Apparatus

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sensors Mode-S transponder

507C4D

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK-78702 · BOEING 787-8 Dreamliner

Hex
507C4D
Octal
24076115
Decimal
5,274,701
Country
UZ
Tail
UK-78702
Type
B788
No current signal · last broadcast 3h ago
Flights observed
175
Distinct callsigns
20
Country
UZ
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S 507C4D.

Country allocation

The ICAO 24-bit address 507C4D 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 - 21 2026-07-12
UZB273 Uzbekistan Airways 15 2026-07-13
UZB554 - 12 2026-06-15
UZB274 - 12 2026-07-13
UZB528 - 11 2026-07-10
UZB553 - 9 2026-07-02
UZB512 - 9 2026-07-08
UZB334 - 9 2026-07-05
UZB515 - 8 2026-06-20
UZB255 Uzbekistan Airways 8 2026-06-10
UZB513 - 7 2026-07-10
UZB333 - 7 2026-06-22
UZB256 Uzbekistan Airways 7 2026-06-10
UZB527 - 6 2026-07-02
UZB271 - 6 2026-07-12
UZB516 - 5 2026-06-20
UZB272 - 5 2026-07-12
UZB8261 - 4 2026-06-28
UZB514 - 3 2026-06-18
UZB201 Uzbekistan Airways 3 2026-05-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 UZB274 - Jul 13, 19:15 UTCJul 14, 04:15 UTC9h 0m
2026-07-13 UZB273 TAS → IST Jul 13, 01:30 UTCJul 13, 16:50 UTC15h 20m
2026-07-12 UZB511 - Jul 12, 22:50 UTCJul 12, 23:10 UTC20m
2026-07-12 UZB272 - Jul 12, 09:55 UTCJul 12, 22:05 UTC12h 10m
2026-07-12 UZB271 - Jul 12, 07:20 UTCJul 12, 07:40 UTC20m
2026-07-11 UZB274 - Jul 11, 19:00 UTCJul 12, 06:30 UTC11h 30m
2026-07-11 UZB273 TAS → IST Jul 11, 01:45 UTCJul 11, 15:45 UTC14h 0m
2026-07-10 UZB513 - Jul 10, 23:10 UTCJul 10, 23:35 UTC25m
2026-07-10 UZB528 - Jul 10, 03:10 UTCJul 10, 22:15 UTC19h 5m
2026-07-09 UZB232 FRA → NRT Jul 9, 10:50 UTCJul 10, 01:20 UTC14h 30m
2026-07-08 UZB231 - Jul 8, 19:05 UTCJul 9, 08:05 UTC13h 0m
2026-07-08 UZB273 TAS → IST Jul 8, 02:55 UTCJul 8, 17:00 UTC14h 5m
2026-07-08 UZB512 - Jul 8, 01:45 UTCJul 8, 02:00 UTC15m
2026-07-07 UZB511 - Jul 7, 22:45 UTCJul 7, 23:05 UTC20m
2026-07-07 UZB511 - Jul 7, 21:35 UTCJul 7, 22:00 UTC25m
2026-07-07 UZB511 - Jul 7, 02:55 UTCJul 7, 22:00 UTC19h 5m
2026-07-07 UZB512 - Jul 7, 01:40 UTCJul 7, 01:55 UTC15m
2026-07-06 UZB511 - Jul 6, 22:50 UTCJul 6, 23:10 UTC20m
2026-07-06 UZB511 - Jul 6, 03:30 UTCJul 6, 22:10 UTC18h 40m
2026-07-06 UZB512 - Jul 6, 02:15 UTCJul 6, 22:10 UTC19h 55m
2026-07-05 UZB511 - Jul 5, 22:40 UTCJul 5, 23:00 UTC20m
2026-07-05 UZB334 - Jul 5, 08:55 UTCJul 5, 21:55 UTC13h 0m
2026-07-04 UZB274 - Jul 4, 19:20 UTCJul 5, 06:35 UTC11h 15m
2026-07-04 UZB273 TAS → IST Jul 4, 16:50 UTCJul 4, 17:10 UTC20m
2026-07-04 UZB273 TAS → IST Jul 4, 01:40 UTCJul 4, 16:10 UTC14h 30m
2026-07-03 UZB513 - Jul 3, 23:15 UTCJul 3, 23:35 UTC20m
2026-07-03 UZB528 - Jul 3, 03:20 UTCJul 3, 22:35 UTC19h 15m
2026-07-03 UZB528 - Jul 3, 02:30 UTCJul 3, 22:35 UTC20h 5m
2026-07-02 UZB527 - Jul 2, 06:41 UTCJul 3, 00:25 UTC17h 44m
2026-07-02 UZB527 - Jul 2, 04:15 UTCJul 3, 00:25 UTC20h 10m
2026-07-02 UZB553 - Jul 2, 01:50 UTCJul 2, 02:10 UTC20m
2026-07-01 UZB553 - Jul 1, 08:55 UTCJul 1, 23:15 UTC14h 20m
2026-06-30 UZB8262 - Jun 30, 16:35 UTCJul 1, 06:35 UTC14h 0m
2026-06-28 UZB8261 - Jun 28, 02:34 UTCJun 28, 02:54 UTC20m
2026-06-28 UZB8261 - Jun 28, 00:25 UTCJun 28, 01:10 UTC45m
2026-06-22 UZB334 - Jun 22, 08:44 UTCJun 22, 09:10 UTC25m
2026-06-22 UZB333 - Jun 22, 06:05 UTCJun 22, 06:15 UTC10m
2026-06-20 UZB516 - Jun 20, 23:34 UTCJun 21, 01:19 UTC1h 45m
2026-06-20 UZB515 - Jun 20, 21:00 UTCJun 20, 21:25 UTC25m
2026-06-20 UZB515 - Jun 20, 20:00 UTCJun 20, 20:25 UTC25m
2026-06-20 UZB334 DXB → TAS Jun 20, 09:09 UTCJun 20, 09:29 UTC20m
2026-06-20 UZB333 - Jun 20, 06:10 UTCJun 20, 06:19 UTC10m
2026-06-19 UZB334 DXB → TAS Jun 19, 08:50 UTCJun 19, 09:09 UTC20m
2026-06-18 UZB274 - Jun 18, 19:30 UTCJun 19, 04:04 UTC8h 34m
2026-06-18 UZB273 TAS → IST Jun 18, 14:50 UTCJun 18, 17:25 UTC2h 35m
2026-06-18 UZB514 - Jun 18, 01:50 UTCJun 18, 02:05 UTC15m
2026-06-17 UZB513 - Jun 17, 22:55 UTCJun 17, 23:20 UTC25m
2026-06-17 UZB272 - Jun 17, 10:05 UTCJun 17, 12:00 UTC1h 55m
2026-06-17 UZB271 - Jun 17, 07:20 UTCJun 17, 07:40 UTC20m
2026-06-16 UZB274 - Jun 16, 19:00 UTCJun 17, 06:45 UTC11h 46m

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-78702 page for operator, model, and routing details .

Mode-S 507C4D frequently asked

What is Mode-S code 507C4D?
507C4D is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK-78702.
Where is Mode-S 507C4D registered?
Mode-S code 507C4D is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507C4D broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507C4D, octal 24076115, decimal 5,274,701.
What flights does 507C4D operate?
Mode-S 507C4D has broadcast 20 distinct callsigns, including UZB511, UZB273, UZB554, UZB274, UZB528.