sensors Mode-S transponder

8A01E0

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-GMF · BOEING 737-800

Hex
8A01E0
Octal
42400740
Decimal
9,044,448
Country
ID
Tail
PK-GMF
Type
B738
No current signal · last broadcast 2d ago
Flights observed
1
Distinct callsigns
1
Country
ID
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 8A01E0.

Country allocation

The ICAO 24-bit address 8A01E0 falls within the block assigned to Indonesia (ID) by ICAO Annex 10, Volume III. Every aircraft registered in Indonesia 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 1 distinct

Callsign Airline Flights Last seen
GIA860 Garuda Indonesia 1 2026-04-12

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-12 GIA860 CGK → HKG Apr 12, 18:05 UTCApr 12, 18:25 UTC20m

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 PK-GMF page for operator, model, and routing details .

Mode-S 8A01E0 frequently asked

What is Mode-S code 8A01E0?
8A01E0 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-GMF.
Where is Mode-S 8A01E0 registered?
Mode-S code 8A01E0 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A01E0 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A01E0, octal 42400740, decimal 9,044,448.
What flights does 8A01E0 operate?
Mode-S 8A01E0 has broadcast 1 distinct callsign, including GIA860.