sensors Mode-S transponder

46D2F2

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-TWR · ATR-72-600

Hex
46D2F2
Octal
21551362
Decimal
4,641,522
Country
GR
Tail
SX-TWR
Type
AT76
No current signal · last broadcast 14h ago
Flights observed
14
Distinct callsigns
10
Country
GR
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 46D2F2.

Country allocation

The ICAO 24-bit address 46D2F2 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 10 distinct

Callsign Airline Flights Last seen
SEH6DT - 2 2026-04-13
SEH5LA - 2 2026-04-13
SEH4DT - 2 2026-04-13
SEH471 - 2 2026-04-13
SEH5XD - 1 2026-04-13
SEH4EL - 1 2026-04-13
SEH470 Sky Express 1 2026-04-13
SEH3XD - 1 2026-04-13
SEH3LE - 1 2026-04-14
SEH2DT - 1 2026-04-14

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 SEH3LE ATH → MJT Apr 14, 09:35 UTCApr 14, 10:15 UTC40m
2026-04-14 SEH2DT - Apr 14, 05:45 UTCApr 14, 06:50 UTC1h 5m
2026-04-13 SEH6DT - Apr 13, 19:50 UTCApr 13, 20:35 UTC45m
2026-04-13 SEH6DT - Apr 13, 19:35 UTCApr 13, 20:10 UTC35m
2026-04-13 SEH5XD - Apr 13, 17:35 UTCApr 13, 18:30 UTC55m
2026-04-13 SEH4DT - Apr 13, 15:50 UTCApr 13, 16:00 UTC10m
2026-04-13 SEH4DT - Apr 13, 15:00 UTCApr 13, 16:00 UTC1h 0m
2026-04-13 SEH3XD - Apr 13, 13:25 UTCApr 13, 14:15 UTC50m
2026-04-13 SEH5LA - Apr 13, 12:20 UTCApr 13, 12:30 UTC10m
2026-04-13 SEH5LA - Apr 13, 11:50 UTCApr 13, 12:15 UTC25m
2026-04-13 SEH4EL - Apr 13, 10:00 UTCApr 13, 10:50 UTC50m
2026-04-13 SEH471 - Apr 13, 08:20 UTCApr 13, 08:25 UTC5m
2026-04-13 SEH471 - Apr 13, 08:05 UTCApr 13, 08:15 UTC10m
2026-04-13 SEH470 ATH → PAS Apr 13, 06:50 UTCApr 13, 07:15 UTC25m

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

Mode-S 46D2F2 frequently asked

What is Mode-S code 46D2F2?
46D2F2 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-TWR.
Where is Mode-S 46D2F2 registered?
Mode-S code 46D2F2 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46D2F2 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46D2F2, octal 21551362, decimal 4,641,522.
What flights does 46D2F2 operate?
Mode-S 46D2F2 has broadcast 10 distinct callsigns, including SEH6DT, SEH5LA, SEH4DT, SEH471, SEH5XD.