Apparatus

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sensors Mode-S transponder

008431

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-CMM · BOMBARDIER Regional Jet CRJ-900

Hex
008431
Octal
00102061
Decimal
33,841
Country
ZA
Tail
ZS-CMM
Type
CRJ9
No current signal · last broadcast 1d ago
Flights observed
60
Distinct callsigns
20
Country
ZA
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 008431.

Country allocation

The ICAO 24-bit address 008431 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 20 distinct

Callsign Airline Flights Last seen
KEM904 - 8 2026-06-16
KEM831 CemAir 7 2026-06-17
KEM834 CemAir 6 2026-06-12
KEM450 CemAir 3 2026-06-09
KEM211 - 3 2026-06-18
KEM992 CemAir 2 2026-05-28
KEM981 CemAir 2 2026-06-09
KEM901 - 2 2026-06-16
KEM842 CemAir 2 2026-05-25
KEM839 CemAir 2 2026-05-25
KEM838 CemAir 2 2026-05-22
KEM519 CemAir 2 2026-06-26
KEM210 - 2 2026-06-18
KEM202 - 2 2026-06-18
TM306 - 1 2026-05-17
TM302 - 1 2026-05-17
TM130 - 1 2026-05-17
KEM991 CemAir 1 2026-05-23
KEM980 CemAir 1 2026-06-09
KEM905 CemAir 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-26 KEM519 KIM → JNB Jun 26, 15:10 UTCJun 26, 15:29 UTC20m
2026-06-26 KEM518 JNB → KIM Jun 26, 12:59 UTCJun 26, 13:15 UTC15m
2026-06-18 KEM211 - Jun 18, 16:50 UTCJun 18, 17:10 UTC20m
2026-06-18 KEM211 - Jun 18, 14:25 UTCJun 18, 14:40 UTC15m
2026-06-18 KEM210 - Jun 18, 10:25 UTCJun 18, 13:05 UTC2h 40m
2026-06-18 KEM202 - Jun 18, 07:15 UTCJun 18, 07:40 UTC25m
2026-06-18 KEM201 - Jun 18, 05:00 UTCJun 18, 05:20 UTC20m
2026-06-17 KEM831 JNB → CPT Jun 17, 06:30 UTCJun 17, 06:50 UTC20m
2026-06-17 KEM831 JNB → CPT Jun 17, 05:10 UTCJun 17, 05:30 UTC20m
2026-06-16 KEM905 DUR → CPT Jun 16, 14:55 UTCJun 16, 15:20 UTC25m
2026-06-16 KEM904 - Jun 16, 10:35 UTCJun 16, 10:49 UTC15m
2026-06-16 KEM901 - Jun 16, 09:15 UTCJun 16, 09:40 UTC25m
2026-06-16 KEM900 - Jun 16, 04:55 UTCJun 16, 05:15 UTC20m
2026-06-15 KEM904 - Jun 15, 14:10 UTCJun 15, 14:40 UTC30m
2026-06-15 KEM904 - Jun 15, 09:45 UTCJun 15, 10:05 UTC20m
2026-06-15 KEM904 - Jun 15, 08:25 UTCJun 15, 08:49 UTC25m
2026-06-14 KEM904 CPT → DUR Jun 14, 05:10 UTCJun 14, 05:25 UTC15m
2026-06-12 KEM904 CPT → DUR Jun 12, 15:15 UTCJun 12, 19:40 UTC4h 25m
2026-06-12 KEM904 CPT → DUR Jun 12, 14:01 UTCJun 12, 14:30 UTC30m
2026-06-12 KEM904 CPT → DUR Jun 12, 10:00 UTCJun 12, 10:25 UTC25m
2026-06-12 KEM901 DUR → CPT Jun 12, 08:45 UTCJun 12, 09:15 UTC30m
2026-06-12 KEM834 JNB → CPT Jun 12, 04:10 UTCJun 12, 04:30 UTC20m
2026-06-11 KEM834 JNB → CPT Jun 11, 15:10 UTCJun 11, 19:40 UTC4h 30m
2026-06-11 KEM834 JNB → CPT Jun 11, 09:20 UTCJun 11, 09:50 UTC30m
2026-06-11 KEM834 JNB → CPT Jun 11, 07:55 UTCJun 11, 08:10 UTC15m
2026-06-09 KEM450 JNB → GRJ Jun 9, 12:50 UTCJun 9, 13:05 UTC15m
2026-06-09 KEM981 HDS → JNB Jun 9, 11:15 UTCJun 9, 11:40 UTC25m
2026-06-09 KEM980 JNB → HDS Jun 9, 09:40 UTCJun 9, 10:00 UTC20m
2026-06-05 KEM519 KIM → JNB Jun 5, 12:55 UTCJun 5, 15:30 UTC2h 35m
2026-06-03 KEM981 HDS → JNB Jun 3, 10:50 UTCJun 3, 13:20 UTC2h 30m
2026-05-31 KEM450 JNB → GRJ May 31, 12:40 UTCMay 31, 16:25 UTC3h 45m
2026-05-30 KEM831 JNB → CPT May 30, 06:40 UTCMay 30, 06:55 UTC15m
2026-05-30 KEM831 JNB → CPT May 30, 05:15 UTCMay 30, 05:35 UTC20m
2026-05-28 KEM992 HDS → CPT May 28, 07:35 UTCMay 28, 13:00 UTC5h 25m
2026-05-27 KEM834 JNB → CPT May 27, 07:50 UTCMay 27, 09:50 UTC2h 0m
2026-05-26 KEM831 JNB → CPT May 26, 05:15 UTCMay 26, 06:49 UTC1h 35m
2026-05-25 KEM842 JNB → CPT May 25, 14:05 UTCMay 25, 14:30 UTC25m
2026-05-25 KEM842 JNB → CPT May 25, 12:30 UTCMay 25, 12:45 UTC15m
2026-05-25 KEM839 CPT → JNB May 25, 11:20 UTCMay 25, 11:45 UTC25m
2026-05-25 KEM839 CPT → JNB May 25, 09:55 UTCMay 25, 10:15 UTC20m
2026-05-25 KEM834 JNB → CPT May 25, 07:10 UTCMay 25, 09:00 UTC1h 50m
2026-05-25 KEM831 JNB → CPT May 25, 04:50 UTCMay 25, 06:25 UTC1h 35m
2026-05-24 KEM840 JNB → CPT May 24, 16:15 UTCMay 24, 18:10 UTC1h 55m
2026-05-24 KEM831 JNB → CPT May 24, 06:05 UTCMay 24, 07:40 UTC1h 35m
2026-05-23 KEM992 HDS → CPT May 23, 10:40 UTCMay 23, 12:40 UTC2h 0m
2026-05-23 KEM991 CPT → HDS May 23, 07:35 UTCMay 23, 09:20 UTC1h 45m
2026-05-22 KEM838 JNB → CPT May 22, 13:50 UTCMay 22, 14:20 UTC30m
2026-05-22 KEM838 JNB → CPT May 22, 12:25 UTCMay 22, 12:45 UTC20m
2026-05-20 KEM707 - May 20, 15:50 UTCMay 20, 16:20 UTC30m
2026-05-17 TM306 - May 17, 17:50 UTCMay 17, 18:10 UTC20m

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

Mode-S 008431 frequently asked

What is Mode-S code 008431?
008431 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-CMM.
Where is Mode-S 008431 registered?
Mode-S code 008431 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 008431 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 008431, octal 00102061, decimal 33,841.
What flights does 008431 operate?
Mode-S 008431 has broadcast 20 distinct callsigns, including KEM904, KEM831, KEM834, KEM450, KEM211.