Apparatus

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sensors Mode-S transponder

484EE4

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-HSD · BOEING 737-800

Hex
484EE4
Octal
22047344
Decimal
4,738,788
Country
NL
Tail
PH-HSD
Type
B738
No current signal · last broadcast 2h ago
Flights observed
257
Distinct callsigns
20
Country
NL
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S 484EE4.

Country allocation

The ICAO 24-bit address 484EE4 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
KLM60H KLM Royal Dutch Airlines 7 2026-05-10
KLM56W KLM Royal Dutch Airlines 6 2026-05-23
KLM41U KLM Royal Dutch Airlines 6 2026-05-22
KLM99L KLM Royal Dutch Airlines 5 2026-05-10
KLM68J KLM Royal Dutch Airlines 5 2026-05-26
KLM63J KLM Royal Dutch Airlines 5 2026-05-26
KLM59N KLM Royal Dutch Airlines 5 2026-05-09
KLM1145 KLM Royal Dutch Airlines 5 2026-05-26
KLM88C KLM Royal Dutch Airlines 4 2026-05-27
KLM77F KLM Royal Dutch Airlines 4 2026-05-19
KLM58N KLM Royal Dutch Airlines 4 2026-05-19
KLM1961 KLM Royal Dutch Airlines 4 2026-05-20
KLM1403 KLM Royal Dutch Airlines 4 2026-05-28
KLM1294 KLM Royal Dutch Airlines 4 2026-05-09
KLM99D KLM Royal Dutch Airlines 3 2026-05-20
KLM74N KLM Royal Dutch Airlines 3 2026-05-21
KLM64F KLM Royal Dutch Airlines 3 2026-04-29
KLM62R KLM Royal Dutch Airlines 3 2026-05-29
KLM57B KLM Royal Dutch Airlines 3 2026-05-21
KLM50N KLM Royal Dutch Airlines 3 2026-05-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 KLM1426 BHX → AMS May 30, 06:55 UTCMay 30, 07:00 UTC5m
2026-05-29 KLM1435 AMS → BHX May 29, 19:50 UTCMay 29, 21:00 UTC1h 10m
2026-05-29 KLM62R OTP → AMS May 29, 15:35 UTCMay 29, 18:10 UTC2h 35m
2026-05-29 KLM1375 AMS → OTP May 29, 11:55 UTCMay 29, 14:10 UTC2h 15m
2026-05-29 KLM1406 CDG → AMS May 29, 09:40 UTCMay 29, 10:20 UTC40m
2026-05-29 KLM1405 AMS → CDG May 29, 07:35 UTCMay 29, 08:20 UTC45m
2026-05-28 KLM1576 ATH → AMS May 28, 18:40 UTCMay 28, 20:50 UTC2h 10m
2026-05-28 KLM1575 AMS → ATH May 28, 15:15 UTCMay 28, 17:35 UTC2h 20m
2026-05-28 KLM34A ORK → AMS May 28, 12:25 UTCMay 28, 13:40 UTC1h 15m
2026-05-28 KLM23F AMS → SPU May 28, 10:05 UTCMay 28, 11:25 UTC1h 20m
2026-05-28 KLM12B CDG → AMS May 28, 08:05 UTCMay 28, 08:50 UTC45m
2026-05-28 KLM1403 AMS → MRS May 28, 05:50 UTCMay 28, 06:45 UTC55m
2026-05-27 KLM58M BIO → AMS May 27, 15:50 UTCMay 27, 17:15 UTC1h 25m
2026-05-27 KLM91A AMS → BIO May 27, 13:05 UTCMay 27, 14:35 UTC1h 30m
2026-05-27 KLM1232 GOT → AMS May 27, 10:15 UTCMay 27, 11:30 UTC1h 15m
2026-05-27 KLM87R AMS → GOT May 27, 08:05 UTCMay 27, 09:15 UTC1h 10m
2026-05-27 KLM88C LHR → AMS May 27, 05:29 UTCMay 27, 06:29 UTC1h 0m
2026-05-26 KLM1145 AMS → OSL May 26, 20:09 UTCMay 26, 21:20 UTC1h 10m
2026-05-26 KLM82J BHX → AMS May 26, 15:54 UTCMay 26, 18:10 UTC2h 15m
2026-05-26 KLM69H AMS → BER May 26, 12:54 UTCMay 26, 14:50 UTC1h 55m
2026-05-26 KLM68J BRE → AMS May 26, 10:20 UTCMay 26, 11:24 UTC1h 5m
2026-05-26 KLM63J AMS → HAM May 26, 07:59 UTCMay 26, 09:04 UTC1h 5m
2026-05-26 KLM88C LHR → AMS May 26, 05:15 UTCMay 26, 06:20 UTC1h 5m
2026-05-25 KLM1145 AMS → OSL May 25, 20:09 UTCMay 25, 21:24 UTC1h 15m
2026-05-25 KLM1782 HAM → AMS May 25, 17:20 UTCMay 25, 18:20 UTC1h 0m
2026-05-25 KLM67B AMS → BLQ May 25, 15:30 UTCMay 25, 16:25 UTC55m
2026-05-25 KLM46M ARN → AMS May 25, 12:25 UTCMay 25, 14:10 UTC1h 45m
2026-05-25 KLM91Y AMS → ARN May 25, 09:40 UTCMay 25, 11:10 UTC1h 30m
2026-05-24 KLM1412 CDG → AMS May 24, 20:10 UTCMay 24, 20:55 UTC45m
2026-05-24 KLM1411 AMS → CDG May 24, 17:55 UTCMay 24, 18:50 UTC55m
2026-05-24 KLM50A AMS → BCN May 24, 05:15 UTCMay 24, 06:05 UTC50m
2026-05-23 KLM47K AMS → MAN May 23, 20:25 UTCMay 23, 21:10 UTC45m
2026-05-23 KLM82J BHX → AMS May 23, 16:15 UTCMay 23, 18:25 UTC2h 10m
2026-05-23 KLM69H AMS → BER May 23, 13:20 UTCMay 23, 15:15 UTC1h 55m
2026-05-23 KLM68J BRE → AMS May 23, 10:45 UTCMay 23, 11:50 UTC1h 5m
2026-05-23 KLM63J AMS → HAM May 23, 08:30 UTCMay 23, 09:30 UTC1h 0m
2026-05-23 KLM56W BGO → AMS May 23, 05:05 UTCMay 23, 07:10 UTC2h 5m
2026-05-22 KLM41U AMS → NCE May 22, 20:25 UTCMay 22, 22:50 UTC2h 25m
2026-05-22 KLM38T ZRH → AMS May 22, 15:50 UTCMay 22, 17:05 UTC1h 15m
2026-05-22 KLM99V AMS → ZRH May 22, 13:30 UTCMay 22, 14:25 UTC55m
2026-05-22 KLM1314 BOD → AMS May 22, 10:45 UTCMay 22, 12:20 UTC1h 35m
2026-05-22 KLM75C AMS → LIS May 22, 08:15 UTCMay 22, 09:45 UTC1h 30m
2026-05-22 KLM24B FLR → AMS May 22, 05:15 UTCMay 22, 06:45 UTC1h 30m
2026-05-21 KLM57C AMS → ZRH May 21, 18:50 UTCMay 21, 20:10 UTC1h 20m
2026-05-21 KLM74N TLS → AMS May 21, 15:35 UTCMay 21, 17:15 UTC1h 40m
2026-05-21 KLM57B AMS → BLQ May 21, 13:15 UTCMay 21, 14:35 UTC1h 20m
2026-05-21 KLM1138 DUB → AMS May 21, 10:40 UTCMay 21, 11:50 UTC1h 10m
2026-05-21 KLM1137 AMS → DUB May 21, 08:00 UTCMay 21, 09:20 UTC1h 20m
2026-05-21 KLM1958 ZRH → AMS May 21, 03:35 UTCMay 21, 06:25 UTC2h 50m
2026-05-20 KLM1961 AMS → ZRH May 20, 19:50 UTCMay 20, 22:35 UTC2h 45m

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

Mode-S 484EE4 frequently asked

What is Mode-S code 484EE4?
484EE4 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-HSD.
Where is Mode-S 484EE4 registered?
Mode-S code 484EE4 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484EE4 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484EE4, octal 22047344, decimal 4,738,788.
What flights does 484EE4 operate?
Mode-S 484EE4 has broadcast 20 distinct callsigns, including KLM60H, KLM56W, KLM41U, KLM99L, KLM68J.