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sensors Mode-S transponder

00F138

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZU-FOH · AIRPLANE FACTORY Sling 2

Hex
00F138
Octal
00170470
Decimal
61,752
Country
ZA
Tail
ZU-FOH
Type
SLG2
No current signal · last broadcast 1d ago
Flights observed
137
Distinct callsigns
1
Country
ZA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 00F138.

Country allocation

The ICAO 24-bit address 00F138 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
ZUFOH - 137 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 ZUFOH - Jul 12, 14:20 UTCJul 12, 15:10 UTC50m
2026-07-12 ZUFOH - Jul 12, 13:01 UTCJul 12, 13:40 UTC40m
2026-07-12 ZUFOH - Jul 12, 10:30 UTCJul 12, 10:55 UTC25m
2026-07-12 ZUFOH - Jul 12, 07:20 UTCJul 12, 07:50 UTC30m
2026-07-10 ZUFOH - Jul 10, 06:45 UTCJul 10, 07:05 UTC20m
2026-07-09 ZUFOH - Jul 9, 10:05 UTCJul 9, 10:25 UTC20m
2026-07-09 ZUFOH - Jul 9, 07:35 UTCJul 9, 08:10 UTC35m
2026-07-08 ZUFOH - Jul 8, 14:20 UTCJul 8, 15:20 UTC1h 0m
2026-07-08 ZUFOH - Jul 8, 12:40 UTCJul 8, 13:25 UTC45m
2026-07-08 ZUFOH - Jul 8, 10:40 UTCJul 8, 11:25 UTC45m
2026-07-07 ZUFOH - Jul 7, 13:15 UTCJul 7, 14:20 UTC1h 5m
2026-07-06 ZUFOH - Jul 6, 13:15 UTCJul 6, 14:40 UTC1h 25m
2026-07-06 ZUFOH - Jul 6, 11:25 UTCJul 6, 12:25 UTC1h 0m
2026-07-05 ZUFOH - Jul 5, 14:15 UTCJul 5, 14:45 UTC30m
2026-07-05 ZUFOH - Jul 5, 12:35 UTCJul 5, 13:35 UTC1h 0m
2026-07-05 ZUFOH - Jul 5, 10:30 UTCJul 5, 11:25 UTC55m
2026-07-05 ZUFOH - Jul 5, 08:35 UTCJul 5, 09:35 UTC1h 0m
2026-07-05 ZUFOH - Jul 5, 07:40 UTCJul 5, 07:50 UTC10m
2026-07-04 ZUFOH - Jul 4, 13:00 UTCJul 4, 14:15 UTC1h 15m
2026-06-30 ZUFOH - Jun 30, 14:35 UTCJun 30, 15:30 UTC55m
2026-06-30 ZUFOH - Jun 30, 12:40 UTCJun 30, 13:50 UTC1h 10m
2026-06-26 ZUFOH - Jun 26, 12:59 UTCJun 26, 13:24 UTC25m
2026-06-25 ZUFOH - Jun 25, 13:29 UTCJun 25, 14:20 UTC50m
2026-06-25 ZUFOH - Jun 25, 08:50 UTCJun 25, 11:25 UTC2h 35m
2026-06-24 ZUFOH - Jun 24, 14:20 UTCJun 24, 15:39 UTC1h 20m
2026-06-24 ZUFOH - Jun 24, 10:04 UTCJun 24, 11:14 UTC1h 10m
2026-06-20 ZUFOH - Jun 20, 11:34 UTCJun 20, 11:59 UTC25m
2026-06-20 ZUFOH - Jun 20, 09:39 UTCJun 20, 10:39 UTC1h 0m
2026-06-20 ZUFOH - Jun 20, 06:29 UTCJun 20, 06:39 UTC10m
2026-06-19 ZUFOH - Jun 19, 14:24 UTCJun 19, 15:29 UTC1h 5m
2026-06-19 ZUFOH - Jun 19, 12:49 UTCJun 19, 13:34 UTC45m
2026-06-19 ZUFOH - Jun 19, 10:29 UTCJun 19, 10:54 UTC25m
2026-06-19 ZUFOH - Jun 19, 08:54 UTCJun 19, 09:40 UTC45m
2026-06-19 ZUFOH - Jun 19, 06:49 UTCJun 19, 07:54 UTC1h 5m
2026-06-18 ZUFOH - Jun 18, 10:55 UTCJun 18, 11:50 UTC55m
2026-06-17 ZUFOH - Jun 17, 15:20 UTCJun 17, 15:50 UTC30m
2026-06-17 ZUFOH - Jun 17, 12:35 UTCJun 17, 13:20 UTC45m
2026-06-17 ZUFOH - Jun 17, 11:10 UTCJun 17, 11:35 UTC25m
2026-06-17 ZUFOH - Jun 17, 10:00 UTCJun 17, 10:20 UTC20m
2026-06-17 ZUFOH - Jun 17, 08:40 UTCJun 17, 08:50 UTC10m
2026-06-16 ZUFOH - Jun 16, 12:35 UTCJun 16, 13:25 UTC50m
2026-06-16 ZUFOH - Jun 16, 08:39 UTCJun 16, 09:15 UTC35m
2026-06-15 ZUFOH - Jun 15, 13:10 UTCJun 15, 13:30 UTC20m
2026-06-14 ZUFOH - Jun 14, 06:40 UTCJun 14, 07:35 UTC55m
2026-06-13 ZUFOH - Jun 13, 10:35 UTCJun 13, 11:35 UTC1h 0m
2026-06-13 ZUFOH - Jun 13, 07:55 UTCJun 13, 08:20 UTC25m
2026-06-13 ZUFOH - Jun 13, 07:00 UTCJun 13, 07:15 UTC15m
2026-06-12 ZUFOH - Jun 12, 10:45 UTCJun 12, 12:05 UTC1h 20m
2026-06-12 ZUFOH - Jun 12, 08:55 UTCJun 12, 09:15 UTC20m
2026-06-09 ZUFOH - Jun 9, 15:15 UTCJun 9, 15:25 UTC10m

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 ZU-FOH page for operator, model, and routing details .

Mode-S 00F138 frequently asked

What is Mode-S code 00F138?
00F138 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZU-FOH.
Where is Mode-S 00F138 registered?
Mode-S code 00F138 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 00F138 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 00F138, octal 00170470, decimal 61,752.
What flights does 00F138 operate?
Mode-S 00F138 has broadcast 1 distinct callsign, including ZUFOH.