sensors Mode-S transponder

507CB0

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK75007 · BOEING 757-300

Hex
507CB0
Octal
24076260
Decimal
5,274,800
Country
UZ
Tail
UK75007
Type
B753
No current signal · last broadcast 14h ago
Flights observed
8
Distinct callsigns
5
Country
UZ
Last broadcast
14h ago

Last known position

Most recent position reported by Mode-S 507CB0.

Country allocation

The ICAO 24-bit address 507CB0 falls within the block assigned to Uzbekistan (UZ) by ICAO Annex 10, Volume III. Every aircraft registered in Uzbekistan 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 5 distinct

Callsign Airline Flights Last seen
FKH7105 - 3 2026-04-13
FKH7103 - 2 2026-04-13
FKH7106 - 1 2026-04-13
FKH7101 - 1 2026-04-14
FKH5502 - 1 2026-04-12

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 FKH7101 - Apr 14, 10:30 UTCApr 14, 11:05 UTC35m
2026-04-13 FKH7103 - Apr 13, 20:10 UTCApr 13, 21:25 UTC1h 15m
2026-04-13 FKH7103 - Apr 13, 18:35 UTCApr 13, 20:10 UTC1h 35m
2026-04-13 FKH7106 - Apr 13, 09:30 UTCApr 13, 10:20 UTC50m
2026-04-13 FKH7105 - Apr 13, 04:20 UTCApr 13, 05:15 UTC55m
2026-04-13 FKH7105 - Apr 13, 04:00 UTCApr 13, 05:15 UTC1h 15m
2026-04-13 FKH7105 - Apr 13, 02:25 UTCApr 13, 04:15 UTC1h 50m
2026-04-12 FKH5502 - Apr 12, 17:55 UTCApr 12, 20:15 UTC2h 20m

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 UK75007 page for operator, model, and routing details .

Mode-S 507CB0 frequently asked

What is Mode-S code 507CB0?
507CB0 is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK75007.
Where is Mode-S 507CB0 registered?
Mode-S code 507CB0 is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507CB0 broadcasting right now?
No active broadcast right now. Last signal was 14h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507CB0, octal 24076260, decimal 5,274,800.
What flights does 507CB0 operate?
Mode-S 507CB0 has broadcast 5 distinct callsigns, including FKH7105, FKH7103, FKH7106, FKH7101, FKH5502.