sensors Mode-S transponder

8A05CB

ICAO 24-bit transponder address · allocated to Indonesia

Currently assigned to PK-NAS · BOEING 737-500

Hex
8A05CB
Octal
42402713
Decimal
9,045,451
Country
ID
Tail
PK-NAS
Type
B735
No current signal · last broadcast 23h ago
Flights observed
6
Distinct callsigns
6
Country
ID
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 8A05CB.

Country allocation

The ICAO 24-bit address 8A05CB 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 6 distinct

Callsign Airline Flights Last seen
LKN583 - 1 2026-04-13
LKN582 - 1 2026-04-13
LKN171 - 1 2026-04-13
LKN170 - 1 2026-04-13
LKN091 - 1 2026-04-13
LKN090 - 1 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 LKN170 - Apr 13, 23:25 UTCApr 13, 23:35 UTC10m
2026-04-13 LKN583 - Apr 13, 21:40 UTCApr 13, 22:05 UTC25m
2026-04-13 LKN582 - Apr 13, 13:20 UTCApr 13, 13:45 UTC25m
2026-04-13 LKN091 - Apr 13, 10:25 UTCApr 13, 10:45 UTC20m
2026-04-13 LKN090 - Apr 13, 07:35 UTCApr 13, 07:45 UTC10m
2026-04-13 LKN171 - Apr 13, 05:55 UTCApr 13, 06:10 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 PK-NAS page for operator, model, and routing details .

Mode-S 8A05CB frequently asked

What is Mode-S code 8A05CB?
8A05CB is an ICAO 24-bit transponder address. Allocated to Indonesia. Assigned to PK-NAS.
Where is Mode-S 8A05CB registered?
Mode-S code 8A05CB is allocated to Indonesia (ID). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 8A05CB broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 8A05CB, octal 42402713, decimal 9,045,451.
What flights does 8A05CB operate?
Mode-S 8A05CB has broadcast 6 distinct callsigns, including LKN583, LKN582, LKN171, LKN170, LKN091.