sensors Mode-S transponder

4866ED

ICAO 24-bit transponder address · allocated to Netherlands

Currently assigned to PH-YHA · AIRBUS A-321neo

Hex
4866ED
Octal
22063355
Decimal
4,744,941
Country
NL
Tail
PH-YHA
Type
A21N
No current signal · last broadcast 1d ago
Flights observed
11
Distinct callsigns
6
Country
NL
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 4866ED.

Country allocation

The ICAO 24-bit address 4866ED 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 6 distinct

Callsign Airline Flights Last seen
TRA71L - 3 2026-04-13
TRA29L - 3 2026-04-13
TRA18U - 2 2026-04-13
TRA951N - 1 2026-04-12
TRA59H - 1 2026-04-12
TRA56M Transavia Holland 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-13 TRA29L - Apr 13, 16:15 UTCApr 13, 16:30 UTC15m
2026-04-13 TRA29L - Apr 13, 15:50 UTCApr 13, 16:30 UTC40m
2026-04-13 TRA29L - Apr 13, 14:30 UTCApr 13, 16:15 UTC1h 45m
2026-04-13 TRA71L - Apr 13, 12:20 UTCApr 13, 13:10 UTC50m
2026-04-13 TRA71L - Apr 13, 11:55 UTCApr 13, 13:10 UTC1h 15m
2026-04-13 TRA71L - Apr 13, 11:00 UTCApr 13, 12:15 UTC1h 15m
2026-04-13 TRA18U - Apr 13, 08:20 UTCApr 13, 09:50 UTC1h 30m
2026-04-13 TRA18U - Apr 13, 07:50 UTCApr 13, 08:15 UTC25m
2026-04-13 TRA56M AMS → PMI Apr 13, 04:20 UTCApr 13, 06:40 UTC2h 20m
2026-04-12 TRA59H - Apr 12, 19:45 UTCApr 12, 20:15 UTC30m
2026-04-12 TRA951N - Apr 12, 17:15 UTCApr 12, 18:40 UTC1h 25m

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

Mode-S 4866ED frequently asked

What is Mode-S code 4866ED?
4866ED is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-YHA.
Where is Mode-S 4866ED registered?
Mode-S code 4866ED is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4866ED broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4866ED, octal 22063355, decimal 4,744,941.
What flights does 4866ED operate?
Mode-S 4866ED has broadcast 6 distinct callsigns, including TRA71L, TRA29L, TRA18U, TRA951N, TRA59H.