sensors Mode-S transponder

48104E

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to N-317 · NHI NH-90

Hex
48104E
Octal
22010116
Decimal
4,722,766
Country
NL
Tail
N-317
Type
NH90
No current signal · last broadcast 1d ago
Flights observed
2
Distinct callsigns
2
Country
NL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 48104E.

Country allocation

The ICAO 24-bit address 48104E 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 2 distinct

Callsign Airline Flights Last seen
NEPTN73 - 1 2026-04-29
NEPTN43 - 1 2026-05-05

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-05-05 NEPTN43 GLZ → GLZ May 5, 09:00 UTCMay 5, 09:55 UTC55m
2026-04-29 NEPTN73 DHR → DHR Apr 29, 07:50 UTCApr 29, 09:00 UTC1h 11m

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 N-317 page for operator, model, and routing details .

Mode-S 48104E frequently asked

What is Mode-S code 48104E?
48104E is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to N-317.
Where is Mode-S 48104E registered?
Mode-S code 48104E is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 48104E 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 48104E, octal 22010116, decimal 4,722,766.
What flights does 48104E operate?
Mode-S 48104E has broadcast 2 distinct callsigns, including NEPTN73, NEPTN43.