sensors Mode-S transponder

00A3B9

ICAO 24-bit transponder address · allocated to South Africa

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

Hex
00A3B9
Octal
00121671
Decimal
41,913
Country
ZA
Tail
ZS-YAM
Type
E190
No current signal · last broadcast 15h ago
Flights observed
9
Distinct callsigns
7
Country
ZA
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 00A3B9.

Country allocation

The ICAO 24-bit address 00A3B9 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 7 distinct

Callsign Airline Flights Last seen
LNK326B - 3 2026-04-14
LNK612Y - 1 2026-04-13
LNK611X Airlink 1 2026-04-13
LNK607W - 1 2026-04-12
LNK329E Airlink 1 2026-04-14
LNK328D - 1 2026-04-13
LNK327C - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 LNK326B - Apr 14, 09:10 UTCApr 14, 09:25 UTC15m
2026-04-14 LNK326B - Apr 14, 08:50 UTCApr 14, 09:05 UTC15m
2026-04-14 LNK329E WDH → CPT Apr 14, 06:50 UTCApr 14, 07:10 UTC20m
2026-04-13 LNK328D - Apr 13, 16:20 UTCApr 13, 16:45 UTC25m
2026-04-13 LNK327C - Apr 13, 13:15 UTCApr 13, 13:30 UTC15m
2026-04-13 LNK326B - Apr 13, 08:55 UTCApr 13, 09:20 UTC25m
2026-04-13 LNK612Y - Apr 13, 07:35 UTCApr 13, 07:50 UTC15m
2026-04-13 LNK611X CPT → KIM Apr 13, 04:30 UTCApr 13, 04:55 UTC25m
2026-04-12 LNK607W - Apr 12, 18:15 UTCApr 12, 18:40 UTC25m

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

Mode-S 00A3B9 frequently asked

What is Mode-S code 00A3B9?
00A3B9 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-YAM.
Where is Mode-S 00A3B9 registered?
Mode-S code 00A3B9 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 00A3B9 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 00A3B9, octal 00121671, decimal 41,913.
What flights does 00A3B9 operate?
Mode-S 00A3B9 has broadcast 7 distinct callsigns, including LNK326B, LNK612Y, LNK611X, LNK607W, LNK329E.