sensors Mode-S transponder

151FE0

ICAO 24-bit transponder address · allocated to Russia

Currently assigned to RA-73696 · AIRBUS A-320

Hex
151FE0
Octal
05217740
Decimal
1,384,416
Country
RU
Tail
RA-73696
Type
A320
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
2
Country
RU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 151FE0.

Country allocation

The ICAO 24-bit address 151FE0 falls within the block assigned to Russia (RU) by ICAO Annex 10, Volume III. Every aircraft registered in Russia 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
LLM386 Yamal Airlines 1 2026-04-17
LLM185 Yamal Airlines 1 2026-04-15

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-04-17 LLM386 AER → NUX Apr 17, 05:20 UTCApr 17, 05:40 UTC20m
2026-04-15 LLM185 TJM → AER Apr 15, 00:30 UTCApr 15, 00:40 UTC10m

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 RA-73696 page for operator, model, and routing details .

Mode-S 151FE0 frequently asked

What is Mode-S code 151FE0?
151FE0 is an ICAO 24-bit transponder address. Allocated to Russia. Assigned to RA-73696.
Where is Mode-S 151FE0 registered?
Mode-S code 151FE0 is allocated to Russia (RU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 151FE0 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 151FE0, octal 05217740, decimal 1,384,416.
What flights does 151FE0 operate?
Mode-S 151FE0 has broadcast 2 distinct callsigns, including LLM386, LLM185.