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sensors Mode-S transponder

4A1AAE

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-FUN · AIRBUS A220-100

Hex
4A1AAE
Octal
22415256
Decimal
4,856,494
Country
RO
Tail
YR-FUN
Type
BCS1
No current signal · last broadcast 2h ago
Flights observed
425
Distinct callsigns
20
Country
RO
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4A1AAE.

Country allocation

The ICAO 24-bit address 4A1AAE falls within the block assigned to Romania (RO) by ICAO Annex 10, Volume III. Every aircraft registered in Romania 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
AWG100 - 20 2026-07-13
AWG107R - 19 2026-07-12
AWG601K - 18 2026-07-13
AWG600N - 18 2026-07-13
AWG117L - 18 2026-07-13
AWG116P - 18 2026-07-13
AWG101L - 18 2026-07-13
AWG106Q - 15 2026-07-12
AWG606Q - 10 2026-07-09
AWG136Z - 10 2026-07-13
AWG121 - 10 2026-07-14
AWG681 Animawings 9 2026-07-06
AWG680H - 9 2026-07-06
AWG607 Animawings 9 2026-07-09
AWG137G - 9 2026-07-13
AWG120R - 9 2026-07-14
AWG725 - 8 2026-06-22
AWG724T - 8 2026-06-22
AWG131P - 7 2026-07-10
AWG130Y - 7 2026-07-10

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AWG625 MUC → OTP Jul 14, 17:50 UTCJul 14, 19:15 UTC1h 25m
2026-07-14 AWG624D - Jul 14, 15:05 UTCJul 14, 16:50 UTC1h 45m
2026-07-14 AWG121 - Jul 14, 05:35 UTCJul 14, 06:10 UTC35m
2026-07-14 AWG120R - Jul 14, 03:55 UTCJul 14, 04:30 UTC35m
2026-07-13 AWG137G - Jul 13, 20:00 UTCJul 13, 20:30 UTC30m
2026-07-13 AWG136Z - Jul 13, 18:20 UTCJul 13, 18:45 UTC25m
2026-07-13 AWG117L OMR → OTP Jul 13, 16:40 UTCJul 13, 17:20 UTC40m
2026-07-13 AWG116P - Jul 13, 15:05 UTCJul 13, 15:45 UTC40m
2026-07-13 AWG601K - Jul 13, 11:40 UTCJul 13, 14:05 UTC2h 25m
2026-07-13 AWG600N - Jul 13, 07:50 UTCJul 13, 10:40 UTC2h 50m
2026-07-13 AWG101L - Jul 13, 05:55 UTCJul 13, 06:25 UTC30m
2026-07-13 AWG100 - Jul 13, 04:30 UTCJul 13, 05:01 UTC30m
2026-07-12 AWG107R - Jul 12, 19:05 UTCJul 12, 19:35 UTC30m
2026-07-12 AWG106Q - Jul 12, 17:35 UTCJul 12, 18:05 UTC30m
2026-07-12 AWG601K - Jul 12, 14:15 UTCJul 12, 16:30 UTC2h 15m
2026-07-12 AWG600N - Jul 12, 10:25 UTCJul 12, 13:10 UTC2h 45m
2026-07-12 AWG631 IBZ → OTP Jul 12, 06:30 UTCJul 12, 09:10 UTC2h 40m
2026-07-12 AWG630X - Jul 12, 02:05 UTCJul 12, 05:15 UTC3h 10m
2026-07-11 AWG4151 AMM → OTP Jul 11, 19:20 UTCJul 11, 20:45 UTC1h 25m
2026-07-11 AWG4150 OTP → AMM Jul 11, 16:35 UTCJul 11, 18:15 UTC1h 40m
2026-07-11 AWG4269 - Jul 11, 13:40 UTCJul 11, 15:05 UTC1h 25m
2026-07-11 AWG4229 - Jul 11, 07:50 UTCJul 11, 12:30 UTC4h 40m
2026-07-11 AWG4268 - Jul 11, 05:01 UTCJul 11, 06:30 UTC1h 30m
2026-07-10 AWG643 MXP → OTP Jul 10, 18:50 UTCJul 10, 20:40 UTC1h 50m
2026-07-10 AWG642J OTP → MXP Jul 10, 15:05 UTCJul 10, 17:20 UTC2h 15m
2026-07-10 AWG601K - Jul 10, 11:35 UTCJul 10, 13:55 UTC2h 20m
2026-07-10 AWG600N - Jul 10, 07:30 UTCJul 10, 10:15 UTC2h 45m
2026-07-10 AWG131P - Jul 10, 06:05 UTCJul 10, 06:20 UTC15m
2026-07-10 AWG130Y - Jul 10, 04:15 UTCJul 10, 04:40 UTC25m
2026-07-09 AWG117L - Jul 9, 18:20 UTCJul 9, 19:00 UTC40m
2026-07-09 AWG116P - Jul 9, 16:45 UTCJul 9, 17:30 UTC45m
2026-07-09 AWG607 NCE → OTP Jul 9, 13:30 UTCJul 9, 15:25 UTC1h 55m
2026-07-09 AWG606Q - Jul 9, 09:50 UTCJul 9, 12:00 UTC2h 10m
2026-07-09 AWG673 - Jul 9, 07:05 UTCJul 9, 08:30 UTC1h 25m
2026-07-09 AWG672P - Jul 9, 04:15 UTCJul 9, 05:55 UTC1h 40m
2026-07-08 AWG643 MXP → OTP Jul 8, 19:10 UTCJul 8, 20:55 UTC1h 45m
2026-07-08 AWG642J - Jul 8, 15:10 UTCJul 8, 17:20 UTC2h 10m
2026-07-08 AWG601K - Jul 8, 11:40 UTCJul 8, 13:55 UTC2h 15m
2026-07-08 AWG600N - Jul 8, 07:35 UTCJul 8, 10:30 UTC2h 55m
2026-07-08 AWG101L - Jul 8, 05:40 UTCJul 8, 06:10 UTC30m
2026-07-08 AWG100 - Jul 8, 04:10 UTCJul 8, 04:40 UTC30m
2026-07-07 AWG6003 - Jul 7, 23:40 UTCJul 8, 00:15 UTC35m
2026-07-07 AWG4139 HER → SBZ Jul 7, 21:20 UTCJul 7, 22:50 UTC1h 30m
2026-07-07 AWG4154 SBZ → HER Jul 7, 18:40 UTCJul 7, 20:10 UTC1h 30m
2026-07-07 AWG6002 - Jul 7, 17:20 UTCJul 7, 17:40 UTC20m
2026-07-07 AWG107R - Jul 7, 15:40 UTCJul 7, 16:15 UTC35m
2026-07-07 AWG745G - Jul 7, 13:10 UTCJul 7, 14:15 UTC1h 5m
2026-07-07 AWG746 IAS → SKG Jul 7, 10:40 UTCJul 7, 11:50 UTC1h 10m
2026-07-07 AWG747K SKG → IAS Jul 7, 08:10 UTCJul 7, 09:15 UTC1h 5m
2026-07-07 AWG744W - Jul 7, 05:55 UTCJul 7, 07:00 UTC1h 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 YR-FUN page for operator, model, and routing details .

Mode-S 4A1AAE frequently asked

What is Mode-S code 4A1AAE?
4A1AAE is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-FUN.
Where is Mode-S 4A1AAE registered?
Mode-S code 4A1AAE is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A1AAE broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A1AAE, octal 22415256, decimal 4,856,494.
What flights does 4A1AAE operate?
Mode-S 4A1AAE has broadcast 20 distinct callsigns, including AWG100, AWG107R, AWG601K, AWG600N, AWG117L.