sensors Mode-S transponder

46C942

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-RJB · CESSNA 560XL Citation XLS

Hex
46C942
Octal
21544502
Decimal
4,639,042
Country
GR
Tail
SX-RJB
Type
C56X
No current signal · last broadcast 1d ago
Flights observed
6
Distinct callsigns
2
Country
GR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 46C942.

Country allocation

The ICAO 24-bit address 46C942 falls within the block assigned to Greece (GR) by ICAO Annex 10, Volume III. Every aircraft registered in Greece 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 2 distinct

Callsign Airline Flights Last seen
RJB201 - 4 2026-04-13
RJB202 - 2 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 RJB201 - Apr 13, 14:45 UTCApr 13, 15:35 UTC50m
2026-04-13 RJB202 - Apr 13, 11:55 UTCApr 13, 12:10 UTC15m
2026-04-13 RJB202 ALC → LBG Apr 13, 10:00 UTCApr 13, 12:10 UTC2h 10m
2026-04-13 RJB201 - Apr 13, 08:20 UTCApr 13, 08:50 UTC30m
2026-04-13 RJB201 - Apr 13, 07:55 UTCApr 13, 08:50 UTC55m
2026-04-13 RJB201 - Apr 13, 07:05 UTCApr 13, 08:15 UTC1h 10m

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 SX-RJB page for operator, model, and routing details .

Mode-S 46C942 frequently asked

What is Mode-S code 46C942?
46C942 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-RJB.
Where is Mode-S 46C942 registered?
Mode-S code 46C942 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46C942 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46C942, octal 21544502, decimal 4,639,042.
What flights does 46C942 operate?
Mode-S 46C942 has broadcast 2 distinct callsigns, including RJB201, RJB202.