sensors Mode-S transponder
06A1C9
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-CGD · GULFSTREAM G650
- Hex
- 06A1C9
- Octal
- 01520711
- Decimal
- 434,633
- Country
- QA
- Tail
- A7-CGD
- Type
- GLF6
- Flights observed
- 46
- Distinct callsigns
- 16
- Country
- QA
- Last broadcast
- 5h ago
Last known position
Country allocation
The ICAO 24-bit address 06A1C9 falls within the block assigned to Qatar (QA) by ICAO Annex 10, Volume III. Every aircraft registered in Qatar 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 16 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| QQE914 | - | 6 | 2026-04-15 |
| QQE983 | - | 5 | 2026-04-28 |
| QQE252 | - | 5 | 2026-05-15 |
| QQE291 | - | 4 | 2026-05-25 |
| QQE917 | - | 3 | 2026-04-16 |
| QQE548 | - | 3 | 2026-05-10 |
| QQE273 | - | 3 | 2026-05-02 |
| QQE245 | - | 3 | 2026-06-01 |
| QQE982 | - | 2 | 2026-04-29 |
| QQE932 | - | 2 | 2026-04-22 |
| QQE751 | - | 2 | 2026-05-27 |
| QQE705 | - | 2 | 2026-05-05 |
| QQE541 | - | 2 | 2026-06-02 |
| QQE517 | - | 2 | 2026-05-17 |
| QQE915 | - | 1 | 2026-05-29 |
| QQE710 | - | 1 | 2026-05-03 |
Recent flights last 46
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | QQE541 | - | Jun 2, 17:30 UTC | Jun 2, 18:00 UTC | 30m |
| 2026-06-02 | QQE541 | - | Jun 2, 07:15 UTC | Jun 2, 11:00 UTC | 3h 45m |
| 2026-06-01 | QQE245 | - | Jun 1, 03:40 UTC | Jun 1, 11:20 UTC | 7h 40m |
| 2026-05-31 | QQE245 | - | May 31, 13:50 UTC | May 31, 14:20 UTC | 30m |
| 2026-05-30 | QQE245 | - | May 30, 21:10 UTC | May 31, 12:10 UTC | 15h 0m |
| 2026-05-29 | QQE915 | - | May 29, 07:25 UTC | May 29, 14:30 UTC | 7h 5m |
| 2026-05-27 | QQE751 | - | May 27, 23:15 UTC | May 28, 11:15 UTC | 12h 0m |
| 2026-05-26 | QQE751 | - | May 26, 09:09 UTC | May 26, 19:25 UTC | 10h 15m |
| 2026-05-25 | QQE291 | - | May 25, 04:15 UTC | May 25, 05:40 UTC | 1h 25m |
| 2026-05-24 | QQE291 | - | May 24, 15:10 UTC | May 24, 15:40 UTC | 30m |
| 2026-05-24 | QQE291 | TEB → YOW | May 24, 11:40 UTC | May 24, 12:40 UTC | 1h 0m |
| 2026-05-22 | QQE291 | HND → TEB | May 22, 05:15 UTC | May 22, 16:50 UTC | 11h 35m |
| 2026-05-17 | QQE517 | LAS → HND | May 17, 19:25 UTC | May 18, 06:35 UTC | 11h 10m |
| 2026-05-16 | QQE517 | - | May 16, 20:05 UTC | May 17, 00:45 UTC | 4h 39m |
| 2026-05-15 | QQE252 | - | May 15, 20:50 UTC | May 15, 22:15 UTC | 1h 25m |
| 2026-05-15 | QQE252 | TEB → FTY | May 15, 15:10 UTC | May 15, 16:50 UTC | 1h 40m |
| 2026-05-14 | QQE252 | - | May 14, 15:01 UTC | May 14, 17:20 UTC | 2h 20m |
| 2026-05-12 | QQE252 | - | May 12, 12:45 UTC | May 12, 22:05 UTC | 9h 20m |
| 2026-05-12 | QQE252 | - | May 12, 05:55 UTC | May 12, 11:05 UTC | 5h 10m |
| 2026-05-10 | QQE548 | - | May 10, 08:50 UTC | May 10, 09:05 UTC | 15m |
| 2026-05-06 | QQE548 | - | May 6, 12:01 UTC | May 6, 12:15 UTC | 15m |
| 2026-05-06 | QQE548 | - | May 6, 10:45 UTC | May 6, 11:05 UTC | 20m |
| 2026-05-05 | QQE705 | - | May 5, 07:05 UTC | May 5, 11:00 UTC | 3h 55m |
| 2026-05-04 | QQE705 | MAN → GVA | May 4, 10:55 UTC | May 4, 12:20 UTC | 1h 25m |
| 2026-05-03 | QQE710 | - | May 3, 12:40 UTC | May 3, 20:05 UTC | 7h 25m |
| 2026-05-02 | QQE273 | - | May 2, 20:25 UTC | May 2, 21:00 UTC | 35m |
| 2026-05-01 | QQE273 | - | May 1, 11:55 UTC | May 1, 21:10 UTC | 9h 15m |
| 2026-05-01 | QQE273 | MAD → GVA | May 1, 08:50 UTC | May 1, 10:05 UTC | 1h 15m |
| 2026-04-29 | QQE982 | - | Apr 29, 20:25 UTC | Apr 29, 21:35 UTC | 1h 10m |
| 2026-04-29 | QQE982 | - | Apr 29, 16:55 UTC | Apr 29, 18:35 UTC | 1h 40m |
| 2026-04-28 | QQE983 | - | Apr 28, 15:15 UTC | Apr 28, 15:55 UTC | 40m |
| 2026-04-28 | QQE983 | - | Apr 28, 12:50 UTC | Apr 28, 13:25 UTC | 35m |
| 2026-04-26 | QQE983 | - | Apr 26, 11:00 UTC | Apr 26, 11:20 UTC | 20m |
| 2026-04-26 | QQE983 | - | Apr 26, 08:40 UTC | Apr 26, 09:15 UTC | 35m |
| 2026-04-22 | QQE983 | - | Apr 22, 23:50 UTC | Apr 23, 00:20 UTC | 30m |
| 2026-04-22 | QQE932 | - | Apr 22, 12:15 UTC | Apr 22, 17:30 UTC | 5h 15m |
| 2026-04-22 | QQE932 | - | Apr 22, 02:40 UTC | Apr 22, 08:55 UTC | 6h 15m |
| 2026-04-16 | QQE917 | - | Apr 16, 00:10 UTC | Apr 16, 01:05 UTC | 55m |
| 2026-04-15 | QQE917 | - | Apr 15, 21:05 UTC | Apr 15, 21:25 UTC | 20m |
| 2026-04-15 | QQE917 | - | Apr 15, 20:25 UTC | Apr 15, 21:00 UTC | 35m |
| 2026-04-15 | QQE914 | - | Apr 15, 00:55 UTC | Apr 15, 01:25 UTC | 30m |
| 2026-04-14 | QQE914 | - | Apr 14, 19:30 UTC | Apr 14, 20:10 UTC | 40m |
| 2026-04-14 | QQE914 | - | Apr 14, 12:50 UTC | Apr 14, 13:10 UTC | 20m |
| 2026-04-14 | QQE914 | - | Apr 14, 10:50 UTC | Apr 14, 12:45 UTC | 1h 55m |
| 2026-04-14 | QQE914 | - | Apr 14, 07:10 UTC | Apr 14, 07:40 UTC | 30m |
| 2026-04-14 | QQE914 | - | Apr 14, 05:15 UTC | Apr 14, 07:10 UTC | 1h 55m |
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 A7-CGD page for operator, model, and routing details .