Apparatus

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sensors Mode-S transponder

507C4B

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK-67007 · BOEING 767-300

Hex
507C4B
Octal
24076113
Decimal
5,274,699
Country
UZ
Tail
UK-67007
Type
B763
No current signal · last broadcast Jul 26, 20:55 UTC
Flights observed
146
Distinct callsigns
20
Country
UZ
Last broadcast
Jul 26, 20:55 UTC

Last known position

Most recent position reported by Mode-S 507C4B.

Country allocation

The ICAO 24-bit address 507C4B 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
UZB706 - 23 2026-07-18
UZB423 Uzbekistan Airways 17 2026-07-19
UZB425 Uzbekistan Airways 14 2026-07-18
UZB422 Uzbekistan Airways 13 2026-07-21
UZB705 - 11 2026-07-11
UZB424 - 11 2026-07-15
UZB421 - 11 2026-07-20
UZB426 Uzbekistan Airways 6 2026-07-26
UZB271 Uzbekistan Airways 6 2026-07-25
UZB338 - 4 2026-07-02
UZB272 Uzbekistan Airways 4 2026-07-26
UZB5340 - 3 2026-07-23
UZB337 - 3 2026-04-18
UZB746 Uzbekistan Airways 2 2026-06-12
UZB745 Uzbekistan Airways 2 2026-06-11
UZB613 Uzbekistan Airways 2 2026-06-08
UZB604 Uzbekistan Airways 2 2026-06-11
UZB603 Uzbekistan Airways 2 2026-07-24
UZB601 Uzbekistan Airways 2 2026-06-30
UZB5339 - 2 2026-07-15

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 UZB426 DEL → TAS Jul 26, 20:15 UTCJul 26, 20:55 UTC40m
2026-07-26 UZB272 IST → TAS Jul 26, 09:50 UTCJul 26, 18:40 UTC8h 50m
2026-07-25 UZB271 TAS → IST Jul 25, 14:55 UTCJul 26, 07:30 UTC16h 36m
2026-07-24 UZB603 TAS → DME Jul 24, 07:20 UTCJul 24, 07:55 UTC35m
2026-07-23 UZB5340 - Jul 23, 09:45 UTCJul 23, 21:15 UTC11h 30m
2026-07-21 UZB422 DEL → TAS Jul 21, 01:10 UTCJul 21, 02:00 UTC50m
2026-07-20 UZB421 - Jul 20, 08:40 UTCJul 20, 23:10 UTC14h 30m
2026-07-19 UZB423 TAS → DEL Jul 19, 19:20 UTCJul 20, 06:15 UTC10h 55m
2026-07-18 UZB425 TAS → DEL Jul 18, 20:50 UTCJul 19, 17:00 UTC20h 10m
2026-07-18 UZB706 - Jul 18, 19:50 UTCJul 19, 17:00 UTC21h 10m
2026-07-18 UZB706 - Jul 18, 08:15 UTCJul 19, 06:30 UTC22h 15m
2026-07-16 UZB5340 - Jul 16, 11:15 UTCJul 17, 06:25 UTC19h 10m
2026-07-16 UZB5340 - Jul 16, 09:30 UTCJul 17, 06:25 UTC20h 55m
2026-07-15 UZB5339 - Jul 15, 16:50 UTCJul 16, 12:20 UTC19h 30m
2026-07-15 UZB5339 - Jul 15, 16:15 UTCJul 16, 12:20 UTC20h 5m
2026-07-15 UZB424 - Jul 15, 08:40 UTCJul 15, 16:50 UTC8h 10m
2026-07-14 UZB272 - Jul 14, 10:50 UTCJul 15, 06:30 UTC19h 39m
2026-07-14 UZB272 - Jul 14, 09:55 UTCJul 15, 06:30 UTC20h 34m
2026-07-14 UZB271 - Jul 14, 05:05 UTCJul 14, 07:35 UTC2h 30m
2026-07-12 UZB426 - Jul 12, 19:10 UTCJul 12, 19:45 UTC35m
2026-07-12 UZB425 TAS → DEL Jul 12, 16:01 UTCJul 12, 16:55 UTC55m
2026-07-11 UZB706 - Jul 11, 20:40 UTCJul 12, 16:55 UTC20h 15m
2026-07-11 UZB705 - Jul 11, 07:15 UTCJul 11, 21:55 UTC14h 40m
2026-07-05 UZB426 - Jul 5, 19:05 UTCJul 5, 19:45 UTC40m
2026-07-05 UZB425 TAS → DEL Jul 5, 16:15 UTCJul 5, 16:55 UTC40m
2026-07-04 UZB425 TAS → DEL Jul 4, 20:50 UTCJul 5, 16:55 UTC20h 5m
2026-07-04 UZB706 - Jul 4, 19:40 UTCJul 5, 16:55 UTC21h 15m
2026-07-04 UZB706 - Jul 4, 07:20 UTCJul 4, 21:20 UTC14h 0m
2026-07-03 UZB3510 - Jul 3, 14:10 UTCJul 4, 08:25 UTC18h 15m
2026-07-03 UZB3509 - Jul 3, 10:25 UTCJul 3, 11:00 UTC35m
2026-07-02 UZB338 - Jul 2, 10:50 UTCJul 3, 10:45 UTC23h 55m
2026-07-02 UZB338 - Jul 2, 10:40 UTCJul 2, 11:40 UTC1h 0m
2026-06-30 UZB601 TAS → DME Jun 30, 18:00 UTCJun 30, 18:45 UTC45m
2026-06-29 UZB424 - Jun 29, 08:50 UTCJun 29, 09:25 UTC35m
2026-06-28 UZB423 - Jun 28, 19:09 UTCJun 29, 06:29 UTC11h 20m
2026-06-28 UZB425 TAS → DEL Jun 28, 16:25 UTCJun 28, 17:00 UTC35m
2026-06-27 UZB706 - Jun 27, 07:10 UTCJun 27, 20:59 UTC13h 50m
2026-06-26 UZB705 - Jun 26, 16:09 UTCJun 27, 08:20 UTC16h 10m
2026-06-26 UZB422 - Jun 26, 01:45 UTCJun 26, 16:30 UTC14h 45m
2026-06-25 UZB421 - Jun 25, 22:59 UTCJun 25, 23:09 UTC10m
2026-06-25 UZB338 - Jun 25, 02:19 UTCJun 25, 13:24 UTC11h 5m
2026-06-22 UZB282 - Jun 22, 03:19 UTCJun 22, 05:15 UTC1h 55m
2026-06-21 UZB281 - Jun 21, 22:54 UTCJun 22, 01:25 UTC2h 30m
2026-06-20 UZB705 - Jun 20, 07:09 UTCJun 20, 20:45 UTC13h 35m
2026-06-18 UZB601 TAS → DME Jun 18, 17:21 UTCJun 19, 05:59 UTC12h 38m
2026-06-17 UZB424 - Jun 17, 08:55 UTCJun 17, 16:40 UTC7h 45m
2026-06-17 UZB423 - Jun 17, 05:45 UTCJun 17, 06:35 UTC50m
2026-06-15 UZB424 DEL → TAS Jun 15, 08:29 UTCJun 15, 16:24 UTC7h 55m
2026-06-14 UZB423 - Jun 14, 22:25 UTCJun 15, 06:20 UTC7h 55m
2026-06-14 UZB425 TAS → DEL Jun 14, 06:45 UTCJun 14, 20:30 UTC13h 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-67007 page for operator, model, and routing details .

Mode-S 507C4B frequently asked

What is Mode-S code 507C4B?
507C4B is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK-67007.
Where is Mode-S 507C4B registered?
Mode-S code 507C4B is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507C4B broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:55 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507C4B, octal 24076113, decimal 5,274,699.
What flights does 507C4B operate?
Mode-S 507C4B has broadcast 20 distinct callsigns, including UZB706, UZB423, UZB425, UZB422, UZB705.