Apparatus

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sensors Mode-S transponder

4A5D2E

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-WIN · AIRBUS A-321neo

Hex
4A5D2E
Octal
22456456
Decimal
4,873,518
Country
RO
Tail
YR-WIN
Type
A21N
Broadcasting now · callsign HYS474 · 37,000 ft
Flights observed
50
Distinct callsigns
20
Country
RO
Last broadcast
Jul 26, 21:30 UTC

Current position

4A5D2E is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4A5D2E 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
HYS8712 - 3 2026-07-26
HYS236 HiSky Europe 3 2026-07-26
HYS235 HiSky Europe 3 2026-07-26
HYS8711 - 2 2026-07-26
HYS8304 - 2 2026-07-22
HYS8303 - 2 2026-07-15
HYS7616 - 2 2026-07-25
HYS7552 - 2 2026-07-24
HYS7551 - 2 2026-07-24
HYS7414 - 2 2026-07-23
HYS7413 - 2 2026-07-23
HYS7201 - 2 2026-07-21
HYS7122 - 2 2026-07-20
HYS7121 - 2 2026-07-20
HYS7108 - 2 2026-07-20
HYS7107 - 2 2026-07-20
HYS222 HiSky Europe 2 2026-07-19
HYS221 HiSky Europe 2 2026-07-19
HYS8512 - 1 2026-07-17
HYS7615 - 1 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 HYS237 OTP → TLV Jul 26, 19:25 UTCJul 26, 21:30 UTC2h 5m
2026-07-26 HYS8712 - Jul 26, 15:30 UTCJul 26, 18:00 UTC2h 30m
2026-07-26 HYS8711 - Jul 26, 11:15 UTCJul 26, 13:35 UTC2h 20m
2026-07-26 HYS236 TLV → OTP Jul 26, 07:30 UTCJul 26, 09:45 UTC2h 15m
2026-07-26 HYS235 OTP → TLV Jul 26, 03:45 UTCJul 26, 05:50 UTC2h 5m
2026-07-25 HYS7612 - Jul 25, 13:25 UTCJul 25, 20:20 UTC6h 55m
2026-07-25 HYS7616 - Jul 25, 05:10 UTCJul 25, 12:00 UTC6h 50m
2026-07-24 HYS7551 - Jul 24, 13:30 UTCJul 24, 20:20 UTC6h 50m
2026-07-24 HYS7552 - Jul 24, 05:10 UTCJul 24, 12:05 UTC6h 55m
2026-07-23 HYS7413 - Jul 23, 13:35 UTCJul 23, 20:20 UTC6h 45m
2026-07-23 HYS7414 - Jul 23, 05:15 UTCJul 23, 12:10 UTC6h 55m
2026-07-23 FOE8442 - Jul 23, 02:25 UTCJul 23, 03:50 UTC1h 25m
2026-07-22 FOE8441 - Jul 22, 23:55 UTCJul 23, 01:20 UTC1h 25m
2026-07-22 HYS8304 - Jul 22, 04:45 UTCJul 22, 15:35 UTC10h 50m
2026-07-21 HYS7201 - Jul 21, 11:50 UTCJul 21, 23:45 UTC11h 55m
2026-07-21 HYS254 TSR → OTP Jul 21, 07:05 UTCJul 21, 07:45 UTC40m
2026-07-21 HYS253 OTP → TSR Jul 21, 05:35 UTCJul 21, 06:15 UTC40m
2026-07-20 HYS7108 - Jul 20, 20:35 UTCJul 20, 23:00 UTC2h 25m
2026-07-20 HYS7107 - Jul 20, 16:15 UTCJul 20, 19:05 UTC2h 50m
2026-07-20 HYS236 TLV → OTP Jul 20, 12:40 UTCJul 20, 14:50 UTC2h 10m
2026-07-20 HYS235 OTP → TLV Jul 20, 08:45 UTCJul 20, 11:00 UTC2h 15m
2026-07-20 HYS7122 - Jul 20, 04:20 UTCJul 20, 05:45 UTC1h 25m
2026-07-20 HYS7121 - Jul 20, 01:40 UTCJul 20, 03:00 UTC1h 20m
2026-07-19 HYS222 CDG → OTP Jul 19, 16:20 UTCJul 19, 18:25 UTC2h 5m
2026-07-19 HYS221 OTP → CDG Jul 19, 12:20 UTCJul 19, 15:10 UTC2h 50m
2026-07-19 HYS8712 - Jul 19, 03:25 UTCJul 19, 10:15 UTC6h 50m
2026-07-18 HYS7615 - Jul 18, 13:40 UTCJul 18, 20:35 UTC6h 55m
2026-07-18 HYS7616 - Jul 18, 05:10 UTCJul 18, 12:25 UTC7h 15m
2026-07-17 HYS8512 - Jul 17, 17:50 UTCJul 17, 20:25 UTC2h 35m
2026-07-17 HYS7551 - Jul 17, 13:29 UTCJul 17, 16:04 UTC2h 35m
2026-07-17 HYS7552 - Jul 17, 05:10 UTCJul 17, 12:00 UTC6h 50m
2026-07-16 HYS7413 - Jul 16, 13:54 UTCJul 16, 20:35 UTC6h 40m
2026-07-16 HYS7414 - Jul 16, 09:45 UTCJul 16, 12:25 UTC2h 40m
2026-07-16 HYS7411 - Jul 16, 05:20 UTCJul 16, 07:40 UTC2h 20m
2026-07-15 HYS8304 - Jul 15, 11:35 UTCJul 15, 16:10 UTC4h 35m
2026-07-15 HYS8303 - Jul 15, 09:45 UTCJul 15, 10:00 UTC15m
2026-07-15 HYS8303 - Jul 15, 04:45 UTCJul 15, 09:15 UTC4h 30m
2026-07-14 HYS7202 - Jul 14, 18:50 UTCJul 14, 23:20 UTC4h 29m
2026-07-14 HYS7201 - Jul 14, 11:35 UTCJul 14, 16:50 UTC5h 15m
2026-07-13 HYS7108 - Jul 13, 20:05 UTCJul 13, 22:35 UTC2h 30m
2026-07-13 HYS7107 - Jul 13, 15:40 UTCJul 13, 18:25 UTC2h 45m
2026-07-13 HYS236 - Jul 13, 12:15 UTCJul 13, 14:30 UTC2h 15m
2026-07-13 HYS235 - Jul 13, 08:20 UTCJul 13, 10:40 UTC2h 20m
2026-07-13 HYS7122 - Jul 13, 04:35 UTCJul 13, 05:55 UTC1h 20m
2026-07-13 HYS7121 - Jul 13, 01:45 UTCJul 13, 03:15 UTC1h 30m
2026-07-12 HYS222 - Jul 12, 17:15 UTCJul 12, 19:25 UTC2h 10m
2026-07-12 HYS221 - Jul 12, 13:10 UTCJul 12, 16:01 UTC2h 50m
2026-07-12 HYS8712 - Jul 12, 09:35 UTCJul 12, 12:05 UTC2h 30m
2026-07-12 HYS8711 - Jul 12, 05:15 UTCJul 12, 07:40 UTC2h 25m
2026-07-12 HYS30P - Jul 12, 03:30 UTCJul 12, 03:50 UTC20m

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

Mode-S 4A5D2E frequently asked

What is Mode-S code 4A5D2E?
4A5D2E is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-WIN.
Where is Mode-S 4A5D2E registered?
Mode-S code 4A5D2E is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A5D2E broadcasting right now?
Yes. Mode-S 4A5D2E is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A5D2E, octal 22456456, decimal 4,873,518.
What flights does 4A5D2E operate?
Mode-S 4A5D2E has broadcast 20 distinct callsigns, including HYS8712, HYS236, HYS235, HYS8711, HYS8304.