sensors Mode-S transponder

7C6DE5

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-VZR · BOEING 737-800 · operated by QANTAS AIRWAYS LIMITED

Hex
7C6DE5
Octal
37066745
Decimal
8,154,597
Country
AU
Tail
VH-VZR
Type
B738
No current signal · last broadcast 23h ago
Flights observed
171
Distinct callsigns
20
Country
AU
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S 7C6DE5.

Country allocation

The ICAO 24-bit address 7C6DE5 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 20 distinct

Callsign Airline Flights Last seen
QFA164 Qantas 9 2026-05-27
QFA162 Qantas 6 2026-05-27
QFA161 Qantas 6 2026-05-27
QFA163 Qantas 5 2026-05-27
QFA937 Qantas 4 2026-05-12
QFA888 Qantas 4 2026-05-25
QFA137 Qantas 4 2026-05-26
QFA136 Qantas 4 2026-05-26
QFA143 Qantas 3 2026-05-27
QFA889 Qantas 2 2026-05-20
QFA887 Qantas 2 2026-05-18
QFA884 Qantas 2 2026-05-20
QFA837 Qantas 2 2026-05-15
QFA825 Qantas 2 2026-05-05
QFA741 Qantas 2 2026-05-22
QFA58 Qantas 2 2026-04-17
QFA57 Qantas 2 2026-05-05
QFA203 Qantas 2 2026-05-08
QFA198 Qantas 2 2026-05-06
QFA197 Qantas 2 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 QFA551 BNE → SYD May 29, 08:35 UTCMay 29, 09:45 UTC1h 10m
2026-05-29 QFA936 PER → BNE May 29, 03:40 UTCMay 29, 07:30 UTC3h 50m
2026-05-29 QFA1201 KGI → PER May 29, 01:20 UTCMay 29, 02:35 UTC1h 15m
2026-05-28 QFA1200 PER → KGI May 28, 23:05 UTCMay 29, 00:15 UTC1h 10m
2026-05-28 QFA943 BNE → PER May 28, 10:35 UTCMay 28, 16:00 UTC5h 25m
2026-05-28 QFA126 AKL → BNE May 28, 06:35 UTCMay 28, 07:40 UTC1h 5m
2026-05-28 QFA126 AKL → BNE May 28, 04:20 UTCMay 28, 04:35 UTC15m
2026-05-27 QFA143 SYD → AKL May 27, 23:40 UTCMay 28, 02:20 UTC2h 40m
2026-05-27 QFA162 WLG → SYD May 27, 20:55 UTCMay 27, 21:50 UTC55m
2026-05-27 QFA162 WLG → SYD May 27, 18:15 UTCMay 27, 18:30 UTC15m
2026-05-27 QFA163 SYD → WLG May 27, 09:00 UTCMay 27, 11:30 UTC2h 30m
2026-05-27 QFA164 WLG → SYD May 27, 06:34 UTCMay 27, 07:15 UTC41m
2026-05-27 QFA164 WLG → SYD May 27, 04:04 UTCMay 27, 04:09 UTC5m
2026-05-27 QFA161 SYD → WLG May 27, 02:19 UTCMay 27, 02:24 UTC5m
2026-05-27 QFA161 SYD → WLG May 27, 00:00 UTCMay 27, 00:25 UTC25m
2026-05-26 QFA138 CHC → SYD May 26, 20:50 UTCMay 26, 21:34 UTC45m
2026-05-26 QFA138 CHC → SYD May 26, 18:24 UTCMay 26, 18:40 UTC15m
2026-05-26 QFA139 SYD → CHC May 26, 13:19 UTCMay 26, 13:40 UTC20m
2026-05-26 QFA139 SYD → CHC May 26, 11:15 UTCMay 26, 11:44 UTC30m
2026-05-26 QFA136 CHC → SYD May 26, 08:59 UTCMay 26, 09:40 UTC40m
2026-05-26 QFA136 CHC → SYD May 26, 06:29 UTCMay 26, 06:39 UTC10m
2026-05-26 QFA137 SYD → CHC May 26, 04:54 UTCMay 26, 05:15 UTC20m
2026-05-26 QFA137 SYD → CHC May 26, 02:44 UTCMay 26, 03:09 UTC25m
2026-05-25 QFA732 ADL → SYD May 25, 21:19 UTCMay 25, 23:19 UTC2h 0m
2026-05-25 QFA888 PER → ADL May 25, 09:20 UTCMay 25, 12:00 UTC2h 40m
2026-05-25 QFA945 CBR → MEL May 25, 01:55 UTCMay 25, 06:10 UTC4h 15m
2026-05-24 QFA510 SYD → BNE May 24, 23:00 UTCMay 24, 23:46 UTC46m
2026-05-24 QFA501 BNE → SYD May 24, 20:20 UTCMay 24, 21:35 UTC1h 15m
2026-05-24 QFA554 SYD → BNE May 24, 10:25 UTCMay 24, 11:40 UTC1h 15m
2026-05-24 QFA468 MEL → SYD May 24, 07:00 UTCMay 24, 08:20 UTC1h 20m
2026-05-24 QFA625 BNE → MEL May 24, 03:30 UTCMay 24, 05:35 UTC2h 5m
2026-05-24 QFA518 SYD → BNE May 24, 00:40 UTCMay 24, 01:45 UTC1h 5m
2026-05-22 QFA515 BNE → SYD May 22, 23:30 UTCMay 23, 00:40 UTC1h 10m
2026-05-22 QFA504 SYD → BNE May 22, 21:10 UTCMay 22, 22:20 UTC1h 10m
2026-05-22 QFA746 ADL → SYD May 22, 09:45 UTCMay 22, 11:20 UTC1h 34m
2026-05-22 QFA741 SYD → ADL May 22, 06:50 UTCMay 22, 08:45 UTC1h 55m
2026-05-21 QFA591 OOL → SYD May 21, 23:40 UTCMay 22, 00:45 UTC1h 5m
2026-05-21 QFA590 PER → ADL May 21, 21:30 UTCMay 21, 22:30 UTC1h 0m
2026-05-21 QFA484 MEL → SYD May 21, 09:10 UTCMay 21, 10:15 UTC1h 5m
2026-05-21 QFA766 ADL → SYD May 21, 04:40 UTCMay 21, 08:00 UTC3h 20m
2026-05-20 QFA763 CBR → MEL May 20, 23:15 UTCMay 21, 03:10 UTC3h 55m
2026-05-20 QFA670 ADL → MEL May 20, 20:40 UTCMay 20, 21:45 UTC1h 5m
2026-05-20 QFA888 PER → ADL May 20, 09:15 UTCMay 20, 11:45 UTC2h 30m
2026-05-20 QFA889 ADL → PER May 20, 04:50 UTCMay 20, 07:55 UTC3h 5m
2026-05-20 QFA884 PER → ADL May 20, 01:10 UTCMay 20, 03:40 UTC2h 30m
2026-05-19 QFA883 SYD → CBR May 19, 20:40 UTCMay 19, 23:35 UTC2h 55m
2026-05-19 QFA888 PER → ADL May 19, 09:25 UTCMay 19, 12:00 UTC2h 35m
2026-05-18 QFA1217 KTA → PER May 18, 22:40 UTCMay 19, 03:25 UTC4h 45m
2026-05-18 QFA1216 MEL → CBR May 18, 22:25 UTCMay 18, 22:30 UTC5m
2026-05-18 QFA891 ADL → PER May 18, 09:40 UTCMay 18, 12:30 UTC2h 50m

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-VZR page for operator, model, and routing details .

Mode-S 7C6DE5 frequently asked

What is Mode-S code 7C6DE5?
7C6DE5 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-VZR.
Where is Mode-S 7C6DE5 registered?
Mode-S code 7C6DE5 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C6DE5 broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C6DE5, octal 37066745, decimal 8,154,597.
What flights does 7C6DE5 operate?
Mode-S 7C6DE5 has broadcast 20 distinct callsigns, including QFA164, QFA162, QFA161, QFA163, QFA937.