sensors Mode-S transponder

008187

ICAO 24-bit transponder address · allocated to South Africa

Currently assigned to ZS-ZWV · BOEING 737-800

Hex
008187
Octal
00100607
Decimal
33,159
Country
ZA
Tail
ZS-ZWV
Type
B738
No current signal · last broadcast 15h ago
Flights observed
8
Distinct callsigns
7
Country
ZA
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S 008187.

Country allocation

The ICAO 24-bit address 008187 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 7 distinct

Callsign Airline Flights Last seen
SFR379 - 2 2026-04-13
SFR839 - 1 2026-04-13
SFR838 - 1 2026-04-13
SFR828 - 1 2026-04-12
SFR820 - 1 2026-04-14
SFR811 - 1 2026-04-13
SFR810 Safair 1 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 SFR820 - Apr 14, 07:10 UTCApr 14, 07:30 UTC20m
2026-04-13 SFR839 - Apr 13, 18:35 UTCApr 13, 19:00 UTC25m
2026-04-13 SFR838 - Apr 13, 16:35 UTCApr 13, 16:50 UTC15m
2026-04-13 SFR379 - Apr 13, 12:20 UTCApr 13, 15:20 UTC3h 0m
2026-04-13 SFR379 - Apr 13, 12:10 UTCApr 13, 15:20 UTC3h 10m
2026-04-13 SFR811 - Apr 13, 09:35 UTCApr 13, 10:10 UTC35m
2026-04-13 SFR810 JNB → HRE Apr 13, 06:05 UTCApr 13, 06:40 UTC35m
2026-04-12 SFR828 - Apr 12, 18:05 UTCApr 12, 18:40 UTC35m

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

Mode-S 008187 frequently asked

What is Mode-S code 008187?
008187 is an ICAO 24-bit transponder address. Allocated to South Africa. Assigned to ZS-ZWV.
Where is Mode-S 008187 registered?
Mode-S code 008187 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 008187 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 008187, octal 00100607, decimal 33,159.
What flights does 008187 operate?
Mode-S 008187 has broadcast 7 distinct callsigns, including SFR379, SFR839, SFR838, SFR828, SFR820.