sensors Mode-S transponder

46A193

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-HLS · ROBINSON R-66

Hex
46A193
Octal
21520623
Decimal
4,628,883
Country
GR
Tail
SX-HLS
Type
R66
No current signal · last broadcast 12h ago
Flights observed
6
Distinct callsigns
1
Country
GR
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 46A193.

Country allocation

The ICAO 24-bit address 46A193 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 1 distinct

Callsign Airline Flights Last seen
SXHLS - 6 2026-04-14

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-14 SXHLS - Apr 14, 10:35 UTCApr 14, 10:50 UTC15m
2026-04-14 SXHLS - Apr 14, 09:10 UTCApr 14, 09:35 UTC25m
2026-04-14 SXHLS - Apr 14, 07:50 UTCApr 14, 08:30 UTC40m
2026-04-13 SXHLS - Apr 13, 16:15 UTCApr 13, 16:45 UTC30m
2026-04-13 SXHLS - Apr 13, 16:00 UTCApr 13, 16:15 UTC15m
2026-04-13 SXHLS - Apr 13, 05:35 UTCApr 13, 07:25 UTC1h 50m

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

Mode-S 46A193 frequently asked

What is Mode-S code 46A193?
46A193 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-HLS.
Where is Mode-S 46A193 registered?
Mode-S code 46A193 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46A193 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46A193, octal 21520623, decimal 4,628,883.
What flights does 46A193 operate?
Mode-S 46A193 has broadcast 1 distinct callsign, including SXHLS.