Apparatus

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sensors Mode-S transponder

51009B

ICAO 24-bit transponder address · allocated to Belarus

Currently assigned to EW-456PA · BOEING 737-800

Hex
51009B
Octal
24200233
Decimal
5,308,571
Country
BY
Tail
EW-456PA
Type
B738
No current signal · last broadcast 9h ago
Flights observed
227
Distinct callsigns
20
Country
BY
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S 51009B.

Country allocation

The ICAO 24-bit address 51009B falls within the block assigned to Belarus (BY) by ICAO Annex 10, Volume III. Every aircraft registered in Belarus 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
BRU977 - 11 2026-07-14
BRU8103 - 10 2026-07-09
BRU945 - 8 2026-07-06
BRU783 - 8 2026-07-08
BRU8214 Belavia Belarusian Airlines 5 2026-05-09
BRU8193 Belavia Belarusian Airlines 5 2026-06-21
BRU8104 - 5 2026-07-09
BRU715 - 5 2026-07-11
BRU979 - 4 2026-06-19
BRU978 - 4 2026-06-15
BRU975 - 4 2026-06-23
BRU957 Belavia Belarusian Airlines 4 2026-06-10
BRU941 - 4 2026-07-10
BRU9308 Belavia Belarusian Airlines 4 2026-05-15
BRU8170 - 4 2026-06-22
BRU8169 - 4 2026-06-22
BRU9807 - 3 2026-07-03
BRU9804 Belavia Belarusian Airlines 3 2026-06-08
BRU9305 Belavia Belarusian Airlines 3 2026-04-23
BRU8216 Belavia Belarusian Airlines 3 2026-05-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 BRU977 - Jul 14, 17:05 UTCJul 14, 17:25 UTC20m
2026-07-14 BRU748 - Jul 14, 09:30 UTCJul 14, 11:55 UTC2h 25m
2026-07-14 BRU747 - Jul 14, 07:00 UTCJul 14, 07:55 UTC55m
2026-07-13 BRU8204 - Jul 13, 18:30 UTCJul 13, 20:15 UTC1h 45m
2026-07-13 BRU8203 - Jul 13, 11:45 UTCJul 13, 17:20 UTC5h 35m
2026-07-13 BRU8192 - Jul 13, 04:15 UTCJul 13, 06:01 UTC1h 45m
2026-07-12 BRU8191 - Jul 12, 22:00 UTCJul 13, 03:01 UTC5h 0m
2026-07-12 BRU8105 - Jul 12, 02:25 UTCJul 12, 03:35 UTC1h 10m
2026-07-11 BRU977 - Jul 11, 17:20 UTCJul 11, 18:25 UTC1h 5m
2026-07-11 BRU715 - Jul 11, 10:20 UTCJul 11, 10:30 UTC10m
2026-07-11 BRU715 - Jul 11, 07:25 UTCJul 11, 07:50 UTC25m
2026-07-11 BRU738 - Jul 11, 01:45 UTCJul 11, 02:20 UTC35m
2026-07-10 BRU737 - Jul 10, 20:20 UTCJul 10, 20:30 UTC10m
2026-07-10 BRU941 - Jul 10, 05:45 UTCJul 10, 06:40 UTC55m
2026-07-09 BRU9810 - Jul 9, 21:40 UTCJul 9, 23:20 UTC1h 40m
2026-07-09 BRU8104 - Jul 9, 06:55 UTCJul 9, 08:40 UTC1h 45m
2026-07-09 BRU8103 - Jul 9, 03:10 UTCJul 9, 04:15 UTC1h 5m
2026-07-09 BRU8103 - Jul 9, 00:20 UTCJul 9, 00:30 UTC10m
2026-07-08 BRU784 - Jul 8, 11:30 UTCJul 8, 11:55 UTC25m
2026-07-08 BRU783 - Jul 8, 09:25 UTCJul 8, 09:50 UTC25m
2026-07-07 BRU977 - Jul 7, 17:10 UTCJul 7, 17:20 UTC10m
2026-07-07 BRU748 - Jul 7, 09:35 UTCJul 7, 12:00 UTC2h 25m
2026-07-07 BRU747 - Jul 7, 04:55 UTCJul 7, 07:45 UTC2h 50m
2026-07-06 BRU945 - Jul 6, 15:25 UTCJul 6, 16:30 UTC1h 5m
2026-07-06 BRU940 - Jul 6, 12:45 UTCJul 6, 13:45 UTC1h 0m
2026-07-06 BRU939 - Jul 6, 10:35 UTCJul 6, 11:40 UTC1h 5m
2026-07-05 BRU8228 - Jul 5, 20:10 UTCJul 5, 21:55 UTC1h 45m
2026-07-05 BRU8227 - Jul 5, 18:00 UTCJul 5, 18:40 UTC40m
2026-07-04 BRU945 - Jul 4, 16:50 UTCJul 4, 17:55 UTC1h 5m
2026-07-04 BRU9810 - Jul 4, 09:50 UTCJul 4, 11:35 UTC1h 45m
2026-07-04 BRU9809 - Jul 4, 05:45 UTCJul 4, 06:30 UTC45m
2026-07-04 BRU9809 - Jul 4, 02:20 UTCJul 4, 02:30 UTC10m
2026-07-03 BRU9808 - Jul 3, 16:05 UTCJul 3, 17:45 UTC1h 40m
2026-07-03 BRU9807 - Jul 3, 14:05 UTCJul 3, 14:35 UTC30m
2026-07-03 BRU9807 - Jul 3, 12:15 UTCJul 3, 13:25 UTC1h 10m
2026-07-03 BRU9807 - Jul 3, 09:25 UTCJul 3, 09:35 UTC10m
2026-07-02 BRU784 - Jul 2, 11:10 UTCJul 2, 11:30 UTC20m
2026-07-02 BRU783 - Jul 2, 04:25 UTCJul 2, 04:35 UTC10m
2026-07-01 BRU8168 AYT → MSQ Jul 1, 19:40 UTCJul 1, 21:30 UTC1h 50m
2026-07-01 BRU8166 AYT → GME Jul 1, 06:10 UTCJul 1, 18:10 UTC12h 0m
2026-07-01 BRU8165 MSQ → AYT Jul 1, 04:15 UTCJul 1, 04:45 UTC30m
2026-06-30 BRU716 KUT → MSQ Jun 30, 12:05 UTCJun 30, 12:35 UTC30m
2026-06-30 BRU715 MSQ → KUT Jun 30, 10:30 UTCJun 30, 11:00 UTC30m
2026-06-29 BRU767 - Jun 29, 18:05 UTCJun 29, 18:14 UTC10m
2026-06-29 BRU783 - Jun 29, 04:14 UTCJun 29, 04:25 UTC10m
2026-06-28 BRU8176 - Jun 28, 19:40 UTCJun 28, 21:20 UTC1h 40m
2026-06-28 BRU8175 - Jun 28, 16:25 UTCJun 28, 17:55 UTC1h 30m
2026-06-28 BRU8173 - Jun 28, 00:30 UTCJun 28, 00:39 UTC10m
2026-06-25 BRU8228 - Jun 25, 20:05 UTCJun 25, 21:50 UTC1h 45m
2026-06-25 BRU8227 - Jun 25, 18:15 UTCJun 25, 18:39 UTC25m

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 EW-456PA page for operator, model, and routing details .

Mode-S 51009B frequently asked

What is Mode-S code 51009B?
51009B is an ICAO 24-bit transponder address. Allocated to Belarus. Assigned to EW-456PA.
Where is Mode-S 51009B registered?
Mode-S code 51009B is allocated to Belarus (BY). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 51009B broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 51009B, octal 24200233, decimal 5,308,571.
What flights does 51009B operate?
Mode-S 51009B has broadcast 20 distinct callsigns, including BRU977, BRU8103, BRU945, BRU783, BRU8214.