sensors Mode-S transponder
06A070
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-BAF · BOEING 777-300ER
- Hex
- 06A070
- Octal
- 01520160
- Decimal
- 434,288
- Country
- QA
- Tail
- A7-BAF
- Type
- B77W
- Flights observed
- 144
- Distinct callsigns
- 20
- Country
- QA
- Last broadcast
- 4h ago
Last known position
Country allocation
The ICAO 24-bit address 06A070 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 |
|---|---|---|---|
| QTR004 | - | 6 | 2026-06-12 |
| QTR003 | - | 6 | 2026-06-11 |
| QTR90C | Qatar Airways | 5 | 2026-07-07 |
| QTR809 | - | 5 | 2026-07-03 |
| QTR872 | - | 4 | 2026-07-14 |
| QTR848 | Qatar Airways | 4 | 2026-04-24 |
| QTR808 | - | 4 | 2026-07-02 |
| QTR36A | - | 4 | 2026-07-08 |
| QTR8M | - | 3 | 2026-06-24 |
| QTR826 | Qatar Airways | 3 | 2026-05-05 |
| QTR817 | Qatar Airways | 3 | 2026-04-17 |
| QTR814 | Qatar Airways | 3 | 2026-04-17 |
| QTR79Y | - | 3 | 2026-05-08 |
| QTR65L | Qatar Airways | 3 | 2026-05-08 |
| QTR38P | Qatar Airways | 3 | 2026-06-09 |
| QTR915 | - | 2 | 2026-07-13 |
| QTR914 | - | 2 | 2026-07-12 |
| QTR87Q | Qatar Airways | 2 | 2026-06-19 |
| QTR875 | Qatar Airways | 2 | 2026-04-22 |
| QTR871 | Qatar Airways | 2 | 2026-04-18 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-14 | QTR872 | - | Jul 14, 06:25 UTC | Jul 14, 12:05 UTC | 5h 40m |
| 2026-07-13 | QTR3X | - | Jul 13, 12:30 UTC | Jul 14, 01:20 UTC | 12h 50m |
| 2026-07-13 | QTR915 | - | Jul 13, 05:25 UTC | Jul 13, 10:00 UTC | 4h 35m |
| 2026-07-12 | QTR914 | ADL → AKL | Jul 12, 07:45 UTC | Jul 12, 11:20 UTC | 3h 35m |
| 2026-07-11 | QTR55Y | - | Jul 11, 17:30 UTC | Jul 12, 05:50 UTC | 12h 20m |
| 2026-07-11 | QTR27L | - | Jul 11, 10:10 UTC | Jul 11, 13:15 UTC | 3h 5m |
| 2026-07-11 | QTR33E | - | Jul 11, 05:40 UTC | Jul 11, 07:50 UTC | 2h 10m |
| 2026-07-10 | QTR3X | - | Jul 10, 12:35 UTC | Jul 11, 01:35 UTC | 13h 0m |
| 2026-07-10 | QTR915 | - | Jul 10, 05:15 UTC | Jul 10, 09:25 UTC | 4h 10m |
| 2026-07-09 | QTR914 | ADL → AKL | Jul 9, 07:40 UTC | Jul 9, 11:25 UTC | 3h 45m |
| 2026-07-08 | QTR55Y | - | Jul 8, 17:25 UTC | Jul 9, 05:45 UTC | 12h 20m |
| 2026-07-08 | QTR36A | - | Jul 8, 02:05 UTC | Jul 8, 08:40 UTC | 6h 35m |
| 2026-07-07 | QTR90C | DOH → IAD | Jul 7, 16:25 UTC | Jul 7, 23:35 UTC | 7h 10m |
| 2026-07-07 | QTR65R | - | Jul 7, 01:15 UTC | Jul 7, 13:40 UTC | 12h 25m |
| 2026-07-06 | QTR18F | - | Jul 6, 06:15 UTC | Jul 6, 20:00 UTC | 13h 45m |
| 2026-07-05 | QTR67H | SKT → DOH | Jul 5, 19:00 UTC | Jul 6, 01:10 UTC | 6h 10m |
| 2026-07-05 | QTR1F | DOH → LHR | Jul 5, 10:05 UTC | Jul 5, 16:45 UTC | 6h 40m |
| 2026-07-04 | QTR30J | JFK → DOH | Jul 4, 15:50 UTC | Jul 5, 03:35 UTC | 11h 45m |
| 2026-07-04 | QTR72P | DOH → DFW | Jul 4, 01:25 UTC | Jul 4, 12:40 UTC | 11h 15m |
| 2026-07-03 | QTR809 | NRT → DOH | Jul 3, 08:55 UTC | Jul 3, 19:30 UTC | 10h 35m |
| 2026-07-02 | QTR808 | - | Jul 2, 18:00 UTC | Jul 3, 01:20 UTC | 7h 20m |
| 2026-07-02 | QTR17E | - | Jul 2, 02:45 UTC | Jul 2, 14:50 UTC | 12h 5m |
| 2026-07-01 | QTR20R | DOH → JFK | Jul 1, 05:45 UTC | Jul 1, 19:00 UTC | 13h 15m |
| 2026-06-30 | QTR893 | - | Jun 30, 18:10 UTC | Jul 1, 02:10 UTC | 8h 0m |
| 2026-06-29 | QTR892 | - | Jun 29, 22:39 UTC | Jun 29, 23:29 UTC | 50m |
| 2026-06-29 | QTR809 | - | Jun 29, 09:00 UTC | Jun 29, 15:54 UTC | 6h 55m |
| 2026-06-28 | QTR808 | - | Jun 28, 18:00 UTC | Jun 29, 04:00 UTC | 10h 0m |
| 2026-06-28 | QTR77A | IAD → DOH | Jun 28, 00:55 UTC | Jun 28, 13:40 UTC | 12h 45m |
| 2026-06-27 | QTR18F | - | Jun 27, 05:55 UTC | Jun 27, 19:24 UTC | 13h 30m |
| 2026-06-26 | QTR807 | - | Jun 26, 13:45 UTC | Jun 27, 00:25 UTC | 10h 40m |
| 2026-06-26 | QTR806 | - | Jun 26, 00:15 UTC | Jun 26, 10:05 UTC | 9h 50m |
| 2026-06-25 | QTR21L | - | Jun 25, 15:29 UTC | Jun 25, 21:44 UTC | 6h 15m |
| 2026-06-25 | QTR24H | DOH → LHR | Jun 25, 06:40 UTC | Jun 25, 13:20 UTC | 6h 40m |
| 2026-06-24 | QTR8M | - | Jun 24, 13:00 UTC | Jun 25, 02:25 UTC | 13h 25m |
| 2026-06-23 | QTR5M | - | Jun 23, 18:10 UTC | Jun 24, 07:05 UTC | 12h 55m |
| 2026-06-23 | QTR36A | - | Jun 23, 02:15 UTC | Jun 23, 06:34 UTC | 4h 20m |
| 2026-06-22 | QTR90C | DOH → IAD | Jun 22, 16:54 UTC | Jun 23, 00:00 UTC | 7h 5m |
| 2026-06-22 | QTR17E | JFK → DOH | Jun 22, 02:40 UTC | Jun 22, 14:45 UTC | 12h 5m |
| 2026-06-21 | QTR20R | DOH → JFK | Jun 21, 05:59 UTC | Jun 21, 19:05 UTC | 13h 5m |
| 2026-06-21 | QTR8M | - | Jun 21, 01:59 UTC | Jun 21, 02:20 UTC | 20m |
| 2026-06-20 | QTR8M | - | Jun 20, 12:54 UTC | Jun 20, 22:59 UTC | 10h 5m |
| 2026-06-20 | QTR5M | - | Jun 20, 03:39 UTC | Jun 20, 07:09 UTC | 3h 30m |
| 2026-06-19 | QTR87Q | ORD → DOH | Jun 19, 14:04 UTC | Jun 19, 14:34 UTC | 30m |
| 2026-06-19 | QTR87Q | ORD → DOH | Jun 19, 01:15 UTC | Jun 19, 11:54 UTC | 10h 40m |
| 2026-06-18 | QTR20V | - | Jun 18, 08:00 UTC | Jun 18, 19:55 UTC | 11h 55m |
| 2026-06-17 | QTR16M | - | Jun 17, 12:40 UTC | Jun 18, 02:35 UTC | 13h 55m |
| 2026-06-16 | QTR74V | - | Jun 16, 21:15 UTC | Jun 17, 07:05 UTC | 9h 50m |
| 2026-06-16 | QTR720 | - | Jun 16, 00:29 UTC | Jun 16, 14:50 UTC | 14h 20m |
| 2026-06-14 | QTR21X | DOH → SEA | Jun 14, 19:45 UTC | Jun 15, 13:05 UTC | 17h 19m |
| 2026-06-14 | QTR836 | DOH → BKK | Jun 14, 04:45 UTC | Jun 14, 07:15 UTC | 2h 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-BAF page for operator, model, and routing details .