sensors Mode-S transponder
06A123
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-ANG · AIRBUS A-350-1000
- Hex
- 06A123
- Octal
- 01520443
- Decimal
- 434,467
- Country
- QA
- Tail
- A7-ANG
- Type
- A35K
- Flights observed
- 83
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 1h ago
Last known position
Country allocation
The ICAO 24-bit address 06A123 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 |
|---|---|---|---|
| QTR778 | Qatar Airways | 12 | 2026-05-24 |
| QTR93V | Qatar Airways | 8 | 2026-05-20 |
| QTR818 | Qatar Airways | 5 | 2026-05-24 |
| QTR815 | Qatar Airways | 5 | 2026-05-25 |
| QTR18F | Qatar Airways | 5 | 2026-05-26 |
| QTR5M | Qatar Airways | 4 | 2026-05-29 |
| QTR8M | Qatar Airways | 3 | 2026-05-30 |
| QTR29F | Qatar Airways | 3 | 2026-05-22 |
| QTR004 | - | 3 | 2026-04-19 |
| QTR93W | Qatar Airways | 2 | 2026-05-27 |
| QTR65R | Qatar Airways | 2 | 2026-05-27 |
| QTR64V | Qatar Airways | 2 | 2026-04-18 |
| QTR63A | Qatar Airways | 2 | 2026-05-05 |
| QTR572 | Qatar Airways | 2 | 2026-05-18 |
| QTR40C | - | 2 | 2026-05-01 |
| QTR32N | Qatar Airways | 2 | 2026-05-18 |
| QTR3271 | Qatar Airways | 2 | 2026-04-13 |
| QTR21L | Qatar Airways | 2 | 2026-05-19 |
| QTR20R | Qatar Airways | 2 | 2026-05-17 |
| QTR17E | - | 2 | 2026-05-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-30 | QTR8M | DOH → CMB | May 30, 13:00 UTC | May 30, 14:00 UTC | 1h 0m |
| 2026-05-29 | QTR5M | EBL → DOH | May 29, 21:35 UTC | May 30, 06:35 UTC | 9h 0m |
| 2026-05-29 | QTR22B | DOH → JFK | May 29, 01:10 UTC | May 29, 15:15 UTC | 14h 5m |
| 2026-05-27 | QTR65B | DFW → DOH | May 27, 22:50 UTC | May 27, 23:30 UTC | 40m |
| 2026-05-27 | QTR93W | TRV → DOH | May 27, 17:25 UTC | May 27, 20:20 UTC | 2h 55m |
| 2026-05-27 | QTR65R | SEA → DOH | May 27, 01:14 UTC | May 27, 14:05 UTC | 12h 51m |
| 2026-05-26 | QTR18F | BUD → DOH | May 26, 10:34 UTC | May 26, 21:49 UTC | 11h 15m |
| 2026-05-25 | QTR18F | BUD → DOH | May 25, 23:10 UTC | May 26, 21:49 UTC | 22h 40m |
| 2026-05-25 | QTR18F | BUD → DOH | May 25, 20:50 UTC | May 26, 20:45 UTC | 23h 55m |
| 2026-05-25 | QTR18F | BUD → DOH | May 25, 20:15 UTC | May 26, 15:39 UTC | 19h 25m |
| 2026-05-25 | QTR815 | HKG → DOH | May 25, 18:15 UTC | May 25, 18:30 UTC | 15m |
| 2026-05-24 | QTR818 | DOH → HKG | May 24, 12:50 UTC | May 25, 07:55 UTC | 19h 5m |
| 2026-05-24 | QTR818 | DOH → HKG | May 24, 10:50 UTC | May 25, 07:55 UTC | 21h 5m |
| 2026-05-24 | QTR778 | MIA → DOH | May 24, 09:05 UTC | May 25, 07:55 UTC | 22h 50m |
| 2026-05-24 | QTR778 | MIA → DOH | May 24, 02:50 UTC | May 25, 02:45 UTC | 23h 55m |
| 2026-05-24 | QTR778 | MIA → DOH | May 24, 02:40 UTC | May 24, 13:45 UTC | 11h 5m |
| 2026-05-22 | QTR29F | LHR → DOH | May 22, 07:20 UTC | May 22, 11:25 UTC | 4h 5m |
| 2026-05-21 | QTR778 | MIA → DOH | May 21, 03:05 UTC | May 21, 16:35 UTC | 13h 30m |
| 2026-05-20 | QTR93V | DOH → MIA | May 20, 11:00 UTC | May 21, 00:00 UTC | 13h 0m |
| 2026-05-19 | QTR21L | LAX → LGG | May 19, 15:25 UTC | May 19, 21:15 UTC | 5h 50m |
| 2026-05-18 | QTR32N | DOH → SJJ | May 18, 23:20 UTC | May 19, 00:30 UTC | 1h 10m |
| 2026-05-18 | QTR572 | DOH → BLR | May 18, 19:40 UTC | May 18, 21:05 UTC | 1h 25m |
| 2026-05-18 | QTR17E | - | May 18, 02:30 UTC | May 18, 14:15 UTC | 11h 45m |
| 2026-05-17 | QTR20R | DOH → JFK | May 17, 09:15 UTC | May 17, 20:40 UTC | 11h 25m |
| 2026-05-16 | QTR20R | DOH → JFK | May 16, 23:00 UTC | May 17, 20:40 UTC | 21h 40m |
| 2026-05-16 | QTR93W | TRV → DOH | May 16, 20:15 UTC | May 16, 20:55 UTC | 40m |
| 2026-05-15 | QTR815 | HKG → DOH | May 15, 20:40 UTC | May 16, 00:45 UTC | 4h 5m |
| 2026-05-15 | QTR815 | HKG → DOH | May 15, 18:40 UTC | May 15, 18:50 UTC | 10m |
| 2026-05-15 | QTR818 | DOH → HKG | May 15, 07:35 UTC | May 15, 08:00 UTC | 25m |
| 2026-05-14 | QTR778 | MIA → DOH | May 14, 10:50 UTC | May 15, 05:35 UTC | 18h 45m |
| 2026-05-14 | QTR778 | MIA → DOH | May 14, 04:05 UTC | May 15, 02:45 UTC | 22h 40m |
| 2026-05-12 | QTR778 | MIA → DOH | May 12, 08:20 UTC | May 12, 14:25 UTC | 6h 5m |
| 2026-05-11 | QTR93V | DOH → MIA | May 11, 08:40 UTC | May 11, 21:45 UTC | 13h 6m |
| 2026-05-10 | QTR774 | GRU → DOH | May 10, 05:25 UTC | May 10, 19:09 UTC | 13h 45m |
| 2026-05-09 | QTR773 | DOH → GRU | May 9, 06:50 UTC | May 9, 20:25 UTC | 13h 35m |
| 2026-05-08 | QTR8M | DOH → CMB | May 8, 13:15 UTC | May 8, 23:15 UTC | 10h 0m |
| 2026-05-07 | QTR5M | EBL → DOH | May 7, 21:20 UTC | May 8, 07:14 UTC | 9h 54m |
| 2026-05-07 | QTR5M | EBL → DOH | May 7, 01:50 UTC | May 7, 22:05 UTC | 20h 15m |
| 2026-05-06 | QTR815 | HKG → DOH | May 6, 20:35 UTC | May 7, 02:00 UTC | 5h 25m |
| 2026-05-06 | QTR815 | HKG → DOH | May 6, 18:40 UTC | May 6, 18:50 UTC | 10m |
| 2026-05-06 | QTR818 | DOH → HKG | May 6, 04:35 UTC | May 6, 08:15 UTC | 3h 40m |
| 2026-05-05 | QTR818 | DOH → HKG | May 5, 10:50 UTC | May 6, 08:15 UTC | 21h 25m |
| 2026-05-05 | QTR63A | AMS → DOH | May 5, 08:50 UTC | May 6, 08:15 UTC | 23h 25m |
| 2026-05-05 | QTR63A | AMS → DOH | May 5, 07:40 UTC | May 6, 05:35 UTC | 21h 55m |
| 2026-05-04 | QTR943 | SIN → DOH | May 4, 11:30 UTC | May 4, 16:20 UTC | 4h 50m |
| 2026-05-03 | QTR942 | DOH → SIN | May 3, 17:50 UTC | May 4, 00:45 UTC | 6h 55m |
| 2026-05-03 | QTR1173 | RUH → DOH | May 3, 03:15 UTC | May 3, 04:00 UTC | 44m |
| 2026-05-02 | QTR1172 | DOH → RUH | May 2, 23:15 UTC | May 2, 23:45 UTC | 30m |
| 2026-05-02 | QTR29F | LHR → DOH | May 2, 07:45 UTC | May 2, 13:55 UTC | 6h 10m |
| 2026-05-01 | QTR40C | - | May 1, 22:30 UTC | May 2, 05:55 UTC | 7h 25m |
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-ANG page for operator, model, and routing details .