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 Jul 26, 22:00 UTC
Flights observed
596
Distinct callsigns
20
Country
GR
Last broadcast
Jul 26, 22:00 UTC

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
AEE995 Aegean Airlines 5 2026-07-25
AEE994 Aegean Airlines 5 2026-07-25
AEE4BT - 5 2026-07-15
AEE8DT - 4 2026-07-15
AEE82B - 4 2026-07-15
AEE6TH Aegean Airlines 4 2026-07-19
AEE6BR - 4 2026-07-19
AEE5PL Aegean Airlines 4 2026-07-25
AEE4IG Aegean Airlines 4 2026-07-25
AEE3BR Aegean Airlines 4 2026-06-06
AEE909 - 3 2026-07-13
AEE908 - 3 2026-07-13
AEE855 Aegean Airlines 3 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AEE4SA CHQ → ATH Jul 26, 21:25 UTCJul 26, 21:55 UTC30m
2026-07-26 AEE34C ATH → CHQ Jul 26, 19:55 UTCJul 26, 20:20 UTC25m
2026-07-26 AEE5SA CHQ → ATH Jul 26, 17:35 UTCJul 26, 18:05 UTC30m
2026-07-26 AEE15Z ATH → CHQ Jul 26, 16:00 UTCJul 26, 16:25 UTC25m
2026-07-26 AEE339 CHQ → ATH Jul 26, 11:05 UTCJul 26, 11:30 UTC25m
2026-07-26 AEE338 ATH → CHQ Jul 26, 09:35 UTCJul 26, 10:00 UTC25m
2026-07-26 AEE333 CHQ → ATH Jul 26, 07:05 UTCJul 26, 07:40 UTC35m
2026-07-26 AEE3RE ATH → CHQ Jul 26, 05:25 UTCJul 26, 05:55 UTC30m
2026-07-26 AEE941 AMM → ATH Jul 26, 01:40 UTCJul 26, 03:35 UTC1h 55m
2026-07-25 AEE940 ATH → AMM Jul 25, 22:20 UTCJul 26, 00:05 UTC1h 45m
2026-07-25 AEE995 IST → ATH Jul 25, 19:05 UTCJul 25, 20:00 UTC55m
2026-07-25 AEE994 ATH → IST Jul 25, 16:35 UTCJul 25, 17:30 UTC55m
2026-07-25 AEE5PL CHQ → ATH Jul 25, 14:15 UTCJul 25, 14:45 UTC30m
2026-07-25 AEE4IG ATH → CHQ Jul 25, 12:40 UTCJul 25, 13:00 UTC20m
2026-07-25 AEE307 HER → ATH Jul 25, 09:15 UTCJul 25, 09:45 UTC30m
2026-07-25 AEE306 ATH → HER Jul 25, 07:35 UTCJul 25, 08:00 UTC25m
2026-07-25 AEE3IR HER → ATH Jul 25, 05:40 UTCJul 25, 06:15 UTC35m
2026-07-25 AEE3KN ATH → HER Jul 25, 03:55 UTCJul 25, 04:25 UTC30m
2026-07-24 AEE127 SKG → ATH Jul 24, 20:55 UTCJul 24, 21:35 UTC40m
2026-07-24 AEE3SW ATH → SKG Jul 24, 19:15 UTCJul 24, 19:55 UTC40m
2026-07-24 AEE691 NCE → ATH Jul 24, 15:35 UTCJul 24, 17:30 UTC1h 55m
2026-07-24 AEE690 ATH → NCE Jul 24, 11:35 UTCJul 24, 14:05 UTC2h 30m
2026-07-24 AEE5CO FCO → ATH Jul 24, 08:35 UTCJul 24, 10:00 UTC1h 25m
2026-07-24 AEE5RF ATH → FCO Jul 24, 05:00 UTCJul 24, 06:50 UTC1h 50m
2026-07-23 AEE995 IST → ATH Jul 23, 18:20 UTCJul 23, 19:25 UTC1h 5m
2026-07-23 AEE994 ATH → IST Jul 23, 15:50 UTCJul 23, 16:40 UTC50m
2026-07-23 AEE5PL CHQ → ATH Jul 23, 13:55 UTCJul 23, 14:25 UTC30m
2026-07-23 AEE4IG ATH → CHQ Jul 23, 12:25 UTCJul 23, 12:45 UTC20m
2026-07-23 AEE5CO FCO → ATH Jul 23, 09:00 UTCJul 23, 10:30 UTC1h 30m
2026-07-23 AEE5RF ATH → FCO Jul 23, 05:05 UTCJul 23, 06:50 UTC1h 45m
2026-07-22 AEE5IN MXP → ATH Jul 22, 18:45 UTCJul 22, 20:40 UTC1h 55m
2026-07-22 AEE4MI ATH → MXP Jul 22, 14:10 UTCJul 22, 16:25 UTC2h 15m
2026-07-22 AEE855 GVA → ATH Jul 22, 11:10 UTCJul 22, 12:10 UTC1h 0m
2026-07-22 AEE3CQ CHQ → ATH Jul 22, 03:10 UTCJul 22, 03:40 UTC30m
2026-07-21 AEE34C ATH → CHQ Jul 21, 19:55 UTCJul 21, 20:30 UTC35m
2026-07-21 AEE5RX - Jul 21, 17:05 UTCJul 21, 18:30 UTC1h 25m
2026-07-21 AEE65R - Jul 21, 13:50 UTCJul 21, 15:35 UTC1h 45m
2026-07-21 AEE2WD BER → ATH Jul 21, 10:05 UTCJul 21, 12:35 UTC2h 30m
2026-07-21 AEE8RB ATH → BER Jul 21, 05:55 UTCJul 21, 08:30 UTC2h 35m
2026-07-21 AEE931 CAI → ATH Jul 21, 02:50 UTCJul 21, 03:55 UTC1h 5m
2026-07-20 AEE930 ATH → CAI Jul 20, 23:40 UTCJul 21, 01:15 UTC1h 35m
2026-07-20 AEE1HE HER → ATH Jul 20, 19:55 UTCJul 20, 20:20 UTC25m
2026-07-20 AEE320 ATH → HER Jul 20, 18:15 UTCJul 20, 18:45 UTC30m
2026-07-20 AEE319 HER → ATH Jul 20, 16:25 UTCJul 20, 16:55 UTC30m
2026-07-20 AEE5K ATH → HER Jul 20, 14:15 UTCJul 20, 14:45 UTC30m
2026-07-20 AEE751 CPH → ATH Jul 20, 09:15 UTCJul 20, 12:10 UTC2h 55m
2026-07-20 AEE750 ATH → CPH Jul 20, 05:10 UTCJul 20, 08:05 UTC2h 55m
2026-07-19 AEE6BR BRU → ATH Jul 19, 18:25 UTCJul 19, 21:10 UTC2h 45m
2026-07-19 AEE6TH ATH → BRU Jul 19, 14:05 UTCJul 19, 17:10 UTC3h 5m
2026-07-19 AEE855 GVA → ATH Jul 19, 09:55 UTCJul 19, 12:05 UTC2h 10m

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 Jul 26, 22:00 UTC.
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.