sensors Mode-S transponder
507C5F
ICAO 24-bit transponder address · allocated to Uzbekistan
Currently assigned to UK-32102 · AIRBUS A-321neo
- Hex
- 507C5F
- Octal
- 24076137
- Decimal
- 5,274,719
- Country
- UZ
- Tail
- UK-32102
- Type
- A21N
- Flights observed
- 21
- Distinct callsigns
- 14
- Country
- UZ
- Last broadcast
- Jul 26, 20:35 UTC
Current position
Country allocation
The ICAO 24-bit address 507C5F 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| UZB3224 | Uzbekistan Airways | 3 | 2026-07-24 |
| UZB203 | Uzbekistan Airways | 3 | 2026-07-26 |
| UZB3223 | - | 2 | 2026-07-24 |
| UZB255 | Uzbekistan Airways | 2 | 2026-07-17 |
| UZB204 | Uzbekistan Airways | 2 | 2026-07-26 |
| UZB634 | Uzbekistan Airways | 1 | 2026-07-20 |
| UZB510 | - | 1 | 2026-07-22 |
| UZB342 | - | 1 | 2026-07-16 |
| UZB341 | - | 1 | 2026-07-16 |
| UZB334 | Uzbekistan Airways | 1 | 2026-07-25 |
| UZB3234 | - | 1 | 2026-07-18 |
| UZB256 | - | 1 | 2026-07-17 |
| UZB252 | Uzbekistan Airways | 1 | 2026-07-14 |
| UZB251 | - | 1 | 2026-07-14 |
Recent flights last 21
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | UZB204 | LHR → TAS | Jul 26, 18:10 UTC | Jul 26, 20:35 UTC | 2h 25m |
| 2026-07-26 | UZB203 | TAS → LHR | Jul 26, 10:20 UTC | Jul 26, 15:15 UTC | 4h 55m |
| 2026-07-25 | UZB203 | TAS → LHR | Jul 25, 11:50 UTC | Jul 26, 11:45 UTC | 23h 56m |
| 2026-07-25 | UZB334 | DXB → TAS | Jul 25, 04:50 UTC | Jul 25, 11:55 UTC | 7h 5m |
| 2026-07-24 | UZB3224 | AYT → TAS | Jul 24, 15:50 UTC | Jul 25, 11:55 UTC | 20h 5m |
| 2026-07-24 | UZB3224 | AYT → TAS | Jul 24, 14:35 UTC | Jul 25, 11:45 UTC | 21h 10m |
| 2026-07-24 | UZB3223 | - | Jul 24, 09:20 UTC | Jul 24, 11:55 UTC | 2h 35m |
| 2026-07-22 | UZB510 | - | Jul 22, 11:35 UTC | Jul 23, 05:00 UTC | 17h 25m |
| 2026-07-21 | UZB3224 | AYT → TAS | Jul 21, 14:15 UTC | Jul 22, 04:40 UTC | 14h 25m |
| 2026-07-21 | UZB3223 | - | Jul 21, 09:35 UTC | Jul 21, 12:10 UTC | 2h 35m |
| 2026-07-20 | UZB634 | LED → TAS | Jul 20, 10:30 UTC | Jul 20, 10:40 UTC | 10m |
| 2026-07-19 | UZB204 | LHR → TAS | Jul 19, 18:25 UTC | Jul 19, 22:40 UTC | 4h 15m |
| 2026-07-19 | UZB203 | TAS → LHR | Jul 19, 10:50 UTC | Jul 19, 15:25 UTC | 4h 35m |
| 2026-07-18 | UZB3234 | - | Jul 18, 12:10 UTC | Jul 19, 10:55 UTC | 22h 45m |
| 2026-07-17 | UZB256 | - | Jul 17, 19:49 UTC | Jul 18, 10:50 UTC | 15h 1m |
| 2026-07-17 | UZB255 | TAS → MXP | Jul 17, 13:00 UTC | Jul 17, 17:40 UTC | 4h 40m |
| 2026-07-16 | UZB255 | TAS → MXP | Jul 16, 16:05 UTC | Jul 17, 15:44 UTC | 23h 40m |
| 2026-07-16 | UZB342 | - | Jul 16, 14:20 UTC | Jul 17, 13:45 UTC | 23h 25m |
| 2026-07-16 | UZB341 | - | Jul 16, 09:15 UTC | Jul 16, 16:44 UTC | 7h 30m |
| 2026-07-14 | UZB252 | CDG → TAS | Jul 14, 19:50 UTC | Jul 14, 22:15 UTC | 2h 25m |
| 2026-07-14 | UZB251 | - | Jul 14, 14:40 UTC | Jul 14, 16:40 UTC | 2h 0m |
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-32102 page for operator, model, and routing details .