Apparatus

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sensors Mode-S transponder

46CED4

ICAO 24-bit transponder address · allocated to Greece

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

Hex
46CED4
Octal
21547324
Decimal
4,640,468
Country
GR
Tail
SX-SVT
Type
AT76
No current signal · last broadcast 1h ago
Flights observed
445
Distinct callsigns
20
Country
GR
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 46CED4.

Country allocation

The ICAO 24-bit address 46CED4 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
SEH3TK Sky Express 21 2026-05-29
SEH4JA Sky Express 19 2026-05-29
SEH6JA Sky Express 18 2026-05-29
SEH5TK Sky Express 17 2026-05-29
SEH2DT Sky Express 13 2026-05-27
SEH1XD Sky Express 13 2026-05-27
SEH2JA Sky Express 12 2026-05-28
SEH1TK Sky Express 12 2026-05-28
SEH2TR Sky Express 11 2026-05-24
SEH7TR Sky Express 10 2026-05-29
SEH7KH Sky Express 10 2026-05-29
SEH2JT Sky Express 10 2026-05-24
SEH405 Sky Express 8 2026-05-21
SEH404 Sky Express 8 2026-05-21
SEH3TR Sky Express 8 2026-05-06
SEH3JT Sky Express 8 2026-05-06
SEH311 Sky Express 8 2026-05-27
SEH2HG Sky Express 8 2026-05-21
SEH2GK Sky Express 8 2026-05-21
SEH1SM Sky Express 8 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 SEH5AT HER → ATH May 30, 11:55 UTCMay 30, 12:30 UTC35m
2026-05-30 SEH4HR ATH → HER May 30, 10:00 UTCMay 30, 10:40 UTC40m
2026-05-30 SEH470 ATH → PAS May 30, 08:20 UTCMay 30, 08:40 UTC20m
2026-05-30 SEH470 ATH → PAS May 30, 07:00 UTCMay 30, 07:30 UTC30m
2026-05-29 SEH6JA JKH → ATH May 29, 19:45 UTCMay 29, 20:20 UTC35m
2026-05-29 SEH5TK ATH → JKH May 29, 18:30 UTCMay 29, 19:00 UTC30m
2026-05-29 SEH4JA JKH → ATH May 29, 17:15 UTCMay 29, 17:50 UTC35m
2026-05-29 SEH7KH SKG → JKH May 29, 15:30 UTCMay 29, 16:25 UTC55m
2026-05-29 SEH7TR JKH → SKG May 29, 13:40 UTCMay 29, 14:45 UTC1h 5m
2026-05-29 SEH3TK ATH → JKH May 29, 12:25 UTCMay 29, 12:55 UTC30m
2026-05-29 SEH473 PAS → ATH May 29, 10:35 UTCMay 29, 11:00 UTC25m
2026-05-29 SEH472 ATH → PAS May 29, 09:30 UTCMay 29, 09:55 UTC25m
2026-05-29 SEH471 PAS → ATH May 29, 08:05 UTCMay 29, 08:35 UTC30m
2026-05-29 SEH470 ATH → PAS May 29, 07:00 UTCMay 29, 07:25 UTC25m
2026-05-28 SEH6JA JKH → ATH May 28, 19:20 UTCMay 28, 19:45 UTC25m
2026-05-28 SEH5TK ATH → JKH May 28, 17:55 UTCMay 28, 18:25 UTC30m
2026-05-28 SEH5KA KGS → ATH May 28, 14:55 UTCMay 28, 15:45 UTC50m
2026-05-28 SEH4AK ATH → KGS May 28, 13:15 UTCMay 28, 14:00 UTC45m
2026-05-28 SEH233 - May 28, 11:35 UTCMay 28, 12:00 UTC25m
2026-05-28 SEH3AM ATH → JMK May 28, 10:30 UTCMay 28, 10:55 UTC25m
2026-05-28 SEH3TH ZTH → ATH May 28, 08:30 UTCMay 28, 09:15 UTC45m
2026-05-28 SEH2ZT ATH → ZTH May 28, 07:10 UTCMay 28, 07:55 UTC45m
2026-05-28 SEH2JA JKH → ATH May 28, 05:50 UTCMay 28, 06:20 UTC30m
2026-05-28 SEH1TK ATH → JKH May 28, 04:30 UTCMay 28, 04:55 UTC25m
2026-05-27 SEH6CA CFU → ATH May 27, 19:45 UTCMay 27, 20:15 UTC30m
2026-05-27 SEH5CF ATH → ATH May 27, 17:25 UTCMay 27, 18:00 UTC35m
2026-05-27 SEH7JA - May 27, 15:30 UTCMay 27, 16:10 UTC40m
2026-05-27 SEH7KH SKG → JKH May 27, 13:55 UTCMay 27, 14:45 UTC50m
2026-05-27 SEH7TR JKH → SKG May 27, 12:20 UTCMay 27, 13:10 UTC50m
2026-05-27 SEH3TK ATH → JKH May 27, 10:55 UTCMay 27, 11:20 UTC25m
2026-05-27 SEH311 SMI → ATH May 27, 09:15 UTCMay 27, 10:00 UTC45m
2026-05-27 SEH1SM ATH → SMI May 27, 07:40 UTCMay 27, 08:15 UTC35m
2026-05-27 SEH2DT AXD → ATH May 27, 05:40 UTCMay 27, 06:40 UTC1h 0m
2026-05-27 SEH1XD ATH → AXD May 27, 03:50 UTCMay 27, 04:45 UTC55m
2026-05-26 SEH9TR - May 26, 19:05 UTCMay 26, 19:30 UTC25m
2026-05-26 SEH9JT - May 26, 17:35 UTCMay 26, 18:05 UTC30m
2026-05-26 SEH5KA KGS → ATH May 26, 15:09 UTCMay 26, 16:05 UTC55m
2026-05-26 SEH4AK ATH → KGS May 26, 13:34 UTCMay 26, 14:30 UTC55m
2026-05-26 SEH4TR JTR → ATH May 26, 11:50 UTCMay 26, 12:20 UTC30m
2026-05-26 SEH4JT ATH → ATH May 26, 10:25 UTCMay 26, 10:54 UTC30m
2026-05-26 SEH401 JNX → ATH May 26, 08:39 UTCMay 26, 09:09 UTC30m
2026-05-26 SEH400 ATH → JNX May 26, 07:24 UTCMay 26, 07:55 UTC30m
2026-05-26 SEH2JA JKH → ATH May 26, 06:04 UTCMay 26, 06:39 UTC35m
2026-05-26 SEH1TK ATH → JKH May 26, 04:35 UTCMay 26, 05:05 UTC30m
2026-05-25 SEH4JA JKH → ATH May 25, 15:55 UTCMay 25, 16:25 UTC30m
2026-05-25 SEH7KH SKG → JKH May 25, 14:15 UTCMay 25, 15:05 UTC50m
2026-05-25 SEH7TR JKH → SKG May 25, 12:40 UTCMay 25, 13:35 UTC55m
2026-05-25 SEH3TK ATH → JKH May 25, 11:20 UTCMay 25, 11:50 UTC30m
2026-05-25 SEH311 SMI → ATH May 25, 09:40 UTCMay 25, 10:30 UTC50m
2026-05-25 SEH1SM ATH → SMI May 25, 08:05 UTCMay 25, 08:40 UTC35m

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

Mode-S 46CED4 frequently asked

What is Mode-S code 46CED4?
46CED4 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-SVT.
Where is Mode-S 46CED4 registered?
Mode-S code 46CED4 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46CED4 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 46CED4, octal 21547324, decimal 4,640,468.
What flights does 46CED4 operate?
Mode-S 46CED4 has broadcast 20 distinct callsigns, including SEH3TK, SEH4JA, SEH6JA, SEH5TK, SEH2DT.