sensors Mode-S transponder

8A1822

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-LFK · BOEING 737-900

Hex
8A1822
Octal
42414042
Decimal
9,050,146
Country
ID
Tail
PK-LFK
Type
B739
Broadcasting now · callsign LNI971 · 23,375 ft
Flights observed
4
Distinct callsigns
3
Country
ID
Last broadcast
20h ago

Current position

8A1822 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 8A1822 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 3 distinct

Callsign Airline Flights Last seen
LNI692 Lion Mentari Airlines 2 2026-04-14
LNI985 Lion Mentari Airlines 1 2026-04-13
LNI697 Lion Mentari Airlines 1 2026-04-14

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-14 LNI692 CGK → SUB Apr 14, 08:05 UTCApr 14, 08:20 UTC15m
2026-04-14 LNI697 SUB → CGK Apr 14, 05:30 UTCApr 14, 05:40 UTC10m
2026-04-13 LNI692 - Apr 13, 09:20 UTCApr 13, 09:45 UTC25m
2026-04-13 LNI985 UPG → CGK Apr 13, 07:50 UTCApr 13, 08:05 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 PK-LFK page for operator, model, and routing details .

Mode-S 8A1822 frequently asked

What is Mode-S code 8A1822?
8A1822 is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-LFK.
Where is Mode-S 8A1822 registered?
Mode-S code 8A1822 is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A1822 broadcasting right now?
Yes. Mode-S 8A1822 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A1822, octal 42414042, decimal 9,050,146.
What flights does 8A1822 operate?
Mode-S 8A1822 has broadcast 3 distinct callsigns, including LNI692, LNI985, LNI697.