sensors Mode-S transponder
507CB9
ICAO 24-bit transponder address · allocated to Uzbekistan
Currently assigned to UK32112 · AIRBUS A-321neo
- Hex
- 507CB9
- Octal
- 24076271
- Decimal
- 5,274,809
- Country
- UZ
- Tail
- UK32112
- Type
- A21N
- Flights observed
- 142
- Distinct callsigns
- 15
- Country
- UZ
- Last broadcast
- 11h ago
Last known position
Country allocation
The ICAO 24-bit address 507CB9 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 15 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| QNT862 | - | 37 | 2026-07-12 |
| QNT443 | - | 19 | 2026-07-13 |
| QNT492 | - | 15 | 2026-07-10 |
| QNT867 | - | 10 | 2026-07-12 |
| QNT444 | - | 10 | 2026-07-13 |
| QNT202 | - | 10 | 2026-06-10 |
| QNT822 | - | 8 | 2026-07-11 |
| QNT821 | - | 8 | 2026-07-11 |
| QNT868 | - | 6 | 2026-05-29 |
| QNT406 | - | 6 | 2026-07-08 |
| QNT201 | - | 6 | 2026-06-24 |
| QNT405 | Qanot Sharq | 3 | 2026-06-30 |
| QNT2240 | - | 2 | 2026-06-12 |
| QNT861 | - | 1 | 2026-06-01 |
| QNT491 | - | 1 | 2026-06-11 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | QNT444 | - | Jul 13, 19:15 UTC | Jul 13, 23:45 UTC | 4h 30m |
| 2026-07-13 | QNT443 | - | Jul 13, 14:35 UTC | Jul 13, 16:50 UTC | 2h 15m |
| 2026-07-12 | QNT443 | - | Jul 12, 18:25 UTC | Jul 13, 16:50 UTC | 22h 25m |
| 2026-07-12 | QNT867 | - | Jul 12, 15:35 UTC | Jul 12, 15:45 UTC | 10m |
| 2026-07-12 | QNT862 | - | Jul 12, 02:35 UTC | Jul 12, 06:05 UTC | 3h 30m |
| 2026-07-11 | QNT822 | - | Jul 11, 07:25 UTC | Jul 11, 07:45 UTC | 20m |
| 2026-07-11 | QNT821 | - | Jul 11, 04:45 UTC | Jul 11, 05:10 UTC | 25m |
| 2026-07-10 | QNT492 | - | Jul 10, 15:10 UTC | Jul 11, 04:01 UTC | 12h 51m |
| 2026-07-09 | QNT444 | LGW → FRA | Jul 9, 22:25 UTC | Jul 10, 13:15 UTC | 14h 50m |
| 2026-07-09 | QNT443 | - | Jul 9, 18:10 UTC | Jul 9, 19:50 UTC | 1h 40m |
| 2026-07-08 | QNT406 | - | Jul 8, 12:25 UTC | Jul 8, 15:55 UTC | 3h 30m |
| 2026-07-07 | QNT492 | - | Jul 7, 13:35 UTC | Jul 7, 17:25 UTC | 3h 50m |
| 2026-07-06 | QNT444 | LGW → FRA | Jul 6, 18:35 UTC | Jul 7, 11:20 UTC | 16h 45m |
| 2026-07-06 | QNT443 | - | Jul 6, 14:10 UTC | Jul 6, 16:10 UTC | 2h 0m |
| 2026-07-05 | QNT443 | - | Jul 5, 18:25 UTC | Jul 6, 16:10 UTC | 21h 45m |
| 2026-07-05 | QNT867 | - | Jul 5, 15:25 UTC | Jul 5, 15:40 UTC | 15m |
| 2026-07-05 | QNT862 | - | Jul 5, 01:25 UTC | Jul 5, 05:35 UTC | 4h 10m |
| 2026-07-04 | QNT862 | - | Jul 4, 08:20 UTC | Jul 5, 05:35 UTC | 21h 15m |
| 2026-07-04 | QNT862 | - | Jul 4, 07:55 UTC | Jul 5, 05:35 UTC | 21h 40m |
| 2026-07-04 | QNT822 | - | Jul 4, 06:45 UTC | Jul 4, 07:00 UTC | 15m |
| 2026-07-04 | QNT821 | - | Jul 4, 04:15 UTC | Jul 4, 04:35 UTC | 20m |
| 2026-07-03 | QNT492 | - | Jul 3, 14:40 UTC | Jul 4, 03:20 UTC | 12h 40m |
| 2026-07-02 | QNT444 | LGW → FRA | Jul 2, 21:15 UTC | Jul 3, 12:35 UTC | 15h 20m |
| 2026-07-02 | QNT443 | - | Jul 2, 17:20 UTC | Jul 2, 19:30 UTC | 2h 10m |
| 2026-07-01 | QNT406 | PRG → TAS | Jul 1, 13:25 UTC | Jul 1, 17:15 UTC | 3h 50m |
| 2026-06-30 | QNT405 | TAS → PRG | Jun 30, 16:55 UTC | Jul 1, 11:10 UTC | 18h 15m |
| 2026-06-30 | QNT492 | - | Jun 30, 14:20 UTC | Jul 1, 11:10 UTC | 20h 50m |
| 2026-06-30 | QNT492 | - | Jun 30, 13:30 UTC | Jun 30, 17:30 UTC | 4h 0m |
| 2026-06-29 | QNT444 | LGW → FRA | Jun 29, 18:05 UTC | Jun 30, 11:30 UTC | 17h 25m |
| 2026-06-28 | QNT443 | - | Jun 28, 18:40 UTC | Jun 29, 16:15 UTC | 21h 35m |
| 2026-06-28 | QNT867 | - | Jun 28, 16:05 UTC | Jun 28, 16:19 UTC | 15m |
| 2026-06-28 | QNT862 | - | Jun 28, 01:25 UTC | Jun 28, 05:29 UTC | 4h 5m |
| 2026-06-27 | QNT822 | - | Jun 27, 06:59 UTC | Jun 27, 20:39 UTC | 13h 40m |
| 2026-06-27 | QNT822 | - | Jun 27, 05:44 UTC | Jun 27, 06:05 UTC | 20m |
| 2026-06-27 | QNT821 | - | Jun 27, 03:25 UTC | Jun 27, 03:49 UTC | 25m |
| 2026-06-26 | QNT492 | - | Jun 26, 13:59 UTC | Jun 27, 02:35 UTC | 12h 35m |
| 2026-06-25 | QNT444 | LGW → FRA | Jun 25, 21:10 UTC | Jun 26, 11:49 UTC | 14h 40m |
| 2026-06-25 | QNT443 | - | Jun 25, 00:19 UTC | Jun 25, 19:29 UTC | 19h 10m |
| 2026-06-24 | QNT443 | - | Jun 24, 22:19 UTC | Jun 25, 19:29 UTC | 21h 10m |
| 2026-06-24 | QNT443 | - | Jun 24, 22:04 UTC | Jun 25, 19:29 UTC | 21h 25m |
| 2026-06-24 | QNT201 | - | Jun 24, 14:20 UTC | Jun 25, 08:50 UTC | 18h 30m |
| 2026-06-24 | QNT406 | PRG → TAS | Jun 24, 12:54 UTC | Jun 25, 08:50 UTC | 19h 55m |
| 2026-06-23 | QNT492 | - | Jun 23, 14:19 UTC | Jun 24, 11:05 UTC | 20h 45m |
| 2026-06-23 | QNT492 | FRA → PRG | Jun 23, 13:15 UTC | Jun 24, 11:05 UTC | 21h 50m |
| 2026-06-22 | QNT444 | LGW → FRA | Jun 22, 18:04 UTC | Jun 23, 11:24 UTC | 17h 20m |
| 2026-06-22 | QNT443 | - | Jun 22, 13:39 UTC | Jun 22, 16:20 UTC | 2h 40m |
| 2026-06-21 | QNT443 | - | Jun 21, 20:45 UTC | Jun 22, 16:20 UTC | 19h 35m |
| 2026-06-21 | QNT867 | - | Jun 21, 18:35 UTC | Jun 21, 18:50 UTC | 15m |
| 2026-06-21 | QNT862 | - | Jun 21, 01:59 UTC | Jun 21, 10:19 UTC | 8h 20m |
| 2026-06-20 | QNT862 | - | Jun 20, 12:19 UTC | Jun 21, 10:19 UTC | 22h 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 UK32112 page for operator, model, and routing details .