sensors Mode-S transponder
06A1EA
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-BFM · BOEING 777-200LR
- Hex
- 06A1EA
- Octal
- 01520752
- Decimal
- 434,666
- Country
- QA
- Tail
- A7-BFM
- Type
- B77L
- Flights observed
- 137
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 5h ago
Current position
Country allocation
The ICAO 24-bit address 06A1EA 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 |
|---|---|---|---|
| QTR8160 | Qatar Airways | 10 | 2026-05-23 |
| QTR8358 | Qatar Airways | 8 | 2026-04-19 |
| QTR8356 | Qatar Airways | 6 | 2026-05-29 |
| QTR79U | - | 6 | 2026-05-02 |
| QTR8948 | - | 5 | 2026-04-15 |
| QTR89L | - | 3 | 2026-04-30 |
| QTR8949 | Qatar Airways | 3 | 2026-04-16 |
| QTR8941 | Qatar Airways | 3 | 2026-04-13 |
| QTR8917 | Qatar Airways | 3 | 2026-05-13 |
| QTR8916 | Qatar Airways | 3 | 2026-05-13 |
| QTR8476 | Qatar Airways | 3 | 2026-05-10 |
| QTR8474 | Qatar Airways | 3 | 2026-05-14 |
| QTR8421 | Qatar Airways | 3 | 2026-04-22 |
| QTR8359 | Qatar Airways | 3 | 2026-04-25 |
| QTR8159 | Qatar Airways | 3 | 2026-05-22 |
| QTR47X | - | 3 | 2026-05-01 |
| QTR20X | - | 3 | 2026-04-15 |
| QTR91Y | Qatar Airways | 2 | 2026-05-19 |
| QTR8985 | Qatar Airways | 2 | 2026-04-23 |
| QTR8984 | Qatar Airways | 2 | 2026-04-23 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | QTR8357 | KUL → DOH | May 29, 17:05 UTC | May 29, 19:40 UTC | 2h 35m |
| 2026-05-29 | QTR8357 | KUL → DOH | May 29, 04:55 UTC | May 29, 14:00 UTC | 9h 5m |
| 2026-05-29 | QTR8356 | NRT → HKG | May 29, 00:05 UTC | May 29, 02:15 UTC | 2h 10m |
| 2026-05-28 | QTR8356 | NRT → HKG | May 28, 12:40 UTC | May 28, 20:45 UTC | 8h 5m |
| 2026-05-28 | QTR8356 | NRT → HKG | May 28, 00:05 UTC | May 28, 09:35 UTC | 9h 30m |
| 2026-05-27 | QTR8356 | NRT → HKG | May 27, 20:45 UTC | May 27, 21:05 UTC | 20m |
| 2026-05-27 | QTR8356 | NRT → HKG | May 27, 17:40 UTC | May 27, 17:55 UTC | 15m |
| 2026-05-27 | QTR8356 | NRT → HKG | May 27, 15:00 UTC | May 27, 15:15 UTC | 15m |
| 2026-05-26 | QTR8095 | MAD → ALC | May 26, 23:29 UTC | May 27, 11:50 UTC | 12h 20m |
| 2026-05-26 | QTR8094 | LEI → MAD | May 26, 11:09 UTC | May 26, 21:29 UTC | 10h 20m |
| 2026-05-25 | QTR8095 | MAD → ALC | May 25, 22:05 UTC | May 26, 07:55 UTC | 9h 50m |
| 2026-05-25 | QTR8094 | LEI → MAD | May 25, 09:45 UTC | May 25, 20:19 UTC | 10h 34m |
| 2026-05-25 | QTR8362 | - | May 25, 03:20 UTC | May 25, 06:30 UTC | 3h 10m |
| 2026-05-24 | QTR8525 | - | May 24, 05:20 UTC | May 25, 03:55 UTC | 22h 35m |
| 2026-05-23 | QTR8524 | - | May 23, 21:15 UTC | May 24, 06:20 UTC | 9h 5m |
| 2026-05-23 | QTR8160 | AMS → DOH | May 23, 11:35 UTC | May 23, 17:30 UTC | 5h 55m |
| 2026-05-22 | QTR8160 | AMS → DOH | May 22, 14:35 UTC | May 23, 08:40 UTC | 18h 5m |
| 2026-05-22 | QTR8160 | AMS → DOH | May 22, 12:35 UTC | May 23, 08:40 UTC | 20h 4m |
| 2026-05-22 | QTR8160 | AMS → DOH | May 22, 10:35 UTC | May 23, 08:40 UTC | 22h 4m |
| 2026-05-22 | QTR8160 | AMS → DOH | May 22, 10:05 UTC | May 23, 08:30 UTC | 22h 24m |
| 2026-05-22 | QTR8159 | GRU → BOG | May 22, 05:25 UTC | May 22, 07:00 UTC | 1h 35m |
| 2026-05-21 | QTR8159 | GRU → BOG | May 21, 06:35 UTC | May 22, 06:30 UTC | 23h 55m |
| 2026-05-20 | QTR8970 | DOH → SGN | May 20, 11:25 UTC | May 21, 06:55 UTC | 19h 30m |
| 2026-05-20 | QTR9G | DOH → DEL | May 20, 06:25 UTC | May 20, 07:40 UTC | 1h 15m |
| 2026-05-19 | QTR91Y | DOH → FCO | May 19, 08:55 UTC | May 19, 14:25 UTC | 5h 30m |
| 2026-05-18 | QTR91Y | DOH → FCO | May 18, 23:05 UTC | May 19, 06:25 UTC | 7h 20m |
| 2026-05-18 | QTR61C | LGG → ORD | May 18, 09:25 UTC | May 18, 18:25 UTC | 9h 0m |
| 2026-05-18 | QTR61C | LGG → ORD | May 18, 01:30 UTC | May 18, 07:30 UTC | 6h 0m |
| 2026-05-17 | QTR8220 | LGG → ORD | May 17, 12:25 UTC | May 17, 18:30 UTC | 6h 5m |
| 2026-05-17 | QTR8220 | LGG → ORD | May 17, 08:50 UTC | May 17, 10:10 UTC | 1h 20m |
| 2026-05-16 | QTR3L | BHX → DOH | May 16, 09:51 UTC | May 16, 10:25 UTC | 35m |
| 2026-05-16 | QTR3L | BHX → DOH | May 16, 07:01 UTC | May 16, 07:31 UTC | 30m |
| 2026-05-15 | QTR8475 | HKG → DOH | May 15, 07:40 UTC | May 15, 20:10 UTC | 12h 29m |
| 2026-05-15 | QTR8475 | HKG → DOH | May 15, 05:30 UTC | May 15, 05:45 UTC | 15m |
| 2026-05-14 | QTR8474 | ROK → BNE | May 14, 23:10 UTC | May 14, 23:40 UTC | 30m |
| 2026-05-14 | QTR8474 | ROK → BNE | May 14, 18:05 UTC | May 14, 21:05 UTC | 3h 0m |
| 2026-05-13 | QTR8474 | ROK → BNE | May 13, 21:25 UTC | May 14, 20:30 UTC | 23h 5m |
| 2026-05-13 | QTR8917 | LGG → DOH | May 13, 19:30 UTC | May 14, 18:30 UTC | 23h 0m |
| 2026-05-13 | QTR8917 | LGG → DOH | May 13, 16:10 UTC | May 13, 17:55 UTC | 1h 45m |
| 2026-05-13 | QTR8916 | NGO → MEX | May 13, 11:40 UTC | May 13, 11:50 UTC | 10m |
| 2026-05-13 | QTR8916 | NGO → MEX | May 13, 00:00 UTC | May 13, 10:25 UTC | 10h 25m |
| 2026-05-12 | QTR8919 | CRK → AKL | May 12, 12:35 UTC | May 12, 21:25 UTC | 8h 50m |
| 2026-05-12 | QTR8919 | CRK → AKL | May 12, 08:55 UTC | May 12, 10:15 UTC | 1h 20m |
| 2026-05-11 | QTR8487 | STN → MXP | May 11, 08:55 UTC | May 12, 03:50 UTC | 18h 55m |
| 2026-05-10 | QTR8477 | ADL → PER | May 10, 15:45 UTC | May 11, 05:00 UTC | 13h 15m |
| 2026-05-10 | QTR8477 | ADL → PER | May 10, 13:44 UTC | May 10, 13:55 UTC | 10m |
| 2026-05-10 | QTR8476 | DOH → BKK | May 10, 11:00 UTC | May 10, 11:05 UTC | 5m |
| 2026-05-10 | QTR8476 | DOH → BKK | May 10, 08:45 UTC | May 10, 09:20 UTC | 35m |
| 2026-05-10 | QTR8476 | DOH → BKK | May 10, 01:30 UTC | May 10, 05:45 UTC | 4h 15m |
| 2026-05-09 | QTR8160 | AMS → DOH | May 9, 14:05 UTC | May 9, 19:55 UTC | 5h 50m |
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-BFM page for operator, model, and routing details .