sensors Mode-S transponder

4A08EA

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-BGJ · BOEING 737-800

Hex
4A08EA
Octal
22404352
Decimal
4,851,946
Country
RO
Tail
YR-BGJ
Type
B738
No current signal · last broadcast 2h ago
Flights observed
481
Distinct callsigns
20
Country
RO
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 4A08EA.

Country allocation

The ICAO 24-bit address 4A08EA 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
ROT363T - 20 2026-06-30
ROT381T - 19 2026-07-14
ROT364Q - 19 2026-06-24
ROT382A - 18 2026-07-14
ROT648P - 15 2026-07-03
ROT647M - 15 2026-07-03
ROT362Q Tarom 12 2026-05-31
ROT361U Tarom 12 2026-05-31
ROT273L - 12 2026-07-03
ROT155 - 12 2026-07-14
ROT274K - 11 2026-07-03
ROT156 - 11 2026-07-14
ROT7367 - 9 2026-07-11
ROT302R Tarom 9 2026-05-28
ROT301V Tarom 9 2026-05-28
ROT7368 - 8 2026-06-20
ROT608L - 8 2026-07-14
ROT607R - 8 2026-07-14
ROT416M Tarom 7 2026-05-27
ROT415K Tarom 7 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 ROT156 TLV → OTP Jul 14, 22:20 UTCJul 15, 00:30 UTC2h 9m
2026-07-14 ROT155 - Jul 14, 18:35 UTCJul 14, 20:50 UTC2h 15m
2026-07-14 ROT608L - Jul 14, 16:25 UTCJul 14, 16:55 UTC30m
2026-07-14 ROT607R - Jul 14, 14:55 UTCJul 14, 15:25 UTC30m
2026-07-14 ROT382A - Jul 14, 11:20 UTCJul 14, 13:40 UTC2h 20m
2026-07-14 ROT381T - Jul 14, 06:35 UTCJul 14, 09:20 UTC2h 45m
2026-07-13 ROT7132 AYT → OTP Jul 13, 18:05 UTCJul 13, 19:25 UTC1h 20m
2026-07-13 ROT7134 - Jul 13, 12:15 UTCJul 13, 13:45 UTC1h 30m
2026-07-13 ROT7135 - Jul 13, 09:40 UTCJul 13, 11:05 UTC1h 25m
2026-07-13 ROT7136 - Jul 13, 06:30 UTCJul 13, 07:50 UTC1h 20m
2026-07-13 ROT7131 - Jul 13, 03:40 UTCJul 13, 05:05 UTC1h 25m
2026-07-12 ROT2154 - Jul 12, 22:40 UTCJul 12, 23:55 UTC1h 15m
2026-07-12 ROT2153 - Jul 12, 18:20 UTCJul 12, 20:30 UTC2h 10m
2026-07-12 ROT8731 - Jul 12, 10:05 UTCJul 12, 16:45 UTC6h 40m
2026-07-12 ROT6472 - Jul 12, 06:40 UTCJul 12, 08:01 UTC1h 20m
2026-07-12 ROT6471 - Jul 12, 03:45 UTCJul 12, 05:30 UTC1h 45m
2026-07-11 ROT7367 - Jul 11, 16:40 UTCJul 11, 23:20 UTC6h 40m
2026-07-11 ROT7832 - Jul 11, 13:15 UTCJul 11, 14:40 UTC1h 25m
2026-07-11 ROT7833 OMR → AYT Jul 11, 09:50 UTCJul 11, 12:00 UTC2h 10m
2026-07-11 ROT7834 - Jul 11, 07:10 UTCJul 11, 09:00 UTC1h 50m
2026-07-11 ROT7831 - Jul 11, 05:10 UTCJul 11, 05:31 UTC20m
2026-07-11 ROT7831 - Jul 11, 03:50 UTCJul 11, 05:05 UTC1h 15m
2026-07-10 ROT6452 - Jul 10, 19:30 UTCJul 10, 21:00 UTC1h 30m
2026-07-10 ROT6453 - Jul 10, 16:00 UTCJul 10, 17:55 UTC1h 55m
2026-07-10 ROT6454 - Jul 10, 13:00 UTCJul 10, 14:40 UTC1h 40m
2026-07-10 ROT6455 - Jul 10, 09:30 UTCJul 10, 11:15 UTC1h 45m
2026-07-10 ROT6456 - Jul 10, 06:35 UTCJul 10, 08:15 UTC1h 40m
2026-07-10 ROT6451 - Jul 10, 03:45 UTCJul 10, 05:15 UTC1h 30m
2026-07-09 ROT156 TLV → OTP Jul 9, 22:30 UTCJul 10, 00:45 UTC2h 15m
2026-07-09 ROT155 - Jul 9, 18:25 UTCJul 9, 20:45 UTC2h 20m
2026-07-09 ROT7422 - Jul 9, 12:40 UTCJul 9, 14:10 UTC1h 30m
2026-07-09 ROT7421 - Jul 9, 10:15 UTCJul 9, 11:40 UTC1h 25m
2026-07-09 ROT7432 - Jul 9, 07:05 UTCJul 9, 08:35 UTC1h 30m
2026-07-09 ROT7431 - Jul 9, 04:15 UTCJul 9, 05:40 UTC1h 25m
2026-07-08 ROT8332 - Jul 8, 16:55 UTCJul 8, 17:55 UTC1h 0m
2026-07-08 ROT8333 - Jul 8, 14:40 UTCJul 8, 15:30 UTC50m
2026-07-08 ROT8334 - Jul 8, 12:50 UTCJul 8, 13:40 UTC50m
2026-07-08 ROT8331 - Jul 8, 10:30 UTCJul 8, 11:15 UTC45m
2026-07-08 ROT7332 - Jul 8, 07:20 UTCJul 8, 08:40 UTC1h 20m
2026-07-08 ROT7331 - Jul 8, 04:25 UTCJul 8, 05:55 UTC1h 30m
2026-07-07 ROT156 TLV → OTP Jul 7, 21:55 UTCJul 8, 00:05 UTC2h 10m
2026-07-07 ROT155 - Jul 7, 18:20 UTCJul 7, 20:25 UTC2h 5m
2026-07-07 ROT608L - Jul 7, 16:10 UTCJul 7, 16:50 UTC40m
2026-07-07 ROT607R - Jul 7, 14:50 UTCJul 7, 15:20 UTC30m
2026-07-07 ROT382A - Jul 7, 11:00 UTCJul 7, 13:25 UTC2h 25m
2026-07-07 ROT381T - Jul 7, 06:35 UTCJul 7, 09:15 UTC2h 40m
2026-07-06 ROT7132 - Jul 6, 18:20 UTCJul 6, 19:45 UTC1h 25m
2026-07-06 ROT7133 - Jul 6, 15:15 UTCJul 6, 16:50 UTC1h 35m
2026-07-06 ROT7134 - Jul 6, 12:35 UTCJul 6, 14:10 UTC1h 35m
2026-07-06 ROT7135 - Jul 6, 09:55 UTCJul 6, 11:15 UTC1h 20m

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

Mode-S 4A08EA frequently asked

What is Mode-S code 4A08EA?
4A08EA is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-BGJ.
Where is Mode-S 4A08EA registered?
Mode-S code 4A08EA is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A08EA 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 4A08EA, octal 22404352, decimal 4,851,946.
What flights does 4A08EA operate?
Mode-S 4A08EA has broadcast 20 distinct callsigns, including ROT363T, ROT381T, ROT364Q, ROT382A, ROT648P.