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sensors Mode-S transponder

4A09B2

ICAO 24-bit transponder address · allocated to Romania

Currently assigned to YR-BMR · BOEING 737-700

Hex
4A09B2
Octal
22404662
Decimal
4,852,146
Country
RO
Tail
YR-BMR
Type
B737
Broadcasting now · callsign AEZ2114 · 10,950 ft
Flights observed
654
Distinct callsigns
20
Country
RO
Last broadcast
9h ago

Current position

4A09B2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4A09B2 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
AEZ41ST Aerial Transit Company 33 2026-06-06
AEZ8041 - 32 2026-06-20
AEZ8765 Aerial Transit Company 31 2026-06-06
AEZ48LG - 30 2026-06-20
AEZ70MH - 29 2026-07-12
AEZ22LO - 29 2026-07-12
AEZ12RG - 26 2026-07-12
AEZ2349 Aerial Transit Company 25 2026-06-21
AEZ2119 - 22 2026-07-13
AEZ300Z Aerial Transit Company 21 2026-06-06
AEZ2114 - 21 2026-07-13
AEZ44GR Aerial Transit Company 20 2026-05-30
AEZ965S - 18 2026-07-13
AEZ218D - 18 2026-07-13
AEZ2121 - 18 2026-07-13
AEZ2118 - 18 2026-07-13
AEZ112X - 18 2026-07-12
AEZ2126 - 16 2026-07-12
AEZ81GR Aerial Transit Company 15 2026-06-21
AEZ2127 - 15 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 AEZ2119 - Jul 13, 19:15 UTCJul 13, 20:05 UTC50m
2026-07-13 AEZ2118 - Jul 13, 16:40 UTCJul 13, 17:40 UTC1h 0m
2026-07-13 AEZ2121 - Jul 13, 13:35 UTCJul 13, 15:00 UTC1h 25m
2026-07-13 AEZ965S - Jul 13, 10:15 UTCJul 13, 11:45 UTC1h 30m
2026-07-13 AEZ218D - Jul 13, 07:55 UTCJul 13, 08:45 UTC50m
2026-07-13 AEZ2114 - Jul 13, 05:15 UTCJul 13, 06:15 UTC1h 0m
2026-07-13 AEZ2127 - Jul 13, 00:01 UTCJul 13, 01:10 UTC1h 10m
2026-07-12 AEZ2126 - Jul 12, 21:45 UTCJul 12, 23:00 UTC1h 15m
2026-07-12 AEZ2119 - Jul 12, 19:50 UTCJul 12, 20:45 UTC55m
2026-07-12 AEZ70MH - Jul 12, 18:01 UTCJul 12, 18:50 UTC50m
2026-07-12 AEZ12RG - Jul 12, 16:01 UTCJul 12, 16:35 UTC35m
2026-07-12 AEZ22LO - Jul 12, 13:45 UTCJul 12, 14:30 UTC45m
2026-07-12 AEZ112X - Jul 12, 11:55 UTCJul 12, 12:25 UTC30m
2026-07-12 AEZ60RG - Jul 12, 10:10 UTCJul 12, 10:55 UTC45m
2026-07-12 AEZ7117 - Jul 12, 08:15 UTCJul 12, 08:50 UTC35m
2026-07-12 AEZ2114 - Jul 12, 05:15 UTCJul 12, 06:15 UTC1h 0m
2026-07-11 AEZ2119 - Jul 11, 19:15 UTCJul 11, 20:05 UTC50m
2026-07-11 AEZ2118 - Jul 11, 16:40 UTCJul 11, 17:35 UTC55m
2026-07-11 AEZ2121 - Jul 11, 13:45 UTCJul 11, 15:15 UTC1h 30m
2026-07-11 AEZ965S - Jul 11, 10:15 UTCJul 11, 11:45 UTC1h 30m
2026-07-11 AEZ218D - Jul 11, 07:50 UTCJul 11, 08:45 UTC55m
2026-07-11 AEZ2114 - Jul 11, 05:20 UTCJul 11, 06:20 UTC1h 0m
2026-07-10 AEZ2119 - Jul 10, 19:30 UTCJul 10, 20:25 UTC55m
2026-07-10 AEZ2118 - Jul 10, 16:40 UTCJul 10, 17:45 UTC1h 5m
2026-07-10 AEZ2121 - Jul 10, 13:40 UTCJul 10, 15:15 UTC1h 35m
2026-07-10 AEZ965S - Jul 10, 10:25 UTCJul 10, 11:50 UTC1h 25m
2026-07-10 AEZ218D - Jul 10, 07:50 UTCJul 10, 08:50 UTC1h 0m
2026-07-10 AEZ2114 - Jul 10, 05:15 UTCJul 10, 06:15 UTC1h 0m
2026-07-09 AEZ2119 - Jul 9, 19:10 UTCJul 9, 20:05 UTC55m
2026-07-09 AEZ2118 - Jul 9, 16:50 UTCJul 9, 17:50 UTC1h 0m
2026-07-09 AEZ2121 - Jul 9, 13:55 UTCJul 9, 15:25 UTC1h 30m
2026-07-09 AEZ965S - Jul 9, 10:15 UTCJul 9, 11:50 UTC1h 35m
2026-07-09 AEZ218D - Jul 9, 07:55 UTCJul 9, 08:50 UTC55m
2026-07-09 AEZ2114 - Jul 9, 05:25 UTCJul 9, 06:30 UTC1h 5m
2026-07-08 AEZ2119 - Jul 8, 19:10 UTCJul 8, 20:05 UTC55m
2026-07-08 AEZ2118 - Jul 8, 16:35 UTCJul 8, 17:40 UTC1h 5m
2026-07-08 AEZ2121 LIN → CIY Jul 8, 13:50 UTCJul 8, 15:15 UTC1h 25m
2026-07-08 AEZ965S - Jul 8, 10:15 UTCJul 8, 11:45 UTC1h 30m
2026-07-08 AEZ218D - Jul 8, 08:05 UTCJul 8, 08:55 UTC50m
2026-07-08 AEZ2114 - Jul 8, 05:30 UTCJul 8, 06:30 UTC1h 0m
2026-07-07 AEZ2119 - Jul 7, 19:05 UTCJul 7, 20:00 UTC55m
2026-07-07 AEZ2118 - Jul 7, 16:55 UTCJul 7, 17:55 UTC1h 0m
2026-07-07 AEZ2121 - Jul 7, 14:05 UTCJul 7, 15:30 UTC1h 25m
2026-07-07 AEZ965S - Jul 7, 11:15 UTCJul 7, 12:45 UTC1h 30m
2026-07-07 AEZ218D - Jul 7, 08:05 UTCJul 7, 09:00 UTC55m
2026-07-07 AEZ2114 - Jul 7, 05:30 UTCJul 7, 06:35 UTC1h 5m
2026-07-06 AEZ2119 - Jul 6, 19:55 UTCJul 6, 20:45 UTC50m
2026-07-06 AEZ2118 - Jul 6, 17:40 UTCJul 6, 18:35 UTC55m
2026-07-06 AEZ2121 - Jul 6, 14:05 UTCJul 6, 15:55 UTC1h 50m
2026-07-06 AEZ965S - Jul 6, 11:40 UTCJul 6, 13:10 UTC1h 30m

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

Mode-S 4A09B2 frequently asked

What is Mode-S code 4A09B2?
4A09B2 is an ICAO 24-bit transponder address. Allocated to Romania. Assigned to YR-BMR.
Where is Mode-S 4A09B2 registered?
Mode-S code 4A09B2 is allocated to Romania (RO). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4A09B2 broadcasting right now?
Yes. Mode-S 4A09B2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4A09B2, octal 22404662, decimal 4,852,146.
What flights does 4A09B2 operate?
Mode-S 4A09B2 has broadcast 20 distinct callsigns, including AEZ41ST, AEZ8041, AEZ8765, AEZ48LG, AEZ70MH.