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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 Jul 26, 07:55 UTC
Flights observed
209
Distinct callsigns
20
Country
UZ
Last broadcast
Jul 26, 07:55 UTC

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 - 34 2026-07-19
MFX5539 - 26 2026-07-19
MFX5537 - 26 2026-07-22
MFX5540 - 22 2026-07-20
MFX434 - 15 2026-07-20
MFX5536 - 12 2026-05-25
MFX550 - 10 2026-07-17
MFX529 - 10 2026-07-25
MFX5535 - 8 2026-04-28
MFX549 - 8 2026-07-17
MFX433 - 7 2026-06-22
MFX530 - 6 2026-06-11
MFX221 - 6 2026-07-02
MFX222 - 4 2026-05-29
MFX446 - 3 2026-05-11
MFX421 - 3 2026-06-19
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
2026-07-25 MFX529 - Jul 25, 21:30 UTCJul 26, 07:55 UTC10h 26m
2026-07-23 MFX529 - Jul 23, 20:45 UTCJul 24, 07:35 UTC10h 50m
2026-07-23 MFX529 - Jul 23, 07:25 UTCJul 24, 06:45 UTC23h 20m
2026-07-22 MFX5537 - Jul 22, 19:20 UTCJul 23, 06:50 UTC11h 30m
2026-07-20 MFX434 - Jul 20, 20:40 UTCJul 21, 10:30 UTC13h 50m
2026-07-20 MFX5540 - Jul 20, 04:10 UTCJul 20, 21:50 UTC17h 40m
2026-07-19 MFX5540 - Jul 19, 22:50 UTCJul 20, 21:50 UTC23h 0m
2026-07-19 MFX5540 - Jul 19, 20:50 UTCJul 20, 20:45 UTC23h 55m
2026-07-19 MFX5539 - Jul 19, 19:50 UTCJul 20, 07:55 UTC12h 5m
2026-07-19 MFX5539 - Jul 19, 08:50 UTCJul 20, 07:55 UTC23h 5m
2026-07-19 MFX5539 - Jul 19, 06:50 UTCJul 20, 06:20 UTC23h 30m
2026-07-19 MFX5538 - Jul 19, 05:30 UTCJul 20, 04:45 UTC23h 15m
2026-07-18 MFX5537 - Jul 18, 20:50 UTCJul 19, 20:45 UTC23h 55m
2026-07-18 MFX5537 - Jul 18, 20:25 UTCJul 19, 09:15 UTC12h 50m
2026-07-18 MFX5537 - Jul 18, 13:35 UTCJul 19, 09:15 UTC19h 40m
2026-07-17 MFX226 - Jul 17, 21:20 UTCJul 18, 20:45 UTC23h 26m
2026-07-17 MFX225 - Jul 17, 06:05 UTCJul 17, 19:30 UTC13h 25m
2026-07-17 MFX550 - Jul 17, 04:49 UTCJul 17, 05:15 UTC25m
2026-07-17 MFX549 - Jul 17, 01:25 UTCJul 17, 01:49 UTC25m
2026-07-16 MFX5538 - Jul 16, 04:50 UTCJul 17, 00:35 UTC19h 45m
2026-07-16 MFX5538 - Jul 16, 04:35 UTCJul 17, 00:35 UTC20h 0m
2026-07-15 MFX5537 - Jul 15, 19:50 UTCJul 16, 08:10 UTC12h 20m
2026-07-13 MFX434 - Jul 13, 20:50 UTCJul 14, 10:25 UTC13h 35m
2026-07-13 MFX5540 - Jul 13, 04:05 UTCJul 13, 22:00 UTC17h 55m
2026-07-12 MFX5540 - Jul 12, 22:50 UTCJul 13, 22:00 UTC23h 10m
2026-07-12 MFX5539 - Jul 12, 20:10 UTCJul 13, 07:40 UTC11h 30m
2026-07-12 MFX5539 - Jul 12, 06:50 UTCJul 13, 06:45 UTC23h 55m
2026-07-12 MFX5539 - Jul 12, 05:01 UTCJul 13, 04:45 UTC23h 45m
2026-07-11 MFX5538 - Jul 11, 22:50 UTCJul 12, 22:45 UTC23h 55m
2026-07-11 MFX5537 - Jul 11, 13:00 UTCJul 12, 08:40 UTC19h 40m
2026-07-11 MFX5537 - Jul 11, 08:15 UTCJul 12, 06:45 UTC22h 30m
2026-07-10 MFX550 - Jul 10, 05:40 UTCJul 10, 06:05 UTC25m
2026-07-10 MFX550 - Jul 10, 04:30 UTCJul 10, 04:50 UTC20m
2026-07-10 MFX549 - Jul 10, 01:35 UTCJul 10, 01:55 UTC20m
2026-07-10 MFX549 - Jul 10, 00:15 UTCJul 10, 00:35 UTC20m
2026-07-07 MFX5539 - Jul 7, 19:20 UTCJul 8, 07:00 UTC11h 40m
2026-07-07 MFX5539 - Jul 7, 08:55 UTCJul 8, 07:00 UTC22h 5m
2026-07-06 MFX434 - Jul 6, 20:55 UTCJul 7, 20:20 UTC23h 25m
2026-07-06 MFX5540 - Jul 6, 04:10 UTCJul 6, 22:05 UTC17h 55m
2026-07-05 MFX5540 - Jul 5, 22:50 UTCJul 6, 22:05 UTC23h 15m
2026-07-05 MFX5539 - Jul 5, 19:50 UTCJul 6, 07:35 UTC11h 45m
2026-07-05 MFX5539 - Jul 5, 08:50 UTCJul 6, 07:35 UTC22h 45m
2026-07-05 MFX5539 - Jul 5, 06:55 UTCJul 6, 06:45 UTC23h 50m
2026-07-05 MFX5538 - Jul 5, 04:50 UTCJul 6, 04:45 UTC23h 55m
2026-07-05 MFX5538 - Jul 5, 04:40 UTCJul 5, 23:55 UTC19h 15m
2026-07-05 MFX5538 - Jul 5, 00:50 UTCJul 5, 23:55 UTC23h 5m
2026-07-04 MFX5538 - Jul 4, 22:50 UTCJul 5, 22:45 UTC23h 55m
2026-07-04 MFX5538 - Jul 4, 20:50 UTCJul 5, 20:45 UTC23h 55m
2026-07-04 MFX5537 - Jul 4, 20:15 UTCJul 5, 09:30 UTC13h 15m
2026-07-04 MFX5537 - Jul 4, 14:00 UTCJul 5, 09:30 UTC19h 30m

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 Jul 26, 07:55 UTC.
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, MFX5539, MFX5537, MFX5540, MFX434.