sensors Mode-S transponder

05E054

ICAO 24-bit transponder address · allocated to Mauritania

Currently assigned to 5T-CLE · BOEING 737-800

Hex
05E054
Octal
01360124
Decimal
385,108
Country
MR
Tail
5T-CLE
Type
B738
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
2
Country
MR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 05E054.

Country allocation

The ICAO 24-bit address 05E054 falls within the block assigned to Mauritania (MR) by ICAO Annex 10, Volume III. Every aircraft registered in Mauritania 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 2 distinct

Callsign Airline Flights Last seen
MAI213 - 2 2026-04-13
MAI212 Mauritania Airlines International 2 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 MAI213 - Apr 13, 18:25 UTCApr 13, 18:45 UTC20m
2026-04-13 MAI213 - Apr 13, 16:55 UTCApr 13, 17:35 UTC40m
2026-04-13 MAI212 NKC → DSS Apr 13, 10:55 UTCApr 13, 11:30 UTC35m
2026-04-13 MAI212 NKC → DSS Apr 13, 09:35 UTCApr 13, 10:05 UTC30m

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 5T-CLE page for operator, model, and routing details .

Mode-S 05E054 frequently asked

What is Mode-S code 05E054?
05E054 is an ICAO 24-bit transponder address. Allocated to Mauritania. Assigned to 5T-CLE.
Where is Mode-S 05E054 registered?
Mode-S code 05E054 is allocated to Mauritania (MR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 05E054 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 05E054, octal 01360124, decimal 385,108.
What flights does 05E054 operate?
Mode-S 05E054 has broadcast 2 distinct callsigns, including MAI213, MAI212.