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
- 77
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 1d 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 |
|---|---|---|---|
| QQE766 | - | 6 | 2026-06-23 |
| QQE269 | - | 6 | 2026-07-20 |
| QQE792 | - | 4 | 2026-06-02 |
| QQE773 | - | 4 | 2026-05-21 |
| QQE217 | - | 4 | 2026-07-06 |
| QQE908 | - | 3 | 2026-06-04 |
| QQE903 | - | 3 | 2026-05-03 |
| QQE849 | - | 3 | 2026-06-12 |
| QQE798 | - | 3 | 2026-05-11 |
| QQE726 | - | 3 | 2026-04-30 |
| QQE713 | - | 3 | 2026-07-11 |
| QQE655 | - | 3 | 2026-06-19 |
| 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 |
| QQE740 | - | 2 | 2026-07-04 |
| QQE327 | - | 2 | 2026-05-27 |
| QQE310 | - | 2 | 2026-06-10 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-20 | QQE269 | - | Jul 20, 15:05 UTC | Jul 20, 15:55 UTC | 50m |
| 2026-07-20 | QQE269 | - | Jul 20, 12:40 UTC | Jul 20, 13:05 UTC | 25m |
| 2026-07-18 | QQE269 | - | Jul 18, 18:35 UTC | Jul 18, 23:15 UTC | 4h 40m |
| 2026-07-15 | QQE269 | LTN → NUQ | Jul 15, 07:10 UTC | Jul 15, 17:25 UTC | 10h 15m |
| 2026-07-14 | QQE269 | - | Jul 14, 06:05 UTC | Jul 14, 11:10 UTC | 5h 5m |
| 2026-07-14 | QQE269 | - | Jul 14, 04:30 UTC | Jul 14, 06:00 UTC | 1h 30m |
| 2026-07-12 | QQE290 | - | Jul 12, 15:25 UTC | Jul 12, 22:20 UTC | 6h 55m |
| 2026-07-11 | QQE713 | - | Jul 11, 12:55 UTC | Jul 11, 14:45 UTC | 1h 50m |
| 2026-07-11 | QQE713 | - | Jul 11, 09:05 UTC | Jul 11, 11:05 UTC | 2h 0m |
| 2026-07-11 | QQE713 | - | Jul 11, 00:20 UTC | Jul 11, 09:00 UTC | 8h 40m |
| 2026-07-06 | QQE217 | - | Jul 6, 15:35 UTC | Jul 7, 01:50 UTC | 10h 15m |
| 2026-07-06 | QQE217 | - | Jul 6, 10:15 UTC | Jul 6, 14:00 UTC | 3h 45m |
| 2026-07-06 | QQE217 | - | Jul 6, 07:45 UTC | Jul 6, 10:10 UTC | 2h 25m |
| 2026-07-05 | QQE217 | - | Jul 5, 11:05 UTC | Jul 5, 15:20 UTC | 4h 15m |
| 2026-07-04 | QQE740 | - | Jul 4, 07:55 UTC | Jul 4, 11:50 UTC | 3h 55m |
| 2026-07-04 | QQE740 | DIA → DWC | Jul 4, 05:15 UTC | Jul 4, 06:10 UTC | 55m |
| 2026-06-23 | QQE766 | - | Jun 23, 10:19 UTC | Jun 23, 13:55 UTC | 3h 35m |
| 2026-06-22 | QQE766 | - | Jun 22, 03:45 UTC | Jun 22, 04:30 UTC | 45m |
| 2026-06-21 | QQE766 | - | Jun 21, 23:59 UTC | Jun 22, 02:30 UTC | 2h 30m |
| 2026-06-21 | QQE766 | - | Jun 21, 16:30 UTC | Jun 21, 16:44 UTC | 15m |
| 2026-06-20 | QQE766 | - | Jun 20, 22:14 UTC | Jun 20, 22:35 UTC | 20m |
| 2026-06-20 | QQE766 | - | Jun 20, 15:34 UTC | Jun 20, 16:19 UTC | 45m |
| 2026-06-19 | QQE655 | - | Jun 19, 08:54 UTC | Jun 19, 12:59 UTC | 4h 5m |
| 2026-06-17 | QQE655 | - | Jun 17, 10:25 UTC | Jun 17, 13:25 UTC | 3h 0m |
| 2026-06-16 | QQE655 | - | Jun 16, 06:50 UTC | Jun 16, 12:50 UTC | 6h 0m |
| 2026-06-15 | QQE207 | - | Jun 15, 00:49 UTC | Jun 15, 07:15 UTC | 6h 25m |
| 2026-06-14 | QQE207 | - | Jun 14, 20:35 UTC | Jun 14, 23:20 UTC | 2h 45m |
| 2026-06-13 | QQE248 | - | Jun 13, 10:00 UTC | Jun 13, 10:55 UTC | 55m |
| 2026-06-13 | QQE248 | - | Jun 13, 07:50 UTC | Jun 13, 08:35 UTC | 45m |
| 2026-06-12 | QQE849 | CPT → LTN | Jun 12, 09:30 UTC | Jun 12, 21:20 UTC | 11h 50m |
| 2026-06-10 | QQE849 | - | Jun 10, 20:25 UTC | Jun 11, 07:15 UTC | 10h 50m |
| 2026-06-10 | QQE849 | - | Jun 10, 16:35 UTC | Jun 10, 19:10 UTC | 2h 35m |
| 2026-06-10 | QQE310 | - | Jun 10, 00:15 UTC | Jun 10, 08:50 UTC | 8h 35m |
| 2026-06-09 | QQE310 | - | Jun 9, 21:25 UTC | Jun 9, 22:30 UTC | 1h 5m |
| 2026-06-08 | QQE259 | LYS → IAD | Jun 8, 02:20 UTC | Jun 8, 14:50 UTC | 12h 30m |
| 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 |
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 .