Apparatus

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sensors Mode-S transponder

46B821

ICAO 24-bit transponder address · allocated to Greece

Currently assigned to SX-NAA · AIRBUS A-321neo

Hex
46B821
Octal
21534041
Decimal
4,634,657
Country
GR
Tail
SX-NAA
Type
A21N
No current signal · last broadcast 19m ago
Flights observed
281
Distinct callsigns
20
Country
GR
Last broadcast
19m ago

Last known position

Most recent position reported by Mode-S 46B821.

Country allocation

The ICAO 24-bit address 46B821 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
AEE5DL Aegean Airlines 40 2026-06-02
AEE510 Aegean Airlines 38 2026-06-02
AEE4TS Aegean Airlines 38 2026-06-02
AEE25 Aegean Airlines 38 2026-06-02
AEE104 Aegean Airlines 38 2026-06-02
AEE2TS Aegean Airlines 36 2026-05-27
AEE3BR Aegean Airlines 3 2026-05-31
AEE8UM Aegean Airlines 2 2026-04-16
AEE6TH Aegean Airlines 2 2026-05-27
AEE6BR Aegean Airlines 2 2026-05-27
AEE2BR Aegean Airlines 2 2026-05-27
AEE28 Aegean Airlines 2 2026-04-16
AEE9W Aegean Airlines 1 2026-05-12
AEE995 Aegean Airlines 1 2026-05-12
AEE994 Aegean Airlines 1 2026-05-12
AEE991 Aegean Airlines 1 2026-06-01
AEE990 Aegean Airlines 1 2026-06-01
AEE909 Aegean Airlines 1 2026-06-01
AEE908 Aegean Airlines 1 2026-06-01
AEE904 Aegean Airlines 1 2026-06-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 AEE25 STR → SKG Jun 2, 18:00 UTCJun 2, 19:55 UTC1h 55m
2026-06-02 AEE510 SKG → STR Jun 2, 14:40 UTCJun 2, 16:45 UTC2h 5m
2026-06-02 AEE4TS DUS → SKG Jun 2, 11:00 UTCJun 2, 13:10 UTC2h 10m
2026-06-02 AEE5DL SKG → DUS Jun 2, 07:15 UTCJun 2, 09:45 UTC2h 30m
2026-06-02 AEE104 ATH → SKG Jun 2, 05:25 UTCJun 2, 06:10 UTC45m
2026-06-01 AEE909 LCA → ATH Jun 1, 18:45 UTCJun 1, 20:10 UTC1h 25m
2026-06-01 AEE908 ATH → LCA Jun 1, 16:05 UTCJun 1, 17:25 UTC1h 20m
2026-06-01 AEE52R LCA → ATH Jun 1, 13:20 UTCJun 1, 14:45 UTC1h 25m
2026-06-01 AEE904 ATH → LCA Jun 1, 10:40 UTCJun 1, 11:55 UTC1h 15m
2026-06-01 AEE991 IST → ATH Jun 1, 08:15 UTCJun 1, 09:05 UTC50m
2026-06-01 AEE990 ATH → IST Jun 1, 05:40 UTCJun 1, 06:40 UTC1h 0m
2026-05-31 AEE1HE HER → ATH May 31, 20:10 UTCMay 31, 20:45 UTC35m
2026-05-31 AEE320 ATH → HER May 31, 18:35 UTCMay 31, 19:00 UTC25m
2026-05-31 AEE319 HER → ATH May 31, 16:50 UTCMay 31, 17:20 UTC30m
2026-05-31 AEE5K ATH → HER May 31, 15:10 UTCMay 31, 15:40 UTC30m
2026-05-31 AEE3BR BRU → ATH May 31, 11:00 UTCMay 31, 13:45 UTC2h 45m
2026-05-30 AEE615 CDG → ATH May 30, 19:40 UTCMay 30, 22:25 UTC2h 45m
2026-05-30 AEE4CA ATH → CDG May 30, 15:20 UTCMay 30, 18:20 UTC3h 0m
2026-05-30 AEE2AD AMS → ATH May 30, 11:15 UTCMay 30, 13:55 UTC2h 40m
2026-05-30 AEE624 ATH → AMS May 30, 06:10 UTCMay 30, 09:15 UTC3h 5m
2026-05-29 AEE3LP LIS → ATH May 29, 23:25 UTCMay 30, 03:05 UTC3h 40m
2026-05-29 AEE7PT ATH → LIS May 29, 17:45 UTCMay 29, 21:40 UTC3h 55m
2026-05-29 AEE5PL CHQ → ATH May 29, 15:10 UTCMay 29, 15:45 UTC35m
2026-05-29 AEE4IG ATH → CHQ May 29, 13:40 UTCMay 29, 14:10 UTC30m
2026-05-29 AEE339 CHQ → ATH May 29, 11:35 UTCMay 29, 12:05 UTC30m
2026-05-29 AEE338 ATH → CHQ May 29, 10:00 UTCMay 29, 10:30 UTC30m
2026-05-29 AEE283 CFU → ATH May 29, 06:15 UTCMay 29, 06:50 UTC35m
2026-05-29 AEE282 ATH → CFU May 29, 04:25 UTCMay 29, 04:50 UTC25m
2026-05-28 AEE741 MAD → ATH May 28, 17:10 UTCMay 28, 20:20 UTC3h 10m
2026-05-28 AEE740 ATH → MAD May 28, 12:05 UTCMay 28, 15:15 UTC3h 10m
2026-05-28 AEE5CO FCO → ATH May 28, 08:25 UTCMay 28, 09:55 UTC1h 30m
2026-05-28 AEE5RF ATH → FCO May 28, 04:55 UTCMay 28, 06:35 UTC1h 40m
2026-05-27 AEE6BR BRU → ATH May 27, 18:30 UTCMay 27, 21:10 UTC2h 40m
2026-05-27 AEE6TH ATH → BRU May 27, 14:15 UTCMay 27, 17:20 UTC3h 5m
2026-05-27 AEE3BR BRU → ATH May 27, 09:45 UTCMay 27, 12:35 UTC2h 50m
2026-05-27 AEE2BR ATH → BRU May 27, 05:14 UTCMay 27, 08:15 UTC3h 0m
2026-05-27 AEE2TS SKG → ATH May 27, 03:09 UTCMay 27, 03:50 UTC40m
2026-05-26 AEE25 STR → SKG May 26, 17:39 UTCMay 26, 19:30 UTC1h 50m
2026-05-26 AEE510 SKG → STR May 26, 14:20 UTCMay 26, 16:15 UTC1h 55m
2026-05-26 AEE4TS DUS → SKG May 26, 11:00 UTCMay 26, 13:15 UTC2h 15m
2026-05-26 AEE5DL SKG → DUS May 26, 07:19 UTCMay 26, 09:40 UTC2h 20m
2026-05-26 AEE104 ATH → SKG May 26, 05:15 UTCMay 26, 05:49 UTC35m
2026-05-26 AEE2TS SKG → ATH May 26, 03:09 UTCMay 26, 03:55 UTC45m
2026-05-25 AEE25 STR → SKG May 25, 18:00 UTCMay 25, 19:54 UTC1h 55m
2026-05-25 AEE510 SKG → STR May 25, 14:25 UTCMay 25, 16:25 UTC2h 0m
2026-05-25 AEE4TS DUS → SKG May 25, 10:45 UTCMay 25, 13:05 UTC2h 20m
2026-05-25 AEE5DL SKG → DUS May 25, 07:15 UTCMay 25, 09:35 UTC2h 20m
2026-05-25 AEE104 ATH → SKG May 25, 05:25 UTCMay 25, 06:05 UTC40m
2026-05-25 AEE2TS SKG → ATH May 25, 03:10 UTCMay 25, 03:50 UTC40m
2026-05-24 AEE25 STR → SKG May 24, 18:55 UTCMay 24, 20:50 UTC1h 55m

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

Mode-S 46B821 frequently asked

What is Mode-S code 46B821?
46B821 is an ICAO 24-bit transponder address. Allocated to Greece. Assigned to SX-NAA.
Where is Mode-S 46B821 registered?
Mode-S code 46B821 is allocated to Greece (GR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 46B821 broadcasting right now?
No active broadcast right now. Last signal was 19m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 46B821, octal 21534041, decimal 4,634,657.
What flights does 46B821 operate?
Mode-S 46B821 has broadcast 20 distinct callsigns, including AEE5DL, AEE510, AEE4TS, AEE25, AEE104.