Apparatus

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sensors Mode-S transponder

00A840

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-PFR · CESSNA 206 Stationair

Hex
00A840
Octal
00124100
Decimal
43,072
Country
ZA
Tail
ZS-PFR
Type
C206
No current signal · last broadcast Jul 25, 14:25 UTC
Flights observed
108
Distinct callsigns
1
Country
ZA
Last broadcast
Jul 25, 14:25 UTC

Last known position

Most recent position reported by Mode-S 00A840.

Country allocation

The ICAO 24-bit address 00A840 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
ZSODF - 108 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 ZSODF - Jul 25, 13:20 UTCJul 25, 13:55 UTC35m
2026-07-25 ZSODF - Jul 25, 10:20 UTCJul 25, 10:55 UTC35m
2026-07-25 ZSODF - Jul 25, 07:05 UTCJul 25, 07:20 UTC15m
2026-07-24 ZSODF - Jul 24, 14:00 UTCJul 24, 14:15 UTC15m
2026-07-24 ZSODF - Jul 24, 12:40 UTCJul 24, 13:20 UTC40m
2026-07-24 ZSODF - Jul 24, 07:15 UTCJul 24, 07:25 UTC10m
2026-07-23 ZSODF - Jul 23, 09:40 UTCJul 23, 10:00 UTC20m
2026-07-23 ZSODF - Jul 23, 05:35 UTCJul 23, 05:55 UTC20m
2026-07-20 ZSODF - Jul 20, 12:55 UTCJul 20, 13:10 UTC15m
2026-07-20 ZSODF - Jul 20, 11:50 UTCJul 20, 12:20 UTC30m
2026-07-20 ZSODF - Jul 20, 08:15 UTCJul 20, 08:40 UTC25m
2026-07-20 ZSODF - Jul 20, 07:15 UTCJul 20, 07:30 UTC15m
2026-07-19 ZSODF - Jul 19, 09:40 UTCJul 19, 10:25 UTC45m
2026-07-18 ZSODF - Jul 18, 14:40 UTCJul 18, 14:50 UTC10m
2026-07-18 ZSODF - Jul 18, 13:40 UTCJul 18, 13:50 UTC10m
2026-07-18 ZSODF - Jul 18, 12:30 UTCJul 18, 13:00 UTC30m
2026-07-18 ZSODF - Jul 18, 09:35 UTCJul 18, 10:00 UTC25m
2026-07-18 ZSODF - Jul 18, 07:25 UTCJul 18, 07:40 UTC15m
2026-07-14 ZSODF - Jul 14, 12:30 UTCJul 14, 12:40 UTC10m
2026-07-14 ZSODF - Jul 14, 11:20 UTCJul 14, 11:50 UTC30m
2026-07-13 ZSODF - Jul 13, 10:00 UTCJul 13, 10:30 UTC30m
2026-07-13 ZSODF - Jul 13, 07:30 UTCJul 13, 07:45 UTC15m
2026-07-11 ZSODF - Jul 11, 13:40 UTCJul 11, 13:55 UTC15m
2026-07-11 ZSODF - Jul 11, 12:35 UTCJul 11, 13:05 UTC30m
2026-07-11 ZSODF - Jul 11, 09:50 UTCJul 11, 10:20 UTC30m
2026-07-11 ZSODF - Jul 11, 07:15 UTCJul 11, 07:25 UTC10m
2026-07-08 ZSODF - Jul 8, 09:35 UTCJul 8, 10:05 UTC30m
2026-07-08 ZSODF - Jul 8, 06:35 UTCJul 8, 07:05 UTC30m
2026-07-06 ZSODF - Jul 6, 12:50 UTCJul 6, 13:00 UTC10m
2026-07-06 ZSODF - Jul 6, 11:40 UTCJul 6, 12:10 UTC30m
2026-07-06 ZSODF - Jul 6, 08:50 UTCJul 6, 09:25 UTC35m
2026-07-06 ZSODF - Jul 6, 08:15 UTCJul 6, 08:30 UTC15m
2026-07-05 ZSODF - Jul 5, 12:40 UTCJul 5, 13:15 UTC35m
2026-07-04 ZSODF - Jul 4, 07:45 UTCJul 4, 08:00 UTC15m
2026-07-04 ZSODF - Jul 4, 07:00 UTCJul 4, 07:10 UTC10m
2026-06-30 ZSODF - Jun 30, 16:10 UTCJun 30, 16:30 UTC20m
2026-06-30 ZSODF - Jun 30, 15:05 UTCJun 30, 15:35 UTC30m
2026-06-27 ZSODF - Jun 27, 06:15 UTCJun 27, 06:35 UTC20m
2026-06-26 ZSODF - Jun 26, 11:49 UTCJun 26, 12:10 UTC20m
2026-06-26 ZSODF - Jun 26, 08:05 UTCJun 26, 08:20 UTC15m
2026-06-22 ZSODF - Jun 22, 12:19 UTCJun 22, 12:30 UTC10m
2026-06-22 ZSODF - Jun 22, 11:14 UTCJun 22, 11:44 UTC30m
2026-06-20 ZSODF - Jun 20, 09:44 UTCJun 20, 10:15 UTC30m
2026-06-20 ZSODF - Jun 20, 07:34 UTCJun 20, 07:49 UTC15m
2026-06-16 ZSODF - Jun 16, 12:50 UTCJun 16, 13:00 UTC10m
2026-06-16 ZSODF - Jun 16, 11:40 UTCJun 16, 12:10 UTC30m
2026-06-15 ZSODF - Jun 15, 10:05 UTCJun 15, 10:35 UTC30m
2026-06-15 ZSODF - Jun 15, 08:45 UTCJun 15, 08:54 UTC10m
2026-05-25 ZSODF - May 25, 12:55 UTCMay 25, 13:05 UTC10m
2026-05-25 ZSODF - May 25, 11:45 UTCMay 25, 12:15 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-PFR page for operator, model, and routing details .

Mode-S 00A840 frequently asked

What is Mode-S code 00A840?
00A840 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-PFR.
Where is Mode-S 00A840 registered?
Mode-S code 00A840 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 00A840 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 14:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 00A840, octal 00124100, decimal 43,072.
What flights does 00A840 operate?
Mode-S 00A840 has broadcast 1 distinct callsign, including ZSODF.