sensors Mode-S transponder

4854CA

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-HBK · BOEING 737-800

Hex
4854CA
Octal
22052312
Decimal
4,740,298
Country
NL
Tail
PH-HBK
Type
B738
No current signal · last broadcast 20h ago
Flights observed
15
Distinct callsigns
8
Country
NL
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 4854CA.

Country allocation

The ICAO 24-bit address 4854CA 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 8 distinct

Callsign Airline Flights Last seen
TRA3N - 3 2026-04-13
TRA27L Transavia Holland 3 2026-04-13
TRA7E - 2 2026-04-13
TRA67E Transavia Holland 2 2026-04-14
TRA46G Transavia Holland 2 2026-04-13
TRA91Y - 1 2026-04-12
TRA44E Transavia Holland 1 2026-04-14
TRA14E - 1 2026-04-12

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 TRA67E BCN → EIN Apr 14, 09:10 UTCApr 14, 10:15 UTC1h 5m
2026-04-14 TRA67E BCN → EIN Apr 14, 08:15 UTCApr 14, 09:05 UTC50m
2026-04-14 TRA44E EIN → BCN Apr 14, 05:15 UTCApr 14, 06:55 UTC1h 40m
2026-04-13 TRA7E - Apr 13, 19:50 UTCApr 13, 20:25 UTC35m
2026-04-13 TRA7E - Apr 13, 17:50 UTCApr 13, 20:10 UTC2h 20m
2026-04-13 TRA3N - Apr 13, 16:15 UTCApr 13, 16:40 UTC25m
2026-04-13 TRA3N - Apr 13, 15:50 UTCApr 13, 16:40 UTC50m
2026-04-13 TRA3N - Apr 13, 14:00 UTCApr 13, 16:15 UTC2h 15m
2026-04-13 TRA46G BCN → RTM Apr 13, 11:55 UTCApr 13, 12:05 UTC10m
2026-04-13 TRA46G BCN → RTM Apr 13, 09:35 UTCApr 13, 12:05 UTC2h 30m
2026-04-13 TRA27L EIN → LIS Apr 13, 08:20 UTCApr 13, 08:30 UTC10m
2026-04-13 TRA27L EIN → LIS Apr 13, 07:55 UTCApr 13, 08:30 UTC35m
2026-04-13 TRA27L EIN → LIS Apr 13, 06:00 UTCApr 13, 08:15 UTC2h 15m
2026-04-12 TRA14E - Apr 12, 18:45 UTCApr 12, 20:15 UTC1h 30m
2026-04-12 TRA91Y - 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-HBK page for operator, model, and routing details .

Mode-S 4854CA frequently asked

What is Mode-S code 4854CA?
4854CA is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-HBK.
Where is Mode-S 4854CA registered?
Mode-S code 4854CA is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4854CA broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4854CA, octal 22052312, decimal 4,740,298.
What flights does 4854CA operate?
Mode-S 4854CA has broadcast 8 distinct callsigns, including TRA3N, TRA27L, TRA7E, TRA67E, TRA46G.