sensors Mode-S transponder
06A12A
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-ANN · AIRBUS A-350-1000
- Hex
- 06A12A
- Octal
- 01520452
- Decimal
- 434,474
- Country
- QA
- Tail
- A7-ANN
- Type
- A35K
- Flights observed
- 87
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 06A12A 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 |
|---|---|---|---|
| QTR93V | Qatar Airways | 10 | 2026-05-26 |
| QTR778 | Qatar Airways | 8 | 2026-05-27 |
| QTR5M | Qatar Airways | 7 | 2026-05-25 |
| QTR40X | - | 6 | 2026-05-16 |
| QTR20V | Qatar Airways | 5 | 2026-05-18 |
| QTR74X | - | 4 | 2026-04-14 |
| QTR66Y | - | 4 | 2026-04-14 |
| QTR8M | Qatar Airways | 3 | 2026-05-01 |
| QTR93W | Qatar Airways | 2 | 2026-05-22 |
| QTR87Q | Qatar Airways | 2 | 2026-05-19 |
| QTR706 | Qatar Airways | 2 | 2026-04-24 |
| QTR65R | Qatar Airways | 2 | 2026-05-22 |
| QTR57W | Qatar Airways | 2 | 2026-05-29 |
| QTR4U | Qatar Airways | 2 | 2026-05-04 |
| QTR29F | Qatar Airways | 2 | 2026-05-16 |
| QTR27R | - | 2 | 2026-05-17 |
| QTR20R | Qatar Airways | 2 | 2026-05-23 |
| QTR17E | - | 2 | 2026-05-24 |
| QTR15Q | Qatar Airways | 2 | 2026-04-23 |
| QTR7P | Qatar Airways | 1 | 2026-05-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | QTR57W | BRU → DOH | May 29, 22:15 UTC | May 29, 22:50 UTC | 35m |
| 2026-05-28 | QTR780 | GRU → DOH | May 28, 23:55 UTC | May 29, 13:10 UTC | 13h 15m |
| 2026-05-28 | QTR779 | DOH → GRU | May 28, 01:25 UTC | May 28, 16:10 UTC | 14h 45m |
| 2026-05-27 | QTR778 | MIA → DOH | May 27, 01:24 UTC | May 27, 15:15 UTC | 13h 51m |
| 2026-05-26 | QTR93V | DOH → MIA | May 26, 08:45 UTC | May 26, 20:45 UTC | 12h 0m |
| 2026-05-25 | QTR93V | DOH → MIA | May 25, 22:34 UTC | May 26, 20:45 UTC | 22h 10m |
| 2026-05-25 | QTR93V | DOH → MIA | May 25, 22:25 UTC | May 26, 20:29 UTC | 22h 5m |
| 2026-05-25 | QTR93V | DOH → MIA | May 25, 13:05 UTC | May 26, 12:30 UTC | 23h 24m |
| 2026-05-25 | QTR5M | EBL → DOH | May 25, 03:20 UTC | May 25, 06:40 UTC | 3h 20m |
| 2026-05-24 | QTR17E | - | May 24, 02:40 UTC | May 24, 14:45 UTC | 12h 5m |
| 2026-05-23 | QTR20R | DOH → JFK | May 23, 09:55 UTC | May 23, 20:30 UTC | 10h 36m |
| 2026-05-22 | QTR20R | DOH → JFK | May 22, 22:45 UTC | May 23, 20:30 UTC | 21h 45m |
| 2026-05-22 | QTR93W | TRV → DOH | May 22, 19:20 UTC | May 22, 20:30 UTC | 1h 10m |
| 2026-05-22 | QTR65R | SEA → DOH | May 22, 01:50 UTC | May 22, 14:00 UTC | 12h 10m |
| 2026-05-20 | QTR16M | AMS → DOH | May 20, 12:30 UTC | May 21, 00:25 UTC | 11h 55m |
| 2026-05-19 | QTR74V | DOH → ATL | May 19, 19:40 UTC | May 20, 07:00 UTC | 11h 21m |
| 2026-05-19 | QTR87Q | ORD → DOH | May 19, 00:50 UTC | May 19, 13:25 UTC | 12h 35m |
| 2026-05-18 | QTR20V | DOH → ORD | May 18, 07:40 UTC | May 18, 22:00 UTC | 14h 19m |
| 2026-05-17 | QTR20V | DOH → ORD | May 17, 21:40 UTC | May 18, 20:30 UTC | 22h 49m |
| 2026-05-17 | QTR20V | DOH → ORD | May 17, 12:40 UTC | May 18, 12:30 UTC | 23h 50m |
| 2026-05-17 | QTR27R | - | May 17, 11:25 UTC | May 18, 10:30 UTC | 23h 5m |
| 2026-05-16 | QTR40X | - | May 16, 20:40 UTC | May 17, 06:40 UTC | 10h 0m |
| 2026-05-16 | QTR40X | - | May 16, 10:35 UTC | May 17, 06:40 UTC | 20h 5m |
| 2026-05-16 | QTR29F | LHR → DOH | May 16, 08:36 UTC | May 17, 06:40 UTC | 22h 5m |
| 2026-05-16 | QTR29F | LHR → DOH | May 16, 07:31 UTC | May 17, 06:30 UTC | 23h 0m |
| 2026-05-16 | QTR57W | BRU → DOH | May 16, 02:20 UTC | May 16, 05:10 UTC | 2h 50m |
| 2026-05-15 | QTR87Q | ORD → DOH | May 15, 00:50 UTC | May 15, 13:20 UTC | 12h 30m |
| 2026-05-14 | QTR20V | DOH → ORD | May 14, 11:25 UTC | May 14, 20:50 UTC | 9h 25m |
| 2026-05-13 | QTR20V | DOH → ORD | May 13, 21:35 UTC | May 14, 20:30 UTC | 22h 55m |
| 2026-05-13 | QTR27R | - | May 13, 11:15 UTC | May 13, 22:00 UTC | 10h 45m |
| 2026-05-13 | QTR40X | - | May 13, 06:15 UTC | May 13, 07:00 UTC | 45m |
| 2026-05-12 | QTR65R | SEA → DOH | May 12, 02:45 UTC | May 12, 13:15 UTC | 10h 30m |
| 2026-05-11 | QTR18F | BUD → DOH | May 11, 08:20 UTC | May 11, 22:35 UTC | 14h 15m |
| 2026-05-10 | QTR65B | DFW → DOH | May 10, 19:19 UTC | May 11, 00:05 UTC | 4h 45m |
| 2026-05-08 | QTR47Y | PHL → DOH | May 8, 15:05 UTC | May 8, 19:20 UTC | 4h 15m |
| 2026-05-07 | QTR21L | LAX → LGG | May 7, 15:35 UTC | May 7, 21:35 UTC | 6h 0m |
| 2026-05-07 | QTR7P | PHL → DOH | May 7, 09:30 UTC | May 7, 13:20 UTC | 3h 50m |
| 2026-05-06 | QTR53E | - | May 6, 08:10 UTC | May 6, 20:25 UTC | 12h 14m |
| 2026-05-04 | QTR4U | DOH → CDG | May 4, 11:15 UTC | May 4, 22:05 UTC | 10h 51m |
| 2026-05-03 | QTR40X | - | May 3, 18:00 UTC | May 4, 07:00 UTC | 13h 0m |
| 2026-05-03 | QTR17E | JFK → DOH | May 3, 02:40 UTC | May 3, 14:40 UTC | 11h 59m |
| 2026-05-02 | QTR4E | DOH → BNE | May 2, 06:45 UTC | May 2, 20:00 UTC | 13h 15m |
| 2026-05-01 | QTR8M | DOH → CMB | May 1, 13:15 UTC | May 2, 03:10 UTC | 13h 56m |
| 2026-04-30 | QTR5M | EBL → DOH | Apr 30, 17:55 UTC | May 1, 06:40 UTC | 12h 45m |
| 2026-04-29 | QTR22B | DOH → JFK | Apr 29, 00:59 UTC | Apr 29, 14:45 UTC | 13h 46m |
| 2026-04-28 | QTR70E | TUN → DOH | Apr 28, 05:10 UTC | Apr 28, 21:19 UTC | 16h 10m |
| 2026-04-27 | QTR4U | DOH → CDG | Apr 27, 10:55 UTC | Apr 28, 00:55 UTC | 14h 0m |
| 2026-04-27 | QTR40X | - | Apr 27, 06:45 UTC | Apr 27, 07:15 UTC | 30m |
| 2026-04-26 | QTR40X | - | Apr 26, 18:05 UTC | Apr 27, 06:40 UTC | 12h 35m |
| 2026-04-26 | QTR6W | ORD → DOH | Apr 26, 00:35 UTC | Apr 26, 09:05 UTC | 8h 30m |
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-ANN page for operator, model, and routing details .