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
Transponder active on ground
Flights observed
537
Distinct callsigns
20
Country
GR
Last broadcast
2h 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 - 70 2026-07-07
AEE510 - 69 2026-07-07
AEE4TS Aegean Airlines 68 2026-07-07
AEE25 - 68 2026-07-07
AEE104 - 68 2026-07-07
AEE2TS - 66 2026-07-07
AEE9W - 5 2026-07-15
AEE4BT - 5 2026-07-15
AEE8DT - 4 2026-07-15
AEE82B - 4 2026-07-15
AEE3BR Aegean Airlines 4 2026-06-06
AEE995 - 3 2026-07-08
AEE994 - 3 2026-07-08
AEE909 - 3 2026-07-13
AEE908 - 3 2026-07-13
AEE6TH Aegean Airlines 3 2026-06-06
AEE6BR Aegean Airlines 3 2026-06-06
AEE2BR Aegean Airlines 3 2026-06-06
AEE904 - 2 2026-07-13
AEE8UM Aegean Airlines 2 2026-04-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 AEE5IN MXP → ATH Jul 17, 18:25 UTCJul 17, 20:20 UTC1h 55m
2026-07-17 AEE4MI ATH → MXP Jul 17, 14:24 UTCJul 17, 16:40 UTC2h 15m
2026-07-17 AEE855 - Jul 17, 10:05 UTCJul 17, 12:15 UTC2h 10m
2026-07-17 AEE854 ATH → GVA Jul 17, 06:05 UTCJul 17, 08:45 UTC2h 40m
2026-07-17 AEE929 TLV → ATH Jul 17, 02:25 UTCJul 17, 04:04 UTC1h 40m
2026-07-16 AEE928 ATH → TLV Jul 16, 22:45 UTCJul 17, 00:20 UTC1h 35m
2026-07-16 AEE3FT FRA → ATH Jul 16, 18:05 UTCJul 16, 20:25 UTC2h 20m
2026-07-16 AEE832 ATH → FRA Jul 16, 13:49 UTCJul 16, 16:35 UTC2h 45m
2026-07-16 AEE831 FRA → ATH Jul 16, 09:50 UTCJul 16, 12:09 UTC2h 20m
2026-07-16 AEE13 ATH → FRA Jul 16, 05:30 UTCJul 16, 08:15 UTC2h 45m
2026-07-16 AEE3CQ - Jul 16, 03:10 UTCJul 16, 03:45 UTC35m
2026-07-16 AEE330 - Jul 16, 01:45 UTCJul 16, 02:10 UTC25m
2026-07-15 AEE82B BER → ATH Jul 15, 19:30 UTCJul 15, 21:50 UTC2h 20m
2026-07-15 AEE8DT ATH → BER Jul 15, 15:25 UTCJul 15, 18:05 UTC2h 40m
2026-07-15 AEE4BT - Jul 15, 11:30 UTCJul 15, 14:00 UTC2h 30m
2026-07-15 AEE9W ATH → DUS Jul 15, 07:00 UTCJul 15, 10:00 UTC3h 0m
2026-07-14 AEE927 TLV → ATH Jul 14, 17:40 UTCJul 14, 19:20 UTC1h 40m
2026-07-14 AEE926 ATH → TLV Jul 14, 14:50 UTCJul 14, 16:25 UTC1h 35m
2026-07-14 AEE315 - Jul 14, 12:40 UTCJul 14, 13:10 UTC30m
2026-07-14 AEE1K - Jul 14, 10:55 UTCJul 14, 11:25 UTC30m
2026-07-14 AEE307 - Jul 14, 09:10 UTCJul 14, 09:40 UTC30m
2026-07-14 AEE306 - Jul 14, 07:25 UTCJul 14, 07:50 UTC25m
2026-07-14 AEE3IR - Jul 14, 05:30 UTCJul 14, 06:05 UTC35m
2026-07-14 AEE3KN - Jul 14, 04:00 UTCJul 14, 04:25 UTC25m
2026-07-13 AEE909 LCA → ATH Jul 13, 18:40 UTCJul 13, 20:05 UTC1h 25m
2026-07-13 AEE908 ATH → LCA Jul 13, 16:10 UTCJul 13, 17:30 UTC1h 20m
2026-07-13 AEE52R LCA → ATH Jul 13, 13:20 UTCJul 13, 14:45 UTC1h 25m
2026-07-13 AEE904 ATH → LCA Jul 13, 10:35 UTCJul 13, 11:55 UTC1h 20m
2026-07-13 AEE3LK - Jul 13, 07:35 UTCJul 13, 09:05 UTC1h 30m
2026-07-13 AEE2LK - Jul 13, 05:05 UTCJul 13, 06:20 UTC1h 15m
2026-07-12 AEE82B BER → ATH Jul 12, 20:10 UTCJul 12, 22:30 UTC2h 20m
2026-07-12 AEE8DT ATH → BER Jul 12, 16:05 UTCJul 12, 18:40 UTC2h 35m
2026-07-12 AEE7MA - Jul 12, 11:30 UTCJul 12, 14:25 UTC2h 55m
2026-07-12 AEE7LD ATH → MAD Jul 12, 06:25 UTCJul 12, 09:45 UTC3h 20m
2026-07-11 AEE7RE PRG → ATH Jul 11, 17:40 UTCJul 11, 19:40 UTC2h 0m
2026-07-11 AEE866 ATH → PRG Jul 11, 14:15 UTCJul 11, 16:25 UTC2h 10m
2026-07-11 AEE751 CPH → ATH Jul 11, 09:55 UTCJul 11, 12:35 UTC2h 40m
2026-07-11 AEE750 ATH → CPH Jul 11, 05:40 UTCJul 11, 08:40 UTC3h 0m
2026-07-10 AEE383 - Jul 10, 21:35 UTCJul 10, 21:55 UTC20m
2026-07-10 AEE382 ATH → JMK Jul 10, 20:30 UTCJul 10, 20:55 UTC25m
2026-07-10 AEE647 - Jul 10, 16:40 UTCJul 10, 19:05 UTC2h 25m
2026-07-10 AEE8VS - Jul 10, 12:25 UTCJul 10, 14:55 UTC2h 30m
2026-07-10 AEE6PX MXP → ATH Jul 10, 09:05 UTCJul 10, 11:05 UTC2h 0m
2026-07-10 AEE6IM ATH → MXP Jul 10, 05:10 UTCJul 10, 07:20 UTC2h 10m
2026-07-09 AEE82B - Jul 9, 19:15 UTCJul 9, 21:20 UTC2h 5m
2026-07-09 AEE8DT ATH → BER Jul 9, 15:20 UTCJul 9, 18:05 UTC2h 45m
2026-07-09 AEE4BT - Jul 9, 11:25 UTCJul 9, 13:55 UTC2h 30m
2026-07-09 AEE9W ATH → DUS Jul 9, 06:55 UTCJul 9, 10:05 UTC3h 10m
2026-07-08 AEE995 - Jul 8, 18:45 UTCJul 8, 19:40 UTC55m
2026-07-08 AEE994 - Jul 8, 16:05 UTCJul 8, 17:05 UTC1h 0m

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?
Mode-S 46B821 is currently broadcasting from the ground.
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.