Apparatus

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sensors Mode-S transponder

46A1D9

ICAO 24-bit transponder address · allocated to Greece

Hex
46A1D9
Octal
21520731
Decimal
4,628,953
Country
GR
No current signal · last broadcast 9h ago
Flights observed
75
Distinct callsigns
1
Country
GR
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 46A1D9.

Country allocation

The ICAO 24-bit address 46A1D9 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
SXHNY - 75 2026-06-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-13 SXHNY - Jun 13, 11:15 UTCJun 13, 11:35 UTC20m
2026-06-13 SXHNY - Jun 13, 09:50 UTCJun 13, 10:10 UTC20m
2026-06-11 SXHNY - Jun 11, 08:45 UTCJun 11, 10:20 UTC1h 35m
2026-06-10 SXHNY - Jun 10, 16:20 UTCJun 10, 16:45 UTC25m
2026-06-10 SXHNY - Jun 10, 15:00 UTCJun 10, 15:35 UTC35m
2026-06-10 SXHNY - Jun 10, 07:35 UTCJun 10, 08:00 UTC25m
2026-06-10 SXHNY - Jun 10, 06:20 UTCJun 10, 07:00 UTC40m
2026-06-10 SXHNY - Jun 10, 05:00 UTCJun 10, 05:35 UTC35m
2026-06-10 SXHNY - Jun 10, 03:20 UTCJun 10, 04:00 UTC40m
2026-06-09 SXHNY - Jun 9, 15:05 UTCJun 9, 15:50 UTC45m
2026-06-09 SXHNY - Jun 9, 14:00 UTCJun 9, 14:20 UTC20m
2026-06-09 SXHNY - Jun 9, 07:50 UTCJun 9, 08:05 UTC15m
2026-06-08 SXHNY - Jun 8, 16:15 UTCJun 8, 16:45 UTC30m
2026-06-08 SXHNY - Jun 8, 15:10 UTCJun 8, 15:40 UTC30m
2026-06-08 SXHNY - Jun 8, 13:20 UTCJun 8, 13:40 UTC20m
2026-06-08 SXHNY - Jun 8, 12:45 UTCJun 8, 13:00 UTC15m
2026-06-08 SXHNY - Jun 8, 08:25 UTCJun 8, 08:45 UTC20m
2026-06-08 SXHNY - Jun 8, 07:55 UTCJun 8, 08:10 UTC15m
2026-06-05 SXHNY - Jun 5, 16:35 UTCJun 5, 16:50 UTC15m
2026-06-05 SXHNY - Jun 5, 15:10 UTCJun 5, 15:35 UTC25m
2026-06-05 SXHNY - Jun 5, 13:05 UTCJun 5, 13:25 UTC20m
2026-06-05 SXHNY - Jun 5, 12:35 UTCJun 5, 12:55 UTC20m
2026-06-05 SXHNY - Jun 5, 07:20 UTCJun 5, 07:40 UTC20m
2026-06-05 SXHNY - Jun 5, 06:10 UTCJun 5, 06:45 UTC35m
2026-06-04 SXHNY - Jun 4, 10:55 UTCJun 4, 11:10 UTC15m
2026-06-04 SXHNY - Jun 4, 05:05 UTCJun 4, 05:35 UTC30m
2026-06-03 SXHNY - Jun 3, 05:35 UTCJun 3, 05:45 UTC10m
2026-06-02 SXHNY - Jun 2, 14:05 UTCJun 2, 14:20 UTC15m
2026-06-02 SXHNY - Jun 2, 12:15 UTCJun 2, 12:40 UTC25m
2026-06-02 SXHNY - Jun 2, 10:00 UTCJun 2, 11:20 UTC1h 20m
2026-06-01 SXHNY - Jun 1, 10:20 UTCJun 1, 10:45 UTC25m
2026-06-01 SXHNY - Jun 1, 09:10 UTCJun 1, 09:25 UTC15m
2026-06-01 SXHNY - Jun 1, 07:50 UTCJun 1, 08:25 UTC35m
2026-05-31 SXHNY - May 31, 10:30 UTCMay 31, 10:40 UTC10m
2026-05-30 SXHNY - May 30, 09:00 UTCMay 30, 09:40 UTC40m
2026-05-30 SXHNY - May 30, 07:30 UTCMay 30, 08:10 UTC40m
2026-05-29 SXHNY - May 29, 16:50 UTCMay 29, 17:05 UTC15m
2026-05-29 SXHNY - May 29, 15:35 UTCMay 29, 15:50 UTC15m
2026-05-29 SXHNY - May 29, 12:40 UTCMay 29, 13:45 UTC1h 5m
2026-05-29 SXHNY - May 29, 11:15 UTCMay 29, 11:25 UTC10m
2026-05-24 SXHNY - May 24, 13:15 UTCMay 24, 13:25 UTC10m
2026-05-24 SXHNY - May 24, 12:10 UTCMay 24, 12:40 UTC30m
2026-05-22 SXHNY - May 22, 08:05 UTCMay 22, 08:45 UTC40m
2026-05-20 SXHNY - May 20, 13:45 UTCMay 20, 13:55 UTC10m
2026-05-20 SXHNY - May 20, 12:20 UTCMay 20, 12:50 UTC30m
2026-05-20 SXHNY - May 20, 08:45 UTCMay 20, 09:05 UTC20m
2026-05-20 SXHNY - May 20, 08:10 UTCMay 20, 08:20 UTC10m
2026-05-17 SXHNY - May 17, 09:10 UTCMay 17, 09:30 UTC20m
2026-05-17 SXHNY - May 17, 07:55 UTCMay 17, 08:20 UTC25m
2026-05-16 SXHNY - May 16, 09:21 UTCMay 16, 09:31 UTC10m

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.

Mode-S 46A1D9 frequently asked

What is Mode-S code 46A1D9?
46A1D9 is an ICAO 24-bit transponder address. Allocated to Greece.
Where is Mode-S 46A1D9 registered?
Mode-S code 46A1D9 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46A1D9 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46A1D9, octal 21520731, decimal 4,628,953.
What flights does 46A1D9 operate?
Mode-S 46A1D9 has broadcast 1 distinct callsign, including SXHNY.