Apparatus

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sensors Mode-S transponder

344647

ICAO 24-bit transponder address · allocated to Spain

Currently assigned to EC-MEC · ATR-72-500

Hex
344647
Octal
15043107
Decimal
3,425,863
Country
ES
Tail
EC-MEC
Type
AT75
No current signal · last broadcast 18h ago
Flights observed
107
Distinct callsigns
20
Country
ES
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 344647.

Country allocation

The ICAO 24-bit address 344647 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
SWT103 - 15 2026-07-04
SWT101 - 15 2026-07-04
SWT104 - 14 2026-07-03
SWT8756 - 8 2026-06-16
SWT8755 - 8 2026-06-16
SWT223 - 7 2026-06-23
SWT221 - 7 2026-06-23
SWT224 - 6 2026-06-23
SWT222 - 6 2026-06-23
SWT220 - 6 2026-06-23
SWT650P - 2 2026-04-25
SWT213P - 2 2026-06-15
SWT184 Swiftair 2 2026-05-19
SWT102 - 2 2026-07-03
SWTMNTO - 1 2026-06-19
SWT930 - 1 2026-04-29
SWT910P Swiftair 1 2026-04-27
SWT875S - 1 2026-06-17
SWT221P - 1 2026-06-22
ECMEC - 1 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-04 SWT103 - Jul 4, 05:50 UTCJul 4, 06:20 UTC30m
2026-07-04 SWT101 - Jul 4, 02:35 UTCJul 4, 04:20 UTC1h 45m
2026-07-03 SWT102 - Jul 3, 20:25 UTCJul 3, 21:45 UTC1h 20m
2026-07-03 SWT104 - Jul 3, 18:40 UTCJul 3, 19:05 UTC25m
2026-07-03 SWT103 - Jul 3, 05:25 UTCJul 3, 05:50 UTC25m
2026-07-03 SWT101 - Jul 3, 02:20 UTCJul 3, 03:45 UTC1h 25m
2026-07-02 SWT104 - Jul 2, 20:20 UTCJul 2, 21:35 UTC1h 15m
2026-07-02 SWT103 - Jul 2, 05:05 UTCJul 2, 05:35 UTC30m
2026-07-02 SWT101 - Jul 2, 02:20 UTCJul 2, 03:45 UTC1h 25m
2026-07-01 SWT104 - Jul 1, 20:15 UTCJul 1, 21:30 UTC1h 15m
2026-07-01 SWT103 - Jul 1, 05:10 UTCJul 1, 05:30 UTC20m
2026-07-01 SWT101 - Jul 1, 02:25 UTCJul 1, 03:50 UTC1h 25m
2026-06-30 SWT104 IBZ → MAD Jun 30, 20:20 UTCJun 30, 21:40 UTC1h 20m
2026-06-30 SWT103 - Jun 30, 05:05 UTCJun 30, 05:35 UTC30m
2026-06-30 SWT101 - Jun 30, 02:20 UTCJun 30, 03:40 UTC1h 20m
2026-06-29 SWT104 IBZ → MAD Jun 29, 20:24 UTCJun 29, 21:39 UTC1h 15m
2026-06-27 SWT103 - Jun 27, 05:04 UTCJun 27, 05:35 UTC30m
2026-06-27 SWT101 - Jun 27, 02:20 UTCJun 27, 03:49 UTC1h 30m
2026-06-25 SWT104 IBZ → MAD Jun 25, 20:25 UTCJun 25, 21:44 UTC1h 20m
2026-06-25 SWT103 - Jun 25, 05:05 UTCJun 25, 05:35 UTC30m
2026-06-25 SWT101 - Jun 25, 02:19 UTCJun 25, 03:40 UTC1h 20m
2026-06-24 SWT104 IBZ → MAD Jun 24, 20:24 UTCJun 24, 21:40 UTC1h 15m
2026-06-24 SWT103 - Jun 24, 05:20 UTCJun 24, 05:44 UTC25m
2026-06-24 SWT101 - Jun 24, 02:20 UTCJun 24, 03:44 UTC1h 25m
2026-06-23 SWT223 - Jun 23, 20:19 UTCJun 23, 21:39 UTC1h 20m
2026-06-23 SWT221 - Jun 23, 18:34 UTCJun 23, 18:55 UTC20m
2026-06-23 SWT222 - Jun 23, 06:15 UTCJun 23, 06:44 UTC30m
2026-06-23 SWT220 - Jun 23, 03:45 UTCJun 23, 04:19 UTC35m
2026-06-23 SWT224 MAD → BCN Jun 23, 00:35 UTCJun 23, 01:50 UTC1h 15m
2026-06-22 SWT223 - Jun 22, 20:19 UTCJun 22, 21:54 UTC1h 35m
2026-06-22 SWT221 - Jun 22, 18:44 UTCJun 22, 19:05 UTC20m
2026-06-22 SWT221P BCN → MAH Jun 22, 17:04 UTCJun 22, 17:44 UTC40m
2026-06-20 1904TEST BCN → BCN Jun 20, 10:44 UTCJun 20, 10:55 UTC10m
2026-06-19 ECMEC BCN → BCN Jun 19, 16:19 UTCJun 19, 16:55 UTC35m
2026-06-19 SWTMNTO BCN → BCN Jun 19, 16:04 UTCJun 19, 16:09 UTC5m
2026-06-17 SWT875S BCN → BCN Jun 17, 23:40 UTCJun 17, 23:55 UTC15m
2026-06-16 SWT8756 - Jun 16, 16:20 UTCJun 16, 17:35 UTC1h 15m
2026-06-16 SWT8755 - Jun 16, 07:30 UTCJun 16, 08:39 UTC1h 10m
2026-06-15 SWT8756 - Jun 15, 17:30 UTCJun 15, 18:50 UTC1h 20m
2026-06-15 SWT8755 - Jun 15, 07:29 UTCJun 15, 08:29 UTC1h 0m
2026-06-15 SWT213P - Jun 15, 03:24 UTCJun 15, 04:40 UTC1h 15m
2026-06-13 SWT8756 - Jun 13, 16:35 UTCJun 13, 18:10 UTC1h 35m
2026-06-13 SWT8755 - Jun 13, 06:35 UTCJun 13, 07:40 UTC1h 5m
2026-06-12 SWT223 PMI → BCN Jun 12, 21:15 UTCJun 12, 21:55 UTC40m
2026-06-12 SWT221 - Jun 12, 18:20 UTCJun 12, 18:40 UTC20m
2026-06-12 SWT222 PMI → MAH Jun 12, 05:25 UTCJun 12, 05:50 UTC25m
2026-06-12 SWT220 BCN → PMI Jun 12, 03:30 UTCJun 12, 04:00 UTC30m
2026-06-12 SWT224 - Jun 12, 00:40 UTCJun 12, 01:50 UTC1h 10m
2026-06-11 SWT104 IBZ → PMI Jun 11, 20:25 UTCJun 11, 21:40 UTC1h 15m
2026-06-11 SWT103 PMI → IBZ Jun 11, 05:05 UTCJun 11, 05:40 UTC35m

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

Mode-S 344647 frequently asked

What is Mode-S code 344647?
344647 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-MEC.
Where is Mode-S 344647 registered?
Mode-S code 344647 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 344647 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 344647, octal 15043107, decimal 3,425,863.
What flights does 344647 operate?
Mode-S 344647 has broadcast 20 distinct callsigns, including SWT103, SWT101, SWT104, SWT8756, SWT8755.