sensors Mode-S transponder

4868B9

ICAO 24-bit transponder address · allocated to Netherlands

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

Hex
4868B9
Octal
22064271
Decimal
4,745,401
Country
NL
Tail
PH-YHE
Type
A21N
Broadcasting now · callsign TRA56M · 37,000 ft
Flights observed
12
Distinct callsigns
7
Country
NL
Last broadcast
18h ago

Current position

4868B9 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 4868B9 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 7 distinct

Callsign Airline Flights Last seen
TRA4Z - 4 2026-04-13
TRA16U - 2 2026-04-13
TRA14R Transavia Holland 2 2026-04-14
TRA99W - 1 2026-04-13
TRA94K - 1 2026-04-12
TRA25W - 1 2026-04-14
TRA23F Transavia Holland 1 2026-04-13

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-14 TRA25W - Apr 14, 10:05 UTCApr 14, 11:05 UTC1h 0m
2026-04-14 TRA14R AMS → FNC Apr 14, 07:25 UTCApr 14, 07:35 UTC10m
2026-04-14 TRA14R AMS → FNC Apr 14, 05:15 UTCApr 14, 06:35 UTC1h 20m
2026-04-13 TRA16U - Apr 13, 19:50 UTCApr 13, 21:45 UTC1h 55m
2026-04-13 TRA16U - Apr 13, 19:25 UTCApr 13, 20:10 UTC45m
2026-04-13 TRA99W - Apr 13, 16:15 UTCApr 13, 18:25 UTC2h 10m
2026-04-13 TRA4Z - Apr 13, 12:20 UTCApr 13, 14:05 UTC1h 45m
2026-04-13 TRA4Z - Apr 13, 11:55 UTCApr 13, 14:05 UTC2h 10m
2026-04-13 TRA4Z - Apr 13, 08:20 UTCApr 13, 12:15 UTC3h 55m
2026-04-13 TRA4Z - Apr 13, 07:55 UTCApr 13, 11:50 UTC3h 55m
2026-04-13 TRA23F AMS → RAK Apr 13, 05:50 UTCApr 13, 08:15 UTC2h 25m
2026-04-12 TRA94K - Apr 12, 19:25 UTCApr 12, 20:15 UTC50m

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

Mode-S 4868B9 frequently asked

What is Mode-S code 4868B9?
4868B9 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-YHE.
Where is Mode-S 4868B9 registered?
Mode-S code 4868B9 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4868B9 broadcasting right now?
Yes. Mode-S 4868B9 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4868B9, octal 22064271, decimal 4,745,401.
What flights does 4868B9 operate?
Mode-S 4868B9 has broadcast 7 distinct callsigns, including TRA4Z, TRA16U, TRA14R, TRA99W, TRA94K.