sensors Mode-S transponder
7C4929
ICAO 24-bit transponder address · allocated to Australia
Currently assigned to VH-OQJ · AIRBUS A-380-800 · operated by QANTAS AIRWAYS LIMITED
- Hex
- 7C4929
- Octal
- 37044451
- Decimal
- 8,145,193
- Country
- AU
- Tail
- VH-OQJ
- Type
- A388
- Flights observed
- 131
- Distinct callsigns
- 12
- Country
- AU
- Last broadcast
- 6h ago
Last known position
Country allocation
The ICAO 24-bit address 7C4929 falls within the block assigned to Australia (AU) by ICAO Annex 10, Volume III. Every aircraft registered in Australia 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 12 distinct
Recent flights last 50
| Date | Flight | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|---|
| 2026-07-13 | QFA11 | - | Jul 13, 08:15 UTC | Jul 13, 21:20 UTC | 13h 5m |
| 2026-07-12 | QFA82 | - | Jul 12, 14:45 UTC | Jul 12, 20:20 UTC | 5h 35m |
| 2026-07-12 | QFA82 | - | Jul 12, 13:35 UTC | Jul 12, 13:45 UTC | 10m |
| 2026-07-12 | QFA81 | - | Jul 12, 01:25 UTC | Jul 12, 05:25 UTC | 4h 0m |
| 2026-07-11 | QFA12 | - | Jul 11, 07:00 UTC | Jul 11, 21:15 UTC | 14h 15m |
| 2026-07-10 | QFA11 | SYD → LAX | Jul 10, 08:10 UTC | Jul 10, 21:20 UTC | 13h 10m |
| 2026-07-09 | QFA64 | - | Jul 9, 17:10 UTC | Jul 10, 04:25 UTC | 11h 15m |
| 2026-07-09 | QFA63 | SYD → JNB | Jul 9, 00:30 UTC | Jul 9, 14:40 UTC | 14h 10m |
| 2026-07-08 | QFA12 | - | Jul 8, 07:00 UTC | Jul 8, 21:35 UTC | 14h 35m |
| 2026-07-06 | QFA93 | MEL → LAX | Jul 6, 03:35 UTC | Jul 6, 17:25 UTC | 13h 50m |
| 2026-07-05 | QFA94 | - | Jul 5, 17:35 UTC | Jul 5, 21:05 UTC | 3h 30m |
| 2026-07-05 | QFA94 | - | Jul 5, 06:15 UTC | Jul 5, 06:35 UTC | 20m |
| 2026-07-04 | QFA11 | SYD → LAX | Jul 4, 08:05 UTC | Jul 4, 21:10 UTC | 13h 5m |
| 2026-07-03 | QFA8 | DFW → SYD | Jul 3, 04:50 UTC | Jul 3, 21:00 UTC | 16h 10m |
| 2026-07-02 | QFA7 | SYD → DFW | Jul 2, 02:40 UTC | Jul 2, 17:15 UTC | 14h 35m |
| 2026-07-01 | QFA2 | - | Jul 1, 13:25 UTC | Jul 1, 19:05 UTC | 5h 40m |
| 2026-06-30 | QFA2 | - | Jun 30, 20:25 UTC | Jul 1, 08:50 UTC | 12h 25m |
| 2026-06-29 | QFA1 | - | Jun 29, 15:54 UTC | Jun 30, 05:20 UTC | 13h 26m |
| 2026-06-29 | QFA1 | - | Jun 29, 05:34 UTC | Jun 29, 06:05 UTC | 30m |
| 2026-06-28 | QFA8 | DFW → SYD | Jun 28, 04:44 UTC | Jun 28, 21:10 UTC | 16h 25m |
| 2026-06-27 | QFA7 | SYD → DFW | Jun 27, 05:25 UTC | Jun 27, 20:09 UTC | 14h 45m |
| 2026-06-26 | QFA82 | SIN → SYD | Jun 26, 13:34 UTC | Jun 26, 20:34 UTC | 7h 0m |
| 2026-06-26 | QFA81 | - | Jun 26, 03:15 UTC | Jun 26, 03:50 UTC | 35m |
| 2026-06-25 | QFA8 | DFW → SYD | Jun 25, 04:29 UTC | Jun 25, 20:34 UTC | 16h 5m |
| 2026-06-24 | QFA7 | SYD → DFW | Jun 24, 03:04 UTC | Jun 24, 17:45 UTC | 14h 40m |
| 2026-06-23 | QFA2 | - | Jun 23, 18:20 UTC | Jun 23, 19:04 UTC | 45m |
| 2026-06-22 | QFA2 | - | Jun 22, 20:34 UTC | Jun 23, 08:59 UTC | 12h 25m |
| 2026-06-21 | QFA1 | - | Jun 21, 17:15 UTC | Jun 22, 06:39 UTC | 13h 25m |
| 2026-06-21 | QFA1 | - | Jun 21, 13:15 UTC | Jun 21, 13:24 UTC | 10m |
| 2026-06-21 | QFA1 | - | Jun 21, 05:40 UTC | Jun 21, 06:19 UTC | 40m |
| 2026-06-20 | QFA12 | - | Jun 20, 20:34 UTC | Jun 20, 21:55 UTC | 1h 20m |
| 2026-06-20 | QFA12 | - | Jun 20, 07:49 UTC | Jun 20, 08:14 UTC | 25m |
| 2026-06-19 | QFA11 | - | Jun 19, 08:24 UTC | Jun 19, 21:19 UTC | 12h 55m |
| 2026-06-18 | QFA64 | - | Jun 18, 17:00 UTC | Jun 19, 04:29 UTC | 11h 29m |
| 2026-06-18 | QFA63 | - | Jun 18, 00:05 UTC | Jun 18, 14:01 UTC | 13h 55m |
| 2026-06-17 | QFA8 | DFW → SYD | Jun 17, 05:00 UTC | Jun 17, 21:15 UTC | 16h 15m |
| 2026-06-16 | QFA7 | SYD → DFW | Jun 16, 02:20 UTC | Jun 16, 17:05 UTC | 14h 45m |
| 2026-06-15 | QFA12 | - | Jun 15, 07:29 UTC | Jun 15, 21:50 UTC | 14h 20m |
| 2026-06-14 | QFA11 | SYD → LAX | Jun 14, 08:25 UTC | Jun 14, 21:30 UTC | 13h 5m |
| 2026-06-14 | QFA64 | JNB → SYD | Jun 14, 03:10 UTC | Jun 14, 04:45 UTC | 1h 36m |
| 2026-06-13 | QFA64 | JNB → SYD | Jun 13, 17:15 UTC | Jun 13, 17:35 UTC | 20m |
| 2026-06-13 | QFA63 | - | Jun 13, 00:10 UTC | Jun 13, 14:25 UTC | 14h 14m |
| 2026-06-12 | QFA12 | LAX → SYD | Jun 12, 20:25 UTC | Jun 12, 21:10 UTC | 45m |
| 2026-06-12 | QFA12 | LAX → SYD | Jun 12, 07:20 UTC | Jun 12, 07:40 UTC | 20m |
| 2026-06-10 | QFA11 | SYD → LAX | Jun 10, 09:00 UTC | Jun 10, 22:20 UTC | 13h 20m |
| 2026-06-09 | QFA2 | LHR → SIN | Jun 9, 18:30 UTC | Jun 9, 19:10 UTC | 40m |
| 2026-06-08 | QFA2 | LHR → SIN | Jun 8, 20:30 UTC | Jun 9, 08:55 UTC | 12h 25m |
| 2026-06-07 | QFA1 | SYD → SIN | Jun 7, 15:45 UTC | Jun 8, 05:25 UTC | 13h 40m |
| 2026-06-07 | QFA1 | SYD → SIN | Jun 7, 05:30 UTC | Jun 7, 06:05 UTC | 35m |
| 2026-06-06 | QFA2 | LHR → SIN | Jun 6, 18:25 UTC | Jun 6, 19:04 UTC | 40m |
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 VH-OQJ page for operator, model, and routing details .