Apparatus

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sensors Mode-S transponder

00C45F

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-ZWO · BOEING 737-800

Hex
00C45F
Octal
00142137
Decimal
50,271
Country
ZA
Tail
ZS-ZWO
Type
B738
No current signal · last broadcast 8h ago
Flights observed
134
Distinct callsigns
20
Country
ZA
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S 00C45F.

Country allocation

The ICAO 24-bit address 00C45F 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
SFR829 Safair 4 2026-05-09
SFR592 Safair 4 2026-05-01
SFR828 Safair 3 2026-05-01
SFR474 Safair 3 2026-05-26
SFR277 Safair 3 2026-05-15
SFR269 Safair 3 2026-05-28
SFR233 Safair 3 2026-04-16
SFR214 Safair 3 2026-05-20
SFR847 Safair 2 2026-05-15
SFR846 Safair 2 2026-05-15
SFR839 Safair 2 2026-05-19
SFR838 Safair 2 2026-05-19
SFR821 Safair 2 2026-04-25
SFR664 Safair 2 2026-04-26
SFR651 Safair 2 2026-05-22
SFR633 Safair 2 2026-05-22
SFR625 Safair 2 2026-05-22
SFR624 Safair 2 2026-05-22
SFR603 Safair 2 2026-05-15
SFR602 Safair 2 2026-05-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 SFR115 JNB → CPT May 29, 20:40 UTCMay 29, 21:00 UTC20m
2026-05-29 SFR115 JNB → CPT May 29, 19:05 UTCMay 29, 19:25 UTC20m
2026-05-29 SFR249 ELS → JNB May 29, 14:15 UTCMay 29, 17:35 UTC3h 20m
2026-05-28 SFR269 DUR → JNB May 28, 16:00 UTCMay 28, 18:30 UTC2h 30m
2026-05-27 SFR383 ELS → JNB May 27, 13:20 UTCMay 27, 16:30 UTC3h 10m
2026-05-26 SFR279 DUR → JNB May 26, 17:30 UTCMay 26, 19:50 UTC2h 20m
2026-05-26 SFR120 CPT → JNB May 26, 14:45 UTCMay 26, 16:20 UTC1h 35m
2026-05-26 SFR121 JNB → CPT May 26, 11:54 UTCMay 26, 14:00 UTC2h 5m
2026-05-26 SFR474 HLA → DUR May 26, 07:49 UTCMay 26, 10:25 UTC2h 35m
2026-05-26 SFR474 HLA → DUR May 26, 04:15 UTCMay 26, 06:49 UTC2h 35m
2026-05-25 FA278 JNB → DUR May 25, 17:10 UTCMay 25, 19:35 UTC2h 25m
2026-05-25 FA120 CPT → JNB May 25, 14:35 UTCMay 25, 16:10 UTC1h 35m
2026-05-25 FA121 JNB → CPT May 25, 13:20 UTCMay 25, 13:35 UTC15m
2026-05-25 FA121 JNB → CPT May 25, 11:40 UTCMay 25, 12:00 UTC20m
2026-05-25 SFR474 HLA → DUR May 25, 07:50 UTCMay 25, 10:25 UTC2h 35m
2026-05-25 SFR473 DUR → HLA May 25, 04:10 UTCMay 25, 06:45 UTC2h 35m
2026-05-24 SFR227 GRJ → JNB May 24, 14:50 UTCMay 24, 18:40 UTC3h 50m
2026-05-24 SFR673 MQP → JNB May 24, 11:45 UTCMay 24, 12:05 UTC20m
2026-05-24 SFR672 JNB → MQP May 24, 10:00 UTCMay 24, 10:25 UTC25m
2026-05-22 SFR625 CPT → JNB May 22, 19:15 UTCMay 22, 20:50 UTC1h 35m
2026-05-22 SFR624 JNB → CPT May 22, 16:10 UTCMay 22, 18:00 UTC1h 50m
2026-05-22 SFR651 GRJ → JNB May 22, 11:00 UTCMay 22, 14:50 UTC3h 50m
2026-05-22 SFR633 PLZ → JNB May 22, 06:20 UTCMay 22, 09:50 UTC3h 30m
2026-05-21 SFR513 CPT → JNB May 21, 13:55 UTCMay 21, 15:30 UTC1h 35m
2026-05-21 SFR512 JNB → CPT May 21, 11:05 UTCMay 21, 13:05 UTC2h 0m
2026-05-20 SFR215 CPT → JNB May 20, 17:25 UTCMay 20, 19:05 UTC1h 40m
2026-05-20 SFR214 JNB → CPT May 20, 14:40 UTCMay 20, 16:40 UTC2h 0m
2026-05-20 SFR258 JNB → GRJ May 20, 05:45 UTCMay 20, 09:45 UTC4h 0m
2026-05-19 SFR839 BFN → JNB May 19, 18:10 UTCMay 19, 18:25 UTC15m
2026-05-19 SFR838 JNB → BFN May 19, 16:15 UTCMay 19, 16:30 UTC15m
2026-05-18 SFR176 CPT → DUR May 18, 15:50 UTCMay 18, 19:20 UTC3h 29m
2026-05-18 SFR600 JNB → CPT May 18, 13:05 UTCMay 18, 14:55 UTC1h 50m
2026-05-18 SFR601 CPT → JNB May 18, 10:15 UTCMay 18, 12:00 UTC1h 45m
2026-05-18 SFR177 DUR → CPT May 18, 05:35 UTCMay 18, 09:15 UTC3h 40m
2026-05-17 SFR803 CPT → JNB May 17, 17:20 UTCMay 17, 19:01 UTC1h 40m
2026-05-17 SFR802 JNB → CPT May 17, 14:25 UTCMay 17, 16:20 UTC1h 55m
2026-05-17 SFR257 GRJ → HLA May 17, 09:25 UTCMay 17, 13:20 UTC3h 55m
2026-05-16 SFR219 CPT → JNB May 16, 19:10 UTCMay 16, 19:25 UTC15m
2026-05-16 SFR219 CPT → JNB May 16, 17:50 UTCMay 16, 18:10 UTC20m
2026-05-16 SFR218 JNB → CPT May 16, 14:55 UTCMay 16, 16:45 UTC1h 50m
2026-05-15 SFR603 CPT → JNB May 15, 18:45 UTCMay 15, 20:25 UTC1h 40m
2026-05-15 SFR602 JNB → CPT May 15, 15:55 UTCMay 15, 17:55 UTC2h 0m
2026-05-15 SFR847 BFN → JNB May 15, 14:35 UTCMay 15, 14:50 UTC14m
2026-05-15 SFR846 JNB → BFN May 15, 12:40 UTCMay 15, 12:55 UTC15m
2026-05-15 SFR665 DUR → JNB May 15, 09:10 UTCMay 15, 11:35 UTC2h 25m
2026-05-15 SFR277 DUR → JNB May 15, 05:30 UTCMay 15, 08:00 UTC2h 30m
2026-05-14 SFR269 DUR → JNB May 14, 16:05 UTCMay 14, 18:40 UTC2h 35m
2026-05-14 SFR452 JNB → DUR May 14, 08:30 UTCMay 14, 11:01 UTC2h 30m
2026-05-14 SFR100 CPT → JNB May 14, 04:00 UTCMay 14, 05:40 UTC1h 40m
2026-05-13 SFR661 JNB → DUR May 13, 10:10 UTCMay 13, 13:55 UTC3h 45m

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

Mode-S 00C45F frequently asked

What is Mode-S code 00C45F?
00C45F is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-ZWO.
Where is Mode-S 00C45F registered?
Mode-S code 00C45F 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 00C45F broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 00C45F, octal 00142137, decimal 50,271.
What flights does 00C45F operate?
Mode-S 00C45F has broadcast 20 distinct callsigns, including SFR829, SFR592, SFR828, SFR474, SFR277.