sensors Mode-S transponder

4853F6

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-HOW · AIRBUS HELICOPTERS EC-145

Hex
4853F6
Octal
22051766
Decimal
4,740,086
Country
NL
Tail
PH-HOW
Type
EC45
No current signal · last broadcast 1d ago
Flights observed
5
Distinct callsigns
1
Country
NL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4853F6.

Country allocation

The ICAO 24-bit address 4853F6 falls within the block assigned to Netherlands (NL) by ICAO Annex 10, Volume III. Every aircraft registered in Netherlands 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 1 distinct

Callsign Airline Flights Last seen
MEDIC01 - 5 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-13 MEDIC01 - Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 MEDIC01 - Apr 13, 18:05 UTCApr 13, 19:50 UTC1h 45m
2026-04-13 MEDIC01 - Apr 13, 16:00 UTCApr 13, 16:40 UTC40m
2026-04-13 MEDIC01 - Apr 13, 14:15 UTCApr 13, 16:10 UTC1h 55m
2026-04-13 MEDIC01 - Apr 13, 01:05 UTCApr 13, 01:35 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 PH-HOW page for operator, model, and routing details .

Mode-S 4853F6 frequently asked

What is Mode-S code 4853F6?
4853F6 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-HOW.
Where is Mode-S 4853F6 registered?
Mode-S code 4853F6 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4853F6 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 4853F6, octal 22051766, decimal 4,740,086.
What flights does 4853F6 operate?
Mode-S 4853F6 has broadcast 1 distinct callsign, including MEDIC01.