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
- 127
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 12d 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 |
| QTR54E | Qatar Airways | 3 | 2026-06-03 |
| QTR2N | Qatar Airways | 3 | 2026-04-15 |
| QTR24T | Qatar Airways | 3 | 2026-04-15 |
| QTR1V | Qatar Airways | 3 | 2026-06-12 |
| QTR1F | Qatar Airways | 3 | 2026-05-21 |
| QTR18F | - | 3 | 2026-06-17 |
| QTR17E | - | 3 | 2026-06-26 |
| QTR8M | - | 2 | 2026-06-27 |
| QTR875 | Qatar Airways | 2 | 2026-05-12 |
| QTR874 | Qatar Airways | 2 | 2026-05-12 |
| QTR870 | Qatar Airways | 2 | 2026-05-14 |
| QTR837 | Qatar Airways | 2 | 2026-06-09 |
| QTR7A | Qatar Airways | 2 | 2026-05-27 |
| QTR65H | Qatar Airways | 2 | 2026-06-03 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-02 | QTR3254 | - | Jul 2, 03:50 UTC | Jul 2, 10:10 UTC | 6h 20m |
| 2026-07-02 | QTR2P | - | Jul 2, 01:15 UTC | Jul 2, 01:50 UTC | 35m |
| 2026-07-01 | QTR2P | - | Jul 1, 23:40 UTC | Jul 2, 00:05 UTC | 25m |
| 2026-07-01 | QTR4Q | - | Jul 1, 20:05 UTC | Jul 1, 20:35 UTC | 30m |
| 2026-07-01 | QTR4Q | - | Jul 1, 18:15 UTC | Jul 1, 18:45 UTC | 30m |
| 2026-06-30 | QTR27R | - | Jun 30, 11:15 UTC | Jul 1, 01:25 UTC | 14h 10m |
| 2026-06-29 | QTR40X | - | Jun 29, 17:34 UTC | Jun 30, 06:40 UTC | 13h 6m |
| 2026-06-29 | QTR87Q | ORD → DOH | Jun 29, 00:54 UTC | Jun 29, 14:09 UTC | 13h 15m |
| 2026-06-28 | QTR20V | DOH → ORD | Jun 28, 05:40 UTC | Jun 28, 19:25 UTC | 13h 45m |
| 2026-06-27 | QTR8M | - | Jun 27, 13:04 UTC | Jun 28, 02:39 UTC | 13h 35m |
| 2026-06-26 | QTR5M | - | Jun 26, 17:54 UTC | Jun 27, 06:44 UTC | 12h 50m |
| 2026-06-26 | QTR17E | - | Jun 26, 14:15 UTC | Jun 26, 14:50 UTC | 35m |
| 2026-06-26 | QTR17E | - | Jun 26, 02:40 UTC | Jun 26, 12:14 UTC | 9h 35m |
| 2026-06-25 | QTR20R | DOH → JFK | Jun 25, 05:35 UTC | Jun 25, 18:55 UTC | 13h 20m |
| 2026-06-24 | QTR1A | DOH → BEY | Jun 24, 18:25 UTC | Jun 25, 00:59 UTC | 6h 35m |
| 2026-06-24 | QTR5Y | - | Jun 24, 06:29 UTC | Jun 24, 13:24 UTC | 6h 55m |
| 2026-06-23 | QTR30J | - | Jun 23, 15:50 UTC | Jun 24, 04:10 UTC | 12h 20m |
| 2026-06-22 | QTR72P | DOH → DFW | Jun 22, 23:24 UTC | Jun 23, 12:45 UTC | 13h 20m |
| 2026-06-22 | QTR809 | - | Jun 22, 08:50 UTC | Jun 22, 19:29 UTC | 10h 40m |
| 2026-06-21 | QTR808 | - | Jun 21, 18:04 UTC | Jun 22, 03:40 UTC | 9h 35m |
| 2026-06-20 | QTR3X | - | Jun 20, 12:34 UTC | Jun 21, 00:59 UTC | 12h 25m |
| 2026-06-20 | QTR915 | - | Jun 20, 05:49 UTC | Jun 20, 10:29 UTC | 4h 40m |
| 2026-06-19 | QTR914 | - | Jun 19, 07:29 UTC | Jun 19, 10:59 UTC | 3h 30m |
| 2026-06-18 | QTR55Y | - | Jun 18, 20:20 UTC | Jun 19, 05:54 UTC | 9h 34m |
| 2026-06-18 | QTR77A | IAD → DOH | Jun 18, 01:05 UTC | Jun 18, 13:50 UTC | 12h 45m |
| 2026-06-17 | QTR18F | - | Jun 17, 08:00 UTC | Jun 17, 19:40 UTC | 11h 40m |
| 2026-06-16 | QTR18F | - | Jun 16, 22:50 UTC | Jun 17, 19:40 UTC | 20h 50m |
| 2026-06-16 | QTR18F | - | Jun 16, 16:05 UTC | Jun 17, 13:10 UTC | 21h 6m |
| 2026-06-16 | QTR8M | - | Jun 16, 13:09 UTC | Jun 17, 12:45 UTC | 23h 36m |
| 2026-06-15 | QTR5M | - | Jun 15, 21:04 UTC | Jun 16, 06:40 UTC | 9h 35m |
| 2026-06-15 | QTR120 | DOH → AUH | Jun 15, 09:15 UTC | Jun 15, 15:19 UTC | 6h 5m |
| 2026-06-15 | QTR119 | DXB → DOH | Jun 15, 02:04 UTC | Jun 15, 07:10 UTC | 5h 5m |
| 2026-06-14 | QTR17E | - | Jun 14, 02:25 UTC | Jun 14, 14:35 UTC | 12h 10m |
| 2026-06-12 | QTR52W | ZRH → DOH | Jun 12, 19:45 UTC | Jun 12, 20:15 UTC | 30m |
| 2026-06-12 | QTR1V | LHR → ISU | Jun 12, 03:20 UTC | Jun 12, 03:50 UTC | 30m |
| 2026-06-11 | QTR1V | LHR → ISU | Jun 11, 21:55 UTC | Jun 12, 02:05 UTC | 4h 11m |
| 2026-06-11 | QTR33W | DOH → LHR | Jun 11, 12:30 UTC | Jun 11, 19:35 UTC | 7h 5m |
| 2026-06-10 | QTR1V | LHR → ISU | Jun 10, 21:45 UTC | Jun 11, 03:55 UTC | 6h 10m |
| 2026-06-10 | QTR33W | DOH → LHR | Jun 10, 14:30 UTC | Jun 10, 19:35 UTC | 5h 5m |
| 2026-06-09 | QTR42M | AMS → DOH | Jun 9, 21:05 UTC | Jun 10, 03:15 UTC | 6h 10m |
| 2026-06-09 | QTR037 | DOH → CDG | Jun 9, 14:25 UTC | Jun 9, 18:55 UTC | 4h 30m |
| 2026-06-09 | QTR837 | BKK → DOH | Jun 9, 01:35 UTC | Jun 9, 01:50 UTC | 15m |
| 2026-06-08 | QTR837 | BKK → DOH | Jun 8, 19:40 UTC | Jun 8, 23:15 UTC | 3h 35m |
| 2026-06-08 | QTR836 | DOH → BKK | Jun 8, 05:05 UTC | Jun 8, 07:40 UTC | 2h 35m |
| 2026-06-06 | QTR807 | NRT → DOH | Jun 6, 13:54 UTC | Jun 6, 21:15 UTC | 7h 20m |
| 2026-06-06 | QTR806 | DOH → NRT | Jun 6, 07:50 UTC | Jun 6, 10:39 UTC | 2h 50m |
| 2026-06-04 | QTR32N | DOH → SJJ | Jun 4, 23:15 UTC | Jun 5, 00:30 UTC | 1h 15m |
| 2026-06-04 | QTR572 | DOH → BLR | Jun 4, 19:50 UTC | Jun 4, 21:20 UTC | 1h 30m |
| 2026-06-03 | QTR65H | DOH → MIA | Jun 3, 15:50 UTC | Jun 3, 21:40 UTC | 5h 50m |
| 2026-06-03 | QTR54E | DOH → CDG | Jun 3, 09:05 UTC | Jun 3, 13:25 UTC | 4h 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 .