Apparatus

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sensors Mode-S transponder

46CD38

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-SIX · ATR-42-500

Hex
46CD38
Octal
21546470
Decimal
4,640,056
Country
GR
Tail
SX-SIX
Type
AT45
No current signal · last broadcast 7h ago
Flights observed
293
Distinct callsigns
20
Country
GR
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S 46CD38.

Country allocation

The ICAO 24-bit address 46CD38 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 20 distinct

Callsign Airline Flights Last seen
SEH050 Sky Express 47 2026-05-27
SEH051 Sky Express 41 2026-05-27
SEH1RP Sky Express 40 2026-05-29
SEH2KT Sky Express 34 2026-05-29
SEH071 - 26 2026-05-28
SEH070 Sky Express 22 2026-05-28
SEH7TL Sky Express 18 2026-05-27
SEH010 Sky Express 16 2026-05-28
SEH8LH Sky Express 12 2026-05-27
SEH011 Sky Express 12 2026-05-28
SEH5ML Sky Express 3 2026-05-25
SEH4LO - 2 2026-05-25
SEH101 Sky Express 2 2026-05-25
SEH031 Sky Express 2 2026-05-25
SEH030 Sky Express 2 2026-05-25
SEH5KA Sky Express 1 2026-05-21
SEH4L0 Sky Express 1 2026-05-22
SEH4AK Sky Express 1 2026-05-21
SEH471 Sky Express 1 2026-05-21
SEH470 Sky Express 1 2026-05-21

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SEH2KT RHO → HER May 29, 17:35 UTCMay 29, 18:05 UTC30m
2026-05-29 SEH1RP HER → RHO May 29, 16:25 UTCMay 29, 16:45 UTC20m
2026-05-28 SEH2KT RHO → HER May 28, 15:45 UTCMay 28, 16:15 UTC30m
2026-05-28 SEH071 - May 28, 14:35 UTCMay 28, 15:05 UTC30m
2026-05-28 SEH071 - May 28, 12:50 UTCMay 28, 13:25 UTC35m
2026-05-28 SEH010 ATH → JTY May 28, 10:55 UTCMay 28, 11:25 UTC30m
2026-05-28 SEH011 JTY → ATH May 28, 08:45 UTCMay 28, 09:30 UTC45m
2026-05-28 SEH070 LRS → JTY May 28, 07:50 UTCMay 28, 08:05 UTC15m
2026-05-28 SEH070 LRS → JTY May 28, 05:40 UTCMay 28, 06:05 UTC25m
2026-05-28 SEH1RP HER → RHO May 28, 04:25 UTCMay 28, 04:45 UTC20m
2026-05-27 SEH2KT RHO → HER May 27, 18:25 UTCMay 27, 18:55 UTC30m
2026-05-27 SEH051 SMI → RHO May 27, 17:00 UTCMay 27, 17:35 UTC35m
2026-05-27 SEH051 SMI → RHO May 27, 15:55 UTCMay 27, 16:10 UTC15m
2026-05-27 SEH051 SMI → RHO May 27, 14:30 UTCMay 27, 14:45 UTC15m
2026-05-27 SEH051 SMI → RHO May 27, 13:35 UTCMay 27, 14:05 UTC30m
2026-05-27 SEH7TL ATH → ATH May 27, 12:25 UTCMay 27, 13:00 UTC35m
2026-05-27 SEH8LH LXS → ATH May 27, 10:10 UTCMay 27, 10:55 UTC45m
2026-05-27 SEH050 MJT → LXS May 27, 09:00 UTCMay 27, 09:20 UTC20m
2026-05-27 SEH050 MJT → LXS May 27, 08:00 UTCMay 27, 08:10 UTC10m
2026-05-27 SEH050 MJT → LXS May 27, 05:35 UTCMay 27, 06:04 UTC30m
2026-05-27 SEH071 - May 27, 04:24 UTCMay 27, 04:45 UTC20m
2026-05-26 SEH071 - May 26, 15:54 UTCMay 26, 16:24 UTC30m
2026-05-26 SEH071 - May 26, 14:35 UTCMay 26, 15:05 UTC30m
2026-05-26 SEH071 - May 26, 12:54 UTCMay 26, 13:40 UTC45m
2026-05-26 SEH071 - May 26, 12:10 UTCMay 26, 12:20 UTC10m
2026-05-26 SEH010 ATH → JTY May 26, 11:00 UTCMay 26, 11:34 UTC35m
2026-05-26 SEH011 JTY → ATH May 26, 08:54 UTCMay 26, 09:45 UTC50m
2026-05-26 SEH070 LRS → JTY May 26, 07:55 UTCMay 26, 08:04 UTC10m
2026-05-26 SEH070 LRS → JTY May 26, 05:30 UTCMay 26, 05:49 UTC20m
2026-05-26 SEH1RP HER → RHO May 26, 04:20 UTCMay 26, 04:39 UTC20m
2026-05-25 SEH101 RHO → HER May 25, 18:20 UTCMay 25, 18:50 UTC30m
2026-05-25 SEH051 SMI → RHO May 25, 17:00 UTCMay 25, 17:30 UTC30m
2026-05-25 SEH051 SMI → RHO May 25, 16:00 UTCMay 25, 16:10 UTC10m
2026-05-25 SEH051 SMI → RHO May 25, 14:35 UTCMay 25, 14:50 UTC15m
2026-05-25 SEH051 SMI → RHO May 25, 13:30 UTCMay 25, 13:55 UTC25m
2026-05-25 SEH7TL ATH → ATH May 25, 12:15 UTCMay 25, 12:50 UTC35m
2026-05-25 SEH5ML MLO → ATH May 25, 10:35 UTCMay 25, 11:00 UTC25m
2026-05-25 SEH4LO - May 25, 09:30 UTCMay 25, 09:55 UTC25m
2026-05-25 SEH031 JKL → ATH May 25, 06:40 UTCMay 25, 07:25 UTC45m
2026-05-25 SEH030 ATH → JKL May 25, 05:10 UTCMay 25, 05:55 UTC45m
2026-05-24 SEH10TR - May 24, 16:35 UTCMay 24, 17:05 UTC30m
2026-05-24 SEH352A - May 24, 15:15 UTCMay 24, 15:45 UTC30m
2026-05-24 SEH021 JSY → ATH May 24, 11:25 UTCMay 24, 11:45 UTC20m
2026-05-24 SEH020 ATH → JSY May 24, 10:30 UTCMay 24, 10:50 UTC20m
2026-05-24 SEH031 JKL → ATH May 24, 08:55 UTCMay 24, 09:40 UTC45m
2026-05-24 SEH030 ATH → JKL May 24, 07:20 UTCMay 24, 08:00 UTC40m
2026-05-24 SEH011 JTY → ATH May 24, 05:40 UTCMay 24, 06:25 UTC45m
2026-05-24 SEH01Q - May 24, 04:25 UTCMay 24, 04:55 UTC30m
2026-05-23 SEH3TS KIT → ATH May 23, 13:55 UTCMay 23, 14:25 UTC30m
2026-05-23 SEH2TS ATH → KIT May 23, 12:40 UTCMay 23, 13:10 UTC30m

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

Mode-S 46CD38 frequently asked

What is Mode-S code 46CD38?
46CD38 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-SIX.
Where is Mode-S 46CD38 registered?
Mode-S code 46CD38 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46CD38 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46CD38, octal 21546470, decimal 4,640,056.
What flights does 46CD38 operate?
Mode-S 46CD38 has broadcast 20 distinct callsigns, including SEH050, SEH051, SEH1RP, SEH2KT, SEH071.