sensors Mode-S transponder
06A1D9
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-CGU · GULFSTREAM G650
- Hex
- 06A1D9
- Octal
- 01520731
- Decimal
- 434,649
- Country
- QA
- Tail
- A7-CGU
- Type
- GLF6
- Flights observed
- 42
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 2d ago
Last known position
Country allocation
The ICAO 24-bit address 06A1D9 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 20 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| QQE792 | - | 4 | 2026-06-02 |
| QQE773 | - | 4 | 2026-05-21 |
| QQE908 | - | 3 | 2026-06-04 |
| QQE903 | - | 3 | 2026-05-03 |
| QQE798 | - | 3 | 2026-05-11 |
| QQE726 | - | 3 | 2026-04-30 |
| QQE503 | - | 3 | 2026-05-23 |
| QQE214 | - | 3 | 2026-04-13 |
| QQE901 | - | 2 | 2026-04-22 |
| QQE797 | - | 2 | 2026-05-19 |
| QQE741 | - | 2 | 2026-05-06 |
| QQE327 | - | 2 | 2026-05-27 |
| QQE790 | - | 1 | 2026-05-09 |
| QQE761 | - | 1 | 2026-05-25 |
| QQE729 | - | 1 | 2026-05-15 |
| QQE720 | - | 1 | 2026-05-01 |
| QQE274 | - | 1 | 2026-05-21 |
| QQE230 | - | 1 | 2026-05-16 |
| QQE216 | - | 1 | 2026-05-12 |
| QQE104 | - | 1 | 2026-06-03 |
Recent flights last 42
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-04 | QQE908 | NCE → LYS | Jun 4, 18:00 UTC | Jun 4, 18:40 UTC | 40m |
| 2026-06-04 | QQE908 | DWC → NCE | Jun 4, 08:50 UTC | Jun 4, 15:20 UTC | 6h 30m |
| 2026-06-03 | QQE908 | DIA → DIA | Jun 3, 13:30 UTC | Jun 3, 13:50 UTC | 20m |
| 2026-06-03 | QQE104 | DIA → DIA | Jun 3, 08:25 UTC | Jun 3, 11:15 UTC | 2h 50m |
| 2026-06-02 | QQE792 | - | Jun 2, 08:15 UTC | Jun 2, 12:55 UTC | 4h 40m |
| 2026-05-31 | QQE792 | - | May 31, 20:35 UTC | May 31, 22:30 UTC | 1h 55m |
| 2026-05-30 | QQE792 | - | May 30, 09:15 UTC | May 30, 09:55 UTC | 40m |
| 2026-05-30 | QQE792 | - | May 30, 01:45 UTC | May 30, 07:45 UTC | 6h 0m |
| 2026-05-27 | QQE327 | - | May 27, 10:35 UTC | May 27, 12:45 UTC | 2h 10m |
| 2026-05-27 | QQE327 | BCN → NCE | May 27, 08:20 UTC | May 27, 09:15 UTC | 55m |
| 2026-05-25 | QQE761 | - | May 25, 08:10 UTC | May 25, 15:35 UTC | 7h 25m |
| 2026-05-23 | QQE503 | - | May 23, 00:05 UTC | May 23, 10:15 UTC | 10h 9m |
| 2026-05-22 | QQE503 | TEB → BFI | May 22, 17:45 UTC | May 22, 22:40 UTC | 4h 55m |
| 2026-05-22 | QQE503 | IAD → TEB | May 22, 14:45 UTC | May 22, 15:35 UTC | 50m |
| 2026-05-21 | QQE274 | - | May 21, 14:15 UTC | May 21, 22:35 UTC | 8h 20m |
| 2026-05-21 | QQE773 | - | May 21, 10:50 UTC | May 21, 12:00 UTC | 1h 10m |
| 2026-05-19 | QQE797 | NCE → LBG | May 19, 17:55 UTC | May 19, 19:05 UTC | 1h 10m |
| 2026-05-19 | QQE797 | - | May 19, 14:05 UTC | May 19, 16:10 UTC | 2h 5m |
| 2026-05-17 | QQE773 | - | May 17, 14:50 UTC | May 17, 18:40 UTC | 3h 50m |
| 2026-05-17 | QQE773 | - | May 17, 13:15 UTC | May 17, 14:45 UTC | 1h 30m |
| 2026-05-17 | QQE773 | YYZ → HPN | May 17, 10:55 UTC | May 17, 11:50 UTC | 55m |
| 2026-05-16 | QQE230 | ZRH → YYZ | May 16, 05:35 UTC | May 16, 13:21 UTC | 7h 46m |
| 2026-05-15 | QQE729 | - | May 15, 10:35 UTC | May 15, 14:30 UTC | 3h 55m |
| 2026-05-12 | QQE216 | - | May 12, 17:45 UTC | May 13, 05:55 UTC | 12h 10m |
| 2026-05-11 | QQE798 | - | May 11, 02:05 UTC | May 11, 09:20 UTC | 7h 15m |
| 2026-05-09 | QQE798 | - | May 9, 20:15 UTC | May 10, 04:04 UTC | 7h 50m |
| 2026-05-09 | QQE790 | - | May 9, 03:10 UTC | May 9, 05:20 UTC | 2h 10m |
| 2026-05-08 | QQE798 | LBG → IAD | May 8, 03:30 UTC | May 8, 11:09 UTC | 7h 40m |
| 2026-05-06 | QQE741 | LIS → LBG | May 6, 16:05 UTC | May 6, 18:05 UTC | 1h 59m |
| 2026-05-06 | QQE741 | - | May 6, 08:55 UTC | May 6, 14:05 UTC | 5h 10m |
| 2026-05-03 | QQE903 | - | May 3, 19:00 UTC | May 3, 19:30 UTC | 30m |
| 2026-05-02 | QQE903 | - | May 2, 22:20 UTC | May 3, 19:30 UTC | 21h 9m |
| 2026-05-02 | QQE903 | VIE → DIA | May 2, 21:15 UTC | May 3, 19:30 UTC | 22h 14m |
| 2026-05-01 | QQE720 | DWC → VIE | May 1, 18:40 UTC | May 2, 01:20 UTC | 6h 40m |
| 2026-04-30 | QQE726 | - | Apr 30, 10:00 UTC | Apr 30, 14:20 UTC | 4h 20m |
| 2026-04-26 | QQE726 | - | Apr 26, 09:00 UTC | Apr 26, 14:05 UTC | 5h 4m |
| 2026-04-26 | QQE726 | - | Apr 26, 05:30 UTC | Apr 26, 06:15 UTC | 45m |
| 2026-04-22 | QQE901 | - | Apr 22, 12:30 UTC | Apr 22, 18:00 UTC | 5h 30m |
| 2026-04-22 | QQE901 | PRG → GVA | Apr 22, 09:25 UTC | Apr 22, 10:45 UTC | 1h 20m |
| 2026-04-13 | QQE214 | - | Apr 13, 08:20 UTC | Apr 13, 08:55 UTC | 35m |
| 2026-04-13 | QQE214 | - | Apr 13, 07:55 UTC | Apr 13, 08:55 UTC | 1h 0m |
| 2026-04-13 | QQE214 | - | Apr 13, 06:35 UTC | Apr 13, 08:15 UTC | 1h 40m |
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-CGU page for operator, model, and routing details .