sensors Mode-S transponder
06A1DE
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-CHE · GULFSTREAM G700
- Hex
- 06A1DE
- Octal
- 01520736
- Decimal
- 434,654
- Country
- QA
- Tail
- A7-CHE
- Type
- GA7C
- Flights observed
- 41
- Distinct callsigns
- 14
- Country
- QA
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 06A1DE 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| QQE511 | - | 8 | 2026-04-25 |
| QQE775 | - | 5 | 2026-04-16 |
| QQE203 | - | 5 | 2026-05-12 |
| QQE767 | - | 4 | 2026-05-04 |
| QQE518 | - | 4 | 2026-04-22 |
| QQE217 | - | 3 | 2026-05-15 |
| QQE108 | - | 3 | 2026-05-26 |
| QQE797 | - | 2 | 2026-05-22 |
| QQE734 | - | 2 | 2026-05-21 |
| QQE733 | - | 1 | 2026-05-03 |
| QQE732 | - | 1 | 2026-05-02 |
| QQE520 | - | 1 | 2026-05-23 |
| QQE219 | - | 1 | 2026-05-20 |
| QQE201 | - | 1 | 2026-06-02 |
Recent flights last 41
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-02 | QQE201 | HKG → HND | Jun 2, 10:10 UTC | Jun 2, 14:20 UTC | 4h 10m |
| 2026-05-26 | QQE108 | - | May 26, 19:45 UTC | May 26, 20:09 UTC | 25m |
| 2026-05-26 | QQE108 | - | May 26, 13:00 UTC | May 26, 18:05 UTC | 5h 5m |
| 2026-05-26 | QQE108 | - | May 26, 02:15 UTC | May 26, 11:39 UTC | 9h 25m |
| 2026-05-23 | QQE520 | - | May 23, 21:30 UTC | May 24, 05:15 UTC | 7h 45m |
| 2026-05-22 | QQE797 | - | May 22, 11:45 UTC | May 22, 17:25 UTC | 5h 40m |
| 2026-05-22 | QQE797 | LTN → LBG | May 22, 07:50 UTC | May 22, 08:40 UTC | 50m |
| 2026-05-21 | QQE734 | VIE → LTN | May 21, 15:15 UTC | May 21, 17:05 UTC | 1h 50m |
| 2026-05-21 | QQE734 | - | May 21, 12:10 UTC | May 21, 13:45 UTC | 1h 35m |
| 2026-05-20 | QQE219 | - | May 20, 00:45 UTC | May 20, 12:50 UTC | 12h 6m |
| 2026-05-15 | QQE217 | - | May 15, 00:20 UTC | May 15, 07:00 UTC | 6h 40m |
| 2026-05-13 | QQE217 | - | May 13, 11:15 UTC | May 13, 18:15 UTC | 7h 0m |
| 2026-05-13 | QQE217 | TEB → IAD | May 13, 04:40 UTC | May 13, 05:20 UTC | 40m |
| 2026-05-12 | QQE203 | - | May 12, 16:05 UTC | May 13, 03:05 UTC | 11h 0m |
| 2026-05-09 | QQE203 | - | May 9, 00:20 UTC | May 9, 07:40 UTC | 7h 20m |
| 2026-05-06 | QQE203 | - | May 6, 18:35 UTC | May 6, 18:45 UTC | 10m |
| 2026-05-06 | QQE203 | - | May 6, 09:00 UTC | May 6, 16:05 UTC | 7h 5m |
| 2026-05-06 | QQE203 | TEB → ZRH | May 6, 00:50 UTC | May 6, 07:40 UTC | 6h 50m |
| 2026-05-04 | QQE767 | - | May 4, 11:00 UTC | May 4, 20:25 UTC | 9h 26m |
| 2026-05-03 | QQE733 | - | May 3, 14:50 UTC | May 3, 19:05 UTC | 4h 15m |
| 2026-05-02 | QQE732 | - | May 2, 00:50 UTC | May 2, 03:35 UTC | 2h 45m |
| 2026-04-30 | QQE767 | - | Apr 30, 16:45 UTC | Apr 30, 23:25 UTC | 6h 40m |
| 2026-04-30 | QQE767 | - | Apr 30, 11:30 UTC | Apr 30, 11:45 UTC | 15m |
| 2026-04-29 | QQE767 | - | Apr 29, 13:10 UTC | Apr 29, 17:25 UTC | 4h 15m |
| 2026-04-25 | QQE511 | - | Apr 25, 21:50 UTC | Apr 26, 07:55 UTC | 10h 5m |
| 2026-04-25 | QQE511 | - | Apr 25, 09:35 UTC | Apr 26, 07:55 UTC | 22h 20m |
| 2026-04-25 | QQE511 | - | Apr 25, 09:20 UTC | Apr 26, 07:30 UTC | 22h 10m |
| 2026-04-25 | QQE511 | - | Apr 25, 05:35 UTC | Apr 26, 02:55 UTC | 21h 20m |
| 2026-04-25 | QQE511 | - | Apr 25, 05:00 UTC | Apr 26, 02:55 UTC | 21h 55m |
| 2026-04-24 | QQE511 | - | Apr 24, 23:35 UTC | Apr 25, 23:00 UTC | 23h 25m |
| 2026-04-24 | QQE511 | - | Apr 24, 22:35 UTC | Apr 25, 10:25 UTC | 11h 50m |
| 2026-04-23 | QQE511 | HKG → HND | Apr 23, 19:50 UTC | Apr 23, 23:05 UTC | 3h 15m |
| 2026-04-22 | QQE518 | - | Apr 22, 13:40 UTC | Apr 22, 14:00 UTC | 20m |
| 2026-04-22 | QQE518 | - | Apr 22, 10:40 UTC | Apr 22, 12:00 UTC | 1h 20m |
| 2026-04-17 | QQE518 | - | Apr 17, 08:30 UTC | Apr 17, 08:45 UTC | 15m |
| 2026-04-16 | QQE518 | - | Apr 16, 23:50 UTC | Apr 17, 01:00 UTC | 1h 10m |
| 2026-04-16 | QQE775 | - | Apr 16, 11:29 UTC | Apr 16, 12:05 UTC | 35m |
| 2026-04-16 | QQE775 | - | Apr 16, 09:19 UTC | Apr 16, 09:50 UTC | 30m |
| 2026-04-16 | QQE775 | - | Apr 16, 07:09 UTC | Apr 16, 08:35 UTC | 1h 25m |
| 2026-04-16 | QQE775 | - | Apr 16, 06:15 UTC | Apr 16, 07:05 UTC | 50m |
| 2026-04-16 | QQE775 | - | Apr 16, 03:09 UTC | Apr 16, 04:10 UTC | 1h 0m |
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-CHE page for operator, model, and routing details .