sensors Mode-S transponder

4868E2

ICAO 24-bit transponder address · allocated to Netherlands

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

Hex
4868E2
Octal
22064342
Decimal
4,745,442
Country
NL
Tail
PH-YHQ
Type
A21N
No current signal · last broadcast 15h ago
Flights observed
11
Distinct callsigns
7
Country
NL
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 4868E2.

Country allocation

The ICAO 24-bit address 4868E2 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
TRA87B - 3 2026-04-13
TRA6T - 2 2026-04-13
TRA30N - 2 2026-04-14
TRA8F - 1 2026-04-12
TRA68A - 1 2026-04-13
TRA6729 - 1 2026-04-14
TRA2K Transavia Holland 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 TRA30N - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 TRA30N - Apr 14, 08:40 UTCApr 14, 09:05 UTC25m
2026-04-14 TRA6729 - Apr 14, 05:15 UTCApr 14, 07:10 UTC1h 55m
2026-04-13 TRA6T - Apr 13, 20:10 UTCApr 13, 23:00 UTC2h 50m
2026-04-13 TRA6T - Apr 13, 18:50 UTCApr 13, 20:10 UTC1h 20m
2026-04-13 TRA87B - Apr 13, 16:15 UTCApr 13, 17:10 UTC55m
2026-04-13 TRA87B - Apr 13, 15:50 UTCApr 13, 17:10 UTC1h 20m
2026-04-13 TRA87B - Apr 13, 13:20 UTCApr 13, 16:15 UTC2h 55m
2026-04-13 TRA68A - Apr 13, 08:45 UTCApr 13, 11:35 UTC2h 50m
2026-04-13 TRA2K AGP → EIN Apr 13, 04:20 UTCApr 13, 07:00 UTC2h 40m
2026-04-12 TRA8F - Apr 12, 17:15 UTCApr 12, 19:30 UTC2h 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-YHQ page for operator, model, and routing details .

Mode-S 4868E2 frequently asked

What is Mode-S code 4868E2?
4868E2 is an ICAO 24-bit transponder address. Allocated to Netherlands. Assigned to PH-YHQ.
Where is Mode-S 4868E2 registered?
Mode-S code 4868E2 is allocated to Netherlands (NL). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 4868E2 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 4868E2, octal 22064342, decimal 4,745,442.
What flights does 4868E2 operate?
Mode-S 4868E2 has broadcast 7 distinct callsigns, including TRA87B, TRA6T, TRA30N, TRA8F, TRA68A.