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sensors Mode-S transponder

345287

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-MMS · AIRBUS HELICOPTERS EC-135/635

Hex
345287
Octal
15051207
Decimal
3,428,999
Country
ES
Tail
EC-MMS
Type
EC35
No current signal · last broadcast 17h ago
Flights observed
138
Distinct callsigns
1
Country
ES
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 345287.

Country allocation

The ICAO 24-bit address 345287 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 1 distinct

Callsign Airline Flights Last seen
MEECMMS - 138 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 MEECMMS - Jul 13, 12:25 UTCJul 13, 13:10 UTC45m
2026-07-13 MEECMMS - Jul 13, 11:30 UTCJul 13, 11:40 UTC10m
2026-07-12 MEECMMS - Jul 12, 18:40 UTCJul 12, 19:01 UTC20m
2026-07-12 MEECMMS - Jul 12, 16:55 UTCJul 12, 17:35 UTC40m
2026-07-12 MEECMMS - Jul 12, 14:35 UTCJul 12, 15:35 UTC1h 0m
2026-07-09 MEECMMS - Jul 9, 17:10 UTCJul 9, 17:35 UTC25m
2026-07-07 MEECMMS - Jul 7, 10:00 UTCJul 7, 10:20 UTC20m
2026-07-07 MEECMMS - Jul 7, 08:55 UTCJul 7, 09:30 UTC35m
2026-07-05 MEECMMS - Jul 5, 08:10 UTCJul 5, 08:30 UTC20m
2026-07-04 MEECMMS - Jul 4, 19:05 UTCJul 4, 19:35 UTC30m
2026-07-04 MEECMMS - Jul 4, 16:50 UTCJul 4, 17:05 UTC15m
2026-07-04 MEECMMS - Jul 4, 14:10 UTCJul 4, 14:40 UTC30m
2026-07-04 MEECMMS - Jul 4, 12:30 UTCJul 4, 12:50 UTC20m
2026-07-03 MEECMMS - Jul 3, 10:30 UTCJul 3, 11:20 UTC50m
2026-07-02 MEECMMS - Jul 2, 09:20 UTCJul 2, 09:40 UTC20m
2026-07-02 MEECMMS - Jul 2, 08:05 UTCJul 2, 08:25 UTC20m
2026-07-01 MEECMMS - Jul 1, 15:40 UTCJul 1, 16:10 UTC30m
2026-07-01 MEECMMS - Jul 1, 14:55 UTCJul 1, 15:05 UTC10m
2026-06-24 MEECMMS - Jun 24, 16:19 UTCJun 24, 17:05 UTC45m
2026-06-23 MEECMMS - Jun 23, 14:19 UTCJun 23, 14:35 UTC15m
2026-06-23 MEECMMS - Jun 23, 13:05 UTCJun 23, 13:34 UTC30m
2026-06-22 MEECMMS - Jun 22, 12:30 UTCJun 22, 12:44 UTC15m
2026-06-22 MEECMMS - Jun 22, 11:14 UTCJun 22, 11:54 UTC40m
2026-06-20 MEECMMS - Jun 20, 17:04 UTCJun 20, 17:34 UTC30m
2026-06-20 MEECMMS - Jun 20, 12:45 UTCJun 20, 13:09 UTC25m
2026-06-20 MEECMMS - Jun 20, 07:14 UTCJun 20, 08:09 UTC55m
2026-06-09 MEECMMS - Jun 9, 07:50 UTCJun 9, 08:10 UTC20m
2026-06-08 MEECMMS - Jun 8, 18:45 UTCJun 8, 19:35 UTC50m
2026-06-08 MEECMMS - Jun 8, 08:20 UTCJun 8, 10:10 UTC1h 50m
2026-06-07 MEECMMS - Jun 7, 13:55 UTCJun 7, 14:30 UTC35m
2026-06-07 MEECMMS - Jun 7, 12:55 UTCJun 7, 13:20 UTC25m
2026-06-06 MEECMMS - Jun 6, 16:34 UTCJun 6, 17:15 UTC40m
2026-06-05 MEECMMS - Jun 5, 08:20 UTCJun 5, 08:40 UTC20m
2026-06-04 MEECMMS - Jun 4, 19:15 UTCJun 4, 19:25 UTC10m
2026-06-03 MEECMMS - Jun 3, 07:45 UTCJun 3, 08:00 UTC15m
2026-06-02 MEECMMS - Jun 2, 10:35 UTCJun 2, 10:50 UTC15m
2026-06-02 MEECMMS - Jun 2, 09:40 UTCJun 2, 09:50 UTC10m
2026-06-02 MEECMMS - Jun 2, 08:45 UTCJun 2, 08:55 UTC10m
2026-05-30 MEECMMS - May 30, 16:35 UTCMay 30, 16:50 UTC15m
2026-05-30 MEECMMS - May 30, 15:05 UTCMay 30, 15:10 UTC5m
2026-05-30 MEECMMS - May 30, 14:10 UTCMay 30, 14:20 UTC10m
2026-05-28 MEECMMS - May 28, 11:30 UTCMay 28, 11:40 UTC10m
2026-05-23 MEECMMS - May 23, 14:00 UTCMay 23, 14:20 UTC20m
2026-05-23 MEECMMS - May 23, 13:15 UTCMay 23, 13:25 UTC10m
2026-05-23 MEECMMS - May 23, 12:10 UTCMay 23, 12:30 UTC20m
2026-05-20 MEECMMS - May 20, 13:30 UTCMay 20, 13:45 UTC15m
2026-05-20 MEECMMS - May 20, 12:05 UTCMay 20, 12:40 UTC35m
2026-05-19 MEECMMS - May 19, 16:20 UTCMay 19, 16:40 UTC20m
2026-05-19 MEECMMS - May 19, 14:40 UTCMay 19, 14:50 UTC10m
2026-05-18 MEECMMS - May 18, 13:00 UTCMay 18, 13:30 UTC30m

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

Mode-S 345287 frequently asked

What is Mode-S code 345287?
345287 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-MMS.
Where is Mode-S 345287 registered?
Mode-S code 345287 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 345287 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 345287, octal 15051207, decimal 3,428,999.
What flights does 345287 operate?
Mode-S 345287 has broadcast 1 distinct callsign, including MEECMMS.