sensors Mode-S transponder

46A5E4

ICAO 24-bit transponder address · allocated to Greece

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

Hex
46A5E4
Octal
21522744
Decimal
4,629,988
Country
GR
Tail
SX-IOD
Type
A20N
No current signal · last broadcast 12h ago
Flights observed
16
Distinct callsigns
12
Country
GR
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S 46A5E4.

Country allocation

The ICAO 24-bit address 46A5E4 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 12 distinct

Callsign Airline Flights Last seen
SEH3MX - 3 2026-04-13
SEH3XP - 2 2026-04-13
SEH2TC - 2 2026-04-13
SEH8CQ - 1 2026-04-12
SEH7DQ - 1 2026-04-12
SEH3TR - 1 2026-04-14
SEH3JT Sky Express 1 2026-04-14
SEH3DQ - 1 2026-04-14
SEH2TL - 1 2026-04-13
SEH2FI - 1 2026-04-13
SEH2CA - 1 2026-04-14
SEH1LC Sky Express 1 2026-04-13

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-04-14 SEH3DQ - Apr 14, 10:50 UTCApr 14, 11:05 UTC15m
2026-04-14 SEH3TR - Apr 14, 09:15 UTCApr 14, 09:40 UTC25m
2026-04-14 SEH3JT ATH → JTR Apr 14, 07:55 UTCApr 14, 08:20 UTC25m
2026-04-14 SEH2CA - Apr 14, 05:45 UTCApr 14, 06:20 UTC35m
2026-04-13 SEH3XP - Apr 13, 19:50 UTCApr 13, 21:15 UTC1h 25m
2026-04-13 SEH3XP - Apr 13, 19:05 UTCApr 13, 20:10 UTC1h 5m
2026-04-13 SEH3MX - Apr 13, 16:15 UTCApr 13, 17:45 UTC1h 30m
2026-04-13 SEH3MX - Apr 13, 15:50 UTCApr 13, 17:45 UTC1h 55m
2026-04-13 SEH3MX - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 SEH2TL - Apr 13, 12:55 UTCApr 13, 14:30 UTC1h 35m
2026-04-13 SEH2FI - Apr 13, 09:30 UTCApr 13, 11:30 UTC2h 0m
2026-04-13 SEH2TC - Apr 13, 07:55 UTCApr 13, 08:15 UTC20m
2026-04-13 SEH2TC - Apr 13, 06:50 UTCApr 13, 08:15 UTC1h 25m
2026-04-13 SEH1LC ATH → LCA Apr 13, 04:40 UTCApr 13, 05:50 UTC1h 10m
2026-04-12 SEH8CQ - Apr 12, 20:00 UTCApr 12, 20:15 UTC15m
2026-04-12 SEH7DQ - Apr 12, 18:20 UTCApr 12, 18:45 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-IOD page for operator, model, and routing details .

Mode-S 46A5E4 frequently asked

What is Mode-S code 46A5E4?
46A5E4 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-IOD.
Where is Mode-S 46A5E4 registered?
Mode-S code 46A5E4 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46A5E4 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 46A5E4, octal 21522744, decimal 4,629,988.
What flights does 46A5E4 operate?
Mode-S 46A5E4 has broadcast 12 distinct callsigns, including SEH3MX, SEH3XP, SEH2TC, SEH8CQ, SEH7DQ.