Apparatus

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sensors Mode-S transponder

51118A

ICAO 24-bit transponder address · allocated to Estonia

Currently assigned to ES-MBG · AIRBUS A-320neo

Hex
51118A
Octal
24210612
Decimal
5,312,906
Country
EE
Tail
ES-MBG
Type
A20N
No current signal · last broadcast Jul 26, 20:50 UTC
Flights observed
428
Distinct callsigns
20
Country
EE
Last broadcast
Jul 26, 20:50 UTC

Last known position

Most recent position reported by Mode-S 51118A.

Country allocation

The ICAO 24-bit address 51118A falls within the block assigned to Estonia (EE) by ICAO Annex 10, Volume III. Every aircraft registered in Estonia 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
MBU5HF Marabu Airlines 60 2026-06-24
MBU4ND - 58 2026-06-23
MBU1TC - 33 2026-06-24
MBU7JU - 32 2026-06-24
MBU5TA - 25 2026-07-13
MBU9LK - 24 2026-07-13
MBU8BX - 9 2026-07-23
MBU7MX - 9 2026-06-30
MBU6CZ - 9 2026-07-04
MBU4HW - 9 2026-06-30
MBU1XN Marabu Airlines 9 2026-07-23
MBU9AG - 8 2026-06-30
MBU8TN - 8 2026-06-30
MBU7PL - 8 2026-06-28
MBU2QV Marabu Airlines 8 2026-07-04
MBU5UE Marabu Airlines 7 2026-07-23
MBU3BE Marabu Airlines 6 2026-07-23
MBU6VG Marabu Airlines 5 2026-07-23
MBU6239 - 5 2026-07-04
MBU5AW Marabu Airlines 5 2026-07-22

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 MBU7SE RHO → HAM Jul 26, 17:25 UTCJul 26, 20:45 UTC3h 20m
2026-07-26 MBU8JA HAM → RHO Jul 26, 12:50 UTCJul 26, 15:50 UTC3h 0m
2026-07-26 MBU4GV TRS → HAM Jul 26, 09:55 UTCJul 26, 11:20 UTC1h 25m
2026-07-26 MBU3AX HAM → TRS Jul 26, 07:10 UTCJul 26, 08:35 UTC1h 25m
2026-07-25 MBU7AE PMI → HAM Jul 25, 16:50 UTCJul 25, 19:25 UTC2h 35m
2026-07-25 MBU6GN HAM → PMI Jul 25, 13:00 UTCJul 25, 15:30 UTC2h 30m
2026-07-25 MBU1TF PMI → HAM Jul 25, 09:05 UTCJul 25, 11:35 UTC2h 30m
2026-07-25 MBU3UM HAM → PMI Jul 25, 04:25 UTCJul 25, 06:55 UTC2h 30m
2026-07-24 MBU8HR - Jul 24, 17:50 UTCJul 24, 21:15 UTC3h 25m
2026-07-24 MBU7SP - Jul 24, 13:20 UTCJul 24, 16:00 UTC2h 40m
2026-07-24 MBU9001 PMI → HAM Jul 24, 10:20 UTCJul 24, 11:15 UTC55m
2026-07-24 MBU3ZE CFU → NUE Jul 24, 06:25 UTCJul 24, 08:20 UTC1h 55m
2026-07-24 MBU2MG NUE → CFU Jul 24, 03:30 UTCJul 24, 04:55 UTC1h 25m
2026-07-23 MBU5UE RHO → NUE Jul 23, 21:20 UTCJul 24, 00:10 UTC2h 50m
2026-07-23 MBU3BE NUE → RHO Jul 23, 17:30 UTCJul 23, 20:00 UTC2h 30m
2026-07-23 MBU1XN PMI → NUE Jul 23, 14:20 UTCJul 23, 16:15 UTC1h 55m
2026-07-23 MBU8BX - Jul 23, 11:20 UTCJul 23, 13:05 UTC1h 45m
2026-07-23 MBU6VG PMI → NUE Jul 23, 08:00 UTCJul 23, 10:00 UTC2h 0m
2026-07-23 MBU3UM HAM → PMI Jul 23, 04:10 UTCJul 23, 06:25 UTC2h 15m
2026-07-22 MBU6CQ FUE → HAM Jul 22, 11:10 UTCJul 22, 20:20 UTC9h 10m
2026-07-22 MBU5AW NUE → PMI Jul 22, 02:50 UTCJul 22, 04:40 UTC1h 50m
2026-07-21 MBU2AT FUE → NUE Jul 21, 16:50 UTCJul 21, 20:30 UTC3h 40m
2026-07-21 MBU3SD NUE → FUE Jul 21, 11:15 UTCJul 21, 15:10 UTC3h 55m
2026-07-21 MBU6VG PMI → NUE Jul 21, 08:15 UTCJul 21, 10:10 UTC1h 55m
2026-07-21 MBU3UM - Jul 21, 04:20 UTCJul 21, 06:40 UTC2h 20m
2026-07-20 MBU7NV FNC → HAM Jul 20, 15:30 UTCJul 20, 19:30 UTC4h 0m
2026-07-20 MBU9LP HAM → FNC Jul 20, 10:05 UTCJul 20, 14:35 UTC4h 30m
2026-07-20 MBU1TF - Jul 20, 06:10 UTCJul 20, 08:40 UTC2h 30m
2026-07-20 MBU5AW - Jul 20, 02:55 UTCJul 20, 04:55 UTC2h 0m
2026-07-19 MBU1XN PMI → NUE Jul 19, 20:00 UTCJul 19, 21:45 UTC1h 45m
2026-07-19 MBU8BX - Jul 19, 16:40 UTCJul 19, 18:30 UTC1h 50m
2026-07-19 MBU6147 HRG → NUE Jul 19, 04:30 UTCJul 19, 14:25 UTC9h 55m
2026-07-18 MBU1XN - Jul 18, 21:50 UTCJul 18, 23:35 UTC1h 45m
2026-07-18 MBU8BX - Jul 18, 18:40 UTCJul 18, 20:30 UTC1h 50m
2026-07-18 MBU1JX NUE → TFS Jul 18, 04:35 UTCJul 18, 14:50 UTC10h 15m
2026-07-17 MBU1XN - Jul 17, 12:45 UTCJul 17, 14:35 UTC1h 50m
2026-07-17 MBU8BX - Jul 17, 09:25 UTCJul 17, 11:20 UTC1h 55m
2026-07-17 MBU3ZE - Jul 17, 06:15 UTCJul 17, 08:00 UTC1h 45m
2026-07-17 MBU2MG - Jul 17, 03:14 UTCJul 17, 04:44 UTC1h 30m
2026-07-16 MBU5UE - Jul 16, 22:00 UTCJul 17, 00:55 UTC2h 55m
2026-07-16 MBU3BE NUE → RHO Jul 16, 18:15 UTCJul 16, 20:45 UTC2h 30m
2026-07-16 MBU1XN - Jul 16, 14:50 UTCJul 16, 16:49 UTC2h 0m
2026-07-16 MBU8BX - Jul 16, 10:59 UTCJul 16, 13:00 UTC2h 0m
2026-07-16 MBU6VG - Jul 16, 07:50 UTCJul 16, 09:40 UTC1h 50m
2026-07-16 MBU3UM - Jul 16, 04:10 UTCJul 16, 06:25 UTC2h 15m
2026-07-15 MBU9CF - Jul 15, 18:25 UTCJul 15, 21:15 UTC2h 50m
2026-07-15 MBU3FW HAM → XRY Jul 15, 14:20 UTCJul 15, 17:30 UTC3h 10m
2026-07-15 MBU7HQ - Jul 15, 09:40 UTCJul 15, 12:50 UTC3h 10m
2026-07-15 MBU8AZ - Jul 15, 04:50 UTCJul 15, 07:45 UTC2h 55m
2026-07-14 MBU5SC - Jul 14, 17:30 UTCJul 14, 19:50 UTC2h 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 ES-MBG page for operator, model, and routing details .

Mode-S 51118A frequently asked

What is Mode-S code 51118A?
51118A is an ICAO 24-bit transponder address. Allocated to Estonia. Assigned to ES-MBG.
Where is Mode-S 51118A registered?
Mode-S code 51118A is allocated to Estonia (EE). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 51118A broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:50 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 51118A, octal 24210612, decimal 5,312,906.
What flights does 51118A operate?
Mode-S 51118A has broadcast 20 distinct callsigns, including MBU5HF, MBU4ND, MBU1TC, MBU7JU, MBU5TA.