Apparatus

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sensors Mode-S transponder

46D0C9

ICAO 24-bit transponder address · allocated to Greece

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

Hex
46D0C9
Octal
21550311
Decimal
4,640,969
Country
GR
Tail
SX-TFI
Type
AT76
No current signal · last broadcast 1h ago
Flights observed
400
Distinct callsigns
20
Country
GR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 46D0C9.

Country allocation

The ICAO 24-bit address 46D0C9 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
SEH6SF Sky Express 10 2026-05-29
SEH1AM Sky Express 10 2026-05-26
SEH6HS Sky Express 9 2026-05-29
SEH5TR Sky Express 9 2026-05-27
SEH5JT Sky Express 9 2026-05-17
SEH401 Sky Express 9 2026-05-29
SEH2MT Sky Express 9 2026-05-26
SEH7KA Sky Express 8 2026-05-20
SEH6AK Sky Express 8 2026-05-20
SEH5AT Sky Express 8 2026-05-26
SEH400 Sky Express 8 2026-05-25
SEH7JT - 7 2026-05-24
SEH6DT Sky Express 7 2026-05-16
SEH5XD Sky Express 7 2026-05-16
SEH4HR Sky Express 7 2026-05-26
SEH473 Sky Express 7 2026-05-30
SEH472 Sky Express 7 2026-05-30
SEH3JT Sky Express 7 2026-05-17
SEH2VS Sky Express 7 2026-05-11
SEH1LE Sky Express 7 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SEH6JT ATH → JTR May 30, 11:40 UTCMay 30, 12:15 UTC35m
2026-05-30 SEH473 PAS → ATH May 30, 10:20 UTCMay 30, 10:45 UTC25m
2026-05-30 SEH472 ATH → PAS May 30, 09:15 UTCMay 30, 09:40 UTC25m
2026-05-29 SEH6HS SOF → ATH May 29, 18:00 UTCMay 29, 19:20 UTC1h 20m
2026-05-29 SEH6SF ATH → SOF May 29, 15:55 UTCMay 29, 17:05 UTC1h 10m
2026-05-29 SEH5KA KGS → ATH May 29, 14:10 UTCMay 29, 14:55 UTC45m
2026-05-29 SEH4AK ATH → KGS May 29, 12:40 UTCMay 29, 13:25 UTC45m
2026-05-29 SEH403 JNX → ATH May 29, 11:00 UTCMay 29, 11:30 UTC30m
2026-05-29 SEH402 ATH → JNX May 29, 10:05 UTCMay 29, 10:30 UTC25m
2026-05-29 SEH401 JNX → ATH May 29, 07:35 UTCMay 29, 09:05 UTC1h 30m
2026-05-29 SEH3KA KGS → ATH May 29, 05:55 UTCMay 29, 06:45 UTC50m
2026-05-29 SEH2AK ATH → KGS May 29, 04:25 UTCMay 29, 05:15 UTC50m
2026-05-28 SEH3TS KIT → ATH May 28, 19:40 UTCMay 28, 20:20 UTC40m
2026-05-28 SEH2TS ATH → KIT May 28, 18:20 UTCMay 28, 18:50 UTC30m
2026-05-28 SEH405 JNX → ATH May 28, 16:25 UTCMay 28, 17:00 UTC35m
2026-05-28 SEH404 ATH → JNX May 28, 15:30 UTCMay 28, 15:55 UTC25m
2026-05-28 SEH5LA EFL → ATH May 28, 13:25 UTCMay 28, 14:30 UTC1h 5m
2026-05-28 SEH4EL ATH → EFL May 28, 11:30 UTCMay 28, 12:35 UTC1h 5m
2026-05-28 SEH473 PAS → ATH May 28, 10:10 UTCMay 28, 10:35 UTC25m
2026-05-28 SEH472 ATH → PAS May 28, 09:10 UTCMay 28, 09:35 UTC25m
2026-05-28 SEH6HS SOF → ATH May 28, 06:45 UTCMay 28, 08:05 UTC1h 20m
2026-05-28 SEH6SF ATH → SOF May 28, 04:35 UTCMay 28, 05:45 UTC1h 10m
2026-05-27 SEH5TR JTR → ATH May 27, 13:20 UTCMay 27, 13:45 UTC25m
2026-05-27 SEH6JT ATH → JTR May 27, 11:50 UTCMay 27, 12:20 UTC30m
2026-05-27 SEH473 PAS → ATH May 27, 10:35 UTCMay 27, 11:00 UTC25m
2026-05-27 SEH472 ATH → PAS May 27, 09:30 UTCMay 27, 09:55 UTC25m
2026-05-27 SEH471 PAS → ATH May 27, 08:05 UTCMay 27, 08:30 UTC25m
2026-05-27 SEH6JT ATH → JTR May 27, 07:00 UTCMay 27, 07:25 UTC25m
2026-05-26 SEH6MT JMK → ATH May 26, 19:40 UTCMay 26, 20:15 UTC35m
2026-05-26 SEH5AM ATH → JMK May 26, 18:30 UTCMay 26, 18:59 UTC30m
2026-05-26 SEH8TR - May 26, 15:45 UTCMay 26, 16:15 UTC30m
2026-05-26 SEH8JT - May 26, 14:24 UTCMay 26, 15:00 UTC35m
2026-05-26 SEH5AT HER → ATH May 26, 12:35 UTCMay 26, 13:15 UTC40m
2026-05-26 SEH4HR ATH → HER May 26, 10:54 UTCMay 26, 11:34 UTC40m
2026-05-26 SEH2TR JTR → ATH May 26, 09:25 UTCMay 26, 09:55 UTC30m
2026-05-26 SEH2JT ATH → ATH May 26, 07:34 UTCMay 26, 08:10 UTC35m
2026-05-26 SEH2MT SMI → JMK May 26, 05:59 UTCMay 26, 06:29 UTC30m
2026-05-26 SEH1AM ATH → JMK May 26, 04:39 UTCMay 26, 05:05 UTC25m
2026-05-25 SEH475 PAS → ATH May 25, 14:30 UTCMay 25, 15:00 UTC30m
2026-05-25 SEH474 ATH → PAS May 25, 13:10 UTCMay 25, 13:35 UTC25m
2026-05-25 SEH4TR JTR → ATH May 25, 11:35 UTCMay 25, 12:10 UTC35m
2026-05-25 SEH4JT ATH → ATH May 25, 10:00 UTCMay 25, 10:35 UTC35m
2026-05-25 SEH401 JNX → ATH May 25, 08:35 UTCMay 25, 09:00 UTC25m
2026-05-25 SEH400 ATH → JNX May 25, 07:30 UTCMay 25, 07:55 UTC25m
2026-05-25 SEH2MT SMI → JMK May 25, 06:00 UTCMay 25, 06:30 UTC30m
2026-05-25 SEH1AM ATH → JMK May 25, 04:50 UTCMay 25, 05:15 UTC25m
2026-05-24 SEH353 JTR → ATH May 24, 16:15 UTCMay 24, 16:50 UTC35m
2026-05-24 SEH7JT - May 24, 14:40 UTCMay 24, 15:10 UTC30m
2026-05-24 SEH4TR JTR → ATH May 24, 12:55 UTCMay 24, 13:25 UTC30m
2026-05-24 SEH4JT ATH → ATH May 24, 11:30 UTCMay 24, 12:00 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-TFI page for operator, model, and routing details .

Mode-S 46D0C9 frequently asked

What is Mode-S code 46D0C9?
46D0C9 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-TFI.
Where is Mode-S 46D0C9 registered?
Mode-S code 46D0C9 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46D0C9 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46D0C9, octal 21550311, decimal 4,640,969.
What flights does 46D0C9 operate?
Mode-S 46D0C9 has broadcast 20 distinct callsigns, including SEH6SF, SEH1AM, SEH6HS, SEH5TR, SEH5JT.