Apparatus

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sensors Mode-S transponder

46D2F2

ICAO 24-bit transponder address · allocated to Greece

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

Hex
46D2F2
Octal
21551362
Decimal
4,641,522
Country
GR
Tail
SX-TWR
Type
AT76
No current signal · last broadcast Jul 26, 21:25 UTC
Flights observed
969
Distinct callsigns
20
Country
GR
Last broadcast
Jul 26, 21:25 UTC

Last known position

Most recent position reported by Mode-S 46D2F2.

Country allocation

The ICAO 24-bit address 46D2F2 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
SEH401 Sky Express 16 2026-07-25
SEH400 Sky Express 16 2026-07-25
SEH2AK Sky Express 16 2026-07-25
SEH691 - 15 2026-07-18
SEH690 - 15 2026-07-12
SEH5TR - 15 2026-07-19
SEH5KA Sky Express 15 2026-07-22
SEH5JT - 15 2026-07-19
SEH3KA Sky Express 15 2026-07-25
SEH6VS Sky Express 14 2026-07-20
SEH5LE Sky Express 14 2026-07-20
SEH4AK Sky Express 14 2026-07-22
SEH1AM - 14 2026-07-10
SEH9TR - 13 2026-07-10
SEH9JT - 13 2026-07-10
SEH8TR - 13 2026-07-13
SEH7KA Sky Express 13 2026-07-23
SEH6AK Sky Express 13 2026-07-23
SEH473 - 13 2026-07-17
SEH472 - 13 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SEH6MT - Jul 26, 20:45 UTCJul 26, 21:15 UTC30m
2026-07-26 SEH5AM ATH → JMK Jul 26, 19:30 UTCJul 26, 20:05 UTC35m
2026-07-26 SEH405 JNX → ATH Jul 26, 17:45 UTCJul 26, 18:15 UTC30m
2026-07-26 SEH404 ATH → JNX Jul 26, 16:40 UTCJul 26, 17:10 UTC30m
2026-07-26 SEH407 JNX → ATH Jul 26, 14:25 UTCJul 26, 15:00 UTC35m
2026-07-26 SEH406 ATH → JNX Jul 26, 13:05 UTCJul 26, 13:35 UTC30m
2026-07-26 SEH2GK SKG → ATH Jul 26, 10:00 UTCJul 26, 10:45 UTC45m
2026-07-26 SEH2HG ATH → SKG Jul 26, 08:15 UTCJul 26, 09:10 UTC55m
2026-07-26 SEH2CA CFU → ATH Jul 26, 06:30 UTCJul 26, 07:05 UTC36m
2026-07-26 SEH1CF ATH → CFU Jul 26, 03:50 UTCJul 26, 04:25 UTC35m
2026-07-25 SEH6MT - Jul 25, 20:30 UTCJul 25, 21:00 UTC30m
2026-07-25 SEH5AM ATH → JMK Jul 25, 19:15 UTCJul 25, 19:45 UTC30m
2026-07-25 SEH5TH ZTH → ATH Jul 25, 17:50 UTCJul 25, 18:30 UTC40m
2026-07-25 SEH4ZT ATH → ZTH Jul 25, 16:10 UTCJul 25, 16:55 UTC45m
2026-07-25 SEH4VS MJT → ATH Jul 25, 14:20 UTCJul 25, 15:10 UTC50m
2026-07-25 SEH3LE ATH → MJT Jul 25, 13:00 UTCJul 25, 13:40 UTC40m
2026-07-25 SEH403 JNX → ATH Jul 25, 11:10 UTCJul 25, 11:35 UTC25m
2026-07-25 SEH402 ATH → JNX Jul 25, 10:10 UTCJul 25, 10:35 UTC25m
2026-07-25 SEH401 JNX → ATH Jul 25, 08:45 UTCJul 25, 09:15 UTC30m
2026-07-25 SEH400 ATH → JNX Jul 25, 07:50 UTCJul 25, 08:15 UTC25m
2026-07-25 SEH3KA KGS → ATH Jul 25, 06:00 UTCJul 25, 06:55 UTC55m
2026-07-25 SEH2AK ATH → KGS Jul 25, 04:25 UTCJul 25, 05:10 UTC45m
2026-07-24 SEH6CA - Jul 24, 20:30 UTCJul 24, 21:00 UTC30m
2026-07-24 SEH5CF - Jul 24, 17:55 UTCJul 24, 18:30 UTC35m
2026-07-24 SEH5TH ZTH → ATH Jul 24, 16:20 UTCJul 24, 17:00 UTC40m
2026-07-24 SEH4ZT ATH → ZTH Jul 24, 14:40 UTCJul 24, 15:30 UTC50m
2026-07-24 SEH5LA EFL → ATH Jul 24, 12:30 UTCJul 24, 13:20 UTC50m
2026-07-24 SEH4EL ATH → EFL Jul 24, 10:50 UTCJul 24, 11:45 UTC55m
2026-07-24 SEH2TR JTR → ATH Jul 24, 08:50 UTCJul 24, 09:25 UTC35m
2026-07-24 SEH2JT ATH → ATH Jul 24, 07:10 UTCJul 24, 07:40 UTC30m
2026-07-24 SEH435 JSI → ATH Jul 24, 05:35 UTCJul 24, 06:00 UTC25m
2026-07-24 SEH434 ATH → JSI Jul 24, 04:30 UTCJul 24, 04:50 UTC20m
2026-07-23 SEH7KA KGS → KGS Jul 23, 20:00 UTCJul 23, 20:55 UTC55m
2026-07-23 SEH6AK ATH → KGS Jul 23, 18:20 UTCJul 23, 19:15 UTC55m
2026-07-23 SEH6CQ - Jul 23, 17:00 UTCJul 23, 17:35 UTC35m
2026-07-23 SEH5DQ - Jul 23, 15:15 UTCJul 23, 15:50 UTC35m
2026-07-23 SEH311 SMI → ATH Jul 23, 13:30 UTCJul 23, 14:05 UTC35m
2026-07-23 SEH510 SKG → SMI Jul 23, 11:35 UTCJul 23, 12:30 UTC55m
2026-07-23 SEH511 SMI → SKG Jul 23, 09:30 UTCJul 23, 10:45 UTC1h 15m
2026-07-23 SEH1SM ATH → SMI Jul 23, 08:00 UTCJul 23, 08:30 UTC30m
2026-07-23 SEH2CA CFU → ATH Jul 23, 06:15 UTCJul 23, 06:50 UTC35m
2026-07-23 SEH1CF ATH → CFU Jul 23, 03:50 UTCJul 23, 04:35 UTC45m
2026-07-22 SEH7KA KGS → KGS Jul 22, 21:30 UTCJul 22, 22:30 UTC1h 0m
2026-07-22 SEH6AK ATH → KGS Jul 22, 19:55 UTCJul 22, 20:45 UTC50m
2026-07-22 LEH7LA EFL → ATH Jul 22, 17:35 UTCJul 22, 18:30 UTC55m
2026-07-22 SEH6EL ATH → EFL Jul 22, 15:55 UTCJul 22, 16:50 UTC55m
2026-07-22 SEH5KA KGS → ATH Jul 22, 14:00 UTCJul 22, 14:55 UTC55m
2026-07-22 SEH4AK ATH → KGS Jul 22, 12:25 UTCJul 22, 13:05 UTC40m
2026-07-22 SEH1CF ATH → CFU Jul 22, 03:45 UTCJul 22, 04:25 UTC40m
2026-07-21 SEH6CA - Jul 21, 20:00 UTCJul 21, 20:30 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-TWR page for operator, model, and routing details .

Mode-S 46D2F2 frequently asked

What is Mode-S code 46D2F2?
46D2F2 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-TWR.
Where is Mode-S 46D2F2 registered?
Mode-S code 46D2F2 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46D2F2 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46D2F2, octal 21551362, decimal 4,641,522.
What flights does 46D2F2 operate?
Mode-S 46D2F2 has broadcast 20 distinct callsigns, including SEH401, SEH400, SEH2AK, SEH691, SEH690.