sensors Mode-S transponder

46A5E1

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-IOA · AIRBUS A-320neo

Hex
46A5E1
Octal
21522741
Decimal
4,629,985
Country
GR
Tail
SX-IOA
Type
A20N
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 46A5E1.

Country allocation

The ICAO 24-bit address 46A5E1 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
SEH651 - 3 2026-04-13
SEH5PG Sky Express 2 2026-04-14
SEH5IR - 2 2026-04-13
SEH981 Sky Express 1 2026-04-12
SEH650 - 1 2026-04-13
SEH5RB - 1 2026-04-13
SEH563 - 1 2026-04-14
SEH562 - 1 2026-04-14
SEH3RT - 1 2026-04-13
SEH3IR - 1 2026-04-13

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-04-14 SEH5PG HER → CDG Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 SEH5PG HER → CDG Apr 14, 08:20 UTCApr 14, 09:05 UTC45m
2026-04-14 SEH562 - Apr 14, 06:20 UTCApr 14, 07:10 UTC50m
2026-04-14 SEH563 - Apr 14, 05:15 UTCApr 14, 05:25 UTC10m
2026-04-13 SEH3IR - Apr 13, 20:55 UTCApr 13, 21:45 UTC50m
2026-04-13 SEH650 - Apr 13, 18:10 UTCApr 13, 19:50 UTC1h 40m
2026-04-13 SEH651 - Apr 13, 16:15 UTCApr 13, 17:00 UTC45m
2026-04-13 SEH651 - Apr 13, 15:50 UTCApr 13, 17:00 UTC1h 10m
2026-04-13 SEH651 SKG → RHO Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 SEH3RT - Apr 13, 13:15 UTCApr 13, 14:15 UTC1h 0m
2026-04-13 SEH5IR - Apr 13, 11:55 UTCApr 13, 12:05 UTC10m
2026-04-13 SEH5IR - Apr 13, 08:55 UTCApr 13, 12:05 UTC3h 10m
2026-04-13 SEH5RB - Apr 13, 04:25 UTCApr 13, 07:35 UTC3h 10m
2026-04-12 SEH981 LIL → HER Apr 12, 17:45 UTCApr 12, 20:15 UTC2h 30m

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

Mode-S 46A5E1 frequently asked

What is Mode-S code 46A5E1?
46A5E1 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-IOA.
Where is Mode-S 46A5E1 registered?
Mode-S code 46A5E1 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46A5E1 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 46A5E1, octal 21522741, decimal 4,629,985.
What flights does 46A5E1 operate?
Mode-S 46A5E1 has broadcast 10 distinct callsigns, including SEH651, SEH5PG, SEH5IR, SEH981, SEH650.