sensors Mode-S transponder

345251

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-MLT · BOEING 787-8 Dreamliner

Hex
345251
Octal
15051121
Decimal
3,428,945
Country
ES
Tail
EC-MLT
Type
B788
No current signal · last broadcast Jul 26, 21:55 UTC
Flights observed
207
Distinct callsigns
20
Country
ES
Last broadcast
Jul 26, 21:55 UTC

Last known position

Most recent position reported by Mode-S 345251.

Country allocation

The ICAO 24-bit address 345251 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
AEA198 Air Europa 36 2026-07-21
AEA199 Air Europa 18 2026-07-20
AEA194 Air Europa 16 2026-07-26
AEA193 Air Europa 14 2026-07-26
AEA040 Air Europa 11 2026-07-24
AEA039 Air Europa 11 2026-07-24
AEA091 Air Europa 7 2026-06-20
AEA138 Air Europa 6 2026-07-04
AEA092 - 6 2026-06-21
AEA023 - 6 2026-06-22
AEA126 Air Europa 5 2026-04-16
AEA056 Air Europa 5 2026-06-11
AEA026 Air Europa 5 2026-05-28
AEA45JZ - 4 2026-07-18
AEA44EP Air Europa 4 2026-07-18
AEA084 - 4 2026-06-15
AEA064 - 4 2026-06-18
AEA025 Air Europa 4 2026-05-28
AEA137 - 3 2026-07-04
AEA122 - 3 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AEA193 MAD → BOG Jul 26, 13:50 UTCJul 26, 21:55 UTC8h 5m
2026-07-26 AEA194 BOG → MAD Jul 26, 04:10 UTCJul 26, 11:15 UTC7h 6m
2026-07-26 AEA194 BOG → MAD Jul 26, 02:25 UTCJul 26, 02:35 UTC10m
2026-07-26 AEA193 MAD → BOG Jul 26, 00:05 UTCJul 26, 00:25 UTC20m
2026-07-25 AEA193 MAD → BOG Jul 25, 15:15 UTCJul 25, 23:20 UTC8h 5m
2026-07-24 AEA040 GYE → MAD Jul 24, 07:00 UTCJul 25, 02:05 UTC19h 5m
2026-07-24 AEA039 MAD → GYE Jul 24, 00:20 UTCJul 24, 18:40 UTC18h 20m
2026-07-23 AEA039 MAD → GYE Jul 23, 23:55 UTCJul 24, 18:40 UTC18h 45m
2026-07-22 AEA119 MAD → STI Jul 22, 15:40 UTCJul 23, 10:15 UTC18h 35m
2026-07-21 AEA071 - Jul 21, 14:25 UTCJul 22, 03:05 UTC12h 40m
2026-07-21 AEA198 MDE → MAD Jul 21, 04:25 UTCJul 21, 11:25 UTC7h 0m
2026-07-20 AEA199 MAD → MDE Jul 20, 14:55 UTCJul 20, 23:20 UTC8h 25m
2026-07-20 AEA194 BOG → MAD Jul 20, 03:20 UTCJul 20, 11:25 UTC8h 5m
2026-07-20 AEA194 BOG → MAD Jul 20, 02:20 UTCJul 20, 02:35 UTC15m
2026-07-19 AEA193 - Jul 19, 14:50 UTCJul 20, 00:25 UTC9h 35m
2026-07-18 AEA198 MDE → MAD Jul 18, 21:10 UTCJul 19, 11:10 UTC14h 0m
2026-07-18 AEA199 MAD → MDE Jul 18, 14:20 UTCJul 19, 11:10 UTC20h 50m
2026-07-18 AEA199 MAD → MDE Jul 18, 14:00 UTCJul 19, 11:10 UTC21h 10m
2026-07-18 AEA45JZ BCN → MAD Jul 18, 10:10 UTCJul 18, 11:15 UTC1h 5m
2026-07-18 AEA44EP MAD → BCN Jul 18, 05:45 UTCJul 18, 06:40 UTC55m
2026-07-17 AEA040 - Jul 17, 08:20 UTCJul 18, 02:25 UTC18h 5m
2026-07-17 AEA040 - Jul 17, 07:20 UTCJul 18, 02:25 UTC19h 5m
2026-07-17 AEA039 MAD → GYE Jul 17, 00:14 UTCJul 17, 17:40 UTC17h 25m
2026-07-15 AEA040 - Jul 15, 08:20 UTCJul 16, 02:35 UTC18h 15m
2026-07-15 AEA040 - Jul 15, 07:00 UTCJul 16, 02:35 UTC19h 35m
2026-07-15 AEA039 - Jul 15, 00:20 UTCJul 15, 19:55 UTC19h 35m
2026-07-14 AEA039 - Jul 14, 23:45 UTCJul 15, 19:55 UTC20h 10m
2026-07-14 AEA9165 - Jul 14, 17:25 UTCJul 14, 19:20 UTC1h 55m
2026-07-14 AEA62PZ - Jul 14, 13:25 UTCJul 14, 15:35 UTC2h 10m
2026-07-13 AEA198 - Jul 13, 21:05 UTCJul 14, 10:40 UTC13h 35m
2026-07-13 AEA199 - Jul 13, 14:20 UTCJul 14, 10:40 UTC20h 20m
2026-07-13 AEA199 - Jul 13, 14:00 UTCJul 14, 10:40 UTC20h 40m
2026-07-12 AEA198 - Jul 12, 21:05 UTCJul 13, 10:50 UTC13h 45m
2026-07-12 AEA198 - Jul 12, 14:20 UTCJul 13, 10:50 UTC20h 30m
2026-07-12 AEA198 - Jul 12, 13:55 UTCJul 13, 10:50 UTC20h 55m
2026-07-11 AEA072 - Jul 11, 15:00 UTCJul 12, 10:15 UTC19h 15m
2026-07-09 AEA158 - Jul 9, 17:20 UTCJul 10, 03:10 UTC9h 50m
2026-07-09 AEA157 - Jul 9, 00:05 UTCJul 9, 09:15 UTC9h 10m
2026-07-08 AEA53QA - Jul 8, 18:40 UTCJul 8, 19:45 UTC1h 5m
2026-07-08 AEA11PN MAD → BCN Jul 8, 13:50 UTCJul 8, 14:45 UTC55m
2026-07-08 AEA59PJ - Jul 8, 09:25 UTCJul 8, 11:20 UTC1h 55m
2026-07-08 AEA92LU MAD → AMS Jul 8, 05:20 UTCJul 8, 07:15 UTC1h 55m
2026-07-07 AEA158 - Jul 7, 17:10 UTCJul 8, 02:50 UTC9h 40m
2026-07-06 AEA157 - Jul 6, 23:35 UTCJul 7, 08:45 UTC9h 10m
2026-07-06 AEA96LZ - Jul 6, 17:15 UTCJul 6, 19:25 UTC2h 10m
2026-07-06 AEA84SZ - Jul 6, 13:25 UTCJul 6, 15:20 UTC1h 55m
2026-07-05 AEA033 - Jul 5, 15:30 UTCJul 6, 09:40 UTC18h 10m
2026-07-04 AEA138 UIO → MAD Jul 4, 08:20 UTCJul 5, 02:40 UTC18h 20m
2026-07-04 AEA138 UIO → MAD Jul 4, 07:15 UTCJul 5, 02:40 UTC19h 25m
2026-07-04 AEA137 - Jul 4, 00:20 UTCJul 4, 19:50 UTC19h 30m

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

Mode-S 345251 frequently asked

What is Mode-S code 345251?
345251 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-MLT.
Where is Mode-S 345251 registered?
Mode-S code 345251 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 345251 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 345251, octal 15051121, decimal 3,428,945.
What flights does 345251 operate?
Mode-S 345251 has broadcast 20 distinct callsigns, including AEA198, AEA199, AEA194, AEA193, AEA040.