sensors Mode-S transponder

486836

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-AXK · AIRBUS A-321neo

Hex
486836
Octal
22064066
Decimal
4,745,270
Country
NL
Tail
PH-AXK
Type
A21N
No current signal · last broadcast 17h ago
Flights observed
5
Distinct callsigns
5
Country
NL
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 486836.

Country allocation

The ICAO 24-bit address 486836 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 5 distinct

Callsign Airline Flights Last seen
KLM54G - 1 2026-04-12
KLM43G - 1 2026-04-14
KLM23A - 1 2026-04-12
KLM1902 - 1 2026-04-14
KLM1214 KLM Royal Dutch Airlines 1 2026-04-13

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 KLM1902 - Apr 14, 07:45 UTCApr 14, 09:05 UTC1h 20m
2026-04-14 KLM43G - Apr 14, 05:15 UTCApr 14, 06:45 UTC1h 30m
2026-04-13 KLM1214 RVN → AMS Apr 13, 04:50 UTCApr 13, 06:35 UTC1h 45m
2026-04-12 KLM23A - Apr 12, 19:05 UTCApr 12, 20:15 UTC1h 10m
2026-04-12 KLM54G - Apr 12, 17:15 UTCApr 12, 17:30 UTC15m

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-AXK page for operator, model, and routing details .

Mode-S 486836 frequently asked

What is Mode-S code 486836?
486836 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-AXK.
Where is Mode-S 486836 registered?
Mode-S code 486836 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 486836 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 486836, octal 22064066, decimal 4,745,270.
What flights does 486836 operate?
Mode-S 486836 has broadcast 5 distinct callsigns, including KLM54G, KLM43G, KLM23A, KLM1902, KLM1214.