sensors Mode-S transponder

00B1F2

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-SXD · AIRBUS A-340-300

Hex
00B1F2
Octal
00130762
Decimal
45,554
Country
ZA
Tail
ZS-SXD
Type
A343
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
4
Country
ZA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 00B1F2.

Country allocation

The ICAO 24-bit address 00B1F2 falls within the block assigned to South Africa (ZA) by ICAO Annex 10, Volume III. Every aircraft registered in South Africa 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 4 distinct

Callsign Airline Flights Last seen
SAA281 - 1 2026-04-13
SAA280 South African Airways 1 2026-04-13
SAA191 - 1 2026-04-13
SAA190 - 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 SAA280 JNB → PER Apr 13, 19:10 UTCApr 13, 19:30 UTC20m
2026-04-13 SAA191 - Apr 13, 16:30 UTCApr 13, 17:10 UTC40m
2026-04-13 SAA190 - Apr 13, 08:00 UTCApr 13, 08:15 UTC15m
2026-04-13 SAA281 - Apr 13, 02:00 UTCApr 13, 02:30 UTC30m

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 ZS-SXD page for operator, model, and routing details .

Mode-S 00B1F2 frequently asked

What is Mode-S code 00B1F2?
00B1F2 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-SXD.
Where is Mode-S 00B1F2 registered?
Mode-S code 00B1F2 is allocated to South Africa (ZA). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 00B1F2 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 00B1F2, octal 00130762, decimal 45,554.
What flights does 00B1F2 operate?
Mode-S 00B1F2 has broadcast 4 distinct callsigns, including SAA281, SAA280, SAA191, SAA190.