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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 Jul 19, 20:45 UTC
Flights observed
457
Distinct callsigns
20
Country
RO
Last broadcast
Jul 19, 20:45 UTC

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 - 23 2026-07-17
AWG101L - 21 2026-07-17
AWG107R - 20 2026-07-15
AWG601K - 19 2026-07-17
AWG600N - 19 2026-07-17
AWG117L - 18 2026-07-13
AWG116P - 18 2026-07-13
AWG106Q - 16 2026-07-15
AWG136Z - 11 2026-07-16
AWG681 Animawings 10 2026-07-15
AWG680H - 10 2026-07-15
AWG606Q - 10 2026-07-09
AWG137G - 10 2026-07-16
AWG121 - 10 2026-07-14
AWG725 - 9 2026-07-16
AWG724T - 9 2026-07-16
AWG607 Animawings 9 2026-07-09
AWG120R - 9 2026-07-14
AWG625 - 7 2026-07-19
AWG624D - 7 2026-07-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-19 AWG625 MUC → OTP Jul 19, 19:15 UTCJul 19, 20:45 UTC1h 30m
2026-07-19 AWG624D - Jul 19, 16:20 UTCJul 19, 18:05 UTC1h 45m
2026-07-19 AWG611N ARN → OTP Jul 19, 12:30 UTCJul 19, 15:05 UTC2h 35m
2026-07-19 AWG610M - Jul 19, 09:00 UTCJul 19, 11:25 UTC2h 25m
2026-07-19 AWG4103 CFU → OTP Jul 19, 06:45 UTCJul 19, 07:45 UTC1h 0m
2026-07-19 AWG4102 OTP → CFU Jul 19, 03:30 UTCJul 19, 04:25 UTC55m
2026-07-18 AWG4151 AMM → OTP Jul 18, 21:10 UTCJul 18, 22:40 UTC1h 30m
2026-07-18 AWG4150 OTP → AMM Jul 18, 17:30 UTCJul 18, 19:00 UTC1h 30m
2026-07-18 AWG4269 - Jul 18, 13:15 UTCJul 18, 14:45 UTC1h 30m
2026-07-18 AWG4228 - Jul 18, 10:25 UTCJul 18, 12:05 UTC1h 40m
2026-07-18 AWG4229 - Jul 18, 07:40 UTCJul 18, 09:15 UTC1h 35m
2026-07-18 AWG4268 - Jul 18, 04:55 UTCJul 18, 06:35 UTC1h 40m
2026-07-17 AWG617 RTM → OTP Jul 17, 18:55 UTCJul 17, 21:10 UTC2h 15m
2026-07-17 AWG616 - Jul 17, 15:05 UTCJul 17, 17:40 UTC2h 35m
2026-07-17 AWG601K - Jul 17, 11:39 UTCJul 17, 14:00 UTC2h 20m
2026-07-17 AWG600N - Jul 17, 07:40 UTCJul 17, 10:20 UTC2h 40m
2026-07-17 AWG101L - Jul 17, 05:45 UTCJul 17, 06:15 UTC30m
2026-07-17 AWG100 - Jul 17, 04:14 UTCJul 17, 04:39 UTC25m
2026-07-16 AWG137G - Jul 16, 18:44 UTCJul 16, 19:14 UTC30m
2026-07-16 AWG136Z - Jul 16, 17:10 UTCJul 16, 17:40 UTC30m
2026-07-16 AWG725 - Jul 16, 14:20 UTCJul 16, 15:05 UTC45m
2026-07-16 AWG728R - Jul 16, 11:45 UTCJul 16, 12:55 UTC1h 10m
2026-07-16 AWG729 - Jul 16, 09:30 UTCJul 16, 10:29 UTC1h 0m
2026-07-16 AWG724T - Jul 16, 07:30 UTCJul 16, 08:20 UTC50m
2026-07-16 AWG101L - Jul 16, 05:50 UTCJul 16, 06:20 UTC30m
2026-07-16 AWG100 - Jul 16, 04:25 UTCJul 16, 04:55 UTC30m
2026-07-15 AWG107R - Jul 15, 19:00 UTCJul 15, 19:30 UTC30m
2026-07-15 AWG106Q - Jul 15, 17:40 UTCJul 15, 18:10 UTC30m
2026-07-15 AWG681 GVA → OTP Jul 15, 14:35 UTCJul 15, 16:35 UTC2h 0m
2026-07-15 AWG680H - Jul 15, 10:35 UTCJul 15, 13:00 UTC2h 25m
2026-07-15 AWG101L - Jul 15, 06:20 UTCJul 15, 06:55 UTC35m
2026-07-15 AWG100 - Jul 15, 04:40 UTCJul 15, 05:10 UTC30m
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

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 Jul 19, 20:45 UTC.
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, AWG101L, AWG107R, AWG601K, AWG600N.