Apparatus

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sensors Mode-S transponder

484F18

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-BCB · BOEING 737-800

Hex
484F18
Octal
22047430
Decimal
4,738,840
Country
NL
Tail
PH-BCB
Type
B738
No current signal · last broadcast Jul 26, 16:45 UTC
Flights observed
586
Distinct callsigns
20
Country
NL
Last broadcast
Jul 26, 16:45 UTC

Last known position

Most recent position reported by Mode-S 484F18.

Country allocation

The ICAO 24-bit address 484F18 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
KLM80R - 9 2026-06-29
KLM50N KLM Royal Dutch Airlines 8 2026-07-26
KLM1633 KLM Royal Dutch Airlines 8 2026-07-26
KLM1377 - 8 2026-06-28
KLM959 KLM Royal Dutch Airlines 7 2026-07-21
KLM941 KLM Royal Dutch Airlines 6 2026-07-05
KLM89D - 6 2026-07-01
KLM88U KLM Royal Dutch Airlines 6 2026-07-21
KLM87R KLM Royal Dutch Airlines 6 2026-07-26
KLM80Y KLM Royal Dutch Airlines 6 2026-05-28
KLM68B - 6 2026-07-05
KLM67Q - 6 2026-06-21
KLM56W KLM Royal Dutch Airlines 6 2026-07-21
KLM41U KLM Royal Dutch Airlines 6 2026-07-20
KLM39K KLM Royal Dutch Airlines 6 2026-05-28
KLM28W KLM Royal Dutch Airlines 6 2026-06-21
KLM1961 KLM Royal Dutch Airlines 6 2026-07-21
KLM1958 KLM Royal Dutch Airlines 6 2026-07-22
KLM1232 KLM Royal Dutch Airlines 6 2026-07-26
KLM99H - 5 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 KLM50N VCE → AMS Jul 26, 15:10 UTCJul 26, 16:45 UTC1h 35m
2026-07-26 KLM1633 AMS → VCE Jul 26, 12:50 UTCJul 26, 14:10 UTC1h 20m
2026-07-26 KLM1232 GOT → AMS Jul 26, 10:15 UTCJul 26, 11:25 UTC1h 10m
2026-07-26 KLM87R AMS → GOT Jul 26, 08:05 UTCJul 26, 09:05 UTC1h 0m
2026-07-26 KLM1628 MXP → AMS Jul 26, 04:15 UTCJul 26, 05:45 UTC1h 30m
2026-07-25 KLM43F AMS → NCE Jul 25, 19:05 UTCJul 25, 20:20 UTC1h 15m
2026-07-25 KLM50N VCE → AMS Jul 25, 16:10 UTCJul 25, 17:40 UTC1h 30m
2026-07-25 KLM1633 AMS → VCE Jul 25, 13:20 UTCJul 25, 14:45 UTC1h 25m
2026-07-25 KLM78B KRK → AMS Jul 25, 10:30 UTCJul 25, 12:00 UTC1h 30m
2026-07-25 KLM61R AMS → KRK Jul 25, 07:45 UTCJul 25, 09:20 UTC1h 35m
2026-07-25 KLM50A AMS → BCN Jul 25, 05:10 UTCJul 25, 05:55 UTC45m
2026-07-24 KLM47K AMS → MAN Jul 24, 20:00 UTCJul 24, 20:50 UTC50m
2026-07-24 KLM98A OTP → AMS Jul 24, 14:40 UTCJul 24, 17:20 UTC2h 40m
2026-07-24 KLM51E AMS → BRS Jul 24, 11:00 UTCJul 24, 13:15 UTC2h 15m
2026-07-23 KLM88C LHR → AMS Jul 23, 05:10 UTCJul 23, 06:20 UTC1h 10m
2026-07-22 KLM1145 AMS → OSL Jul 22, 20:30 UTCJul 22, 21:40 UTC1h 10m
2026-07-22 KLM1412 CDG → AMS Jul 22, 18:30 UTCJul 22, 19:15 UTC45m
2026-07-22 KLM1411 AMS → CDG Jul 22, 16:05 UTCJul 22, 16:50 UTC45m
2026-07-22 KLM80B AGP → AMS Jul 22, 12:10 UTCJul 22, 14:35 UTC2h 25m
2026-07-22 KLM1958 ZRH → AMS Jul 22, 03:20 UTCJul 22, 10:25 UTC7h 5m
2026-07-21 KLM1961 AMS → ZRH Jul 21, 20:00 UTCJul 21, 22:35 UTC2h 35m
2026-07-21 KLM88U NCL → AMS Jul 21, 16:55 UTCJul 21, 17:55 UTC1h 0m
2026-07-21 KLM959 AMS → NCL Jul 21, 14:50 UTCJul 21, 15:45 UTC55m
2026-07-21 KLM1972 BUD → AMS Jul 21, 11:50 UTCJul 21, 13:40 UTC1h 50m
2026-07-21 KLM39J AMS → SPU Jul 21, 08:15 UTCJul 21, 09:45 UTC1h 30m
2026-07-21 KLM56W BGO → AMS Jul 21, 04:20 UTCJul 21, 06:25 UTC2h 5m
2026-07-20 KLM41U AMS → NCE Jul 20, 19:25 UTCJul 20, 21:30 UTC2h 5m
2026-07-20 KLM50N VCE → AMS Jul 20, 16:10 UTCJul 20, 17:45 UTC1h 35m
2026-07-20 KLM1633 AMS → VCE Jul 20, 13:45 UTCJul 20, 15:05 UTC1h 20m
2026-07-20 KLM1512 NWI → AMS Jul 20, 09:35 UTCJul 20, 11:25 UTC1h 50m
2026-07-20 KLM87P AMS → BCN Jul 20, 06:25 UTCJul 20, 08:15 UTC1h 50m
2026-07-19 KLM10X NCE → AMS Jul 19, 16:15 UTCJul 19, 18:00 UTC1h 45m
2026-07-19 KLM41F AMS → NCE Jul 19, 13:20 UTCJul 19, 15:00 UTC1h 40m
2026-07-19 KLM1512 - Jul 19, 10:15 UTCJul 19, 12:00 UTC1h 45m
2026-07-19 KLM87P AMS → BCN Jul 19, 07:15 UTCJul 19, 09:00 UTC1h 45m
2026-07-19 KLM68N NCE → AMS Jul 19, 04:30 UTCJul 19, 06:00 UTC1h 30m
2026-07-18 KLM99H - Jul 18, 18:40 UTCJul 18, 20:15 UTC1h 35m
2026-07-18 KLM84X - Jul 18, 16:10 UTCJul 18, 17:25 UTC1h 15m
2026-07-18 KLM89F - Jul 18, 13:20 UTCJul 18, 14:45 UTC1h 25m
2026-07-18 KLM1166 HEL → AMS Jul 18, 10:15 UTCJul 18, 11:30 UTC1h 15m
2026-07-18 KLM1165 AMS → HEL Jul 18, 08:00 UTCJul 18, 09:15 UTC1h 15m
2026-07-18 KLM56W OPO → AMS Jul 18, 04:10 UTCJul 18, 06:15 UTC2h 5m
2026-07-17 KLM41U AMS → NCE Jul 17, 19:35 UTCJul 17, 21:50 UTC2h 15m
2026-07-17 KLM1048 - Jul 17, 17:20 UTCJul 17, 18:05 UTC45m
2026-07-17 KLM93B - Jul 17, 15:10 UTCJul 17, 15:55 UTC45m
2026-07-17 KLM84H BER → AMS Jul 17, 12:40 UTCJul 17, 13:40 UTC1h 0m
2026-07-17 KLM29G AMS → BER Jul 17, 10:50 UTCJul 17, 11:45 UTC55m
2026-07-17 KLM78W ARN → AMS Jul 17, 07:50 UTCJul 17, 09:30 UTC1h 40m
2026-07-17 KLM23V - Jul 17, 05:15 UTCJul 17, 06:45 UTC1h 30m
2026-07-16 KLM60M - Jul 16, 17:54 UTCJul 16, 19:30 UTC1h 35m

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

Mode-S 484F18 frequently asked

What is Mode-S code 484F18?
484F18 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-BCB.
Where is Mode-S 484F18 registered?
Mode-S code 484F18 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 484F18 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 16:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 484F18, octal 22047430, decimal 4,738,840.
What flights does 484F18 operate?
Mode-S 484F18 has broadcast 20 distinct callsigns, including KLM80R, KLM50N, KLM1633, KLM1377, KLM959.