sensors Mode-S transponder
06A1E9
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-BFL · BOEING 777-200LR
- Hex
- 06A1E9
- Octal
- 01520751
- Decimal
- 434,665
- Country
- QA
- Tail
- A7-BFL
- Type
- B77L
- Flights observed
- 122
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 4h ago
Current position
Country allocation
The ICAO 24-bit address 06A1E9 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 |
|---|---|---|---|
| QTR8188 | Qatar Airways | 7 | 2026-04-16 |
| QTR8961 | Qatar Airways | 5 | 2026-05-19 |
| QTR8941 | Qatar Airways | 5 | 2026-05-10 |
| QTR8139 | Qatar Airways | 5 | 2026-04-13 |
| QTR2A | - | 5 | 2026-04-14 |
| QTR8452 | Qatar Airways | 4 | 2026-05-23 |
| QTR8187 | Qatar Airways | 4 | 2026-04-15 |
| QTR8158 | Qatar Airways | 4 | 2026-05-13 |
| QTR8140 | - | 4 | 2026-04-13 |
| QTR79A | Qatar Airways | 4 | 2026-04-17 |
| QTR8472 | Qatar Airways | 3 | 2026-04-18 |
| QTR8411 | Qatar Airways | 3 | 2026-05-24 |
| QTR8410 | Qatar Airways | 3 | 2026-05-24 |
| QTR8408 | Qatar Airways | 3 | 2026-04-19 |
| QTR8358 | Qatar Airways | 3 | 2026-05-30 |
| QTR8157 | Qatar Airways | 3 | 2026-05-12 |
| QTR23W | - | 3 | 2026-04-17 |
| QTR8984 | Qatar Airways | 2 | 2026-05-26 |
| QTR8963 | Qatar Airways | 2 | 2026-05-27 |
| QTR8960 | Qatar Airways | 2 | 2026-05-19 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | QTR8358 | LHR → MXP | May 30, 04:05 UTC | May 30, 06:00 UTC | 1h 55m |
| 2026-05-29 | QTR8358 | LHR → MXP | May 29, 17:35 UTC | May 30, 01:35 UTC | 8h 0m |
| 2026-05-28 | QTR8358 | LHR → MXP | May 28, 20:45 UTC | May 29, 12:00 UTC | 15h 15m |
| 2026-05-27 | QTR8963 | PVG → DOH | May 27, 23:45 UTC | May 28, 03:00 UTC | 3h 15m |
| 2026-05-27 | QTR8963 | PVG → DOH | May 27, 00:30 UTC | May 28, 00:15 UTC | 23h 46m |
| 2026-05-26 | QTR8985 | ICN → DOH | May 26, 17:20 UTC | May 27, 00:34 UTC | 7h 15m |
| 2026-05-26 | QTR8984 | SYD → MEL | May 26, 14:09 UTC | May 26, 14:35 UTC | 25m |
| 2026-05-26 | QTR8984 | SYD → MEL | May 26, 13:04 UTC | May 26, 13:24 UTC | 20m |
| 2026-05-25 | QTR8238 | LGG → DOH | May 25, 19:10 UTC | May 26, 00:39 UTC | 5h 30m |
| 2026-05-25 | QTR8238 | LGG → DOH | May 25, 14:55 UTC | May 25, 15:55 UTC | 1h 0m |
| 2026-05-24 | QTR8237 | LGG → OSL | May 24, 18:20 UTC | May 25, 12:40 UTC | 18h 20m |
| 2026-05-24 | QTR8237 | LGG → OSL | May 24, 18:10 UTC | May 25, 12:40 UTC | 18h 30m |
| 2026-05-24 | QTR8411 | GRU → NVT | May 24, 16:20 UTC | May 24, 16:30 UTC | 10m |
| 2026-05-24 | QTR8410 | GRU → BEL | May 24, 13:15 UTC | May 24, 13:50 UTC | 35m |
| 2026-05-23 | QTR8410 | GRU → BEL | May 23, 20:50 UTC | May 24, 11:20 UTC | 14h 30m |
| 2026-05-23 | QTR8073 | BKK → DOH | May 23, 11:35 UTC | May 23, 18:45 UTC | 7h 11m |
| 2026-05-23 | QTR8452 | DOH → HKG | May 23, 08:20 UTC | May 23, 09:25 UTC | 1h 5m |
| 2026-05-22 | QTR8452 | DOH → HKG | May 22, 18:55 UTC | May 23, 05:10 UTC | 10h 14m |
| 2026-05-22 | QTR8452 | DOH → HKG | May 22, 09:20 UTC | May 23, 05:10 UTC | 19h 49m |
| 2026-05-22 | QTR8452 | DOH → HKG | May 22, 06:20 UTC | May 23, 05:10 UTC | 22h 49m |
| 2026-05-22 | QTR8405 | HKG → DOH | May 22, 04:20 UTC | May 22, 04:35 UTC | 15m |
| 2026-05-22 | QTR8404 | DOH → HKG | May 22, 01:00 UTC | May 22, 01:35 UTC | 35m |
| 2026-05-21 | QTR12B | ORD → DOH | May 21, 01:40 UTC | May 21, 02:25 UTC | 45m |
| 2026-05-20 | QTR12B | ORD → DOH | May 20, 20:25 UTC | May 21, 00:20 UTC | 3h 55m |
| 2026-05-20 | QTR8202 | IKA → DOH | May 20, 16:00 UTC | May 20, 17:45 UTC | 1h 45m |
| 2026-05-19 | QTR8201 | DOH → AMS | May 19, 22:20 UTC | May 20, 13:00 UTC | 14h 41m |
| 2026-05-19 | QTR8961 | PVG → DOH | May 19, 12:25 UTC | May 20, 12:15 UTC | 23h 51m |
| 2026-05-19 | QTR8960 | DOH → PVG | May 19, 09:15 UTC | May 20, 01:25 UTC | 16h 10m |
| 2026-05-18 | QTR58U | YUL → DOH | May 18, 19:20 UTC | May 19, 12:35 UTC | 17h 15m |
| 2026-05-18 | QTR58U | YUL → DOH | May 18, 15:55 UTC | May 18, 17:05 UTC | 1h 10m |
| 2026-05-17 | QTR45A | - | May 17, 21:10 UTC | May 18, 12:40 UTC | 15h 30m |
| 2026-05-17 | QTR8415 | HKG → DOH | May 17, 19:15 UTC | May 17, 19:30 UTC | 15m |
| 2026-05-16 | QTR8500 | - | May 16, 22:50 UTC | May 17, 16:01 UTC | 17h 10m |
| 2026-05-16 | QTR8961 | PVG → DOH | May 16, 12:21 UTC | May 17, 11:15 UTC | 22h 55m |
| 2026-05-16 | QTR8960 | DOH → PVG | May 16, 09:51 UTC | May 17, 01:45 UTC | 15h 55m |
| 2026-05-15 | QTR73R | - | May 15, 20:20 UTC | May 16, 12:45 UTC | 16h 26m |
| 2026-05-15 | QTR8271 | CDG → DUB | May 15, 12:55 UTC | May 15, 18:05 UTC | 5h 9m |
| 2026-05-15 | QTR7N | MCT → DOH | May 15, 02:35 UTC | May 15, 07:20 UTC | 4h 45m |
| 2026-05-14 | QTR8274 | MXP → DOH | May 14, 22:45 UTC | May 15, 00:15 UTC | 1h 30m |
| 2026-05-14 | QTR8273 | DOH → MAD | May 14, 06:35 UTC | May 14, 19:50 UTC | 13h 15m |
| 2026-05-13 | QTR8158 | MST → PTY | May 13, 13:31 UTC | May 14, 03:45 UTC | 14h 15m |
| 2026-05-13 | QTR8158 | MST → PTY | May 13, 09:10 UTC | May 13, 10:45 UTC | 1h 35m |
| 2026-05-12 | QTR8158 | MST → PTY | May 12, 14:20 UTC | May 13, 10:45 UTC | 20h 25m |
| 2026-05-12 | QTR8158 | MST → PTY | May 12, 13:30 UTC | May 13, 10:45 UTC | 21h 15m |
| 2026-05-12 | QTR8157 | EZE → UIO | May 12, 11:05 UTC | May 13, 10:15 UTC | 23h 10m |
| 2026-05-12 | QTR8157 | EZE → UIO | May 12, 09:30 UTC | May 12, 14:20 UTC | 4h 50m |
| 2026-05-11 | QTR8157 | EZE → UIO | May 11, 19:35 UTC | May 12, 07:10 UTC | 11h 35m |
| 2026-05-10 | QTR8941 | CAN → DOH | May 10, 21:49 UTC | May 11, 12:00 UTC | 14h 10m |
| 2026-05-10 | QTR8941 | CAN → DOH | May 10, 14:20 UTC | May 11, 12:00 UTC | 21h 40m |
| 2026-05-10 | QTR8941 | CAN → DOH | May 10, 13:14 UTC | May 11, 12:00 UTC | 22h 45m |
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-BFL page for operator, model, and routing details .