Apparatus

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sensors Mode-S transponder

507C42

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK-32019 · AIRBUS A-320

Hex
507C42
Octal
24076102
Decimal
5,274,690
Country
UZ
Tail
UK-32019
Type
A320
No current signal · last broadcast 20h ago
Flights observed
99
Distinct callsigns
20
Country
UZ
Last broadcast
20h ago

Last known position

Most recent position reported by Mode-S 507C42.

Country allocation

The ICAO 24-bit address 507C42 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
UZB275 - 17 2026-06-26
UZB276 - 12 2026-06-26
UZB746 - 7 2026-07-12
UZB710 - 7 2026-07-13
UZB745 - 6 2026-07-12
UZB709 Uzbekistan Airways 4 2026-05-09
UZB304 Uzbekistan Airways 4 2026-07-07
UZB303 Uzbekistan Airways 4 2026-07-07
UZB301 Uzbekistan Airways 4 2026-06-10
UZB280 Uzbekistan Airways 4 2026-07-10
UZB279 - 4 2026-07-10
UZB640 Uzbekistan Airways 3 2026-06-15
UZB428 - 3 2026-06-12
UZB3231 - 3 2026-06-25
UZB685 Uzbekistan Airways 2 2026-06-13
UZB605 Uzbekistan Airways 2 2026-05-27
UZB427 - 2 2026-07-06
UZB302 Uzbekistan Airways 2 2026-06-11
UZB282 Uzbekistan Airways 2 2026-06-04
UZB281 Uzbekistan Airways 2 2026-06-04

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 UZB710 - Jul 13, 11:00 UTCJul 13, 11:15 UTC15m
2026-07-12 UZB746 - Jul 12, 08:10 UTCJul 12, 08:40 UTC30m
2026-07-12 UZB745 - Jul 12, 05:35 UTCJul 12, 06:05 UTC30m
2026-07-10 UZB280 IST → UGC Jul 10, 10:40 UTCJul 10, 12:35 UTC1h 55m
2026-07-10 UZB279 - Jul 10, 05:55 UTCJul 10, 08:40 UTC2h 45m
2026-07-07 UZB304 TLV → TAS Jul 7, 17:35 UTCJul 7, 19:45 UTC2h 10m
2026-07-07 UZB303 TAS → TLV Jul 7, 00:45 UTCJul 7, 15:45 UTC15h 0m
2026-07-06 UZB427 - Jul 6, 20:20 UTCJul 6, 23:00 UTC2h 40m
2026-07-05 UZB746 - Jul 5, 08:00 UTCJul 5, 08:30 UTC30m
2026-07-05 UZB745 - Jul 5, 05:35 UTCJul 5, 06:05 UTC30m
2026-07-03 UZB280 IST → UGC Jul 3, 10:40 UTCJul 3, 12:40 UTC2h 0m
2026-07-03 UZB279 - Jul 3, 05:55 UTCJul 3, 08:30 UTC2h 35m
2026-07-01 UZB668 - Jul 1, 16:45 UTCJul 1, 21:20 UTC4h 35m
2026-06-30 UZB304 TLV → TAS Jun 30, 17:30 UTCJul 1, 09:20 UTC15h 50m
2026-06-30 UZB303 TAS → TLV Jun 30, 12:55 UTCJun 30, 15:45 UTC2h 50m
2026-06-26 UZB276 - Jun 26, 12:34 UTCJun 27, 12:09 UTC23h 35m
2026-06-26 UZB276 - Jun 26, 10:55 UTCJun 26, 12:50 UTC1h 55m
2026-06-26 UZB275 - Jun 26, 06:15 UTCJun 26, 08:54 UTC2h 40m
2026-06-25 UZB275 - Jun 25, 10:35 UTCJun 26, 08:54 UTC22h 20m
2026-06-25 UZB3231 - Jun 25, 06:05 UTCJun 25, 08:55 UTC2h 50m
2026-06-24 UZB3231 - Jun 24, 12:34 UTCJun 25, 08:55 UTC20h 20m
2026-06-24 UZB3231 - Jun 24, 10:59 UTCJun 25, 08:55 UTC21h 55m
2026-06-24 UZB275 - Jun 24, 06:20 UTCJun 24, 08:49 UTC2h 30m
2026-06-23 UZB275 - Jun 23, 10:35 UTCJun 24, 08:49 UTC22h 15m
2026-06-23 UZB275 - Jun 23, 10:29 UTCJun 24, 08:30 UTC22h 0m
2026-06-22 UZB276 - Jun 22, 10:55 UTCJun 22, 12:54 UTC2h 0m
2026-06-22 UZB275 - Jun 22, 06:15 UTCJun 22, 08:54 UTC2h 40m
2026-06-21 UZB275 - Jun 21, 08:35 UTCJun 22, 08:29 UTC23h 55m
2026-06-21 UZB746 - Jun 21, 08:04 UTCJun 22, 06:29 UTC22h 25m
2026-06-21 UZB745 - Jun 21, 05:44 UTCJun 21, 06:14 UTC30m
2026-06-19 UZB280 IST → UGC Jun 19, 10:29 UTCJun 19, 12:34 UTC2h 5m
2026-06-19 UZB279 - Jun 19, 05:59 UTCJun 19, 08:40 UTC2h 40m
2026-06-17 UZB276 IST → SKD Jun 17, 12:10 UTCJun 17, 13:00 UTC50m
2026-06-17 UZB276 IST → SKD Jun 17, 11:00 UTCJun 17, 11:25 UTC25m
2026-06-17 UZB275 - Jun 17, 06:15 UTCJun 17, 08:45 UTC2h 30m
2026-06-16 UZB275 - Jun 16, 12:39 UTCJun 17, 08:45 UTC20h 6m
2026-06-16 UZB275 - Jun 16, 10:35 UTCJun 17, 08:45 UTC22h 11m
2026-06-15 UZB640 LED → SKD Jun 15, 23:35 UTCJun 16, 12:45 UTC13h 10m
2026-06-15 UZB276 IST → SKD Jun 15, 12:35 UTCJun 16, 10:45 UTC22h 10m
2026-06-15 UZB276 IST → SKD Jun 15, 10:55 UTCJun 16, 10:30 UTC23h 35m
2026-06-14 UZB275 - Jun 14, 18:55 UTCJun 15, 08:45 UTC13h 50m
2026-06-13 UZB685 TAS → AER Jun 13, 06:30 UTCJun 13, 16:50 UTC10h 20m
2026-06-12 UZB685 TAS → AER Jun 12, 15:20 UTCJun 13, 07:10 UTC15h 49m
2026-06-12 UZB428 - Jun 12, 00:40 UTCJun 12, 15:20 UTC14h 40m
2026-06-11 UZB302 TLV → TAS Jun 11, 11:00 UTCJun 11, 23:00 UTC12h 0m
2026-06-10 UZB301 TAS → TLV Jun 10, 16:25 UTCJun 11, 08:40 UTC16h 15m
2026-06-09 UZB746 TBS → TAS Jun 9, 07:55 UTCJun 9, 08:25 UTC30m
2026-06-08 UZB288 IST → AZN Jun 8, 11:05 UTCJun 9, 06:20 UTC19h 15m
2026-06-07 UZB287 AZN → IST Jun 7, 16:00 UTCJun 8, 09:05 UTC17h 5m
2026-06-07 UZB301 TAS → TLV Jun 7, 11:55 UTCJun 7, 14:40 UTC2h 45m

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-32019 page for operator, model, and routing details .

Mode-S 507C42 frequently asked

What is Mode-S code 507C42?
507C42 is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK-32019.
Where is Mode-S 507C42 registered?
Mode-S code 507C42 is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507C42 broadcasting right now?
No active broadcast right now. Last signal was 20h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507C42, octal 24076102, decimal 5,274,690.
What flights does 507C42 operate?
Mode-S 507C42 has broadcast 20 distinct callsigns, including UZB275, UZB276, UZB746, UZB710, UZB745.