sensors Mode-S transponder

342699

ICAO 24-bit transponder address · allocated to Spain

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

Hex
342699
Octal
15023231
Decimal
3,417,753
Country
ES
Tail
EC-KKQ
Type
AT75
No current signal · last broadcast 18h ago
Flights observed
14
Distinct callsigns
8
Country
ES
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 342699.

Country allocation

The ICAO 24-bit address 342699 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 8 distinct

Callsign Airline Flights Last seen
SWT7888 Swiftair 2 2026-04-13
SWT7775 - 2 2026-04-13
SWT7774 - 2 2026-04-13
SWT7772 - 2 2026-04-14
SWT7771 - 2 2026-04-14
SWT7770 Swiftair 2 2026-04-14
SWT7887 - 1 2026-04-13
SWT7773 - 1 2026-04-13

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 SWT7772 - Apr 14, 08:20 UTCApr 14, 08:45 UTC25m
2026-04-14 SWT7771 - Apr 14, 07:10 UTCApr 14, 07:20 UTC10m
2026-04-14 SWT7770 IBZ → PMI Apr 14, 05:35 UTCApr 14, 06:05 UTC30m
2026-04-13 SWT7775 - Apr 13, 20:40 UTCApr 13, 21:00 UTC20m
2026-04-13 SWT7888 MAH → PMI Apr 13, 19:50 UTCApr 13, 20:00 UTC10m
2026-04-13 SWT7888 MAH → PMI Apr 13, 19:40 UTCApr 13, 20:00 UTC20m
2026-04-13 SWT7887 - Apr 13, 18:05 UTCApr 13, 18:30 UTC25m
2026-04-13 SWT7774 - Apr 13, 16:40 UTCApr 13, 17:05 UTC25m
2026-04-13 SWT7773 - Apr 13, 12:30 UTCApr 13, 12:50 UTC20m
2026-04-13 SWT7772 - Apr 13, 08:30 UTCApr 13, 08:50 UTC20m
2026-04-13 SWT7771 - Apr 13, 07:05 UTCApr 13, 07:30 UTC25m
2026-04-13 SWT7770 - Apr 13, 05:35 UTCApr 13, 05:50 UTC15m
2026-04-12 SWT7775 - Apr 12, 19:30 UTCApr 12, 20:00 UTC30m
2026-04-12 SWT7774 - Apr 12, 17:40 UTCApr 12, 18:00 UTC20m

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

Mode-S 342699 frequently asked

What is Mode-S code 342699?
342699 is an ICAO 24-bit transponder address. Allocated to Spain. Assigned to EC-KKQ.
Where is Mode-S 342699 registered?
Mode-S code 342699 is allocated to Spain (ES). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 342699 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 342699, octal 15023231, decimal 3,417,753.
What flights does 342699 operate?
Mode-S 342699 has broadcast 8 distinct callsigns, including SWT7888, SWT7775, SWT7774, SWT7772, SWT7771.