Apparatus

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sensors Mode-S transponder

507C43

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK-32020 · AIRBUS A-320

Hex
507C43
Octal
24076103
Decimal
5,274,691
Country
UZ
Tail
UK-32020
Type
A320
No current signal · last broadcast Jul 25, 11:15 UTC
Flights observed
135
Distinct callsigns
20
Country
UZ
Last broadcast
Jul 25, 11:15 UTC

Last known position

Most recent position reported by Mode-S 507C43.

Country allocation

The ICAO 24-bit address 507C43 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
UZB605 - 20 2026-07-03
UZB275 - 20 2026-07-02
UZB640 Uzbekistan Airways 10 2026-07-04
UZB639 - 9 2026-07-03
UZB709 Uzbekistan Airways 8 2026-07-20
UZB710 - 7 2026-07-20
UZB746 - 6 2026-07-21
UZB276 - 6 2026-07-01
UZB745 Uzbekistan Airways 5 2026-07-17
UZB279 Uzbekistan Airways 4 2026-06-12
UZB606 - 3 2026-06-29
UZB291 Uzbekistan Airways 3 2026-07-22
UZB282 - 3 2026-06-28
UZB281 - 3 2026-06-27
UZB274 Uzbekistan Airways 3 2026-05-10
UZB747 - 2 2026-07-25
UZB667 Uzbekistan Airways 2 2026-04-29
UZB631 Uzbekistan Airways 2 2026-06-14
UZB428 - 2 2026-06-26
UZB427 - 2 2026-06-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 UZB748 SIP → TAS Jul 25, 10:25 UTCJul 25, 11:15 UTC50m
2026-07-25 UZB747 - Jul 25, 07:35 UTCJul 25, 08:35 UTC1h 0m
2026-07-22 UZB291 TAS → ESB Jul 22, 16:25 UTCJul 23, 10:05 UTC17h 40m
2026-07-22 UZB291 TAS → ESB Jul 22, 11:10 UTCJul 23, 10:05 UTC22h 55m
2026-07-21 UZB746 - Jul 21, 08:00 UTCJul 21, 08:25 UTC25m
2026-07-20 UZB710 - Jul 20, 11:05 UTCJul 21, 06:20 UTC19h 14m
2026-07-20 UZB709 TAS → MSQ Jul 20, 06:45 UTCJul 20, 09:05 UTC2h 20m
2026-07-19 UZB646 MRV → TAS Jul 19, 20:15 UTCJul 19, 20:25 UTC10m
2026-07-18 UZB710 - Jul 18, 18:50 UTCJul 18, 20:55 UTC2h 5m
2026-07-18 UZB709 - Jul 18, 14:45 UTCJul 18, 16:45 UTC2h 0m
2026-07-17 UZB746 - Jul 17, 08:04 UTCJul 17, 08:35 UTC30m
2026-07-17 UZB745 TAS → TBS Jul 17, 05:50 UTCJul 17, 06:20 UTC30m
2026-07-09 UZB710 - Jul 9, 11:15 UTCJul 9, 13:10 UTC1h 55m
2026-07-09 UZB709 - Jul 9, 07:00 UTCJul 9, 09:00 UTC2h 0m
2026-07-04 UZB640 LED → SKD Jul 4, 13:10 UTCJul 4, 15:20 UTC2h 10m
2026-07-03 UZB639 - Jul 3, 23:20 UTCJul 4, 11:10 UTC11h 50m
2026-07-03 UZB605 - Jul 3, 10:45 UTCJul 3, 20:55 UTC10h 10m
2026-07-02 UZB275 - Jul 2, 22:20 UTCJul 3, 08:50 UTC10h 30m
2026-07-02 UZB3232 - Jul 2, 10:25 UTCJul 2, 20:20 UTC9h 55m
2026-07-01 UZB3231 - Jul 1, 22:25 UTCJul 2, 08:45 UTC10h 20m
2026-07-01 UZB276 - Jul 1, 11:00 UTCJul 1, 20:20 UTC9h 20m
2026-06-30 UZB275 - Jun 30, 22:10 UTCJul 1, 08:40 UTC10h 30m
2026-06-30 UZB640 LED → SKD Jun 30, 10:35 UTCJun 30, 20:20 UTC9h 45m
2026-06-29 UZB606 - Jun 29, 23:05 UTCJun 30, 09:00 UTC9h 56m
2026-06-29 UZB276 - Jun 29, 10:55 UTCJun 29, 20:09 UTC9h 15m
2026-06-28 UZB275 - Jun 28, 22:45 UTCJun 29, 08:54 UTC10h 10m
2026-06-28 UZB282 - Jun 28, 03:35 UTCJun 28, 20:14 UTC16h 40m
2026-06-27 UZB281 - Jun 27, 10:34 UTCJun 28, 01:29 UTC14h 55m
2026-06-27 UZB747 - Jun 27, 07:55 UTCJun 27, 08:49 UTC55m
2026-06-26 UZB428 - Jun 26, 00:30 UTCJun 26, 02:24 UTC1h 55m
2026-06-25 UZB427 - Jun 25, 05:00 UTCJun 25, 22:45 UTC17h 45m
2026-06-23 UZB746 - Jun 23, 08:35 UTCJun 23, 09:05 UTC30m
2026-06-23 UZB745 - Jun 23, 05:54 UTCJun 23, 06:29 UTC35m
2026-06-18 UZB710 MSQ → TAS Jun 18, 12:25 UTCJun 18, 13:45 UTC1h 20m
2026-06-18 UZB709 - Jun 18, 07:05 UTCJun 18, 09:10 UTC2h 5m
2026-06-16 UZB282 - Jun 16, 05:00 UTCJun 16, 07:05 UTC2h 5m
2026-06-16 UZB281 - Jun 16, 00:40 UTCJun 16, 03:05 UTC2h 25m
2026-06-14 UZB632 LED → TAS Jun 14, 20:45 UTCJun 14, 22:45 UTC2h 0m
2026-06-14 UZB631 TAS → LED Jun 14, 18:40 UTCJun 14, 18:55 UTC15m
2026-06-14 UZB631 TAS → LED Jun 14, 16:35 UTCJun 14, 17:50 UTC1h 15m
2026-06-12 UZB280 IST → UGC Jun 12, 10:30 UTCJun 12, 12:35 UTC2h 5m
2026-06-12 UZB279 UGC → IST Jun 12, 06:05 UTCJun 12, 08:35 UTC2h 30m
2026-06-08 UZB282 IST → TAS Jun 8, 03:40 UTCJun 8, 05:40 UTC2h 0m
2026-06-07 UZB281 TAS → IST Jun 7, 08:05 UTCJun 8, 02:05 UTC18h 0m
2026-06-06 UZB640 LED → SKD Jun 6, 11:30 UTCJun 7, 06:15 UTC18h 45m
2026-06-06 UZB606 DME → SKD Jun 6, 00:15 UTCJun 6, 09:55 UTC9h 40m
2026-06-05 UZB276 IST → SKD Jun 5, 11:05 UTCJun 5, 21:40 UTC10h 35m
2026-06-04 UZB275 SKD → IST Jun 4, 22:30 UTCJun 5, 08:55 UTC10h 25m
2026-06-04 UZB3232 - Jun 4, 10:45 UTCJun 4, 20:20 UTC9h 35m
2026-06-03 UZB3231 - Jun 3, 22:15 UTCJun 4, 08:20 UTC10h 5m

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 UK-32020 page for operator, model, and routing details .

Mode-S 507C43 frequently asked

What is Mode-S code 507C43?
507C43 is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK-32020.
Where is Mode-S 507C43 registered?
Mode-S code 507C43 is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507C43 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 11:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507C43, octal 24076103, decimal 5,274,691.
What flights does 507C43 operate?
Mode-S 507C43 has broadcast 20 distinct callsigns, including UZB605, UZB275, UZB640, UZB639, UZB709.