Apparatus

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sensors Mode-S transponder

484556

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BXY · BOEING 737-800

Hex
484556
Octal
22042526
Decimal
4,736,342
Country
NL
Tail
PH-BXY
Type
B738
No current signal · last broadcast 1h ago
Flights observed
474
Distinct callsigns
20
Country
NL
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S 484556.

Country allocation

The ICAO 24-bit address 484556 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 20 distinct

Callsign Airline Flights Last seen
KLM50N - 7 2026-07-06
KLM1633 - 7 2026-07-06
KLM78W - 6 2026-07-01
KLM24B - 6 2026-07-05
KLM99H KLM Royal Dutch Airlines 5 2026-05-10
KLM93W KLM Royal Dutch Airlines 5 2026-06-07
KLM91A - 5 2026-07-12
KLM68N KLM Royal Dutch Airlines 5 2026-05-11
KLM58M - 5 2026-07-12
KLM57C - 5 2026-07-04
KLM54H KLM Royal Dutch Airlines 5 2026-06-07
KLM44A - 5 2026-07-07
KLM23V - 5 2026-07-01
KLM1780 - 5 2026-07-11
KLM1779 - 5 2026-07-11
KLM1266 - 5 2026-06-28
KLM1163 - 5 2026-07-07
KLM99B - 4 2026-07-03
KLM87P - 4 2026-07-06
KLM76Q KLM Royal Dutch Airlines 4 2026-06-03

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 KLM88C - Jul 14, 05:20 UTCJul 14, 05:30 UTC10m
2026-07-13 KLM1145 - Jul 13, 19:55 UTCJul 13, 21:05 UTC1h 10m
2026-07-13 KLM1368 BUD → AMS Jul 13, 15:40 UTCJul 13, 17:20 UTC1h 40m
2026-07-13 KLM1367 - Jul 13, 12:50 UTCJul 13, 14:25 UTC1h 35m
2026-07-13 KLM86F OSL → AMS Jul 13, 10:10 UTCJul 13, 11:35 UTC1h 25m
2026-07-13 KLM65M - Jul 13, 07:45 UTCJul 13, 09:10 UTC1h 25m
2026-07-13 KLM22C - Jul 13, 05:01 UTCJul 13, 06:25 UTC1h 25m
2026-07-12 KLM69P AMS → MRS Jul 12, 19:20 UTCJul 12, 20:45 UTC1h 25m
2026-07-12 KLM58M - Jul 12, 16:15 UTCJul 12, 17:40 UTC1h 25m
2026-07-12 KLM91A - Jul 12, 13:10 UTCJul 12, 14:40 UTC1h 30m
2026-07-12 KLM82K - Jul 12, 10:20 UTCJul 12, 11:25 UTC1h 5m
2026-07-12 KLM97L - Jul 12, 07:55 UTCJul 12, 09:10 UTC1h 15m
2026-07-12 KLM22C - Jul 12, 04:45 UTCJul 12, 06:15 UTC1h 30m
2026-07-11 KLM69P - Jul 11, 19:05 UTCJul 11, 20:55 UTC1h 50m
2026-07-11 KLM1780 - Jul 11, 15:40 UTCJul 11, 16:35 UTC55m
2026-07-11 KLM1779 - Jul 11, 13:55 UTCJul 11, 14:45 UTC50m
2026-07-11 KLM32P MAN → AMS Jul 11, 10:20 UTCJul 11, 11:05 UTC45m
2026-07-11 KLM1031 - Jul 11, 08:05 UTCJul 11, 08:55 UTC50m
2026-07-11 KLM1970 - Jul 11, 04:35 UTCJul 11, 06:30 UTC1h 55m
2026-07-10 KLM91R - Jul 10, 19:45 UTCJul 10, 21:10 UTC1h 25m
2026-07-10 KLM38T ZRH → AMS Jul 10, 16:25 UTCJul 10, 17:30 UTC1h 5m
2026-07-10 KLM99V - Jul 10, 14:15 UTCJul 10, 15:15 UTC1h 0m
2026-07-10 KLM1678 - Jul 10, 10:50 UTCJul 10, 13:00 UTC2h 10m
2026-07-10 KLM23L - Jul 10, 06:45 UTCJul 10, 08:35 UTC1h 50m
2026-07-09 KLM1038 MAN → AMS Jul 9, 20:15 UTCJul 9, 21:05 UTC50m
2026-07-09 KLM91N - Jul 9, 18:15 UTCJul 9, 19:10 UTC55m
2026-07-09 KLM1780 - Jul 9, 16:00 UTCJul 9, 16:55 UTC55m
2026-07-09 KLM1779 - Jul 9, 13:55 UTCJul 9, 14:55 UTC1h 0m
2026-07-09 KLM1314 - Jul 9, 10:50 UTCJul 9, 12:30 UTC1h 40m
2026-07-09 KLM75C - Jul 9, 08:10 UTCJul 9, 09:40 UTC1h 30m
2026-07-09 KLM38Y ZRH → AMS Jul 9, 05:15 UTCJul 9, 06:20 UTC1h 5m
2026-07-08 KLM47G - Jul 8, 19:25 UTCJul 8, 20:20 UTC55m
2026-07-08 KLM42Y - Jul 8, 15:50 UTCJul 8, 17:45 UTC1h 55m
2026-07-08 KLM31H AMS → MAD Jul 8, 12:20 UTCJul 8, 14:20 UTC2h 0m
2026-07-08 KLM42N - Jul 8, 08:25 UTCJul 8, 09:30 UTC1h 5m
2026-07-08 KLM61B AMS → GLA Jul 8, 06:15 UTCJul 8, 07:25 UTC1h 10m
2026-07-07 KLM60H OPO → AMS Jul 7, 16:00 UTCJul 7, 18:25 UTC2h 25m
2026-07-07 KLM61M - Jul 7, 12:10 UTCJul 7, 14:30 UTC2h 20m
2026-07-07 KLM44A BGO → AMS Jul 7, 09:05 UTCJul 7, 10:25 UTC1h 20m
2026-07-07 KLM1163 - Jul 7, 06:40 UTCJul 7, 08:10 UTC1h 30m
2026-07-07 KLM70B PRG → AMS Jul 7, 04:15 UTCJul 7, 05:25 UTC1h 10m
2026-07-06 KLM1361 - Jul 6, 19:45 UTCJul 6, 20:50 UTC1h 5m
2026-07-06 KLM50N - Jul 6, 16:20 UTCJul 6, 18:00 UTC1h 40m
2026-07-06 KLM1633 - Jul 6, 13:50 UTCJul 6, 15:05 UTC1h 15m
2026-07-06 KLM1512 - Jul 6, 09:40 UTCJul 6, 12:00 UTC2h 20m
2026-07-06 KLM87P - Jul 6, 06:15 UTCJul 6, 08:00 UTC1h 45m
2026-07-05 KLM932 EDI → AMS Jul 5, 16:35 UTCJul 5, 17:40 UTC1h 5m
2026-07-05 KLM75A - Jul 5, 14:25 UTCJul 5, 15:35 UTC1h 10m
2026-07-05 KLM80Y LIN → AMS Jul 5, 11:25 UTCJul 5, 12:55 UTC1h 30m
2026-07-05 KLM95Q - Jul 5, 08:45 UTCJul 5, 09:55 UTC1h 10m

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

Mode-S 484556 frequently asked

What is Mode-S code 484556?
484556 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BXY.
Where is Mode-S 484556 registered?
Mode-S code 484556 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484556 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484556, octal 22042526, decimal 4,736,342.
What flights does 484556 operate?
Mode-S 484556 has broadcast 20 distinct callsigns, including KLM50N, KLM1633, KLM78W, KLM24B, KLM99H.