sensors Mode-S transponder
06A1D2
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-CGN · GULFSTREAM G650
- Hex
- 06A1D2
- Octal
- 01520722
- Decimal
- 434,642
- Country
- QA
- Tail
- A7-CGN
- Type
- GLF6
- Flights observed
- 36
- Distinct callsigns
- 14
- Country
- QA
- Last broadcast
- 14h ago
Last known position
Country allocation
The ICAO 24-bit address 06A1D2 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 |
|---|---|---|---|
| QQE516 | - | 7 | 2026-06-07 |
| QQE507 | - | 4 | 2026-06-09 |
| QQE912 | - | 3 | 2026-06-17 |
| QQE783 | - | 3 | 2026-05-21 |
| QQE229 | - | 3 | 2026-06-30 |
| QQE743 | - | 2 | 2026-05-12 |
| QQE725 | - | 2 | 2026-05-15 |
| QQE525 | - | 2 | 2026-05-16 |
| QQE521 | - | 2 | 2026-05-19 |
| QQE508 | - | 2 | 2026-06-27 |
| QQE246 | - | 2 | 2026-06-21 |
| QQE243 | - | 2 | 2026-06-25 |
| QQE789 | - | 1 | 2026-06-20 |
| QQE741 | - | 1 | 2026-06-19 |
Recent flights last 36
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-30 | QQE229 | - | Jun 30, 03:55 UTC | Jun 30, 04:25 UTC | 30m |
| 2026-06-29 | QQE229 | - | Jun 29, 18:14 UTC | Jun 29, 21:50 UTC | 3h 35m |
| 2026-06-28 | QQE229 | - | Jun 28, 19:09 UTC | Jun 28, 22:34 UTC | 3h 25m |
| 2026-06-27 | QQE508 | - | Jun 27, 16:10 UTC | Jun 28, 00:25 UTC | 8h 15m |
| 2026-06-27 | QQE508 | - | Jun 27, 02:09 UTC | Jun 27, 14:54 UTC | 12h 45m |
| 2026-06-25 | QQE243 | - | Jun 25, 11:19 UTC | Jun 25, 12:04 UTC | 45m |
| 2026-06-23 | QQE243 | - | Jun 23, 08:25 UTC | Jun 23, 14:49 UTC | 6h 25m |
| 2026-06-21 | QQE246 | VIE → LTN | Jun 21, 15:40 UTC | Jun 21, 17:39 UTC | 2h 0m |
| 2026-06-21 | QQE246 | DIA → VIE | Jun 21, 06:24 UTC | Jun 21, 13:54 UTC | 7h 30m |
| 2026-06-20 | QQE789 | LBG → DIA | Jun 20, 14:24 UTC | Jun 20, 20:55 UTC | 6h 30m |
| 2026-06-19 | QQE741 | - | Jun 19, 14:49 UTC | Jun 19, 19:09 UTC | 4h 20m |
| 2026-06-17 | QQE912 | - | Jun 17, 13:20 UTC | Jun 17, 17:55 UTC | 4h 35m |
| 2026-06-16 | QQE912 | - | Jun 16, 13:25 UTC | Jun 16, 16:15 UTC | 2h 50m |
| 2026-06-16 | QQE912 | - | Jun 16, 10:15 UTC | Jun 16, 11:55 UTC | 1h 40m |
| 2026-06-09 | QQE507 | - | Jun 9, 09:10 UTC | Jun 9, 09:25 UTC | 15m |
| 2026-06-08 | QQE507 | - | Jun 8, 09:20 UTC | Jun 9, 04:20 UTC | 19h 0m |
| 2026-06-08 | QQE507 | - | Jun 8, 06:35 UTC | Jun 9, 04:20 UTC | 21h 45m |
| 2026-06-08 | QQE507 | - | Jun 8, 06:05 UTC | Jun 9, 04:20 UTC | 22h 15m |
| 2026-06-07 | QQE516 | - | Jun 7, 05:05 UTC | Jun 7, 11:10 UTC | 6h 5m |
| 2026-06-04 | QQE516 | SFO → HND | Jun 4, 19:50 UTC | Jun 5, 05:45 UTC | 9h 55m |
| 2026-06-02 | QQE516 | - | Jun 2, 14:50 UTC | Jun 3, 01:20 UTC | 10h 30m |
| 2026-06-01 | QQE516 | - | Jun 1, 09:00 UTC | Jun 1, 11:30 UTC | 2h 30m |
| 2026-05-28 | QQE516 | - | May 28, 16:55 UTC | May 28, 17:50 UTC | 55m |
| 2026-05-28 | QQE516 | - | May 28, 02:50 UTC | May 28, 15:00 UTC | 12h 10m |
| 2026-05-26 | QQE516 | - | May 26, 02:39 UTC | May 26, 05:40 UTC | 3h 0m |
| 2026-05-21 | QQE783 | - | May 21, 13:30 UTC | May 21, 14:00 UTC | 30m |
| 2026-05-21 | QQE783 | - | May 21, 11:10 UTC | May 21, 11:25 UTC | 15m |
| 2026-05-21 | QQE783 | - | May 21, 06:05 UTC | May 21, 08:05 UTC | 2h 0m |
| 2026-05-19 | QQE521 | - | May 19, 09:20 UTC | May 19, 13:20 UTC | 4h 0m |
| 2026-05-19 | QQE521 | - | May 19, 04:10 UTC | May 19, 04:50 UTC | 40m |
| 2026-05-16 | QQE525 | - | May 16, 18:55 UTC | May 17, 02:10 UTC | 7h 15m |
| 2026-05-16 | QQE525 | - | May 16, 14:05 UTC | May 16, 17:01 UTC | 2h 55m |
| 2026-05-15 | QQE725 | JFK → CPH | May 15, 12:20 UTC | May 15, 19:05 UTC | 6h 44m |
| 2026-05-14 | QQE725 | - | May 14, 00:40 UTC | May 14, 08:35 UTC | 7h 55m |
| 2026-05-12 | QQE743 | - | May 12, 18:05 UTC | May 12, 20:40 UTC | 2h 35m |
| 2026-05-12 | QQE743 | - | May 12, 14:55 UTC | May 12, 16:25 UTC | 1h 30m |
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-CGN page for operator, model, and routing details .