sensors Mode-S transponder

486742

ICAO 24-bit transponder address · allocated to Netherlands

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

Hex
486742
Octal
22063502
Decimal
4,745,026
Country
NL
Tail
PH-AXD
Type
A21N
No current signal · last broadcast 19h ago
Flights observed
17
Distinct callsigns
10
Country
NL
Last broadcast
19h ago

Last known position

Most recent position reported by Mode-S 486742.

Country allocation

The ICAO 24-bit address 486742 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 10 distinct

Callsign Airline Flights Last seen
KLM76R - 3 2026-04-13
KLM46D KLM Royal Dutch Airlines 3 2026-04-13
KLM85A - 2 2026-04-13
KLM53D - 2 2026-04-13
KLM35G - 2 2026-04-14
KLM82Z KLM Royal Dutch Airlines 1 2026-04-14
KLM75V - 1 2026-04-13
KLM63U - 1 2026-04-12
KLM36Z - 1 2026-04-13
KLM1410 - 1 2026-04-12

Recent flights last 17

DateFlightRouteTakeoffLandingDuration
2026-04-14 KLM35G - Apr 14, 09:10 UTCApr 14, 10:30 UTC1h 20m
2026-04-14 KLM35G - Apr 14, 08:10 UTCApr 14, 09:05 UTC55m
2026-04-14 KLM82Z MAD → AMS Apr 14, 05:15 UTCApr 14, 06:30 UTC1h 15m
2026-04-13 KLM75V - Apr 13, 19:55 UTCApr 13, 20:10 UTC15m
2026-04-13 KLM36Z PRG → AMS Apr 13, 17:05 UTCApr 13, 18:15 UTC1h 10m
2026-04-13 KLM53D - Apr 13, 15:50 UTCApr 13, 16:05 UTC15m
2026-04-13 KLM53D AMS → PRG Apr 13, 15:00 UTCApr 13, 16:05 UTC1h 5m
2026-04-13 KLM76R - Apr 13, 12:20 UTCApr 13, 13:20 UTC1h 0m
2026-04-13 KLM76R - Apr 13, 11:55 UTCApr 13, 13:20 UTC1h 25m
2026-04-13 KLM76R - Apr 13, 11:30 UTCApr 13, 12:15 UTC45m
2026-04-13 KLM85A - Apr 13, 08:20 UTCApr 13, 09:55 UTC1h 35m
2026-04-13 KLM85A - Apr 13, 07:55 UTCApr 13, 08:15 UTC20m
2026-04-13 KLM46D ATH → AMS Apr 13, 04:20 UTCApr 13, 06:20 UTC2h 0m
2026-04-13 KLM46D ATH → AMS Apr 13, 03:55 UTCApr 13, 06:20 UTC2h 25m
2026-04-13 KLM46D ATH → AMS Apr 13, 03:25 UTCApr 13, 04:15 UTC50m
2026-04-12 KLM63U - Apr 12, 19:50 UTCApr 12, 20:15 UTC25m
2026-04-12 KLM1410 - Apr 12, 17:15 UTCApr 12, 17:50 UTC35m

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

Mode-S 486742 frequently asked

What is Mode-S code 486742?
486742 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-AXD.
Where is Mode-S 486742 registered?
Mode-S code 486742 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 486742 broadcasting right now?
No active broadcast right now. Last signal was 19h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 486742, octal 22063502, decimal 4,745,026.
What flights does 486742 operate?
Mode-S 486742 has broadcast 10 distinct callsigns, including KLM76R, KLM46D, KLM85A, KLM53D, KLM35G.