sensors Mode-S transponder
06A1C7
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-CGB · GULFSTREAM G650
- Hex
- 06A1C7
- Octal
- 01520707
- Decimal
- 434,631
- Country
- QA
- Tail
- A7-CGB
- Type
- GLF6
- Flights observed
- 30
- Distinct callsigns
- 12
- Country
- QA
- Last broadcast
- 3h ago
Last known position
Country allocation
The ICAO 24-bit address 06A1C7 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 12 distinct
Recent flights last 30
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | QQE213 | - | Jun 2, 16:15 UTC | Jun 2, 17:45 UTC | 1h 30m |
| 2026-05-31 | QQE232 | PRG → SLC | May 31, 12:55 UTC | May 31, 22:35 UTC | 9h 40m |
| 2026-05-30 | QQE232 | - | May 30, 08:25 UTC | May 30, 09:30 UTC | 1h 5m |
| 2026-05-24 | QQE794 | - | May 24, 19:40 UTC | May 25, 06:35 UTC | 10h 55m |
| 2026-05-24 | QQE794 | - | May 24, 13:50 UTC | May 24, 15:45 UTC | 1h 55m |
| 2026-05-22 | QQE513 | - | May 22, 03:55 UTC | May 22, 04:30 UTC | 35m |
| 2026-05-18 | QQE513 | LGW → HND | May 18, 08:15 UTC | May 18, 19:20 UTC | 11h 4m |
| 2026-05-17 | QQE513 | - | May 17, 16:30 UTC | May 17, 16:55 UTC | 25m |
| 2026-05-16 | QQE733 | - | May 16, 06:35 UTC | May 16, 21:55 UTC | 15h 20m |
| 2026-05-15 | QQE733 | - | May 15, 11:25 UTC | May 15, 11:45 UTC | 20m |
| 2026-05-13 | QQE570 | - | May 13, 19:35 UTC | May 13, 21:50 UTC | 2h 15m |
| 2026-05-10 | QQE723 | - | May 10, 20:54 UTC | May 11, 07:10 UTC | 10h 15m |
| 2026-05-09 | QQE723 | - | May 9, 19:10 UTC | May 9, 19:30 UTC | 20m |
| 2026-05-08 | QQE252 | IAD → MIA | May 8, 22:45 UTC | May 9, 00:55 UTC | 2h 10m |
| 2026-05-08 | QQE252 | - | May 8, 12:20 UTC | May 8, 14:20 UTC | 2h 0m |
| 2026-05-06 | QQE252 | SBA → MIA | May 6, 19:45 UTC | May 6, 23:55 UTC | 4h 10m |
| 2026-05-05 | QQE251 | BUR → SBA | May 5, 23:10 UTC | May 5, 23:35 UTC | 25m |
| 2026-05-05 | QQE251 | - | May 5, 16:20 UTC | May 5, 21:40 UTC | 5h 20m |
| 2026-05-01 | QQE251 | - | May 1, 06:25 UTC | May 1, 11:25 UTC | 5h 0m |
| 2026-04-26 | QQE252 | - | Apr 26, 18:30 UTC | Apr 27, 00:10 UTC | 5h 40m |
| 2026-04-23 | QQE251 | - | Apr 23, 10:20 UTC | Apr 24, 01:30 UTC | 15h 9m |
| 2026-04-22 | QQE252 | - | Apr 22, 08:15 UTC | Apr 22, 16:30 UTC | 8h 15m |
| 2026-04-19 | QQE707 | - | Apr 19, 02:55 UTC | Apr 19, 10:00 UTC | 7h 5m |
| 2026-04-18 | QQE918 | - | Apr 18, 11:10 UTC | Apr 18, 14:10 UTC | 3h 0m |
| 2026-04-18 | QQE918 | - | Apr 18, 07:25 UTC | Apr 18, 08:10 UTC | 45m |
| 2026-04-18 | QQE918 | - | Apr 18, 05:45 UTC | Apr 18, 08:10 UTC | 2h 25m |
| 2026-04-15 | QQE753 | - | Apr 15, 05:00 UTC | Apr 15, 05:50 UTC | 50m |
| 2026-04-15 | QQE753 | - | Apr 15, 03:05 UTC | Apr 15, 04:50 UTC | 1h 45m |
| 2026-04-13 | QQE753 | - | Apr 13, 15:50 UTC | Apr 13, 16:15 UTC | 25m |
| 2026-04-13 | QQE753 | - | Apr 13, 12:55 UTC | Apr 13, 16:15 UTC | 3h 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-CGB page for operator, model, and routing details .