Apparatus

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sensors Mode-S transponder

484FDE

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BCD · BOEING 737-800

Hex
484FDE
Octal
22047736
Decimal
4,739,038
Country
NL
Tail
PH-BCD
Type
B738
Broadcasting now · callsign KLM89D · 35,000 ft
Flights observed
594
Distinct callsigns
20
Country
NL
Last broadcast
Jul 26, 17:50 UTC

Current position

484FDE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 484FDE 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
KLM90J KLM Royal Dutch Airlines 9 2026-07-19
KLM1408 KLM Royal Dutch Airlines 9 2026-07-23
KLM1407 KLM Royal Dutch Airlines 9 2026-07-23
KLM27F - 8 2026-07-18
KLM1512 - 7 2026-07-15
KLM94K KLM Royal Dutch Airlines 6 2026-07-25
KLM92Y - 6 2026-07-03
KLM87P - 6 2026-07-15
KLM85P KLM Royal Dutch Airlines 6 2026-07-24
KLM67E - 6 2026-07-03
KLM42W - 6 2026-06-17
KLM1301 KLM Royal Dutch Airlines 6 2026-06-16
KLM89Q - 5 2026-07-19
KLM69P - 5 2026-07-15
KLM67B KLM Royal Dutch Airlines 5 2026-06-16
KLM46C - 5 2026-07-19
KLM22C - 5 2026-07-16
KLM1961 - 5 2026-06-30
KLM1959 - 5 2026-06-29
KLM1958 - 5 2026-07-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KLM1368 WAW → AMS Jul 26, 16:05 UTCJul 26, 17:45 UTC1h 40m
2026-07-26 KLM1367 AMS → WAW Jul 26, 13:15 UTCJul 26, 14:40 UTC1h 25m
2026-07-26 KLM46P LHR → AMS Jul 26, 11:05 UTCJul 26, 11:50 UTC45m
2026-07-26 KLM35B AMS → BUD Jul 26, 08:55 UTCJul 26, 09:45 UTC50m
2026-07-25 KLM1548 LBA → AMS Jul 25, 19:05 UTCJul 25, 21:35 UTC2h 30m
2026-07-25 KLM1547 AMS → LBA Jul 25, 15:20 UTCJul 25, 18:00 UTC2h 40m
2026-07-25 KLM46M ARN → AMS Jul 25, 12:15 UTCJul 25, 13:55 UTC1h 40m
2026-07-25 KLM91Y AMS → ARN Jul 25, 09:30 UTCJul 25, 11:00 UTC1h 30m
2026-07-25 KLM94K BUD → AMS Jul 25, 04:15 UTCJul 25, 06:05 UTC1h 50m
2026-07-24 KLM85P AMS → BUD Jul 24, 19:40 UTCJul 24, 21:10 UTC1h 30m
2026-07-24 KLM56E SPU → AMS Jul 24, 16:00 UTCJul 24, 18:00 UTC2h 0m
2026-07-24 KLM51W AMS → SPU Jul 24, 13:10 UTCJul 24, 14:30 UTC1h 20m
2026-07-24 KLM54H NCE → AMS Jul 24, 10:35 UTCJul 24, 11:45 UTC1h 10m
2026-07-24 KLM54H NCE → AMS Jul 24, 10:05 UTCJul 24, 10:30 UTC25m
2026-07-24 KLM93W AMS → VCE Jul 24, 07:25 UTCJul 24, 08:50 UTC1h 25m
2026-07-24 KLM66G NCL → AMS Jul 24, 04:55 UTCJul 24, 05:50 UTC55m
2026-07-23 KLM961 AMS → NCL Jul 23, 21:20 UTCJul 23, 22:15 UTC55m
2026-07-23 KLM84A FCO → AMS Jul 23, 17:55 UTCJul 23, 20:00 UTC2h 5m
2026-07-23 KLM41L AMS → FCO Jul 23, 15:00 UTCJul 23, 16:40 UTC1h 40m
2026-07-23 KLM1408 CDG → AMS Jul 23, 13:00 UTCJul 23, 13:50 UTC50m
2026-07-23 KLM1407 AMS → CDG Jul 23, 10:55 UTCJul 23, 11:40 UTC45m
2026-07-23 KLM78W DUB → AMS Jul 23, 08:00 UTCJul 23, 09:30 UTC1h 30m
2026-07-23 KLM23V AMS → ARN Jul 23, 05:20 UTCJul 23, 07:00 UTC1h 40m
2026-07-22 KLM56E SPU → AMS Jul 22, 16:10 UTCJul 22, 18:05 UTC1h 55m
2026-07-22 KLM51W AMS → SPU Jul 22, 13:20 UTCJul 22, 14:50 UTC1h 30m
2026-07-22 KLM56W BGO → AMS Jul 22, 04:15 UTCJul 22, 12:05 UTC7h 50m
2026-07-21 KLM41U AMS → NCE Jul 21, 19:00 UTCJul 21, 21:10 UTC2h 10m
2026-07-21 KLM1368 BUD → AMS Jul 21, 15:55 UTCJul 21, 17:40 UTC1h 45m
2026-07-21 KLM1367 - Jul 21, 13:20 UTCJul 21, 14:55 UTC1h 35m
2026-07-21 KLM54H NCE → AMS Jul 21, 10:00 UTCJul 21, 11:30 UTC1h 30m
2026-07-21 KLM93W AMS → VCE Jul 21, 07:30 UTCJul 21, 08:50 UTC1h 20m
2026-07-21 KLM30N OSL → AMS Jul 21, 05:00 UTCJul 21, 06:20 UTC1h 20m
2026-07-20 KLM39G AMS → OSL Jul 20, 19:10 UTCJul 20, 20:35 UTC1h 25m
2026-07-20 KLM30E CPH → AMS Jul 20, 14:50 UTCJul 20, 15:50 UTC1h 0m
2026-07-20 KLM79C AMS → CPH Jul 20, 12:40 UTCJul 20, 13:40 UTC1h 0m
2026-07-19 KLM1540 LBA → AMS Jul 19, 15:30 UTCJul 19, 17:40 UTC2h 10m
2026-07-19 KLM1539 AMS → MME Jul 19, 12:05 UTCJul 19, 14:20 UTC2h 15m
2026-07-19 KLM46C LIN → AMS Jul 19, 09:15 UTCJul 19, 10:35 UTC1h 20m
2026-07-19 KLM89Q AMS → LIN Jul 19, 06:50 UTCJul 19, 08:00 UTC1h 10m
2026-07-19 KLM90J BHX → AMS Jul 19, 04:10 UTCJul 19, 05:10 UTC1h 0m
2026-07-18 KLM27F AMS → BER Jul 18, 19:25 UTCJul 18, 20:25 UTC1h 0m
2026-07-18 KLM42Y MAD → AMS Jul 18, 15:55 UTCJul 18, 17:45 UTC1h 50m
2026-07-18 KLM31H AMS → MAD Jul 18, 12:15 UTCJul 18, 14:25 UTC2h 10m
2026-07-18 KLM1294 BLL → AMS Jul 18, 09:40 UTCJul 18, 10:40 UTC1h 0m
2026-07-18 KLM59N - Jul 18, 08:00 UTCJul 18, 08:45 UTC45m
2026-07-18 KLM38Y ZRH → AMS Jul 18, 05:10 UTCJul 18, 06:15 UTC1h 5m
2026-07-17 KLM47G - Jul 17, 19:40 UTCJul 17, 20:44 UTC1h 5m
2026-07-17 KLM1540 ALC → AMS Jul 17, 15:35 UTCJul 17, 17:44 UTC2h 10m
2026-07-17 KLM1539 - Jul 17, 12:15 UTCJul 17, 14:35 UTC2h 20m
2026-07-17 KLM84M BOD → AMS Jul 17, 09:30 UTCJul 17, 10:44 UTC1h 15m

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

Mode-S 484FDE frequently asked

What is Mode-S code 484FDE?
484FDE is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BCD.
Where is Mode-S 484FDE registered?
Mode-S code 484FDE is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484FDE broadcasting right now?
Yes. Mode-S 484FDE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484FDE, octal 22047736, decimal 4,739,038.
What flights does 484FDE operate?
Mode-S 484FDE has broadcast 20 distinct callsigns, including KLM90J, KLM1408, KLM1407, KLM27F, KLM1512.