sensors Mode-S transponder

02A261

ICAO 24-bit transponder address · allocated to Tunisia

Currently assigned to TS-ITB · AIRBUS A-320

Hex
02A261
Octal
00521141
Decimal
172,641
Country
TN
Tail
TS-ITB
Type
A320
No current signal · last broadcast 2d ago
Flights observed
1
Distinct callsigns
1
Country
TN
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S 02A261.

Country allocation

The ICAO 24-bit address 02A261 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 1 distinct

Callsign Airline Flights Last seen
TAR723 - 1 2026-04-12

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-12 TAR723 - Apr 12, 18:25 UTCApr 12, 20:15 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-ITB page for operator, model, and routing details .

Mode-S 02A261 frequently asked

What is Mode-S code 02A261?
02A261 is an ICAO 24-bit transponder address. Allocated to Tunisia. Assigned to TS-ITB.
Where is Mode-S 02A261 registered?
Mode-S code 02A261 is allocated to Tunisia (TN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 02A261 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 02A261, octal 00521141, decimal 172,641.
What flights does 02A261 operate?
Mode-S 02A261 has broadcast 1 distinct callsign, including TAR723.