sensors Mode-S transponder

4D2341

ICAO 24-bit transponder address · allocated to Malta

Currently assigned to 9H-ZTB · AIRBUS A-321

Hex
4D2341
Octal
23221501
Decimal
5,055,297
Country
MT
Tail
9H-ZTB
Type
A321
Broadcasting now · callsign BCS2882 · 3,200 ft
Flights observed
4
Distinct callsigns
3
Country
MT
Last broadcast
22h ago

Current position

4D2341 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4D2341 falls within the block assigned to Malta (MT) by ICAO Annex 10, Volume III. Every aircraft registered in Malta 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 3 distinct

Callsign Airline Flights Last seen
BCS5QC - 2 2026-04-13
BCS2882 European Air Transport 1 2026-04-14
BCS1RF - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 BCS2882 LEJ → DUB Apr 14, 05:15 UTCApr 14, 05:30 UTC15m
2026-04-13 BCS1RF DUB → LEJ Apr 13, 20:05 UTCApr 13, 21:50 UTC1h 45m
2026-04-13 BCS5QC - Apr 13, 00:20 UTCApr 13, 00:50 UTC30m
2026-04-12 BCS5QC - Apr 12, 23:55 UTCApr 13, 00:50 UTC55m

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 9H-ZTB page for operator, model, and routing details .

Mode-S 4D2341 frequently asked

What is Mode-S code 4D2341?
4D2341 is an ICAO 24-bit transponder address. Allocated to Malta. Assigned to 9H-ZTB.
Where is Mode-S 4D2341 registered?
Mode-S code 4D2341 is allocated to Malta (MT). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4D2341 broadcasting right now?
Yes. Mode-S 4D2341 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4D2341, octal 23221501, decimal 5,055,297.
What flights does 4D2341 operate?
Mode-S 4D2341 has broadcast 3 distinct callsigns, including BCS5QC, BCS2882, BCS1RF.