sensors Mode-S transponder

02A181

ICAO 24-bit transponder address · allocated to Tunisia

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

Hex
02A181
Octal
00520601
Decimal
172,417
Country
TN
Tail
TS-IMB
Type
A20N
Broadcasting now · callsign TAR744 · 27,400 ft
Flights observed
10
Distinct callsigns
5
Country
TN
Last broadcast
21h ago

Current position

02A181 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 02A181 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 5 distinct

Callsign Airline Flights Last seen
TAR954 Tunisair 4 2026-04-14
TAR955 - 3 2026-04-13
TAR725 - 1 2026-04-13
TAR724 - 1 2026-04-13
TAR514 - 1 2026-04-12

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 TAR954 TUN → BRU Apr 14, 10:30 UTCApr 14, 11:05 UTC35m
2026-04-13 TAR725 - Apr 13, 20:30 UTCApr 13, 22:10 UTC1h 40m
2026-04-13 TAR724 - Apr 13, 17:10 UTCApr 13, 18:50 UTC1h 40m
2026-04-13 TAR955 - Apr 13, 12:20 UTCApr 13, 13:05 UTC45m
2026-04-13 TAR955 - Apr 13, 11:55 UTCApr 13, 13:05 UTC1h 10m
2026-04-13 TAR955 - Apr 13, 11:10 UTCApr 13, 12:15 UTC1h 5m
2026-04-13 TAR954 TUN → BRU Apr 13, 08:20 UTCApr 13, 09:25 UTC1h 5m
2026-04-13 TAR954 TUN → BRU Apr 13, 07:55 UTCApr 13, 09:25 UTC1h 30m
2026-04-13 TAR954 TUN → BRU Apr 13, 07:35 UTCApr 13, 08:15 UTC40m
2026-04-12 TAR514 - Apr 12, 19:35 UTCApr 12, 20:15 UTC40m

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

Mode-S 02A181 frequently asked

What is Mode-S code 02A181?
02A181 is an ICAO 24-bit transponder address. Allocated to Tunisia. Assigned to TS-IMB.
Where is Mode-S 02A181 registered?
Mode-S code 02A181 is allocated to Tunisia (TN). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 02A181 broadcasting right now?
Yes. Mode-S 02A181 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 02A181, octal 00520601, decimal 172,417.
What flights does 02A181 operate?
Mode-S 02A181 has broadcast 5 distinct callsigns, including TAR954, TAR955, TAR725, TAR724, TAR514.