sensors Mode-S transponder
06A1BB
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-BEE · BOEING 777-300ER
- Hex
- 06A1BB
- Octal
- 01520673
- Decimal
- 434,619
- Country
- QA
- Tail
- A7-BEE
- Type
- B77W
- Flights observed
- 75
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 12h ago
Last known position
Country allocation
The ICAO 24-bit address 06A1BB 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 |
|---|---|---|---|
| QTR33C | Qatar Airways | 6 | 2026-04-28 |
| QTR93X | Qatar Airways | 4 | 2026-04-29 |
| QTR27F | Qatar Airways | 4 | 2026-05-09 |
| QTR871 | Qatar Airways | 3 | 2026-05-14 |
| QTR827 | Qatar Airways | 3 | 2026-05-18 |
| QTR63A | Qatar Airways | 3 | 2026-05-28 |
| QTR2N | Qatar Airways | 3 | 2026-04-15 |
| QTR24T | Qatar Airways | 3 | 2026-04-15 |
| QTR1F | Qatar Airways | 3 | 2026-05-21 |
| QTR875 | Qatar Airways | 2 | 2026-05-12 |
| QTR874 | Qatar Airways | 2 | 2026-05-12 |
| QTR870 | Qatar Airways | 2 | 2026-05-14 |
| QTR7A | Qatar Airways | 2 | 2026-05-27 |
| QTR63N | - | 2 | 2026-05-02 |
| QTR1171 | - | 2 | 2026-04-17 |
| QTR1169 | Qatar Airways | 2 | 2026-05-21 |
| QTR90C | Qatar Airways | 1 | 2026-05-03 |
| QTR859 | Qatar Airways | 1 | 2026-05-29 |
| QTR858 | Qatar Airways | 1 | 2026-05-29 |
| QTR849 | Qatar Airways | 1 | 2026-05-04 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | QTR859 | ICN → DOH | May 29, 15:05 UTC | May 29, 16:45 UTC | 1h 40m |
| 2026-05-29 | QTR858 | DOH → ICN | May 29, 07:20 UTC | May 29, 07:40 UTC | 20m |
| 2026-05-28 | QTR63A | AMS → DOH | May 28, 10:50 UTC | May 29, 06:35 UTC | 19h 45m |
| 2026-05-28 | QTR63A | AMS → DOH | May 28, 08:50 UTC | May 29, 06:35 UTC | 21h 45m |
| 2026-05-28 | QTR63A | AMS → DOH | May 28, 07:55 UTC | May 29, 06:35 UTC | 22h 40m |
| 2026-05-27 | QTR61T | DOH → LHR | May 27, 22:25 UTC | May 28, 05:15 UTC | 6h 50m |
| 2026-05-27 | QTR7A | CAI → DOH | May 27, 13:25 UTC | May 27, 13:55 UTC | 30m |
| 2026-05-27 | QTR7A | CAI → DOH | May 27, 11:25 UTC | May 27, 11:35 UTC | 10m |
| 2026-05-26 | QTR1A | DOH → BEY | May 26, 18:14 UTC | May 27, 08:40 UTC | 14h 26m |
| 2026-05-26 | QTR5Y | FCO → DOH | May 26, 08:34 UTC | May 26, 13:19 UTC | 4h 45m |
| 2026-05-25 | QTR1Y | DXB → DOH | May 25, 09:10 UTC | May 25, 15:10 UTC | 6h 0m |
| 2026-05-25 | QTR38P | DOH → MAN | May 25, 03:15 UTC | May 25, 06:50 UTC | 3h 35m |
| 2026-05-21 | QTR67H | SKT → DOH | May 21, 19:10 UTC | May 22, 09:50 UTC | 14h 40m |
| 2026-05-21 | QTR1F | SFO → DOH | May 21, 13:10 UTC | May 21, 16:35 UTC | 3h 25m |
| 2026-05-21 | QTR1169 | RUH → DOH | May 21, 00:30 UTC | May 21, 01:05 UTC | 35m |
| 2026-05-19 | QTR5V | DOH → IAH | May 19, 13:40 UTC | May 19, 21:50 UTC | 8h 10m |
| 2026-05-18 | QTR827 | BKK → DOH | May 18, 21:45 UTC | May 19, 19:45 UTC | 22h 0m |
| 2026-05-18 | QTR827 | BKK → DOH | May 18, 18:55 UTC | May 19, 13:50 UTC | 18h 55m |
| 2026-05-18 | QTR827 | BKK → DOH | May 18, 18:10 UTC | May 19, 13:50 UTC | 19h 39m |
| 2026-05-18 | QTR826 | DOH → BKK | May 18, 06:35 UTC | May 18, 12:35 UTC | 6h 0m |
| 2026-05-17 | QTR120 | DOH → AUH | May 17, 09:05 UTC | May 17, 15:01 UTC | 5h 55m |
| 2026-05-16 | QTR119 | DXB → DOH | May 16, 23:40 UTC | May 16, 23:50 UTC | 10m |
| 2026-05-14 | QTR871 | PVG → DOH | May 14, 04:50 UTC | May 15, 00:10 UTC | 19h 20m |
| 2026-05-14 | QTR871 | PVG → DOH | May 14, 03:50 UTC | May 15, 00:10 UTC | 20h 20m |
| 2026-05-14 | QTR870 | DOH → PVG | May 14, 02:05 UTC | May 15, 00:10 UTC | 22h 5m |
| 2026-05-12 | QTR875 | CAN → DOH | May 12, 19:45 UTC | May 12, 23:55 UTC | 4h 10m |
| 2026-05-12 | QTR874 | DOH → CAN | May 12, 03:15 UTC | May 12, 04:30 UTC | 1h 15m |
| 2026-05-10 | QTR65H | DOH → MIA | May 10, 14:59 UTC | May 10, 21:00 UTC | 6h 0m |
| 2026-05-10 | QTR54E | DOH → CDG | May 10, 06:20 UTC | May 10, 12:49 UTC | 6h 30m |
| 2026-05-09 | QTR27F | OSL → DOH | May 9, 21:25 UTC | May 10, 00:39 UTC | 3h 15m |
| 2026-05-09 | QTR27F | OSL → DOH | May 9, 18:40 UTC | May 9, 21:19 UTC | 2h 40m |
| 2026-05-08 | QTR875 | CAN → DOH | May 8, 19:50 UTC | May 9, 09:45 UTC | 13h 55m |
| 2026-05-08 | QTR874 | DOH → CAN | May 8, 03:44 UTC | May 8, 05:00 UTC | 1h 15m |
| 2026-05-07 | QTR65L | DOH → LGG | May 7, 15:45 UTC | May 7, 21:35 UTC | 5h 50m |
| 2026-05-06 | QTR79Y | - | May 6, 20:55 UTC | May 7, 13:40 UTC | 16h 45m |
| 2026-05-06 | QTR871 | PVG → DOH | May 6, 04:25 UTC | May 6, 22:00 UTC | 17h 34m |
| 2026-05-06 | QTR870 | DOH → PVG | May 6, 01:01 UTC | May 6, 22:00 UTC | 20h 59m |
| 2026-05-04 | QTR849 | KUL → DOH | May 4, 18:20 UTC | May 4, 22:40 UTC | 4h 21m |
| 2026-05-03 | QTR90C | DOH → IAD | May 3, 17:35 UTC | May 4, 00:19 UTC | 6h 45m |
| 2026-05-03 | QTR1184 | DOH → JED | May 3, 00:10 UTC | May 3, 08:45 UTC | 8h 34m |
| 2026-05-02 | QTR27L | BEY → DOH | May 2, 13:20 UTC | May 2, 13:50 UTC | 30m |
| 2026-05-02 | QTR63N | - | May 2, 06:10 UTC | May 2, 06:40 UTC | 30m |
| 2026-04-30 | QTR32N | DOH → SJJ | Apr 30, 23:45 UTC | May 1, 03:25 UTC | 3h 40m |
| 2026-04-30 | QTR572 | DOH → BLR | Apr 30, 17:55 UTC | Apr 30, 21:25 UTC | 3h 30m |
| 2026-04-29 | QTR1185 | JED → DOH | Apr 29, 23:50 UTC | Apr 30, 08:00 UTC | 8h 10m |
| 2026-04-29 | QTR93X | CMB → DOH | Apr 29, 08:34 UTC | Apr 29, 14:30 UTC | 5h 56m |
| 2026-04-28 | QTR33C | VIE → DOH | Apr 28, 22:35 UTC | Apr 29, 05:09 UTC | 6h 35m |
| 2026-04-27 | QTR27F | OSL → DOH | Apr 27, 08:45 UTC | Apr 27, 15:00 UTC | 6h 15m |
| 2026-04-26 | QTR1F | SFO → DOH | Apr 26, 23:05 UTC | Apr 27, 06:20 UTC | 7h 15m |
| 2026-04-26 | QTR27F | OSL → DOH | Apr 26, 08:30 UTC | Apr 26, 14:50 UTC | 6h 20m |
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-BEE page for operator, model, and routing details .