sensors Mode-S transponder

009131

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-YAP · EMBRAER ERJ-190-100

Hex
009131
Octal
00110461
Decimal
37,169
Country
ZA
Tail
ZS-YAP
Type
E190
No current signal · last broadcast 18h ago
Flights observed
8
Distinct callsigns
8
Country
ZA
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S 009131.

Country allocation

The ICAO 24-bit address 009131 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 8 distinct

Callsign Airline Flights Last seen
LNK706M - 1 2026-04-12
LNK569Q Airlink 1 2026-04-13
LNK552N - 1 2026-04-14
LNK301S - 1 2026-04-13
LNK300R Airlink 1 2026-04-13
LNK124R Airlink 1 2026-04-14
LNK121Q - 1 2026-04-13
LNK120P - 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 LNK124R JNB → WDH Apr 14, 09:10 UTCApr 14, 09:40 UTC30m
2026-04-14 LNK552N - Apr 14, 05:25 UTCApr 14, 06:00 UTC35m
2026-04-13 LNK569Q JNB → DUR Apr 13, 16:50 UTCApr 13, 17:15 UTC25m
2026-04-13 LNK301S - Apr 13, 13:20 UTCApr 13, 14:20 UTC1h 0m
2026-04-13 LNK300R JNB → MUB Apr 13, 10:50 UTCApr 13, 11:30 UTC40m
2026-04-13 LNK121Q - Apr 13, 08:30 UTCApr 13, 09:00 UTC30m
2026-04-13 LNK120P - Apr 13, 05:00 UTCApr 13, 05:30 UTC30m
2026-04-12 LNK706M - Apr 12, 17:15 UTCApr 12, 17:30 UTC15m

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

Mode-S 009131 frequently asked

What is Mode-S code 009131?
009131 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-YAP.
Where is Mode-S 009131 registered?
Mode-S code 009131 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 009131 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 009131, octal 00110461, decimal 37,169.
What flights does 009131 operate?
Mode-S 009131 has broadcast 8 distinct callsigns, including LNK706M, LNK569Q, LNK552N, LNK301S, LNK300R.