04:35 UTCJul 10, 05:55 UTC1h 20m
2026-07-09 VLG61BB - Jul 9, 20:10 UTCJul 9, 21:40 UTC1h 30m
2026-07-09 VLG44WY - Jul 9, 17:40 UTCJul 9, 19:05 UTC1h 25m
2026-07-09 VLG8NW - Jul 9, 14:20 UTCJul 9, 16:05 UTC1h 45m
2026-07-09 VLG8QA - Jul 9, 11:40 UTCJul 9, 13:20 UTC1h 40m
2026-07-09 VLG8AZ - Jul 9, 08:15 UTCJul 9, 09:50 UTC1h 35m
2026-07-09 VLG84XR - Jul 9, 05:35 UTCJul 9, 07:00 UTC1h 25m
2026-07-08 VLG5KB - Jul 8, 19:10 UTCJul 8, 20:50 UTC1h 40m
2026-07-08 VLG3HA BCN → BRU Jul 8, 16:30 UTCJul 8, 18:15 UTC1h 45m
2026-07-08 VLG7NU BCN → BCN Jul 8, 08:25 UTCJul 8, 15:10 UTC6h 45m
2026-07-08 VLG2213 - Jul 8, 05:45 UTCJul 8, 07:05 UTC1h 20m
2026-07-08 VLG2213 SVQ → SVQ Jul 8, 05:20 UTCJul 8, 05:30 UTC10m
2026-07-07 VLG652J - Jul 7, 19:40 UTCJul 7, 20:20 UTC40m
2026-07-07 VLG9TB - Jul 7, 15:30 UTCJul 7, 17:25 UTC1h 55m
2026-07-07 VLG5NY IBZ → SVQ Jul 7, 13:00 UTCJul 7, 14:05 UTC1h 5m
2026-07-07 VLG16MK SVQ → IBZ Jul 7, 10:55 UTCJul 7, 12:00 UTC1h 5m
2026-07-07 VLG4GW - Jul 7, 08:05 UTCJul 7, 09:55 UTC1h 50m
2026-07-07 VLG35XX - Jul 7, 04:55 UTCJul 7, 06:50 UTC1h 55m
2026-07-06 VLG652J - Jul 6, 20:20 UTCJul 6, 22:10 UTC1h 50m
2026-07-06 VLG9TB - Jul 6, 17:15 UTCJul 6, 17:55 UTC40m
2026-07-06 VLG5NY IBZ → SVQ Jul 6, 15:25 UTCJul 6, 16:25 UTC1h 0m

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 1h ago.
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, VLG4ZR, VLG6TP, VLG1VY, VLG795A.