sensors Mode-S transponder
06A071
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-BAG · BOEING 777-300ER
- Hex
- 06A071
- Octal
- 01520161
- Decimal
- 434,289
- Country
- QA
- Tail
- A7-BAG
- Type
- B77W
- Flights observed
- 180
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 2h ago
Last known position
Country allocation
The ICAO 24-bit address 06A071 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 |
|---|---|---|---|
| QTR807 | Qatar Airways | 13 | 2026-06-03 |
| QTR806 | Qatar Airways | 9 | 2026-06-03 |
| QTR79Y | - | 7 | 2026-04-18 |
| QTR21X | - | 7 | 2026-07-11 |
| QTR817 | Qatar Airways | 5 | 2026-05-26 |
| QTR65L | Qatar Airways | 5 | 2026-04-18 |
| QTR004 | - | 5 | 2026-06-14 |
| QTR8M | - | 4 | 2026-07-14 |
| QTR875 | Qatar Airways | 4 | 2026-05-30 |
| QTR5M | - | 4 | 2026-07-08 |
| QTR1V | Qatar Airways | 4 | 2026-04-15 |
| QTR1J | Qatar Airways | 4 | 2026-04-14 |
| QTR871 | Qatar Airways | 3 | 2026-05-01 |
| QTR827 | Qatar Airways | 3 | 2026-04-17 |
| QTR826 | Qatar Airways | 3 | 2026-04-17 |
| QTR814 | Qatar Airways | 3 | 2026-05-25 |
| QTR74V | - | 3 | 2026-07-06 |
| QTR73P | Qatar Airways | 3 | 2026-06-15 |
| QTR68T | - | 3 | 2026-07-12 |
| QTR5Y | Qatar Airways | 3 | 2026-06-07 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | QTR8M | - | Jul 14, 13:05 UTC | Jul 14, 14:10 UTC | 1h 5m |
| 2026-07-13 | QTR19E | DOH → MEL | Jul 13, 17:50 UTC | Jul 14, 07:00 UTC | 13h 10m |
| 2026-07-13 | QTR36A | - | Jul 13, 02:05 UTC | Jul 13, 08:35 UTC | 6h 30m |
| 2026-07-12 | QTR90C | - | Jul 12, 23:50 UTC | Jul 13, 00:05 UTC | 15m |
| 2026-07-12 | QTR90C | - | Jul 12, 17:15 UTC | Jul 12, 19:50 UTC | 2h 35m |
| 2026-07-12 | QTR68T | - | Jul 12, 00:40 UTC | Jul 12, 15:01 UTC | 14h 20m |
| 2026-07-11 | QTR21X | - | Jul 11, 06:01 UTC | Jul 11, 20:35 UTC | 14h 35m |
| 2026-07-10 | QTR67H | - | Jul 10, 18:55 UTC | Jul 11, 00:55 UTC | 6h 0m |
| 2026-07-10 | QTR1F | - | Jul 10, 11:55 UTC | Jul 10, 16:35 UTC | 4h 40m |
| 2026-07-10 | QTR1F | - | Jul 10, 09:55 UTC | Jul 10, 11:50 UTC | 1h 55m |
| 2026-07-09 | QTR8M | - | Jul 9, 13:15 UTC | Jul 10, 02:45 UTC | 13h 30m |
| 2026-07-08 | QTR5M | - | Jul 8, 18:00 UTC | Jul 9, 06:50 UTC | 12h 50m |
| 2026-07-07 | QTR16M | - | Jul 7, 12:30 UTC | Jul 8, 02:35 UTC | 14h 5m |
| 2026-07-06 | QTR74V | - | Jul 6, 18:05 UTC | Jul 7, 07:20 UTC | 13h 15m |
| 2026-07-06 | QTR27L | - | Jul 6, 10:30 UTC | Jul 6, 13:35 UTC | 3h 5m |
| 2026-07-06 | QTR7J | DOH → FRA | Jul 6, 05:50 UTC | Jul 6, 08:15 UTC | 2h 25m |
| 2026-07-05 | QTR27R | - | Jul 5, 11:00 UTC | Jul 6, 01:05 UTC | 14h 5m |
| 2026-07-04 | QTR40X | - | Jul 4, 17:40 UTC | Jul 5, 07:00 UTC | 13h 20m |
| 2026-07-04 | QTR17E | - | Jul 4, 02:55 UTC | Jul 4, 14:50 UTC | 11h 55m |
| 2026-07-03 | QTR20R | DOH → JFK | Jul 3, 05:45 UTC | Jul 3, 19:10 UTC | 13h 25m |
| 2026-07-02 | QTR32N | DOH → SJJ | Jul 2, 22:35 UTC | Jul 3, 02:00 UTC | 3h 25m |
| 2026-07-02 | QTR572 | - | Jul 2, 17:05 UTC | Jul 2, 20:35 UTC | 3h 30m |
| 2026-07-02 | QTR68T | - | Jul 2, 00:10 UTC | Jul 2, 14:40 UTC | 14h 30m |
| 2026-07-01 | QTR21X | - | Jul 1, 05:15 UTC | Jul 1, 19:45 UTC | 14h 30m |
| 2026-06-30 | QTR8M | MEL → DOH | Jun 30, 13:05 UTC | Jul 1, 02:55 UTC | 13h 50m |
| 2026-06-29 | QTR5M | - | Jun 29, 17:40 UTC | Jun 30, 06:35 UTC | 12h 56m |
| 2026-06-29 | QTR77A | IAD → DOH | Jun 29, 00:39 UTC | Jun 29, 13:24 UTC | 12h 45m |
| 2026-06-28 | QTR18F | DOH → IAD | Jun 28, 05:49 UTC | Jun 28, 19:34 UTC | 13h 45m |
| 2026-06-27 | QTR1396 | - | Jun 27, 14:35 UTC | Jun 27, 21:19 UTC | 6h 45m |
| 2026-06-27 | QTR46M | - | Jun 27, 05:19 UTC | Jun 27, 12:04 UTC | 6h 45m |
| 2026-06-26 | QTR16M | - | Jun 26, 12:34 UTC | Jun 27, 02:29 UTC | 13h 55m |
| 2026-06-25 | QTR74V | - | Jun 25, 21:20 UTC | Jun 26, 07:35 UTC | 10h 15m |
| 2026-06-25 | QTR74V | - | Jun 25, 10:20 UTC | Jun 26, 07:35 UTC | 21h 15m |
| 2026-06-25 | QTR29R | CDG → DOH | Jun 25, 08:20 UTC | Jun 26, 07:35 UTC | 23h 15m |
| 2026-06-25 | QTR29R | CDG → DOH | Jun 25, 07:54 UTC | Jun 25, 21:59 UTC | 14h 5m |
| 2026-06-25 | QTR38P | DOH → MAN | Jun 25, 00:40 UTC | Jun 25, 05:00 UTC | 4h 20m |
| 2026-06-24 | QTR29R | CDG → DOH | Jun 24, 07:50 UTC | Jun 24, 13:44 UTC | 5h 55m |
| 2026-06-23 | QTR38P | DOH → MAN | Jun 23, 22:44 UTC | Jun 24, 04:59 UTC | 6h 15m |
| 2026-06-23 | QTR809 | - | Jun 23, 08:35 UTC | Jun 23, 19:19 UTC | 10h 45m |
| 2026-06-22 | QTR808 | - | Jun 22, 17:55 UTC | Jun 22, 18:40 UTC | 45m |
| 2026-06-22 | QTR1248 | - | Jun 22, 10:15 UTC | Jun 22, 15:40 UTC | 5h 25m |
| 2026-06-21 | QTR8M | MEL → DOH | Jun 21, 12:55 UTC | Jun 22, 02:40 UTC | 13h 45m |
| 2026-06-20 | QTR5M | DOH → MEL | Jun 20, 17:49 UTC | Jun 21, 07:09 UTC | 13h 20m |
| 2026-06-20 | QTR87Q | ORD → DOH | Jun 20, 01:24 UTC | Jun 20, 14:44 UTC | 13h 20m |
| 2026-06-19 | QTR20V | - | Jun 19, 07:54 UTC | Jun 19, 19:54 UTC | 12h 0m |
| 2026-06-18 | QTR20V | - | Jun 18, 22:20 UTC | Jun 19, 19:54 UTC | 21h 34m |
| 2026-06-18 | QTR20V | - | Jun 18, 13:00 UTC | Jun 19, 12:14 UTC | 23h 14m |
| 2026-06-17 | QTR5M | - | Jun 17, 21:00 UTC | Jun 18, 07:00 UTC | 10h 0m |
| 2026-06-17 | QTR68T | SEA → DOH | Jun 17, 00:50 UTC | Jun 17, 15:30 UTC | 14h 40m |
| 2026-06-16 | QTR21X | DOH → SEA | Jun 16, 07:25 UTC | Jun 16, 20:15 UTC | 12h 51m |
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-BAG page for operator, model, and routing details .