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
- 53
- Distinct callsigns
- 7
- Country
- UZ
- Last broadcast
- 14h 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 7 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| QNT862 | Qanot Sharq | 26 | 2026-05-29 |
| QNT202 | - | 8 | 2026-05-28 |
| QNT868 | - | 6 | 2026-05-29 |
| QNT867 | - | 5 | 2026-05-29 |
| QNT821 | - | 3 | 2026-05-18 |
| QNT201 | - | 3 | 2026-05-06 |
| QNT822 | Qanot Sharq | 2 | 2026-05-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | QNT868 | - | May 29, 18:25 UTC | May 29, 18:50 UTC | 25m |
| 2026-05-29 | QNT867 | - | May 29, 15:55 UTC | May 29, 16:05 UTC | 10m |
| 2026-05-29 | QNT862 | SYX → TAS | May 29, 00:15 UTC | May 29, 04:25 UTC | 4h 10m |
| 2026-05-28 | QNT202 | - | May 28, 07:05 UTC | May 28, 20:25 UTC | 13h 20m |
| 2026-05-27 | QNT202 | - | May 27, 22:20 UTC | May 28, 20:25 UTC | 22h 5m |
| 2026-05-27 | QNT202 | - | May 27, 21:30 UTC | May 28, 20:15 UTC | 22h 45m |
| 2026-05-26 | QNT862 | SYX → TAS | May 26, 02:35 UTC | May 26, 06:20 UTC | 3h 45m |
| 2026-05-22 | QNT862 | SYX → TAS | May 22, 00:50 UTC | May 22, 04:30 UTC | 3h 40m |
| 2026-05-21 | QNT862 | SYX → TAS | May 21, 07:15 UTC | May 22, 04:30 UTC | 21h 15m |
| 2026-05-20 | QNT202 | - | May 20, 21:55 UTC | May 21, 08:15 UTC | 10h 20m |
| 2026-05-19 | QNT862 | SYX → TAS | May 19, 01:55 UTC | May 19, 05:40 UTC | 3h 45m |
| 2026-05-18 | QNT862 | SYX → TAS | May 18, 05:10 UTC | May 19, 04:15 UTC | 23h 4m |
| 2026-05-18 | QNT822 | ICN → TAS | May 18, 04:00 UTC | May 18, 04:15 UTC | 15m |
| 2026-05-18 | QNT821 | - | May 18, 01:00 UTC | May 18, 01:25 UTC | 25m |
| 2026-05-17 | QNT821 | - | May 17, 23:50 UTC | May 18, 00:10 UTC | 20m |
| 2026-05-15 | QNT862 | SYX → TAS | May 15, 00:50 UTC | May 15, 04:30 UTC | 3h 40m |
| 2026-05-14 | QNT822 | ICN → TAS | May 14, 04:40 UTC | May 14, 04:55 UTC | 15m |
| 2026-05-14 | QNT821 | - | May 14, 01:35 UTC | May 14, 01:55 UTC | 20m |
| 2026-05-12 | QNT862 | SYX → TAS | May 12, 02:45 UTC | May 12, 05:50 UTC | 3h 5m |
| 2026-05-08 | QNT868 | - | May 8, 18:40 UTC | May 8, 19:00 UTC | 20m |
| 2026-05-08 | QNT867 | - | May 8, 16:10 UTC | May 8, 16:25 UTC | 15m |
| 2026-05-08 | QNT862 | SYX → TAS | May 8, 00:34 UTC | May 8, 04:25 UTC | 3h 50m |
| 2026-05-07 | QNT862 | SYX → TAS | May 7, 08:20 UTC | May 8, 04:25 UTC | 20h 5m |
| 2026-05-07 | QNT862 | SYX → TAS | May 7, 06:20 UTC | May 8, 04:25 UTC | 22h 5m |
| 2026-05-07 | QNT862 | SYX → TAS | May 7, 06:10 UTC | May 8, 04:14 UTC | 22h 5m |
| 2026-05-06 | QNT201 | - | May 6, 21:40 UTC | May 7, 08:45 UTC | 11h 5m |
| 2026-05-05 | QNT862 | SYX → TAS | May 5, 02:20 UTC | May 5, 06:00 UTC | 3h 40m |
| 2026-05-03 | QNT868 | - | May 3, 18:30 UTC | May 3, 18:50 UTC | 20m |
| 2026-05-03 | QNT867 | - | May 3, 15:50 UTC | May 3, 16:05 UTC | 15m |
| 2026-05-01 | QNT868 | - | May 1, 18:30 UTC | May 1, 18:55 UTC | 25m |
| 2026-05-01 | QNT862 | SYX → TAS | May 1, 01:15 UTC | May 1, 16:25 UTC | 15h 10m |
| 2026-04-30 | QNT862 | SYX → TAS | Apr 30, 08:20 UTC | May 1, 05:05 UTC | 20h 45m |
| 2026-04-30 | QNT862 | SYX → TAS | Apr 30, 06:20 UTC | May 1, 05:05 UTC | 22h 45m |
| 2026-04-30 | QNT862 | SYX → TAS | Apr 30, 05:50 UTC | May 1, 04:15 UTC | 22h 25m |
| 2026-04-29 | QNT202 | - | Apr 29, 21:35 UTC | Apr 30, 08:30 UTC | 10h 54m |
| 2026-04-28 | QNT862 | SYX → TAS | Apr 28, 02:20 UTC | Apr 28, 06:00 UTC | 3h 40m |
| 2026-04-26 | QNT867 | - | Apr 26, 15:40 UTC | Apr 26, 15:55 UTC | 15m |
| 2026-04-24 | QNT868 | - | Apr 24, 19:00 UTC | Apr 24, 19:25 UTC | 25m |
| 2026-04-24 | QNT862 | SYX → TAS | Apr 24, 00:25 UTC | Apr 24, 04:50 UTC | 4h 25m |
| 2026-04-23 | QNT862 | SYX → TAS | Apr 23, 08:20 UTC | Apr 24, 04:50 UTC | 20h 29m |
| 2026-04-23 | QNT862 | SYX → TAS | Apr 23, 06:20 UTC | Apr 24, 04:50 UTC | 22h 29m |
| 2026-04-23 | QNT862 | SYX → TAS | Apr 23, 05:55 UTC | Apr 24, 04:15 UTC | 22h 19m |
| 2026-04-22 | QNT202 | - | Apr 22, 21:55 UTC | Apr 23, 08:30 UTC | 10h 36m |
| 2026-04-21 | QNT862 | SYX → TAS | Apr 21, 03:30 UTC | Apr 21, 06:35 UTC | 3h 5m |
| 2026-04-19 | QNT868 | - | Apr 19, 18:40 UTC | Apr 19, 19:00 UTC | 20m |
| 2026-04-19 | QNT867 | - | Apr 19, 15:20 UTC | Apr 19, 15:35 UTC | 15m |
| 2026-04-17 | QNT862 | SYX → TAS | Apr 17, 03:20 UTC | Apr 17, 04:45 UTC | 1h 26m |
| 2026-04-17 | QNT862 | SYX → TAS | Apr 17, 01:50 UTC | Apr 17, 03:15 UTC | 1h 25m |
| 2026-04-16 | QNT202 | - | Apr 16, 07:09 UTC | Apr 16, 08:40 UTC | 1h 30m |
| 2026-04-16 | QNT202 | - | Apr 16, 06:00 UTC | Apr 16, 07:05 UTC | 1h 5m |
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 .