sensors Mode-S transponder
06A12B
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-ANO · AIRBUS A-350-1000
- Hex
- 06A12B
- Octal
- 01520453
- Decimal
- 434,475
- Country
- QA
- Tail
- A7-ANO
- Type
- A35K
- Flights observed
- 94
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 14h ago
Last known position
Country allocation
The ICAO 24-bit address 06A12B 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 |
|---|---|---|---|
| QTR17E | - | 8 | 2026-05-14 |
| QTR815 | Qatar Airways | 7 | 2026-05-29 |
| QTR4E | Qatar Airways | 7 | 2026-04-29 |
| QTR818 | Qatar Airways | 6 | 2026-05-29 |
| QTR20V | Qatar Airways | 5 | 2026-05-19 |
| QTR8M | Qatar Airways | 4 | 2026-05-11 |
| QTR5M | Qatar Airways | 4 | 2026-05-10 |
| QTR29F | Qatar Airways | 4 | 2026-05-17 |
| QTR16M | Qatar Airways | 4 | 2026-05-24 |
| QTR003 | - | 4 | 2026-04-20 |
| QTR99M | Qatar Airways | 3 | 2026-04-22 |
| QTR87Q | Qatar Airways | 3 | 2026-05-23 |
| QTR40C | - | 3 | 2026-04-30 |
| QTR21L | Qatar Airways | 3 | 2026-05-02 |
| QTR20R | Qatar Airways | 3 | 2026-05-13 |
| QTR7P | Qatar Airways | 2 | 2026-05-02 |
| QTR778 | Qatar Airways | 2 | 2026-05-26 |
| QTR74V | Qatar Airways | 2 | 2026-05-23 |
| QTR004 | - | 2 | 2026-04-20 |
| QTR93W | Qatar Airways | 1 | 2026-05-01 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | QTR815 | HKG → DOH | May 29, 18:40 UTC | May 30, 00:40 UTC | 6h 0m |
| 2026-05-29 | QTR818 | DOH → HKG | May 29, 02:10 UTC | May 29, 08:05 UTC | 5h 55m |
| 2026-05-28 | QTR47Y | PHL → DOH | May 28, 15:00 UTC | May 28, 21:10 UTC | 6h 10m |
| 2026-05-27 | QTR815 | HKG → DOH | May 27, 19:05 UTC | May 28, 00:15 UTC | 5h 10m |
| 2026-05-27 | QTR815 | HKG → DOH | May 27, 18:20 UTC | May 27, 18:35 UTC | 15m |
| 2026-05-27 | QTR818 | DOH → HKG | May 27, 02:14 UTC | May 27, 08:00 UTC | 5h 45m |
| 2026-05-26 | QTR778 | MIA → DOH | May 26, 15:24 UTC | May 26, 16:00 UTC | 35m |
| 2026-05-26 | QTR778 | MIA → DOH | May 26, 01:49 UTC | May 26, 12:35 UTC | 10h 45m |
| 2026-05-25 | QTR93V | DOH → MIA | May 25, 09:35 UTC | May 25, 21:49 UTC | 12h 15m |
| 2026-05-24 | QTR16M | AMS → DOH | May 24, 23:00 UTC | May 24, 23:25 UTC | 25m |
| 2026-05-24 | QTR16M | AMS → DOH | May 24, 12:40 UTC | May 24, 13:10 UTC | 30m |
| 2026-05-23 | QTR74V | DOH → ATL | May 23, 20:55 UTC | May 24, 07:10 UTC | 10h 15m |
| 2026-05-23 | QTR87Q | ORD → DOH | May 23, 00:45 UTC | May 23, 13:25 UTC | 12h 39m |
| 2026-05-21 | QTR27R | - | May 21, 11:10 UTC | May 21, 22:00 UTC | 10h 50m |
| 2026-05-20 | QTR40X | - | May 20, 20:35 UTC | May 21, 06:50 UTC | 10h 15m |
| 2026-05-20 | QTR87Q | ORD → DOH | May 20, 01:00 UTC | May 20, 13:40 UTC | 12h 41m |
| 2026-05-19 | QTR20V | DOH → ORD | May 19, 09:45 UTC | May 19, 21:55 UTC | 12h 10m |
| 2026-05-18 | QTR20V | DOH → ORD | May 18, 22:55 UTC | May 19, 21:55 UTC | 23h 0m |
| 2026-05-18 | QTR20V | DOH → ORD | May 18, 19:50 UTC | May 19, 16:15 UTC | 20h 25m |
| 2026-05-18 | QTR20V | DOH → ORD | May 18, 16:10 UTC | May 19, 14:45 UTC | 22h 34m |
| 2026-05-18 | QTR16M | AMS → DOH | May 18, 12:50 UTC | May 19, 12:45 UTC | 23h 54m |
| 2026-05-18 | QTR16M | AMS → DOH | May 18, 12:35 UTC | May 19, 10:20 UTC | 21h 44m |
| 2026-05-17 | QTR74V | DOH → ATL | May 17, 21:05 UTC | May 18, 06:45 UTC | 9h 40m |
| 2026-05-17 | QTR29F | LHR → DOH | May 17, 07:40 UTC | May 17, 13:31 UTC | 5h 50m |
| 2026-05-17 | QTR57W | BRU → DOH | May 17, 02:40 UTC | May 17, 05:40 UTC | 3h 0m |
| 2026-05-14 | QTR17E | - | May 14, 02:55 UTC | May 14, 14:40 UTC | 11h 45m |
| 2026-05-13 | QTR20R | DOH → JFK | May 13, 10:25 UTC | May 13, 20:15 UTC | 9h 50m |
| 2026-05-12 | QTR20R | DOH → JFK | May 12, 16:50 UTC | May 13, 14:35 UTC | 21h 45m |
| 2026-05-12 | QTR20R | DOH → JFK | May 12, 15:15 UTC | May 13, 14:35 UTC | 23h 20m |
| 2026-05-11 | QTR8M | DOH → CMB | May 11, 13:10 UTC | May 11, 22:35 UTC | 9h 25m |
| 2026-05-10 | QTR5M | EBL → DOH | May 10, 21:00 UTC | May 11, 06:40 UTC | 9h 40m |
| 2026-05-10 | QTR87Q | ORD → DOH | May 10, 01:39 UTC | May 10, 14:09 UTC | 12h 30m |
| 2026-05-09 | QTR20V | DOH → ORD | May 9, 07:00 UTC | May 9, 21:45 UTC | 14h 45m |
| 2026-05-08 | QTR815 | HKG → DOH | May 8, 20:40 UTC | May 8, 22:50 UTC | 2h 10m |
| 2026-05-08 | QTR815 | HKG → DOH | May 8, 18:40 UTC | May 8, 18:55 UTC | 15m |
| 2026-05-08 | QTR818 | DOH → HKG | May 8, 07:50 UTC | May 8, 08:24 UTC | 35m |
| 2026-05-08 | QTR818 | DOH → HKG | May 8, 04:49 UTC | May 8, 05:49 UTC | 1h 0m |
| 2026-05-05 | QTR815 | HKG → DOH | May 5, 20:25 UTC | May 5, 22:25 UTC | 2h 0m |
| 2026-05-05 | QTR815 | HKG → DOH | May 5, 18:25 UTC | May 5, 18:35 UTC | 10m |
| 2026-05-05 | QTR818 | DOH → HKG | May 5, 07:30 UTC | May 5, 07:55 UTC | 25m |
| 2026-05-05 | QTR818 | DOH → HKG | May 5, 04:25 UTC | May 5, 05:35 UTC | 1h 10m |
| 2026-05-04 | QTR65R | SEA → DOH | May 4, 01:24 UTC | May 4, 13:35 UTC | 12h 10m |
| 2026-05-03 | QTR18F | BUD → DOH | May 3, 07:50 UTC | May 3, 21:50 UTC | 14h 0m |
| 2026-05-02 | QTR21L | LAX → LGG | May 2, 21:00 UTC | May 2, 21:30 UTC | 30m |
| 2026-05-02 | QTR21L | LAX → LGG | May 2, 15:25 UTC | May 2, 19:50 UTC | 4h 25m |
| 2026-05-02 | QTR7P | PHL → DOH | May 2, 05:15 UTC | May 2, 12:25 UTC | 7h 10m |
| 2026-05-01 | QTR65B | DFW → DOH | May 1, 23:05 UTC | May 2, 02:00 UTC | 2h 55m |
| 2026-05-01 | QTR93W | TRV → DOH | May 1, 17:55 UTC | May 1, 20:45 UTC | 2h 50m |
| 2026-05-01 | QTR29F | LHR → DOH | May 1, 07:50 UTC | May 1, 13:55 UTC | 6h 5m |
| 2026-04-30 | QTR40C | - | Apr 30, 22:20 UTC | May 1, 05:10 UTC | 6h 50m |
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-ANO page for operator, model, and routing details .