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 18h ago
Flights observed
45
Distinct callsigns
1
Country
GR
Last broadcast
18h 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 - 44 2026-06-02

Recent flights last 45

DateFlightRouteTakeoffLandingDuration
2026-06-02 SXAEX - Jun 2, 07:40 UTCJun 2, 09:20 UTC1h 40m
2026-06-02 SXAEX - Jun 2, 05:45 UTCJun 2, 06:35 UTC50m
2026-05-29 SXAEX - May 29, 07:10 UTCMay 29, 09:05 UTC1h 55m
2026-05-29 SXAEX - May 29, 04:20 UTCMay 29, 06:10 UTC1h 50m
2026-05-27 SXAEX - May 27, 04:14 UTCMay 27, 04:59 UTC45m
2026-05-26 SXAEX - May 26, 05:40 UTCMay 26, 06:54 UTC1h 15m
2026-05-25 SXAEX - May 25, 07:40 UTCMay 25, 09:00 UTC1h 20m
2026-05-25 SXAEX - May 25, 04:50 UTCMay 25, 06:55 UTC2h 5m
2026-05-22 SXAEX - May 22, 04:55 UTCMay 22, 06:15 UTC1h 20m
2026-05-21 SXAEX - May 21, 08:35 UTCMay 21, 09:00 UTC25m
2026-05-21 SXAEX - May 21, 06:45 UTCMay 21, 07:30 UTC45m
2026-05-20 SXAEX - May 20, 04:20 UTCMay 20, 04:35 UTC15m
2026-05-19 SXAEX - May 19, 08:50 UTCMay 19, 10:30 UTC1h 40m
2026-05-19 SXAEX - May 19, 04:45 UTCMay 19, 06:20 UTC1h 35m
2026-05-18 SXAEX - May 18, 04:25 UTCMay 18, 06:20 UTC1h 55m
2026-05-15 SXAEX - May 15, 07:50 UTCMay 15, 08:15 UTC25m
2026-05-15 SXAEX - May 15, 04:30 UTCMay 15, 06:00 UTC1h 30m
2026-05-13 SXAEX - May 13, 07:35 UTCMay 13, 08:10 UTC35m
2026-05-12 SXAEX - May 12, 04:45 UTCMay 12, 06:20 UTC1h 35m
2026-05-11 SXAEX - May 11, 06:50 UTCMay 11, 08:25 UTC1h 35m
2026-05-11 SXAEX - May 11, 04:25 UTCMay 11, 06:15 UTC1h 50m
2026-05-08 SXAEX - May 8, 06:35 UTCMay 8, 07:29 UTC55m
2026-05-08 SXAEX - May 8, 04:19 UTCMay 8, 04:54 UTC35m
2026-05-07 SXAEX - May 7, 08:25 UTCMay 7, 10:25 UTC2h 0m
2026-05-07 SXAEX - May 7, 07:15 UTCMay 7, 07:45 UTC30m
2026-05-06 SXAEX - May 6, 08:55 UTCMay 6, 12:01 UTC3h 5m
2026-05-06 - - May 6, 05:00 UTCMay 6, 05:10 UTC10m
2026-05-04 SXAEX - May 4, 08:05 UTCMay 4, 08:30 UTC25m
2026-04-29 SXAEX - Apr 29, 08:50 UTCApr 29, 11:45 UTC2h 56m
2026-04-29 SXAEX - Apr 29, 06:19 UTCApr 29, 08:05 UTC1h 45m
2026-04-29 SXAEX - Apr 29, 04:49 UTCApr 29, 05:25 UTC35m
2026-04-28 SXAEX - Apr 28, 06:30 UTCApr 28, 07:20 UTC50m
2026-04-24 SXAEX - Apr 24, 08:55 UTCApr 24, 12:00 UTC3h 5m
2026-04-24 SXAEX - Apr 24, 05:50 UTCApr 24, 06:25 UTC35m
2026-04-23 SXAEX - Apr 23, 04:35 UTCApr 23, 06:20 UTC1h 45m
2026-04-21 SXAEX - Apr 21, 06:25 UTCApr 21, 08:20 UTC1h 55m
2026-04-21 SXAEX - Apr 21, 04:50 UTCApr 21, 05:10 UTC20m
2026-04-20 SXAEX - Apr 20, 08:45 UTCApr 20, 12:00 UTC3h 15m
2026-04-16 SXAEX - Apr 16, 09:10 UTCApr 16, 10:40 UTC1h 30m
2026-04-16 SXAEX - Apr 16, 08:50 UTCApr 16, 09:05 UTC15m
2026-04-16 SXAEX - Apr 16, 07:09 UTCApr 16, 07:49 UTC40m
2026-04-16 SXAEX - Apr 16, 05:49 UTCApr 16, 07:05 UTC1h 15m
2026-04-15 SXAEX - Apr 15, 11:00 UTCApr 15, 11:55 UTC55m
2026-04-15 SXAEX - Apr 15, 09:00 UTCApr 15, 10:55 UTC1h 55m
2026-04-15 SXAEX - Apr 15, 06:15 UTCApr 15, 06:55 UTC40m

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 18h 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.