Apparatus

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sensors Mode-S transponder

009434

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-SNN · DIAMOND DA-20

Hex
009434
Octal
00112064
Decimal
37,940
Country
ZA
Tail
ZS-SNN
Type
DV20
No current signal · last broadcast 17h ago
Flights observed
10
Distinct callsigns
1
Country
ZA
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S 009434.

Country allocation

The ICAO 24-bit address 009434 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 1 distinct

Callsign Airline Flights Last seen
ZSSNN - 10 2026-04-14

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 ZSSNN - Apr 14, 09:20 UTCApr 14, 09:30 UTC10m
2026-04-13 ZSSNN - Apr 13, 17:35 UTCApr 13, 18:00 UTC25m
2026-04-13 ZSSNN - Apr 13, 16:15 UTCApr 13, 16:25 UTC10m
2026-04-13 ZSSNN - Apr 13, 16:05 UTCApr 13, 16:15 UTC10m
2026-04-13 ZSSNN - Apr 13, 13:35 UTCApr 13, 14:10 UTC35m
2026-04-13 ZSSNN - Apr 13, 12:20 UTCApr 13, 12:30 UTC10m
2026-04-13 ZSSNN - Apr 13, 12:00 UTCApr 13, 12:15 UTC15m
2026-04-13 ZSSNN - Apr 13, 09:55 UTCApr 13, 10:30 UTC35m
2026-04-13 ZSSNN - Apr 13, 08:20 UTCApr 13, 08:40 UTC20m
2026-04-13 ZSSNN - Apr 13, 08:10 UTCApr 13, 08:40 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-SNN page for operator, model, and routing details .

Mode-S 009434 frequently asked

What is Mode-S code 009434?
009434 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-SNN.
Where is Mode-S 009434 registered?
Mode-S code 009434 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 009434 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 009434, octal 00112064, decimal 37,940.
What flights does 009434 operate?
Mode-S 009434 has broadcast 1 distinct callsign, including ZSSNN.