Apparatus

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sensors Mode-S transponder

507C4C

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK-78701 · BOEING 787-8 Dreamliner

Hex
507C4C
Octal
24076114
Decimal
5,274,700
Country
UZ
Tail
UK-78701
Type
B788
No current signal · last broadcast 4h ago
Flights observed
170
Distinct callsigns
20
Country
UZ
Last broadcast
4h ago

Last known position

Most recent position reported by Mode-S 507C4C.

Country allocation

The ICAO 24-bit address 507C4C 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
UZB511 - 14 2026-07-13
UZB273 Uzbekistan Airways 13 2026-07-12
UZB527 - 10 2026-06-25
UZB255 Uzbekistan Airways 10 2026-06-05
UZB528 - 9 2026-06-26
UZB513 - 8 2026-07-09
UZB271 - 8 2026-07-02
UZB202 Uzbekistan Airways 8 2026-06-23
UZB515 - 7 2026-07-11
UZB274 - 7 2026-07-12
UZB256 Uzbekistan Airways 7 2026-06-05
UZB231 Uzbekistan Airways 7 2026-06-11
UZB514 - 6 2026-06-20
UZB512 - 6 2026-07-14
UZB272 - 6 2026-07-02
UZB201 - 5 2026-06-22
UZB553 Uzbekistan Airways 4 2026-05-07
UZB334 - 4 2026-07-13
UZB613 Uzbekistan Airways 3 2026-07-03
UZB232 Uzbekistan Airways 3 2026-04-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 UZB512 - Jul 14, 01:55 UTCJul 14, 03:20 UTC1h 25m
2026-07-13 UZB511 - Jul 13, 23:25 UTCJul 13, 23:50 UTC25m
2026-07-13 UZB334 - Jul 13, 08:45 UTCJul 13, 22:40 UTC13h 55m
2026-07-12 UZB274 - Jul 12, 19:01 UTCJul 13, 06:30 UTC11h 30m
2026-07-12 UZB273 TAS → IST Jul 12, 16:30 UTCJul 12, 16:50 UTC20m
2026-07-11 UZB273 TAS → IST Jul 11, 23:45 UTCJul 12, 15:15 UTC15h 30m
2026-07-11 UZB515 - Jul 11, 21:10 UTCJul 11, 21:25 UTC15m
2026-07-11 UZB515 - Jul 11, 19:50 UTCJul 11, 20:10 UTC20m
2026-07-10 UZB515 - Jul 10, 23:45 UTCJul 11, 20:10 UTC20h 25m
2026-07-10 UZB102 - Jul 10, 17:30 UTCJul 11, 00:00 UTC6h 30m
2026-07-09 UZB101 - Jul 9, 19:15 UTCJul 10, 14:25 UTC19h 10m
2026-07-09 UZB273 TAS → IST Jul 9, 16:40 UTCJul 9, 17:00 UTC20m
2026-07-09 UZB273 TAS → IST Jul 9, 03:00 UTCJul 9, 15:55 UTC12h 55m
2026-07-09 UZB513 - Jul 9, 00:05 UTCJul 9, 00:25 UTC20m
2026-07-08 UZB513 - Jul 8, 22:55 UTCJul 8, 23:15 UTC20m
2026-07-07 UZB506 - Jul 7, 02:00 UTCJul 7, 02:10 UTC10m
2026-07-06 UZB505 - Jul 6, 22:40 UTCJul 6, 22:55 UTC15m
2026-07-06 UZB334 - Jul 6, 08:50 UTCJul 6, 09:15 UTC25m
2026-07-05 UZB274 - Jul 5, 19:00 UTCJul 6, 06:30 UTC11h 30m
2026-07-04 UZB273 TAS → IST Jul 4, 23:40 UTCJul 5, 16:55 UTC17h 15m
2026-07-04 UZB515 - Jul 4, 21:15 UTCJul 4, 21:35 UTC20m
2026-07-04 UZB334 - Jul 4, 09:25 UTCJul 4, 09:55 UTC30m
2026-07-03 UZB613 TAS → VKO Jul 3, 15:25 UTCJul 4, 06:55 UTC15h 30m
2026-07-03 UZB613 TAS → VKO Jul 3, 02:50 UTCJul 3, 20:40 UTC17h 50m
2026-07-03 UZB512 - Jul 3, 01:35 UTCJul 3, 01:50 UTC15m
2026-07-02 UZB511 - Jul 2, 22:55 UTCJul 2, 23:15 UTC20m
2026-07-02 UZB272 - Jul 2, 09:50 UTCJul 2, 22:10 UTC12h 20m
2026-07-02 UZB271 - Jul 2, 07:25 UTCJul 2, 07:45 UTC20m
2026-07-02 UZB271 - Jul 2, 05:20 UTCJul 2, 06:45 UTC1h 25m
2026-07-01 UZB512 - Jul 1, 01:40 UTCJul 1, 03:10 UTC1h 30m
2026-06-30 UZB511 - Jun 30, 22:50 UTCJun 30, 23:10 UTC20m
2026-06-30 UZB511 - Jun 30, 03:05 UTCJun 30, 22:00 UTC18h 55m
2026-06-30 UZB511 - Jun 30, 02:50 UTCJun 30, 22:00 UTC19h 10m
2026-06-30 UZB512 - Jun 30, 01:40 UTCJun 30, 01:55 UTC15m
2026-06-29 UZB511 - Jun 29, 23:05 UTCJun 29, 23:25 UTC20m
2026-06-29 UZB334 - Jun 29, 09:00 UTCJun 29, 22:10 UTC13h 10m
2026-06-28 UZB274 - Jun 28, 19:40 UTCJun 29, 05:54 UTC10h 15m
2026-06-27 UZB273 TAS → IST Jun 27, 23:45 UTCJun 28, 17:04 UTC17h 20m
2026-06-27 UZB272 - Jun 27, 10:10 UTCJun 27, 21:44 UTC11h 35m
2026-06-27 UZB271 - Jun 27, 08:05 UTCJun 27, 08:29 UTC25m
2026-06-26 UZB274 - Jun 26, 21:55 UTCJun 27, 07:24 UTC9h 30m
2026-06-26 UZB528 - Jun 26, 03:39 UTCJun 26, 19:30 UTC15h 50m
2026-06-25 UZB527 - Jun 25, 10:25 UTCJun 25, 23:55 UTC13h 30m
2026-06-25 UZB271 - Jun 25, 05:50 UTCJun 25, 08:20 UTC2h 30m
2026-06-24 UZB271 - Jun 24, 09:05 UTCJun 25, 08:20 UTC23h 15m
2026-06-24 UZB333 - Jun 24, 05:54 UTCJun 24, 06:10 UTC15m
2026-06-23 UZB202 LHR → TAS Jun 23, 15:59 UTCJun 23, 19:39 UTC3h 40m
2026-06-22 UZB201 - Jun 22, 20:30 UTCJun 23, 13:59 UTC17h 30m
2026-06-22 UZB201 - Jun 22, 15:29 UTCJun 23, 13:59 UTC22h 30m
2026-06-22 UZB613 TAS → VKO Jun 22, 01:05 UTCJun 22, 20:34 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 UK-78701 page for operator, model, and routing details .

Mode-S 507C4C frequently asked

What is Mode-S code 507C4C?
507C4C is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK-78701.
Where is Mode-S 507C4C registered?
Mode-S code 507C4C is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507C4C broadcasting right now?
No active broadcast right now. Last signal was 4h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507C4C, octal 24076114, decimal 5,274,700.
What flights does 507C4C operate?
Mode-S 507C4C has broadcast 20 distinct callsigns, including UZB511, UZB273, UZB527, UZB255, UZB528.