sensors Mode-S transponder
507C88
ICAO 24-bit transponder address · allocated to Uzbekistan
Currently assigned to UK33020 · AIRBUS A-330-200
- Hex
- 507C88
- Octal
- 24076210
- Decimal
- 5,274,760
- Country
- UZ
- Tail
- UK33020
- Type
- A332
- Flights observed
- 121
- Distinct callsigns
- 11
- Country
- UZ
- Last broadcast
- Jul 26, 15:25 UTC
Last known position
Country allocation
The ICAO 24-bit address 507C88 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 11 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| QNT5571 | - | 35 | 2026-07-25 |
| QNT5572 | - | 22 | 2026-07-26 |
| QNT575 | Qanot Sharq | 19 | 2026-07-25 |
| QNT822 | Qanot Sharq | 11 | 2026-05-11 |
| QNT576 | - | 11 | 2026-06-21 |
| QNT862 | - | 9 | 2026-06-22 |
| QNT821 | - | 8 | 2026-05-08 |
| QNT2232 | Qanot Sharq | 3 | 2026-06-10 |
| QNT868 | - | 1 | 2026-06-05 |
| QNT867 | - | 1 | 2026-06-05 |
| QNT2231 | - | 1 | 2026-06-09 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-26 | QNT5572 | - | Jul 26, 13:35 UTC | Jul 26, 15:25 UTC | 1h 50m |
| 2026-07-25 | QNT5571 | - | Jul 25, 22:10 UTC | Jul 26, 11:35 UTC | 13h 26m |
| 2026-07-25 | QNT575 | TAS → IST | Jul 25, 19:25 UTC | Jul 25, 19:50 UTC | 25m |
| 2026-07-25 | QNT575 | TAS → IST | Jul 25, 08:40 UTC | Jul 25, 18:50 UTC | 10h 10m |
| 2026-07-24 | QNT5571 | - | Jul 24, 12:40 UTC | Jul 25, 06:20 UTC | 17h 40m |
| 2026-07-23 | QNT575 | TAS → IST | Jul 23, 18:00 UTC | Jul 24, 10:45 UTC | 16h 45m |
| 2026-07-23 | QNT575 | TAS → IST | Jul 23, 10:05 UTC | Jul 24, 09:40 UTC | 23h 35m |
| 2026-07-23 | QNT5572 | - | Jul 23, 08:35 UTC | Jul 23, 19:20 UTC | 10h 45m |
| 2026-07-22 | QNT5571 | - | Jul 22, 12:45 UTC | Jul 23, 06:35 UTC | 17h 50m |
| 2026-07-20 | QNT5572 | - | Jul 20, 08:40 UTC | Jul 20, 10:25 UTC | 1h 45m |
| 2026-07-19 | QNT5572 | - | Jul 19, 13:45 UTC | Jul 20, 06:30 UTC | 16h 45m |
| 2026-07-19 | QNT5571 | - | Jul 19, 09:30 UTC | Jul 19, 12:10 UTC | 2h 40m |
| 2026-07-13 | QNT5572 | - | Jul 13, 08:05 UTC | Jul 13, 09:55 UTC | 1h 50m |
| 2026-07-12 | QNT5571 | - | Jul 12, 14:05 UTC | Jul 13, 06:20 UTC | 16h 15m |
| 2026-07-12 | QNT5571 | - | Jul 12, 09:20 UTC | Jul 12, 11:45 UTC | 2h 25m |
| 2026-07-11 | QNT5571 | - | Jul 11, 10:05 UTC | Jul 12, 10:01 UTC | 23h 55m |
| 2026-07-11 | QNT5572 | - | Jul 11, 08:50 UTC | Jul 11, 10:35 UTC | 1h 45m |
| 2026-07-11 | QNT5571 | - | Jul 11, 03:35 UTC | Jul 11, 06:20 UTC | 2h 45m |
| 2026-07-09 | QNT5572 | - | Jul 9, 08:40 UTC | Jul 9, 10:25 UTC | 1h 45m |
| 2026-07-09 | QNT5571 | - | Jul 9, 04:00 UTC | Jul 9, 06:40 UTC | 2h 40m |
| 2026-07-06 | QNT5572 | - | Jul 6, 08:50 UTC | Jul 6, 10:35 UTC | 1h 45m |
| 2026-07-05 | QNT5571 | - | Jul 5, 14:35 UTC | Jul 6, 06:55 UTC | 16h 20m |
| 2026-07-05 | QNT5571 | - | Jul 5, 09:45 UTC | Jul 5, 12:45 UTC | 3h 0m |
| 2026-07-04 | QNT5572 | - | Jul 4, 10:20 UTC | Jul 5, 10:00 UTC | 23h 40m |
| 2026-07-04 | QNT5572 | - | Jul 4, 09:05 UTC | Jul 4, 10:55 UTC | 1h 50m |
| 2026-07-04 | QNT5571 | - | Jul 4, 04:00 UTC | Jul 4, 06:35 UTC | 2h 35m |
| 2026-07-02 | QNT5572 | - | Jul 2, 08:45 UTC | Jul 2, 10:35 UTC | 1h 50m |
| 2026-07-02 | QNT5571 | - | Jul 2, 04:10 UTC | Jul 2, 06:35 UTC | 2h 25m |
| 2026-06-29 | QNT5572 | - | Jun 29, 10:50 UTC | Jun 29, 12:34 UTC | 1h 45m |
| 2026-06-28 | QNT5571 | - | Jun 28, 13:55 UTC | Jun 29, 06:50 UTC | 16h 55m |
| 2026-06-28 | QNT5571 | - | Jun 28, 09:45 UTC | Jun 28, 12:19 UTC | 2h 35m |
| 2026-06-27 | QNT5572 | - | Jun 27, 10:05 UTC | Jun 28, 10:00 UTC | 23h 55m |
| 2026-06-27 | QNT5572 | - | Jun 27, 08:49 UTC | Jun 27, 10:40 UTC | 1h 50m |
| 2026-06-27 | QNT5571 | - | Jun 27, 04:09 UTC | Jun 27, 06:44 UTC | 2h 35m |
| 2026-06-25 | QNT5572 | - | Jun 25, 08:45 UTC | Jun 25, 10:35 UTC | 1h 50m |
| 2026-06-25 | QNT5571 | - | Jun 25, 03:59 UTC | Jun 25, 06:40 UTC | 2h 40m |
| 2026-06-22 | QNT862 | - | Jun 22, 21:59 UTC | Jun 23, 06:59 UTC | 9h 0m |
| 2026-06-22 | QNT862 | - | Jun 22, 08:10 UTC | Jun 23, 06:59 UTC | 22h 50m |
| 2026-06-21 | QNT576 | - | Jun 21, 13:20 UTC | Jun 22, 06:39 UTC | 17h 20m |
| 2026-06-21 | QNT575 | - | Jun 21, 10:19 UTC | Jun 21, 10:44 UTC | 25m |
| 2026-06-20 | QNT576 | - | Jun 20, 23:19 UTC | Jun 21, 09:49 UTC | 10h 30m |
| 2026-06-20 | QNT575 | - | Jun 20, 21:10 UTC | Jun 20, 21:25 UTC | 15m |
| 2026-06-20 | QNT575 | - | Jun 20, 08:49 UTC | Jun 20, 20:14 UTC | 11h 25m |
| 2026-06-20 | QNT5571 | - | Jun 20, 04:24 UTC | Jun 20, 07:00 UTC | 2h 35m |
| 2026-06-18 | QNT5572 | - | Jun 18, 09:10 UTC | Jun 18, 10:40 UTC | 1h 30m |
| 2026-06-17 | QNT5571 | - | Jun 17, 12:50 UTC | Jun 18, 06:35 UTC | 17h 45m |
| 2026-06-17 | QNT575 | - | Jun 17, 08:20 UTC | Jun 17, 10:50 UTC | 2h 30m |
| 2026-06-15 | QNT862 | - | Jun 15, 21:35 UTC | Jun 16, 06:15 UTC | 8h 40m |
| 2026-06-15 | QNT862 | - | Jun 15, 10:05 UTC | Jun 16, 06:15 UTC | 20h 10m |
| 2026-06-15 | QNT862 | - | Jun 15, 08:25 UTC | Jun 16, 06:15 UTC | 21h 50m |
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 UK33020 page for operator, model, and routing details .