sensors Mode-S transponder

8840FA

ICAO 24-bit transponder address · allocated to Thailand

Currently assigned to HS-PGZ · AIRBUS A-319

Hex
8840FA
Octal
42040372
Decimal
8,929,530
Country
TH
Tail
HS-PGZ
Type
A319
No current signal · last broadcast 13h ago
Flights observed
8
Distinct callsigns
5
Country
TH
Last broadcast
13h ago

Last known position

Most recent position reported by Mode-S 8840FA.

Country allocation

The ICAO 24-bit address 8840FA falls within the block assigned to Thailand (TH) by ICAO Annex 10, Volume III. Every aircraft registered in Thailand 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 5 distinct

Callsign Airline Flights Last seen
BKP712 - 3 2026-04-13
BKP711 - 2 2026-04-13
BKP968 Bangkok Airways 1 2026-04-14
BKP963 Bangkok Airways 1 2026-04-14
BKP100 - 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 BKP968 SIN → USM Apr 14, 09:30 UTCApr 14, 10:00 UTC30m
2026-04-14 BKP963 USM → SIN Apr 14, 07:30 UTCApr 14, 07:50 UTC20m
2026-04-13 BKP712 - Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 BKP712 - Apr 13, 12:10 UTCApr 13, 12:35 UTC25m
2026-04-13 BKP712 - Apr 13, 08:55 UTCApr 13, 09:15 UTC20m
2026-04-13 BKP711 - Apr 13, 05:45 UTCApr 13, 06:00 UTC15m
2026-04-13 BKP711 - Apr 13, 02:40 UTCApr 13, 02:55 UTC15m
2026-04-12 BKP100 - Apr 12, 23:55 UTCApr 13, 00:10 UTC15m

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 HS-PGZ page for operator, model, and routing details .

Mode-S 8840FA frequently asked

What is Mode-S code 8840FA?
8840FA is an ICAO 24-bit transponder address. Allocated to Thailand. Assigned to HS-PGZ.
Where is Mode-S 8840FA registered?
Mode-S code 8840FA is allocated to Thailand (TH). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8840FA broadcasting right now?
No active broadcast right now. Last signal was 13h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8840FA, octal 42040372, decimal 8,929,530.
What flights does 8840FA operate?
Mode-S 8840FA has broadcast 5 distinct callsigns, including BKP712, BKP711, BKP968, BKP963, BKP100.