sensors Mode-S transponder
06A066
ICAO 24-bit transponder address · allocated to Qatar
Currently assigned to A7-BBA · BOEING 777-200LR
- Hex
- 06A066
- Octal
- 01520146
- Decimal
- 434,278
- Country
- QA
- Tail
- A7-BBA
- Type
- B77L
- Flights observed
- 51
- Distinct callsigns
- 14
- Country
- QA
- Last broadcast
- 4h ago
Current position
Country allocation
The ICAO 24-bit address 06A066 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 14 distinct
| Callsign | Airline | Flights | Last seen |
|---|---|---|---|
| QTR22B | Qatar Airways | 7 | 2026-05-26 |
| QTR70E | Qatar Airways | 6 | 2026-05-25 |
| QTR68T | Qatar Airways | 6 | 2026-05-31 |
| QTR1X | Qatar Airways | 5 | 2026-06-05 |
| QTR58G | Qatar Airways | 4 | 2026-06-04 |
| QTR51U | Qatar Airways | 4 | 2026-06-03 |
| QTR21X | Qatar Airways | 4 | 2026-05-30 |
| QTR18F | Qatar Airways | 4 | 2026-04-25 |
| QTR65R | Qatar Airways | 3 | 2026-04-26 |
| QTR774 | Qatar Airways | 2 | 2026-05-08 |
| QTR773 | Qatar Airways | 2 | 2026-05-07 |
| QTR76A | Qatar Airways | 2 | 2026-06-01 |
| QTR1169 | Qatar Airways | 1 | 2026-06-01 |
| QTR1168 | Qatar Airways | 1 | 2026-05-31 |
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-06-05 | QTR1X | DOH → LHR | Jun 5, 01:30 UTC | Jun 5, 05:15 UTC | 3h 45m |
| 2026-06-04 | QTR58G | DOH → IAH | Jun 4, 09:05 UTC | Jun 4, 21:40 UTC | 12h 35m |
| 2026-06-03 | QTR51U | DFW → DOH | Jun 3, 04:15 UTC | Jun 3, 18:35 UTC | 14h 20m |
| 2026-06-01 | QTR76A | DOH → DFW | Jun 1, 23:25 UTC | Jun 2, 14:50 UTC | 15h 25m |
| 2026-06-01 | QTR1169 | RUH → DOH | Jun 1, 00:05 UTC | Jun 1, 00:35 UTC | 30m |
| 2026-05-31 | QTR1168 | DOH → RUH | May 31, 19:05 UTC | May 31, 19:25 UTC | 20m |
| 2026-05-31 | QTR68T | SEA → DOH | May 31, 00:35 UTC | May 31, 14:45 UTC | 14h 10m |
| 2026-05-30 | QTR21X | DOH → SEA | May 30, 08:55 UTC | May 30, 21:15 UTC | 12h 20m |
| 2026-05-28 | QTR1X | DOH → LHR | May 28, 15:55 UTC | May 28, 16:25 UTC | 30m |
| 2026-05-28 | QTR1X | DOH → LHR | May 28, 01:50 UTC | May 28, 13:05 UTC | 11h 15m |
| 2026-05-27 | QTR58G | DOH → IAH | May 27, 09:00 UTC | May 27, 22:35 UTC | 13h 35m |
| 2026-05-26 | QTR22B | DOH → JFK | May 26, 02:35 UTC | May 26, 17:05 UTC | 14h 30m |
| 2026-05-25 | QTR70E | TUN → DOH | May 25, 11:10 UTC | May 25, 23:40 UTC | 12h 29m |
| 2026-05-24 | QTR70E | TUN → DOH | May 24, 15:35 UTC | May 25, 15:10 UTC | 23h 35m |
| 2026-05-24 | QTR70E | TUN → DOH | May 24, 13:35 UTC | May 25, 13:30 UTC | 23h 55m |
| 2026-05-24 | QTR51U | DFW → DOH | May 24, 12:25 UTC | May 25, 11:30 UTC | 23h 5m |
| 2026-05-24 | QTR51U | DFW → DOH | May 24, 05:00 UTC | May 24, 16:55 UTC | 11h 55m |
| 2026-05-22 | QTR76A | DOH → DFW | May 22, 23:45 UTC | May 23, 16:35 UTC | 16h 49m |
| 2026-05-22 | QTR51U | DFW → DOH | May 22, 04:35 UTC | May 22, 18:55 UTC | 14h 20m |
| 2026-05-20 | QTR22B | DOH → JFK | May 20, 08:30 UTC | May 20, 15:15 UTC | 6h 45m |
| 2026-05-20 | QTR22B | DOH → JFK | May 20, 01:15 UTC | May 20, 04:45 UTC | 3h 31m |
| 2026-05-19 | QTR70E | TUN → DOH | May 19, 09:25 UTC | May 19, 22:15 UTC | 12h 50m |
| 2026-05-18 | QTR1X | DOH → LHR | May 18, 01:40 UTC | May 18, 15:55 UTC | 14h 15m |
| 2026-05-17 | QTR58G | DOH → IAH | May 17, 09:15 UTC | May 17, 22:45 UTC | 13h 30m |
| 2026-05-16 | QTR22B | DOH → JFK | May 16, 00:50 UTC | May 16, 14:51 UTC | 14h 1m |
| 2026-05-14 | QTR22B | DOH → JFK | May 14, 00:45 UTC | May 14, 11:45 UTC | 11h 0m |
| 2026-05-13 | QTR70E | TUN → DOH | May 13, 10:55 UTC | May 13, 20:25 UTC | 9h 30m |
| 2026-05-12 | QTR68T | SEA → DOH | May 12, 11:35 UTC | May 13, 11:30 UTC | 23h 55m |
| 2026-05-12 | QTR68T | SEA → DOH | May 12, 03:00 UTC | May 12, 12:20 UTC | 9h 20m |
| 2026-05-10 | QTR68T | SEA → DOH | May 10, 00:24 UTC | May 10, 14:25 UTC | 14h 0m |
| 2026-05-09 | QTR21X | DOH → SEA | May 9, 10:05 UTC | May 9, 21:40 UTC | 11h 35m |
| 2026-05-08 | QTR774 | GRU → DOH | May 8, 05:14 UTC | May 8, 19:15 UTC | 14h 0m |
| 2026-05-07 | QTR773 | DOH → GRU | May 7, 20:45 UTC | May 7, 22:10 UTC | 1h 25m |
| 2026-05-06 | QTR22B | DOH → JFK | May 6, 00:46 UTC | May 6, 15:00 UTC | 14h 15m |
| 2026-05-04 | QTR22B | DOH → JFK | May 4, 00:55 UTC | May 4, 15:15 UTC | 14h 20m |
| 2026-05-03 | QTR70E | TUN → DOH | May 3, 05:10 UTC | May 3, 20:35 UTC | 15h 25m |
| 2026-05-02 | QTR1X | DOH → LHR | May 2, 02:15 UTC | May 2, 16:30 UTC | 14h 15m |
| 2026-05-01 | QTR58G | DOH → IAH | May 1, 06:30 UTC | May 1, 23:15 UTC | 16h 45m |
| 2026-04-29 | QTR68T | SEA → DOH | Apr 29, 23:50 UTC | Apr 30, 14:10 UTC | 14h 20m |
| 2026-04-29 | QTR21X | DOH → SEA | Apr 29, 04:44 UTC | Apr 29, 20:10 UTC | 15h 26m |
| 2026-04-27 | QTR68T | SEA → DOH | Apr 27, 23:55 UTC | Apr 28, 14:25 UTC | 14h 30m |
| 2026-04-27 | QTR21X | DOH → SEA | Apr 27, 05:00 UTC | Apr 27, 20:30 UTC | 15h 30m |
| 2026-04-26 | QTR65R | SEA → DOH | Apr 26, 01:15 UTC | Apr 26, 14:25 UTC | 13h 10m |
| 2026-04-25 | QTR18F | BUD → DOH | Apr 25, 07:05 UTC | Apr 25, 20:55 UTC | 13h 50m |
| 2026-04-23 | QTR774 | GRU → DOH | Apr 23, 05:20 UTC | Apr 23, 18:50 UTC | 13h 29m |
| 2026-04-22 | QTR773 | DOH → GRU | Apr 22, 06:55 UTC | Apr 22, 21:50 UTC | 14h 55m |
| 2026-04-21 | QTR65R | SEA → DOH | Apr 21, 01:40 UTC | Apr 21, 14:25 UTC | 12h 45m |
| 2026-04-20 | QTR18F | BUD → DOH | Apr 20, 07:05 UTC | Apr 20, 22:05 UTC | 15h 0m |
| 2026-04-19 | QTR65R | SEA → DOH | Apr 19, 01:10 UTC | Apr 19, 14:25 UTC | 13h 15m |
| 2026-04-18 | QTR18F | BUD → DOH | Apr 18, 07:25 UTC | Apr 18, 07:50 UTC | 25m |
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-BBA page for operator, model, and routing details .