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 18h ago
Flights observed
95
Distinct callsigns
20
Country
UZ
Last broadcast
18h 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
UZB554 Uzbekistan Airways 11 2026-05-14
UZB511 - 9 2026-05-21
UZB255 Uzbekistan Airways 7 2026-05-25
UZB553 Uzbekistan Airways 6 2026-05-13
UZB528 Uzbekistan Airways 6 2026-05-05
UZB256 Uzbekistan Airways 6 2026-05-22
UZB512 - 5 2026-05-20
UZB333 Uzbekistan Airways 5 2026-05-29
UZB274 Uzbekistan Airways 5 2026-05-23
UZB273 Uzbekistan Airways 5 2026-05-22
UZB516 - 4 2026-05-16
UZB515 - 4 2026-05-16
UZB334 Uzbekistan Airways 4 2026-05-13
UZB527 Uzbekistan Airways 3 2026-05-04
UZB513 - 3 2026-05-01
UZB271 Uzbekistan Airways 3 2026-05-27
UZB201 Uzbekistan Airways 3 2026-05-25
UZB514 - 2 2026-05-02
UZB272 Uzbekistan Airways 2 2026-05-27
UZB202 Uzbekistan Airways 2 2026-05-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 UZB333 TAS → DXB May 29, 04:20 UTCMay 29, 11:00 UTC6h 40m
2026-05-27 UZB272 IST → TAS May 27, 09:55 UTCMay 27, 11:50 UTC1h 55m
2026-05-27 UZB271 TAS → IST May 27, 07:25 UTCMay 27, 07:35 UTC10m
2026-05-26 UZB202 LHR → TAS May 26, 16:05 UTCMay 27, 06:34 UTC14h 30m
2026-05-25 UZB201 TAS → LHR May 25, 19:20 UTCMay 26, 14:00 UTC18h 40m
2026-05-25 UZB201 TAS → LHR May 25, 18:50 UTCMay 26, 14:00 UTC19h 9m
2026-05-25 UZB255 TAS → MXP May 25, 13:15 UTCMay 25, 17:10 UTC3h 55m
2026-05-24 UZB272 IST → TAS May 24, 10:00 UTCMay 24, 11:50 UTC1h 50m
2026-05-24 UZB271 TAS → IST May 24, 07:20 UTCMay 24, 07:30 UTC10m
2026-05-23 UZB274 IST → TAS May 23, 19:25 UTCMay 24, 06:35 UTC11h 10m
2026-05-22 UZB273 TAS → IST May 22, 21:20 UTCMay 23, 16:20 UTC19h 0m
2026-05-22 UZB256 MXP → TAS May 22, 19:20 UTCMay 23, 16:20 UTC21h 0m
2026-05-22 UZB256 MXP → TAS May 22, 19:10 UTCMay 23, 16:20 UTC21h 9m
2026-05-22 UZB255 TAS → MXP May 22, 01:40 UTCMay 22, 17:05 UTC15h 25m
2026-05-21 UZB511 - May 21, 22:50 UTCMay 21, 23:15 UTC25m
2026-05-21 UZB511 - May 21, 21:45 UTCMay 21, 22:15 UTC30m
2026-05-20 UZB274 IST → TAS May 20, 19:20 UTCMay 20, 21:15 UTC1h 55m
2026-05-20 UZB273 TAS → IST May 20, 02:55 UTCMay 20, 15:55 UTC13h 1m
2026-05-20 UZB512 - May 20, 01:45 UTCMay 20, 02:05 UTC20m
2026-05-19 UZB511 - May 19, 22:50 UTCMay 19, 23:15 UTC25m
2026-05-19 UZB512 - May 19, 03:35 UTCMay 19, 22:00 UTC18h 25m
2026-05-18 UZB511 - May 18, 23:30 UTCMay 18, 23:50 UTC20m
2026-05-18 UZB511 - May 18, 04:00 UTCMay 18, 22:50 UTC18h 49m
2026-05-16 UZB516 - May 16, 23:45 UTCMay 17, 00:00 UTC15m
2026-05-16 UZB515 - May 16, 21:20 UTCMay 16, 21:40 UTC20m
2026-05-15 UZB256 MXP → TAS May 15, 19:05 UTCMay 15, 22:40 UTC3h 35m
2026-05-15 UZB255 TAS → MXP May 15, 13:05 UTCMay 15, 17:15 UTC4h 9m
2026-05-15 UZB512 - May 15, 01:50 UTCMay 15, 02:05 UTC15m
2026-05-14 UZB511 - May 14, 22:55 UTCMay 14, 23:15 UTC20m
2026-05-14 UZB554 KUL → TAS May 14, 03:55 UTCMay 14, 09:15 UTC5h 20m
2026-05-13 UZB553 TAS → KUL May 13, 20:50 UTCMay 14, 01:45 UTC4h 55m
2026-05-13 UZB334 DXB → TAS May 13, 09:30 UTCMay 13, 09:50 UTC20m
2026-05-12 UZB202 LHR → TAS May 12, 15:55 UTCMay 13, 03:55 UTC12h 0m
2026-05-11 UZB201 TAS → LHR May 11, 19:20 UTCMay 12, 13:51 UTC18h 30m
2026-05-11 UZB255 TAS → MXP May 11, 01:34 UTCMay 11, 17:30 UTC15h 56m
2026-05-10 UZB271 TAS → IST May 10, 05:04 UTCMay 10, 11:55 UTC6h 50m
2026-05-08 UZB256 MXP → TAS May 8, 23:15 UTCMay 9, 02:50 UTC3h 35m
2026-05-08 UZB255 TAS → MXP May 8, 17:05 UTCMay 8, 21:15 UTC4h 10m
2026-05-06 UZB256 MXP → TAS May 6, 19:55 UTCMay 6, 23:35 UTC3h 40m
2026-05-06 UZB255 TAS → MXP May 6, 01:25 UTCMay 6, 18:15 UTC16h 49m
2026-05-05 UZB528 NRT → TAS May 5, 03:20 UTCMay 5, 22:05 UTC18h 45m
2026-05-05 UZB528 NRT → TAS May 5, 02:25 UTCMay 5, 22:05 UTC19h 40m
2026-05-04 UZB527 TAS → NRT May 4, 21:15 UTCMay 5, 00:10 UTC2h 55m
2026-05-04 UZB334 DXB → TAS May 4, 09:00 UTCMay 4, 09:25 UTC25m
2026-05-04 UZB333 TAS → DXB May 4, 03:54 UTCMay 4, 06:15 UTC2h 20m
2026-05-03 UZB516 - May 3, 01:10 UTCMay 3, 01:30 UTC20m
2026-05-02 UZB516 - May 2, 23:55 UTCMay 3, 00:05 UTC10m
2026-05-02 UZB515 - May 2, 21:15 UTCMay 2, 21:30 UTC15m
2026-05-02 UZB515 - May 2, 02:55 UTCMay 2, 20:30 UTC17h 35m
2026-05-02 UZB514 - May 2, 01:40 UTCMay 2, 01:50 UTC10m

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 18h 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 UZB554, UZB511, UZB255, UZB553, UZB528.