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sensors Mode-S transponder

4A0D12

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-CHR · AIRBUS A220-100

Hex
4A0D12
Octal
22406422
Decimal
4,853,010
Country
RO
Tail
YR-CHR
Type
BCS1
No current signal · last broadcast Jul 26, 19:50 UTC
Flights observed
484
Distinct callsigns
20
Country
RO
Last broadcast
Jul 26, 19:50 UTC

Last known position

Most recent position reported by Mode-S 4A0D12.

Country allocation

The ICAO 24-bit address 4A0D12 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 - 24 2026-06-29
AWG101L - 22 2026-06-29
AWG655 Animawings 21 2026-07-24
AWG654R - 21 2026-07-24
AWG681 Animawings 20 2026-07-24
AWG680H - 20 2026-07-24
AWG601K Animawings 17 2026-07-26
AWG600N - 15 2026-07-26
AWG137G Animawings 14 2026-07-23
AWG136Z Animawings 14 2026-07-23
AWG107R Animawings 13 2026-07-26
AWG117L - 12 2026-07-22
AWG116P - 12 2026-07-22
AWG651R - 11 2026-07-21
AWG106Q - 11 2026-07-26
AWG650 - 10 2026-07-21
AWG121 - 10 2026-07-07
AWG120R - 9 2026-07-07
AWG725 Animawings 8 2026-07-20
AWG724T - 8 2026-07-20

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AWG107R CLJ → OTP Jul 26, 19:20 UTCJul 26, 19:50 UTC30m
2026-07-26 AWG106Q - Jul 26, 18:00 UTCJul 26, 18:30 UTC30m
2026-07-26 AWG601K CDG → OTP Jul 26, 14:30 UTCJul 26, 16:45 UTC2h 15m
2026-07-26 AWG600N - Jul 26, 10:25 UTCJul 26, 13:10 UTC2h 45m
2026-07-26 AWG631 IBZ → OTP Jul 26, 06:45 UTCJul 26, 09:10 UTC2h 25m
2026-07-26 AWG630X OTP → IBZ Jul 26, 02:00 UTCJul 26, 05:20 UTC3h 20m
2026-07-25 AWG4269 - Jul 25, 14:10 UTCJul 25, 15:40 UTC1h 30m
2026-07-25 AWG4228 - Jul 25, 10:30 UTCJul 25, 12:45 UTC2h 15m
2026-07-25 AWG4229 - Jul 25, 07:45 UTCJul 25, 09:15 UTC1h 30m
2026-07-25 AWG4268 - Jul 25, 04:40 UTCJul 25, 06:05 UTC1h 25m
2026-07-24 AWG655 LGW → OTP Jul 24, 21:30 UTCJul 25, 00:10 UTC2h 40m
2026-07-24 AWG654R - Jul 24, 17:15 UTCJul 24, 20:10 UTC2h 55m
2026-07-24 AWG681 GVA → OTP Jul 24, 13:45 UTCJul 24, 15:50 UTC2h 5m
2026-07-24 AWG680H - Jul 24, 10:25 UTCJul 24, 12:45 UTC2h 20m
2026-07-24 AWG621R MUC → OTP Jul 24, 07:35 UTCJul 24, 09:05 UTC1h 30m
2026-07-24 AWG620Q OTP → MUC Jul 24, 04:30 UTCJul 24, 06:15 UTC1h 45m
2026-07-23 AWG137G IAS → OTP Jul 23, 18:40 UTCJul 23, 19:10 UTC30m
2026-07-23 AWG136Z OTP → IAS Jul 23, 17:10 UTCJul 23, 17:35 UTC25m
2026-07-23 AWG607 NCE → OTP Jul 23, 13:30 UTCJul 23, 15:25 UTC1h 55m
2026-07-23 AWG606Q - Jul 23, 09:55 UTCJul 23, 12:20 UTC2h 25m
2026-07-23 AWG673 PRG → OTP Jul 23, 07:10 UTCJul 23, 08:40 UTC1h 30m
2026-07-23 AWG672P - Jul 23, 04:10 UTCJul 23, 05:50 UTC1h 40m
2026-07-22 AWG655 LGW → OTP Jul 22, 21:35 UTCJul 23, 00:05 UTC2h 30m
2026-07-22 AWG654R - Jul 22, 17:20 UTCJul 22, 20:25 UTC3h 5m
2026-07-22 AWG117L OMR → OTP Jul 22, 15:05 UTCJul 22, 15:50 UTC45m
2026-07-22 AWG116P - Jul 22, 13:30 UTCJul 22, 14:15 UTC45m
2026-07-22 AWG630X - Jul 22, 04:05 UTCJul 22, 10:25 UTC6h 20m
2026-07-21 AWG625 - Jul 21, 18:05 UTCJul 21, 19:35 UTC1h 30m
2026-07-21 AWG624D - Jul 21, 15:00 UTCJul 21, 16:50 UTC1h 50m
2026-07-21 AWG651R LGW → OTP Jul 21, 10:55 UTCJul 21, 13:25 UTC2h 30m
2026-07-21 AWG650 - Jul 21, 06:15 UTCJul 21, 09:15 UTC3h 0m
2026-07-20 AWG107R CLJ → OTP Jul 20, 20:30 UTCJul 20, 21:00 UTC30m
2026-07-20 AWG106Q - Jul 20, 18:55 UTCJul 20, 19:25 UTC30m
2026-07-20 AWG681 GVA → OTP Jul 20, 15:50 UTCJul 20, 17:50 UTC2h 0m
2026-07-20 AWG680H - Jul 20, 12:10 UTCJul 20, 14:40 UTC2h 30m
2026-07-20 AWG725 IST → OTP Jul 20, 10:35 UTCJul 20, 10:55 UTC20m
2026-07-20 AWG724T - Jul 20, 07:55 UTCJul 20, 08:55 UTC1h 0m
2026-07-20 AWG131P IAS → OTP Jul 20, 06:00 UTCJul 20, 06:25 UTC25m
2026-07-20 AWG130Y OTP → IAS Jul 20, 04:35 UTCJul 20, 05:00 UTC25m
2026-07-07 AWG4127 RHO → OTP Jul 7, 18:10 UTCJul 7, 19:45 UTC1h 35m
2026-07-07 AWG4126 - Jul 7, 15:40 UTCJul 7, 17:10 UTC1h 30m
2026-07-07 AWG651R LGW → OTP Jul 7, 11:50 UTCJul 7, 14:30 UTC2h 40m
2026-07-07 AWG650 - Jul 7, 07:20 UTCJul 7, 10:35 UTC3h 15m
2026-07-07 AWG121 - Jul 7, 05:40 UTCJul 7, 06:15 UTC35m
2026-07-07 AWG120R - Jul 7, 04:00 UTCJul 7, 04:30 UTC30m
2026-07-06 AWG725 - Jul 6, 17:00 UTCJul 6, 17:45 UTC45m
2026-07-06 AWG724T - Jul 6, 14:40 UTCJul 6, 15:35 UTC55m
2026-07-06 AWG6001 MST → SOF Jul 6, 12:20 UTCJul 6, 13:00 UTC40m
2026-07-06 AWG721P IST → TSR Jul 6, 10:00 UTCJul 6, 11:00 UTC1h 0m
2026-07-06 AWG720F - Jul 6, 07:40 UTCJul 6, 08:55 UTC1h 15m

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

Mode-S 4A0D12 frequently asked

What is Mode-S code 4A0D12?
4A0D12 is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-CHR.
Where is Mode-S 4A0D12 registered?
Mode-S code 4A0D12 is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A0D12 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 19:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A0D12, octal 22406422, decimal 4,853,010.
What flights does 4A0D12 operate?
Mode-S 4A0D12 has broadcast 20 distinct callsigns, including AWG100, AWG101L, AWG655, AWG654R, AWG681.