sensors Mode-S transponder

507CB3

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK32132 · AIRBUS A-321neo

Hex
507CB3
Octal
24076263
Decimal
5,274,803
Country
UZ
Tail
UK32132
Type
A21N
No current signal · last broadcast 6h ago
Flights observed
94
Distinct callsigns
20
Country
UZ
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S 507CB3.

Country allocation

The ICAO 24-bit address 507CB3 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 20 distinct

Callsign Airline Flights Last seen
MFX5538 - 19 2026-05-24
MFX5536 - 12 2026-05-25
MFX5535 - 8 2026-04-28
MFX434 - 8 2026-05-12
MFX550 - 6 2026-05-29
MFX549 - 4 2026-05-29
MFX530 - 4 2026-05-14
MFX433 - 4 2026-05-25
MFX222 - 4 2026-05-29
MFX221 - 4 2026-05-07
MFX5540 - 3 2026-05-26
MFX5539 - 3 2026-05-25
MFX446 - 3 2026-05-11
MFX5537 - 2 2026-05-20
MFX529 - 2 2026-05-16
MFX421 - 2 2026-05-23
MFX404 My Freighter LLC 2 2026-04-26
MFX512 - 1 2026-04-15
MFX456 - 1 2026-05-28
MFX445 - 1 2026-05-01

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 MFX222 - May 29, 22:05 UTCMay 29, 22:35 UTC30m
2026-05-29 MFX550 ICN → TBS May 29, 04:25 UTCMay 29, 20:30 UTC16h 5m
2026-05-29 MFX549 - May 29, 01:05 UTCMay 29, 01:25 UTC20m
2026-05-28 MFX456 - May 28, 07:55 UTCMay 29, 00:20 UTC16h 25m
2026-05-26 MFX5540 - May 26, 19:20 UTCMay 27, 07:30 UTC12h 11m
2026-05-26 MFX5540 - May 26, 10:50 UTCMay 27, 07:30 UTC20h 41m
2026-05-26 MFX5540 - May 26, 09:45 UTCMay 27, 07:30 UTC21h 46m
2026-05-25 MFX5539 - May 25, 20:50 UTCMay 26, 20:45 UTC23h 55m
2026-05-25 MFX433 - May 25, 10:50 UTCMay 26, 10:44 UTC23h 55m
2026-05-25 MFX5536 - May 25, 06:30 UTCMay 25, 22:10 UTC15h 40m
2026-05-24 MFX5536 - May 24, 19:15 UTCMay 25, 11:00 UTC15h 45m
2026-05-24 MFX5539 - May 24, 08:55 UTCMay 25, 08:45 UTC23h 50m
2026-05-24 MFX5539 - May 24, 06:50 UTCMay 25, 06:45 UTC23h 55m
2026-05-24 MFX5538 - May 24, 04:30 UTCMay 24, 21:40 UTC17h 10m
2026-05-24 MFX5538 - May 24, 00:50 UTCMay 24, 21:40 UTC20h 50m
2026-05-23 MFX5538 - May 23, 23:20 UTCMay 24, 21:40 UTC22h 20m
2026-05-23 MFX5538 - May 23, 20:50 UTCMay 24, 20:45 UTC23h 55m
2026-05-23 MFX5538 - May 23, 20:30 UTCMay 24, 08:55 UTC12h 25m
2026-05-23 MFX5538 - May 23, 12:50 UTCMay 24, 08:55 UTC20h 6m
2026-05-23 MFX5538 - May 23, 12:30 UTCMay 24, 08:55 UTC20h 25m
2026-05-23 MFX421 - May 23, 08:15 UTCMay 23, 08:30 UTC15m
2026-05-22 MFX550 - May 22, 04:35 UTCMay 22, 05:00 UTC25m
2026-05-22 MFX549 - May 22, 01:10 UTCMay 22, 01:25 UTC15m
2026-05-21 MFX5538 - May 21, 04:50 UTCMay 22, 00:20 UTC19h 30m
2026-05-21 MFX5538 - May 21, 04:00 UTCMay 22, 00:20 UTC20h 20m
2026-05-20 MFX5537 - May 20, 19:30 UTCMay 21, 07:50 UTC12h 20m
2026-05-19 MFX433 - May 19, 00:45 UTCMay 19, 14:30 UTC13h 45m
2026-05-18 MFX433 - May 18, 07:35 UTCMay 19, 02:00 UTC18h 24m
2026-05-16 MFX529 - May 16, 21:40 UTCMay 17, 08:40 UTC11h 0m
2026-05-16 MFX529 - May 16, 10:01 UTCMay 17, 08:40 UTC22h 40m
2026-05-14 MFX530 - May 14, 12:50 UTCMay 15, 07:45 UTC18h 55m
2026-05-14 MFX5538 - May 14, 10:50 UTCMay 15, 07:45 UTC20h 55m
2026-05-14 MFX5538 - May 14, 10:15 UTCMay 15, 07:45 UTC21h 30m
2026-05-14 MFX5538 - May 14, 02:50 UTCMay 14, 22:20 UTC19h 30m
2026-05-14 MFX5538 - May 14, 01:25 UTCMay 14, 22:20 UTC20h 55m
2026-05-12 MFX434 - May 12, 10:25 UTCMay 12, 23:45 UTC13h 20m
2026-05-11 MFX434 - May 11, 21:35 UTCMay 12, 11:30 UTC13h 55m
2026-05-11 MFX446 - May 11, 11:15 UTCMay 12, 10:35 UTC23h 21m
2026-05-11 MFX446 - May 11, 07:20 UTCMay 11, 22:00 UTC14h 40m
2026-05-09 MFX530 - May 9, 13:20 UTCMay 10, 08:20 UTC19h 0m
2026-05-07 MFX530 - May 7, 12:50 UTCMay 8, 07:50 UTC19h 0m
2026-05-07 MFX530 - May 7, 12:35 UTCMay 8, 07:50 UTC19h 15m
2026-05-07 MFX221 - May 7, 09:20 UTCMay 7, 09:40 UTC20m
2026-05-04 MFX434 - May 4, 20:45 UTCMay 5, 10:40 UTC13h 55m
2026-05-04 MFX434 - May 4, 13:55 UTCMay 5, 10:40 UTC20h 46m
2026-05-04 MFX401 TAS → SVO May 4, 08:25 UTCMay 4, 09:00 UTC35m
2026-05-02 MFX5537 - May 2, 14:15 UTCMay 3, 08:45 UTC18h 29m
2026-05-01 MFX446 - May 1, 19:20 UTCMay 2, 14:20 UTC19h 1m
2026-05-01 MFX445 - May 1, 16:05 UTCMay 2, 14:20 UTC22h 15m
2026-05-01 MFX550 - May 1, 04:30 UTCMay 1, 19:45 UTC15h 15m

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 UK32132 page for operator, model, and routing details .

Mode-S 507CB3 frequently asked

What is Mode-S code 507CB3?
507CB3 is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK32132.
Where is Mode-S 507CB3 registered?
Mode-S code 507CB3 is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507CB3 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507CB3, octal 24076263, decimal 5,274,803.
What flights does 507CB3 operate?
Mode-S 507CB3 has broadcast 20 distinct callsigns, including MFX5538, MFX5536, MFX5535, MFX434, MFX550.