sensors Mode-S transponder

02A1A3

ICAO 24-bit transponder address · allocated to Tunisia

Currently assigned to TS-IND · AIRBUS A-320

Hex
02A1A3
Octal
00520643
Decimal
172,451
Country
TN
Tail
TS-IND
Type
A320
No current signal · last broadcast 14h ago
Flights observed
13
Distinct callsigns
6
Country
TN
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 02A1A3.

Country allocation

The ICAO 24-bit address 02A1A3 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 6 distinct

Callsign Airline Flights Last seen
LBT554 Nouvelair 3 2026-04-13
LBT508 - 3 2026-04-13
LBT763 - 2 2026-04-14
LBT762 - 2 2026-04-14
LBT509 - 2 2026-04-13
LBT555 - 1 2026-04-13

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-14 LBT763 - Apr 14, 09:55 UTCApr 14, 11:05 UTC1h 10m
2026-04-14 LBT762 - Apr 14, 07:10 UTCApr 14, 08:50 UTC1h 40m
2026-04-14 LBT762 - Apr 14, 06:45 UTCApr 14, 07:10 UTC25m
2026-04-13 LBT509 - Apr 13, 19:50 UTCApr 13, 20:10 UTC20m
2026-04-13 LBT509 - Apr 13, 18:25 UTCApr 13, 20:10 UTC1h 45m
2026-04-13 LBT508 - Apr 13, 16:15 UTCApr 13, 17:00 UTC45m
2026-04-13 LBT508 - Apr 13, 15:50 UTCApr 13, 17:00 UTC1h 10m
2026-04-13 LBT508 - Apr 13, 15:05 UTCApr 13, 16:15 UTC1h 10m
2026-04-13 LBT555 - Apr 13, 10:05 UTCApr 13, 11:50 UTC1h 45m
2026-04-13 LBT554 DJE → CDG Apr 13, 08:20 UTCApr 13, 08:40 UTC20m
2026-04-13 LBT554 DJE → CDG Apr 13, 07:55 UTCApr 13, 08:40 UTC45m
2026-04-13 LBT554 DJE → CDG Apr 13, 06:50 UTCApr 13, 08:15 UTC1h 25m
2026-04-12 LBT763 - Apr 12, 17:15 UTCApr 12, 19:20 UTC2h 5m

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-IND page for operator, model, and routing details .

Mode-S 02A1A3 frequently asked

What is Mode-S code 02A1A3?
02A1A3 is an ICAO 24-bit transponder address. Allocated to Tunisia. Assigned to TS-IND.
Where is Mode-S 02A1A3 registered?
Mode-S code 02A1A3 is allocated to Tunisia (TN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 02A1A3 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 02A1A3, octal 00520643, decimal 172,451.
What flights does 02A1A3 operate?
Mode-S 02A1A3 has broadcast 6 distinct callsigns, including LBT554, LBT508, LBT763, LBT762, LBT509.