sensors Mode-S transponder

02A1AC

ICAO 24-bit transponder address · allocated to Tunisia

Currently assigned to TS-INM · AIRBUS A-320neo

Hex
02A1AC
Octal
00520654
Decimal
172,460
Country
TN
Tail
TS-INM
Type
A20N
No current signal · last broadcast 16h ago
Flights observed
11
Distinct callsigns
9
Country
TN
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S 02A1AC.

Country allocation

The ICAO 24-bit address 02A1AC falls within the block assigned to Tunisia (TN) by ICAO Annex 10, Volume III. Every aircraft registered in Tunisia 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 9 distinct

Callsign Airline Flights Last seen
LBT640 - 2 2026-04-14
LBT608 - 2 2026-04-13
LBT641 - 1 2026-04-14
LBT609 - 1 2026-04-13
LBT520 - 1 2026-04-12
LBT517 - 1 2026-04-13
LBT516 - 1 2026-04-13
LBT205 - 1 2026-04-13
LBT204 Nouvelair 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 LBT641 - Apr 14, 10:45 UTCApr 14, 11:05 UTC20m
2026-04-14 LBT640 - Apr 14, 07:10 UTCApr 14, 08:15 UTC1h 5m
2026-04-14 LBT640 - Apr 14, 06:35 UTCApr 14, 07:10 UTC35m
2026-04-13 LBT609 - Apr 13, 21:25 UTCApr 13, 22:10 UTC45m
2026-04-13 LBT608 - Apr 13, 16:15 UTCApr 13, 19:35 UTC3h 20m
2026-04-13 LBT608 - Apr 13, 15:50 UTCApr 13, 19:35 UTC3h 45m
2026-04-13 LBT517 - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 LBT516 - Apr 13, 13:20 UTCApr 13, 14:20 UTC1h 0m
2026-04-13 LBT205 - Apr 13, 09:00 UTCApr 13, 11:10 UTC2h 10m
2026-04-13 LBT204 TUN → DUS Apr 13, 05:50 UTCApr 13, 07:40 UTC1h 50m
2026-04-12 LBT520 - Apr 12, 17:35 UTCApr 12, 19:25 UTC1h 50m

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 TS-INM page for operator, model, and routing details .

Mode-S 02A1AC frequently asked

What is Mode-S code 02A1AC?
02A1AC is an ICAO 24-bit transponder address. Allocated to Tunisia. Assigned to TS-INM.
Where is Mode-S 02A1AC registered?
Mode-S code 02A1AC is allocated to Tunisia (TN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 02A1AC broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 02A1AC, octal 00520654, decimal 172,460.
What flights does 02A1AC operate?
Mode-S 02A1AC has broadcast 9 distinct callsigns, including LBT640, LBT608, LBT641, LBT609, LBT520.