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 18d ago
Flights observed
312
Distinct callsigns
20
Country
ZA
Last broadcast
18d 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
SFR821 - 7 2026-07-18
SFR839 - 6 2026-07-14
SFR838 - 6 2026-07-14
SFR216 - 6 2026-07-16
SFR625 Safair 5 2026-07-26
SFR624 Safair 5 2026-07-26
SFR601 - 5 2026-07-06
SFR600 Safair 5 2026-07-06
SFR592 Safair 5 2026-07-24
SFR283 - 5 2026-07-19
SFR269 - 5 2026-07-17
SFR212 Safair 5 2026-07-19
SFR177 - 5 2026-07-06
SFR829 Safair 4 2026-05-09
SFR828 Safair 4 2026-07-24
SFR672 - 4 2026-06-26
SFR453 - 4 2026-07-14
SFR233 - 4 2026-07-08
SFR232 - 4 2026-07-08
SFR217 - 4 2026-07-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SFR625 CPT → JNB Jul 26, 19:10 UTCJul 26, 20:45 UTC1h 35m
2026-07-26 SFR624 JNB → CPT Jul 26, 16:15 UTCJul 26, 18:10 UTC1h 55m
2026-07-26 SFR650 JNB → GRJ Jul 26, 11:00 UTCJul 26, 14:45 UTC3h 45m
2026-07-26 SFR632 JNB → PLZ Jul 26, 06:15 UTCJul 26, 09:45 UTC3h 31m
2026-07-25 SFR820 JNB → ZNZ Jul 25, 07:15 UTCJul 25, 15:05 UTC7h 50m
2026-07-24 SFR828 JNB → HRE Jul 24, 14:50 UTCJul 24, 18:45 UTC3h 55m
2026-07-24 SFR593 CPT → JNB Jul 24, 10:50 UTCJul 24, 12:35 UTC1h 45m
2026-07-24 SFR592 JNB → CPT Jul 24, 08:00 UTCJul 24, 09:55 UTC1h 55m
2026-07-24 SFR591 DUR → JNB Jul 24, 06:40 UTCJul 24, 06:55 UTC15m
2026-07-24 SFR590 JNB → DUR Jul 24, 04:25 UTCJul 24, 04:40 UTC15m
2026-07-23 SFR390 JNB → DUR Jul 23, 15:50 UTCJul 23, 16:00 UTC10m
2026-07-22 SFR124 CPT → JNB Jul 22, 15:45 UTCJul 22, 17:30 UTC1h 45m
2026-07-21 SFR820 JNB → ZNZ Jul 21, 07:10 UTCJul 21, 14:55 UTC7h 45m
2026-07-20 SFR289 - Jul 20, 15:05 UTCJul 20, 17:25 UTC2h 20m
2026-07-20 SFR221 - Jul 20, 09:45 UTCJul 20, 13:45 UTC4h 0m
2026-07-20 SFR370 JNB → JNB Jul 20, 04:35 UTCJul 20, 08:00 UTC3h 25m
2026-07-19 SFR239 PLZ → JNB Jul 19, 16:40 UTCJul 19, 20:10 UTC3h 30m
2026-07-19 SFR213 CPT → JNB Jul 19, 13:45 UTCJul 19, 15:20 UTC1h 35m
2026-07-19 SFR212 JNB → CPT Jul 19, 10:25 UTCJul 19, 12:35 UTC2h 10m
2026-07-19 SFR283 - Jul 19, 06:20 UTCJul 19, 08:55 UTC2h 35m
2026-07-18 SFR821 - Jul 18, 07:20 UTCJul 18, 15:20 UTC8h 0m
2026-07-17 SFR269 - Jul 17, 16:55 UTCJul 17, 19:20 UTC2h 25m
2026-07-17 SFR207 - Jul 17, 14:04 UTCJul 17, 15:44 UTC1h 40m
2026-07-17 SFR206 - Jul 17, 11:10 UTCJul 17, 13:10 UTC2h 0m
2026-07-17 SFR605 - Jul 17, 07:44 UTCJul 17, 09:25 UTC1h 40m
2026-07-17 SFR604 - Jul 17, 04:49 UTCJul 17, 06:45 UTC1h 55m
2026-07-16 SFR217 - Jul 16, 16:55 UTCJul 16, 18:34 UTC1h 40m
2026-07-16 SFR216 - Jul 16, 14:05 UTCJul 16, 16:00 UTC1h 55m
2026-07-16 SFR265 - Jul 16, 10:25 UTCJul 16, 12:55 UTC2h 30m
2026-07-16 SFR201 - Jul 16, 07:00 UTCJul 16, 08:40 UTC1h 40m
2026-07-16 SFR200 - Jul 16, 04:05 UTCJul 16, 06:00 UTC1h 55m
2026-07-15 SFR391 - Jul 15, 16:05 UTCJul 15, 18:30 UTC2h 25m
2026-07-15 SFR374 - Jul 15, 11:25 UTCJul 15, 14:55 UTC3h 30m
2026-07-15 SFR299 - Jul 15, 08:25 UTCJul 15, 10:05 UTC1h 40m
2026-07-15 SFR298 JNB → CPT Jul 15, 05:30 UTCJul 15, 07:30 UTC2h 0m
2026-07-14 SFR839 - Jul 14, 18:05 UTCJul 14, 18:20 UTC15m
2026-07-14 SFR838 - Jul 14, 16:15 UTCJul 14, 16:30 UTC15m
2026-07-14 SFR378 - Jul 14, 12:00 UTCJul 14, 15:10 UTC3h 10m
2026-07-14 SFR453 - Jul 14, 08:25 UTCJul 14, 10:55 UTC2h 30m
2026-07-13 SFR289 - Jul 13, 16:20 UTCJul 13, 18:45 UTC2h 25m
2026-07-13 SFR221 - Jul 13, 14:50 UTCJul 13, 15:05 UTC15m
2026-07-13 SFR220 - Jul 13, 11:25 UTCJul 13, 11:40 UTC15m
2026-07-13 SFR370 - Jul 13, 04:35 UTCJul 13, 10:10 UTC5h 35m
2026-07-12 SFR625 CPT → JNB Jul 12, 19:05 UTCJul 12, 20:40 UTC1h 35m
2026-07-12 SFR624 - Jul 12, 16:15 UTCJul 12, 18:15 UTC2h 0m
2026-07-12 SFR213 - Jul 12, 13:15 UTCJul 12, 14:50 UTC1h 35m
2026-07-12 SFR212 - Jul 12, 12:01 UTCJul 12, 12:20 UTC20m
2026-07-12 SFR212 - Jul 12, 10:30 UTCJul 12, 10:50 UTC20m
2026-07-12 SFR283 - Jul 12, 06:25 UTCJul 12, 08:55 UTC2h 30m
2026-07-11 SFR821 - Jul 11, 07:10 UTCJul 11, 15:10 UTC8h 0m

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 18d 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 SFR821, SFR839, SFR838, SFR216, SFR625.