Apparatus

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sensors Mode-S transponder

51009A

ICAO 24-bit transponder address · allocated to Belarus

Currently assigned to EW-455PA · BOEING 737-800

Hex
51009A
Octal
24200232
Decimal
5,308,570
Country
BY
Tail
EW-455PA
Type
B738
No current signal · last broadcast 2h ago
Flights observed
258
Distinct callsigns
20
Country
BY
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 51009A.

Country allocation

The ICAO 24-bit address 51009A 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 2026-07-13
BRU735 Belavia Belarusian Airlines 10 2026-06-13
BRU8207 - 9 2026-07-14
BRU8105 - 9 2026-06-17
BRU8106 - 7 2026-06-17
BRU949 - 6 2026-07-16
BRU784 - 6 2026-07-15
BRU733 - 6 2026-07-08
BRU945 - 5 2026-07-17
BRU939 - 5 2026-07-01
BRU8208 - 5 2026-07-14
BRU8206 - 5 2026-07-12
BRU8205 - 5 2026-07-12
BRU8104 Belavia Belarusian Airlines 5 2026-06-11
BRU8103 Belavia Belarusian Airlines 5 2026-06-11
BRU9801 Belavia Belarusian Airlines 4 2026-05-20
BRU975 - 4 2026-07-17
BRU937 - 4 2026-06-21
BRU8141 Belavia Belarusian Airlines 4 2026-06-02
BRU8130 - 4 2026-07-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 BRU740 - Jul 18, 04:45 UTCJul 18, 04:55 UTC10m
2026-07-17 BRU945 - Jul 17, 15:10 UTCJul 17, 16:15 UTC1h 5m
2026-07-17 BRU975 - Jul 17, 04:44 UTCJul 17, 04:59 UTC15m
2026-07-16 BRU950 - Jul 16, 11:54 UTCJul 16, 13:34 UTC1h 40m
2026-07-16 BRU949 - Jul 16, 07:45 UTCJul 16, 09:40 UTC1h 55m
2026-07-15 BRU784 - Jul 15, 11:55 UTCJul 15, 12:25 UTC30m
2026-07-14 BRU8208 - Jul 14, 07:10 UTCJul 14, 08:45 UTC1h 35m
2026-07-14 BRU8207 - Jul 14, 04:50 UTCJul 14, 05:35 UTC45m
2026-07-13 BRU8207 - Jul 13, 23:00 UTCJul 13, 23:10 UTC10m
2026-07-13 BRU977 - Jul 13, 17:55 UTCJul 13, 18:15 UTC20m
2026-07-13 BRU784 - Jul 13, 11:30 UTCJul 13, 13:15 UTC1h 45m
2026-07-12 BRU8206 - Jul 12, 18:45 UTCJul 12, 19:10 UTC25m
2026-07-12 BRU8205 - Jul 12, 16:55 UTCJul 12, 17:35 UTC40m
2026-07-11 BRU976 - Jul 11, 08:01 UTCJul 11, 08:10 UTC10m
2026-07-10 BRU9330 - Jul 10, 21:25 UTCJul 11, 00:00 UTC2h 35m
2026-07-10 BRU9329 - Jul 10, 13:10 UTCJul 10, 20:00 UTC6h 50m
2026-07-10 BRU9328 - Jul 10, 01:35 UTCJul 10, 11:20 UTC9h 45m
2026-07-09 BRU956 - Jul 9, 18:30 UTCJul 9, 18:45 UTC15m
2026-07-08 BRU733 - Jul 8, 21:25 UTCJul 8, 21:35 UTC10m
2026-07-07 BRU784 - Jul 7, 11:25 UTCJul 7, 11:45 UTC20m
2026-07-07 BRU783 - Jul 7, 09:25 UTCJul 7, 09:40 UTC15m
2026-07-06 BRU9808 - Jul 6, 20:15 UTCJul 6, 21:55 UTC1h 40m
2026-07-06 BRU9807 - Jul 6, 13:40 UTCJul 6, 19:10 UTC5h 30m
2026-07-06 BRU8216 - Jul 6, 01:30 UTCJul 6, 06:05 UTC4h 35m
2026-07-05 BRU8215 - Jul 5, 20:10 UTCJul 5, 20:20 UTC10m
2026-07-05 BRU716 - Jul 5, 14:20 UTCJul 5, 14:55 UTC35m
2026-07-05 BRU715 - Jul 5, 13:05 UTCJul 5, 13:20 UTC15m
2026-07-05 BRU976 - Jul 5, 07:05 UTCJul 5, 08:00 UTC55m
2026-07-05 BRU975 - Jul 5, 04:45 UTCJul 5, 05:00 UTC15m
2026-07-04 BRU8203 - Jul 4, 21:20 UTCJul 4, 23:05 UTC1h 45m
2026-07-04 BRU8203 - Jul 4, 18:10 UTCJul 4, 19:50 UTC1h 40m
2026-07-04 BRU950 - Jul 4, 11:35 UTCJul 4, 13:10 UTC1h 35m
2026-07-04 BRU949 - Jul 4, 08:00 UTCJul 4, 09:45 UTC1h 45m
2026-07-04 BRU734 - Jul 4, 03:25 UTCJul 4, 03:55 UTC30m
2026-07-03 BRU733 - Jul 3, 21:25 UTCJul 3, 22:25 UTC1h 0m
2026-07-03 BRU949 - Jul 3, 07:40 UTCJul 3, 09:35 UTC1h 55m
2026-07-02 BRU8130 - Jul 2, 21:45 UTCJul 2, 23:40 UTC1h 55m
2026-07-02 BRU8129 MSQ → BJV Jul 2, 18:10 UTCJul 2, 19:35 UTC1h 25m
2026-07-02 BRU950 - Jul 2, 11:05 UTCJul 2, 12:40 UTC1h 35m
2026-07-02 BRU949 - Jul 2, 07:25 UTCJul 2, 09:20 UTC1h 55m
2026-07-02 BRU730 - Jul 2, 02:10 UTCJul 2, 02:40 UTC30m
2026-07-02 BRU730 - Jul 2, 00:25 UTCJul 2, 00:35 UTC10m
2026-07-01 BRU729 - Jul 1, 21:05 UTCJul 1, 21:15 UTC10m
2026-07-01 BRU955 - Jul 1, 15:25 UTCJul 1, 15:40 UTC15m
2026-07-01 BRU940 - Jul 1, 13:25 UTCJul 1, 13:35 UTC10m
2026-07-01 BRU939 - Jul 1, 10:30 UTCJul 1, 11:30 UTC1h 0m
2026-06-30 BRU9330 - Jun 30, 21:15 UTCJul 1, 00:00 UTC2h 45m
2026-06-30 BRU9329 BQT → DBB Jun 30, 13:35 UTCJun 30, 19:55 UTC6h 20m
2026-06-30 BRU9328 DBB → BQT Jun 30, 11:40 UTCJun 30, 11:55 UTC15m
2026-06-30 BRU9328 DBB → BQT Jun 30, 05:55 UTCJun 30, 08:35 UTC2h 40m

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-455PA page for operator, model, and routing details .

Mode-S 51009A frequently asked

What is Mode-S code 51009A?
51009A is an ICAO 24-bit transponder address. Allocated to Belarus. Assigned to EW-455PA.
Where is Mode-S 51009A registered?
Mode-S code 51009A is allocated to Belarus (BY). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 51009A 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 51009A, octal 24200232, decimal 5,308,570.
What flights does 51009A operate?
Mode-S 51009A has broadcast 20 distinct callsigns, including BRU977, BRU735, BRU8207, BRU8105, BRU8106.