Apparatus

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sensors Mode-S transponder

4684B8

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-AEX · TECNAM P-2008

Hex
4684B8
Octal
21502270
Decimal
4,621,496
Country
GR
Tail
SX-AEX
Type
P208
No current signal · last broadcast 1d ago
Flights observed
96
Distinct callsigns
1
Country
GR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4684B8.

Country allocation

The ICAO 24-bit address 4684B8 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
SXAEX - 95 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 SXAEX - Jul 17, 04:29 UTCJul 17, 06:00 UTC1h 30m
2026-07-16 SXAEX - Jul 16, 08:50 UTCJul 16, 10:45 UTC1h 55m
2026-07-16 SXAEX - Jul 16, 05:30 UTCJul 16, 07:00 UTC1h 30m
2026-07-15 SXAEX - Jul 15, 06:55 UTCJul 15, 08:30 UTC1h 35m
2026-07-14 SXAEX - Jul 14, 06:35 UTCJul 14, 07:10 UTC35m
2026-07-10 SXAEX - Jul 10, 08:20 UTCJul 10, 08:35 UTC15m
2026-07-10 SXAEX - Jul 10, 05:15 UTCJul 10, 05:25 UTC10m
2026-07-09 SXAEX - Jul 9, 08:30 UTCJul 9, 08:45 UTC15m
2026-07-09 SXAEX - Jul 9, 06:25 UTCJul 9, 06:50 UTC25m
2026-07-08 SXAEX - Jul 8, 06:20 UTCJul 8, 06:30 UTC10m
2026-07-07 SXAEX - Jul 7, 08:35 UTCJul 7, 10:00 UTC1h 25m
2026-07-07 SXAEX - Jul 7, 06:15 UTCJul 7, 07:40 UTC1h 25m
2026-07-07 SXAEX - Jul 7, 05:15 UTCJul 7, 05:30 UTC15m
2026-07-06 SXAEX - Jul 6, 09:50 UTCJul 6, 10:25 UTC35m
2026-07-06 SXAEX - Jul 6, 07:15 UTCJul 6, 09:05 UTC1h 50m
2026-07-06 SXAEX - Jul 6, 04:40 UTCJul 6, 06:10 UTC1h 30m
2026-07-03 SXAEX - Jul 3, 08:30 UTCJul 3, 08:40 UTC10m
2026-07-03 SXAEX - Jul 3, 04:20 UTCJul 3, 06:05 UTC1h 45m
2026-07-02 SXAEX - Jul 2, 04:35 UTCJul 2, 06:41 UTC2h 6m
2026-07-01 SXAEX - Jul 1, 08:30 UTCJul 1, 09:00 UTC30m
2026-07-01 SXAEX - Jul 1, 06:55 UTCJul 1, 07:25 UTC30m
2026-07-01 SXAEX - Jul 1, 04:20 UTCJul 1, 06:05 UTC1h 45m
2026-06-30 SXAEX - Jun 30, 04:55 UTCJun 30, 05:10 UTC15m
2026-06-26 SXAEX - Jun 26, 04:24 UTCJun 26, 06:25 UTC2h 0m
2026-06-25 SXAEX - Jun 25, 07:00 UTCJun 25, 07:39 UTC40m
2026-06-25 SXAEX - Jun 25, 04:35 UTCJun 25, 06:25 UTC1h 50m
2026-06-24 SXAEX - Jun 24, 05:49 UTCJun 24, 06:20 UTC30m
2026-06-24 SXAEX - Jun 24, 04:30 UTCJun 24, 05:15 UTC45m
2026-06-23 SXAEX - Jun 23, 07:49 UTCJun 23, 08:25 UTC35m
2026-06-23 SXAEX - Jun 23, 05:49 UTCJun 23, 07:05 UTC1h 15m
2026-06-23 SXAEX - Jun 23, 04:19 UTCJun 23, 05:04 UTC45m
2026-06-18 SXAEX - Jun 18, 07:40 UTCJun 18, 09:10 UTC1h 30m
2026-06-18 SXAEX - Jun 18, 04:25 UTCJun 18, 06:55 UTC2h 30m
2026-06-17 SXAEX - Jun 17, 04:40 UTCJun 17, 04:50 UTC10m
2026-06-16 SXAEX - Jun 16, 08:00 UTCJun 16, 09:50 UTC1h 50m
2026-06-16 SXAEX - Jun 16, 04:30 UTCJun 16, 05:40 UTC1h 10m
2026-06-15 SXAEX - Jun 15, 07:10 UTCJun 15, 08:35 UTC1h 25m
2026-06-15 SXAEX - Jun 15, 04:30 UTCJun 15, 06:30 UTC2h 0m
2026-06-12 SXAEX - Jun 12, 07:05 UTCJun 12, 07:20 UTC15m
2026-06-12 SXAEX - Jun 12, 04:20 UTCJun 12, 06:20 UTC2h 0m
2026-06-11 SXAEX - Jun 11, 08:45 UTCJun 11, 10:10 UTC1h 25m
2026-06-11 SXAEX - Jun 11, 06:50 UTCJun 11, 08:10 UTC1h 20m
2026-06-09 SXAEX - Jun 9, 08:35 UTCJun 9, 09:45 UTC1h 10m
2026-06-09 SXAEX - Jun 9, 06:50 UTCJun 9, 07:15 UTC25m
2026-06-09 SXAEX - Jun 9, 05:45 UTCJun 9, 05:55 UTC10m
2026-06-08 SXAEX - Jun 8, 05:15 UTCJun 8, 06:05 UTC50m
2026-06-05 SXAEX - Jun 5, 07:10 UTCJun 5, 07:25 UTC15m
2026-06-05 SXAEX - Jun 5, 05:45 UTCJun 5, 06:20 UTC35m
2026-06-05 SXAEX - Jun 5, 04:25 UTCJun 5, 05:05 UTC40m
2026-06-04 SXAEX - Jun 4, 04:15 UTCJun 4, 06:20 UTC2h 5m

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

Mode-S 4684B8 frequently asked

What is Mode-S code 4684B8?
4684B8 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-AEX.
Where is Mode-S 4684B8 registered?
Mode-S code 4684B8 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4684B8 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4684B8, octal 21502270, decimal 4,621,496.
What flights does 4684B8 operate?
Mode-S 4684B8 has broadcast 1 distinct callsign, including SXAEX.