sensors Mode-S transponder
06A127
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-ANK · AIRBUS A-350-1000
- Hex
- 06A127
- Octal
- 01520447
- Decimal
- 434,471
- Country
- QA
- Tail
- A7-ANK
- Type
- A35K
- Flights observed
- 79
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 7h ago
Current position
Country allocation
The ICAO 24-bit address 06A127 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 |
|---|---|---|---|
| QTR52N | Qatar Airways | 6 | 2026-05-02 |
| QTR40X | - | 6 | 2026-05-29 |
| QTR780 | Qatar Airways | 4 | 2026-05-26 |
| QTR76A | Qatar Airways | 4 | 2026-05-19 |
| QTR53Y | - | 4 | 2026-05-02 |
| QTR4U | Qatar Airways | 4 | 2026-04-16 |
| QTR20R | Qatar Airways | 4 | 2026-05-22 |
| QTR818 | Qatar Airways | 3 | 2026-05-21 |
| QTR779 | Qatar Airways | 3 | 2026-05-25 |
| QTR706 | Qatar Airways | 3 | 2026-05-06 |
| QTR572 | Qatar Airways | 3 | 2026-04-29 |
| QTR27R | - | 3 | 2026-05-27 |
| QTR20V | Qatar Airways | 3 | 2026-05-28 |
| QTR15Q | Qatar Airways | 3 | 2026-05-05 |
| QTR93W | Qatar Airways | 2 | 2026-05-23 |
| QTR815 | Qatar Airways | 2 | 2026-05-21 |
| QTR7P | Qatar Airways | 2 | 2026-05-07 |
| QTR70E | Qatar Airways | 2 | 2026-04-26 |
| QTR65B | Qatar Airways | 2 | 2026-05-23 |
| QTR32N | Qatar Airways | 2 | 2026-04-29 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-05-29 | QTR40X | - | May 29, 21:00 UTC | May 29, 21:30 UTC | 30m |
| 2026-05-29 | QTR87Q | ORD → DOH | May 29, 00:50 UTC | May 29, 14:20 UTC | 13h 30m |
| 2026-05-28 | QTR20V | DOH → ORD | May 28, 09:50 UTC | May 28, 21:05 UTC | 11h 15m |
| 2026-05-27 | QTR20V | DOH → ORD | May 27, 21:10 UTC | May 28, 19:45 UTC | 22h 35m |
| 2026-05-27 | QTR27R | - | May 27, 11:05 UTC | May 27, 21:45 UTC | 10h 40m |
| 2026-05-26 | QTR40X | - | May 26, 21:04 UTC | May 27, 07:25 UTC | 10h 21m |
| 2026-05-26 | QTR780 | GRU → DOH | May 26, 12:14 UTC | May 26, 12:54 UTC | 40m |
| 2026-05-25 | QTR780 | GRU → DOH | May 25, 23:30 UTC | May 26, 00:35 UTC | 1h 5m |
| 2026-05-25 | QTR779 | DOH → GRU | May 25, 14:35 UTC | May 25, 16:15 UTC | 1h 40m |
| 2026-05-23 | QTR65B | DFW → DOH | May 23, 23:00 UTC | May 24, 02:00 UTC | 3h 0m |
| 2026-05-23 | QTR93W | TRV → DOH | May 23, 18:35 UTC | May 23, 20:55 UTC | 2h 20m |
| 2026-05-23 | QTR17E | - | May 23, 02:25 UTC | May 23, 14:20 UTC | 11h 54m |
| 2026-05-22 | QTR20R | DOH → JFK | May 22, 07:05 UTC | May 22, 20:00 UTC | 12h 55m |
| 2026-05-21 | QTR20R | DOH → JFK | May 21, 23:50 UTC | May 22, 20:00 UTC | 20h 10m |
| 2026-05-21 | QTR20R | DOH → JFK | May 21, 21:50 UTC | May 22, 20:00 UTC | 22h 10m |
| 2026-05-21 | QTR20R | DOH → JFK | May 21, 20:25 UTC | May 22, 19:45 UTC | 23h 20m |
| 2026-05-21 | QTR815 | HKG → DOH | May 21, 18:30 UTC | May 21, 18:40 UTC | 10m |
| 2026-05-21 | QTR818 | DOH → HKG | May 21, 02:00 UTC | May 21, 07:40 UTC | 5h 40m |
| 2026-05-20 | QTR51U | DFW → DOH | May 20, 06:45 UTC | May 20, 20:50 UTC | 14h 5m |
| 2026-05-19 | QTR76A | DOH → DFW | May 19, 00:30 UTC | May 19, 17:15 UTC | 16h 45m |
| 2026-05-18 | QTR76A | DOH → DFW | May 18, 17:50 UTC | May 19, 17:15 UTC | 23h 24m |
| 2026-05-18 | QTR76A | DOH → DFW | May 18, 15:50 UTC | May 19, 15:45 UTC | 23h 54m |
| 2026-05-18 | QTR76A | DOH → DFW | May 18, 15:10 UTC | May 19, 13:45 UTC | 22h 34m |
| 2026-05-17 | QTR65B | DFW → DOH | May 17, 23:00 UTC | May 17, 23:50 UTC | 50m |
| 2026-05-17 | QTR93W | TRV → DOH | May 17, 20:10 UTC | May 17, 20:40 UTC | 30m |
| 2026-05-16 | QTR27R | - | May 16, 11:25 UTC | May 16, 15:25 UTC | 4h 0m |
| 2026-05-16 | QTR40X | - | May 16, 06:31 UTC | May 16, 07:11 UTC | 40m |
| 2026-05-14 | QTR27R | - | May 14, 11:01 UTC | May 14, 21:40 UTC | 10h 40m |
| 2026-05-13 | QTR40X | - | May 13, 18:00 UTC | May 14, 07:00 UTC | 13h 0m |
| 2026-05-12 | QTR780 | GRU → DOH | May 12, 23:45 UTC | May 13, 13:00 UTC | 13h 15m |
| 2026-05-12 | QTR779 | DOH → GRU | May 12, 13:25 UTC | May 12, 15:01 UTC | 1h 35m |
| 2026-05-11 | QTR780 | GRU → DOH | May 11, 00:10 UTC | May 11, 01:15 UTC | 1h 5m |
| 2026-05-10 | QTR779 | DOH → GRU | May 10, 01:20 UTC | May 10, 14:59 UTC | 13h 40m |
| 2026-05-08 | QTR21L | LAX → LGG | May 8, 15:20 UTC | May 8, 21:25 UTC | 6h 5m |
| 2026-05-07 | QTR7P | PHL → DOH | May 7, 21:15 UTC | May 8, 12:39 UTC | 15h 25m |
| 2026-05-07 | QTR815 | HKG → DOH | May 7, 18:30 UTC | May 7, 18:45 UTC | 15m |
| 2026-05-07 | QTR818 | DOH → HKG | May 7, 07:45 UTC | May 7, 08:05 UTC | 20m |
| 2026-05-07 | QTR818 | DOH → HKG | May 7, 04:35 UTC | May 7, 05:35 UTC | 1h 0m |
| 2026-05-06 | QTR706 | JFK → DOH | May 6, 05:50 UTC | May 6, 17:40 UTC | 11h 49m |
| 2026-05-05 | QTR15Q | DOH → JFK | May 5, 12:55 UTC | May 6, 02:40 UTC | 13h 45m |
| 2026-05-04 | QTR8M | DOH → CMB | May 4, 12:50 UTC | May 4, 23:05 UTC | 10h 16m |
| 2026-05-03 | QTR5M | EBL → DOH | May 3, 18:05 UTC | May 4, 06:40 UTC | 12h 35m |
| 2026-05-02 | QTR53Y | MAN → DOH | May 2, 21:05 UTC | May 3, 03:45 UTC | 6h 39m |
| 2026-05-02 | QTR52N | ATL → DOH | May 2, 11:35 UTC | May 2, 18:50 UTC | 7h 15m |
| 2026-05-01 | QTR706 | JFK → DOH | May 1, 05:30 UTC | May 1, 17:35 UTC | 12h 5m |
| 2026-04-30 | QTR15Q | DOH → JFK | Apr 30, 12:00 UTC | May 1, 01:15 UTC | 13h 15m |
| 2026-04-29 | QTR32N | DOH → SJJ | Apr 29, 23:20 UTC | Apr 30, 03:05 UTC | 3h 45m |
| 2026-04-29 | QTR572 | DOH → BLR | Apr 29, 17:45 UTC | Apr 29, 21:25 UTC | 3h 40m |
| 2026-04-27 | QTR22B | DOH → JFK | Apr 27, 00:55 UTC | Apr 27, 15:15 UTC | 14h 20m |
| 2026-04-26 | QTR70E | TUN → DOH | Apr 26, 04:55 UTC | Apr 26, 21:10 UTC | 16h 15m |
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-ANK page for operator, model, and routing details .