sensors Mode-S transponder
06A0DD
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-BFD · BOEING 777-200LR
- Hex
- 06A0DD
- Octal
- 01520335
- Decimal
- 434,397
- Country
- QA
- Tail
- A7-BFD
- Type
- B77L
- Flights observed
- 148
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 58m ago
Last known position
Country allocation
The ICAO 24-bit address 06A0DD 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 |
|---|---|---|---|
| QTR8945 | Qatar Airways | 9 | 2026-05-26 |
| QTR8236 | Qatar Airways | 9 | 2026-05-27 |
| QTR8944 | Qatar Airways | 8 | 2026-05-25 |
| QTR8356 | Qatar Airways | 7 | 2026-04-27 |
| QTR19M | Qatar Airways | 7 | 2026-05-17 |
| QTR8406 | Qatar Airways | 5 | 2026-05-16 |
| QTR8089 | Qatar Airways | 4 | 2026-05-24 |
| QTR8963 | Qatar Airways | 3 | 2026-05-16 |
| QTR8962 | Qatar Airways | 3 | 2026-05-15 |
| QTR8912 | Qatar Airways | 3 | 2026-05-28 |
| QTR8420 | Qatar Airways | 3 | 2026-05-29 |
| QTR8410 | Qatar Airways | 3 | 2026-04-16 |
| QTR8407 | Qatar Airways | 3 | 2026-05-16 |
| QTR8240 | Qatar Airways | 3 | 2026-04-17 |
| QTR8235 | Qatar Airways | 3 | 2026-05-26 |
| QTR8088 | Qatar Airways | 3 | 2026-05-23 |
| QTR8985 | Qatar Airways | 2 | 2026-04-25 |
| QTR8984 | Qatar Airways | 2 | 2026-04-25 |
| QTR8489 | Qatar Airways | 2 | 2026-04-23 |
| QTR8479 | Qatar Airways | 2 | 2026-04-22 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | QTR8246 | MST → DOH | May 30, 16:15 UTC | May 30, 16:50 UTC | 35m |
| 2026-05-29 | QTR72J | ORD → DOH | May 29, 19:50 UTC | May 30, 14:00 UTC | 18h 10m |
| 2026-05-29 | QTR8420 | DOH → MCT | May 29, 16:50 UTC | May 29, 17:15 UTC | 25m |
| 2026-05-28 | QTR8420 | DOH → MCT | May 28, 21:25 UTC | May 29, 14:50 UTC | 17h 25m |
| 2026-05-28 | QTR8420 | DOH → MCT | May 28, 15:25 UTC | May 29, 14:50 UTC | 23h 25m |
| 2026-05-28 | QTR8912 | DOH → MFM | May 28, 06:25 UTC | May 28, 09:45 UTC | 3h 20m |
| 2026-05-27 | QTR8236 | LGG → BSL | May 27, 19:35 UTC | May 28, 01:10 UTC | 5h 35m |
| 2026-05-27 | QTR8236 | LGG → BSL | May 27, 16:30 UTC | May 27, 17:00 UTC | 30m |
| 2026-05-26 | QTR8235 | DOH → LGG | May 26, 23:05 UTC | May 27, 14:05 UTC | 15h 1m |
| 2026-05-26 | QTR8945 | BHX → DUB | May 26, 21:14 UTC | May 26, 21:29 UTC | 15m |
| 2026-05-25 | QTR8944 | DOH → SZX | May 25, 21:19 UTC | May 26, 16:00 UTC | 18h 40m |
| 2026-05-25 | QTR8944 | DOH → SZX | May 25, 19:20 UTC | May 26, 16:00 UTC | 20h 40m |
| 2026-05-25 | QTR8954 | DOH → HAN | May 25, 18:40 UTC | May 26, 16:00 UTC | 21h 19m |
| 2026-05-24 | QTR8089 | MAD → MRS | May 24, 23:10 UTC | May 25, 04:55 UTC | 5h 45m |
| 2026-05-24 | QTR8089 | MAD → MRS | May 24, 12:05 UTC | May 24, 20:10 UTC | 8h 5m |
| 2026-05-23 | QTR8089 | MAD → MRS | May 23, 23:20 UTC | May 24, 20:10 UTC | 20h 50m |
| 2026-05-23 | QTR8089 | MAD → MRS | May 23, 21:20 UTC | May 24, 20:10 UTC | 22h 50m |
| 2026-05-23 | QTR8088 | ALA → HKG | May 23, 19:20 UTC | May 24, 19:15 UTC | 23h 55m |
| 2026-05-23 | QTR8088 | ALA → HKG | May 23, 18:50 UTC | May 24, 12:05 UTC | 17h 15m |
| 2026-05-22 | QTR8088 | ALA → HKG | May 22, 23:40 UTC | May 23, 16:05 UTC | 16h 24m |
| 2026-05-22 | QTR12B | ORD → DOH | May 22, 12:15 UTC | May 22, 18:10 UTC | 5h 55m |
| 2026-05-21 | QTR99E | DOH → AMS | May 21, 15:40 UTC | May 22, 07:45 UTC | 16h 5m |
| 2026-05-21 | QTR8102 | AMS → DOH | May 21, 05:40 UTC | May 21, 12:35 UTC | 6h 55m |
| 2026-05-20 | QTR8101 | AMS → ORD | May 20, 18:15 UTC | May 21, 02:55 UTC | 8h 40m |
| 2026-05-20 | QTR8101 | AMS → ORD | May 20, 12:25 UTC | May 20, 15:15 UTC | 2h 50m |
| 2026-05-19 | QTR8075 | NBO → DOH | May 19, 14:25 UTC | May 20, 03:10 UTC | 12h 45m |
| 2026-05-19 | QTR8074 | MAD → LGG | May 19, 02:25 UTC | May 19, 11:25 UTC | 9h 0m |
| 2026-05-18 | QTR8074 | MAD → LGG | May 18, 09:05 UTC | May 19, 00:20 UTC | 15h 14m |
| 2026-05-17 | QTR19M | PHL → DOH | May 17, 21:20 UTC | May 18, 21:15 UTC | 23h 54m |
| 2026-05-17 | QTR19M | PHL → DOH | May 17, 19:20 UTC | May 18, 18:55 UTC | 23h 34m |
| 2026-05-17 | QTR19M | PHL → DOH | May 17, 19:01 UTC | May 18, 13:55 UTC | 18h 55m |
| 2026-05-17 | QTR19M | PHL → DOH | May 17, 15:55 UTC | May 17, 16:50 UTC | 55m |
| 2026-05-16 | QTR72B | - | May 16, 20:50 UTC | May 17, 13:15 UTC | 16h 25m |
| 2026-05-16 | QTR8407 | HKG → DOH | May 16, 18:50 UTC | May 16, 19:00 UTC | 10m |
| 2026-05-16 | QTR8406 | SIN → HKG | May 16, 15:45 UTC | May 16, 16:05 UTC | 20m |
| 2026-05-16 | QTR8963 | PVG → DOH | May 16, 00:00 UTC | May 16, 13:55 UTC | 13h 56m |
| 2026-05-15 | QTR8963 | PVG → DOH | May 15, 13:20 UTC | May 16, 13:15 UTC | 23h 55m |
| 2026-05-15 | QTR8963 | PVG → DOH | May 15, 11:20 UTC | May 16, 11:16 UTC | 23h 55m |
| 2026-05-15 | QTR8962 | DOH → PVG | May 15, 10:55 UTC | May 16, 03:20 UTC | 16h 24m |
| 2026-05-14 | QTR8962 | DOH → PVG | May 14, 21:45 UTC | May 15, 14:10 UTC | 16h 25m |
| 2026-05-14 | QTR8962 | DOH → PVG | May 14, 18:15 UTC | May 15, 14:10 UTC | 19h 55m |
| 2026-05-14 | QTR8912 | DOH → MFM | May 14, 07:55 UTC | May 15, 00:15 UTC | 16h 20m |
| 2026-05-13 | QTR8912 | DOH → MFM | May 13, 23:20 UTC | May 14, 21:45 UTC | 22h 25m |
| 2026-05-13 | QTR8236 | LGG → BSL | May 13, 21:20 UTC | May 14, 18:25 UTC | 21h 5m |
| 2026-05-13 | QTR8236 | LGG → BSL | May 13, 21:10 UTC | May 14, 18:25 UTC | 21h 15m |
| 2026-05-13 | QTR8236 | LGG → BSL | May 13, 16:55 UTC | May 13, 18:30 UTC | 1h 35m |
| 2026-05-12 | QTR8945 | BHX → DUB | May 12, 20:55 UTC | May 12, 21:10 UTC | 15m |
| 2026-05-12 | QTR8944 | DOH → SZX | May 12, 05:45 UTC | May 12, 15:50 UTC | 10h 5m |
| 2026-05-11 | QTR8358 | LHR → MXP | May 11, 22:05 UTC | May 11, 22:35 UTC | 29m |
| 2026-05-11 | QTR8435 | GRU → SDU | May 11, 02:25 UTC | May 11, 17:15 UTC | 14h 51m |
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-BFD page for operator, model, and routing details .