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sensors Mode-S transponder

7C7A68

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-YGQ · CESSNA 172 Skyhawk · operated by SINGAPORE FLYING COLLEGE PTE LTD

Hex
7C7A68
Octal
37075150
Decimal
8,157,800
Country
AU
Tail
VH-YGQ
Type
C172
No current signal · last broadcast Jul 24, 00:35 UTC
Flights observed
224
Distinct callsigns
1
Country
AU
Last broadcast
Jul 24, 00:35 UTC

Last known position

Most recent position reported by Mode-S 7C7A68.

Country allocation

The ICAO 24-bit address 7C7A68 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 1 distinct

Callsign Airline Flights Last seen
YGQ - 224 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 YGQ - Jul 23, 23:50 UTCJul 24, 00:30 UTC40m
2026-07-23 YGQ TMW → TMW Jul 23, 22:20 UTCJul 23, 23:05 UTC45m
2026-07-23 YGQ TMW → TMW Jul 23, 06:15 UTCJul 23, 07:15 UTC1h 0m
2026-07-23 YGQ TMW → TMW Jul 23, 03:55 UTCJul 23, 05:05 UTC1h 10m
2026-07-22 YGQ TMW → TMW Jul 22, 23:55 UTCJul 23, 01:50 UTC1h 55m
2026-07-22 YGQ TMW → TMW Jul 22, 04:05 UTCJul 22, 05:05 UTC1h 0m
2026-07-22 YGQ TMW → TMW Jul 22, 00:20 UTCJul 22, 01:05 UTC45m
2026-07-21 YGQ TMW → TMW Jul 21, 22:00 UTCJul 21, 22:50 UTC50m
2026-07-21 YGQ TMW → TMW Jul 21, 03:25 UTCJul 21, 04:15 UTC50m
2026-07-21 YGQ TMW → TMW Jul 21, 00:40 UTCJul 21, 01:45 UTC1h 5m
2026-07-20 YGQ TMW → TMW Jul 20, 22:05 UTCJul 20, 22:50 UTC45m
2026-07-20 YGQ TMW → TMW Jul 20, 07:35 UTCJul 20, 09:55 UTC2h 20m
2026-07-20 YGQ TMW → TMW Jul 20, 02:45 UTCJul 20, 04:25 UTC1h 40m
2026-07-19 YGQ TMW → TMW Jul 19, 22:20 UTCJul 20, 00:05 UTC1h 45m
2026-07-17 YGQ TMW → TMW Jul 17, 06:29 UTCJul 17, 07:25 UTC55m
2026-07-17 YGQ - Jul 17, 03:20 UTCJul 17, 04:04 UTC45m
2026-07-17 YGQ TMW → TMW Jul 17, 00:30 UTCJul 17, 02:39 UTC2h 10m
2026-07-16 YGQ TMW → TMW Jul 16, 22:25 UTCJul 16, 23:05 UTC40m
2026-07-16 YGQ TMW → TMW Jul 16, 08:25 UTCJul 16, 09:15 UTC50m
2026-07-16 YGQ TMW → TMW Jul 16, 05:25 UTCJul 16, 06:05 UTC40m
2026-07-16 YGQ TMW → TMW Jul 16, 02:30 UTCJul 16, 03:10 UTC40m
2026-07-16 YGQ TMW → TMW Jul 16, 01:00 UTCJul 16, 01:25 UTC25m
2026-07-16 YGQ TMW → TMW Jul 16, 00:05 UTCJul 16, 00:40 UTC35m
2026-07-15 YGQ TMW → TMW Jul 15, 22:35 UTCJul 15, 22:40 UTC5m
2026-07-15 YGQ TMW → TMW Jul 15, 21:55 UTCJul 15, 22:15 UTC20m
2026-07-15 YGQ - Jul 15, 09:55 UTCJul 15, 10:45 UTC50m
2026-07-15 YGQ TMW → TMW Jul 15, 08:45 UTCJul 15, 09:10 UTC25m
2026-07-15 YGQ TMW → TMW Jul 15, 05:50 UTCJul 15, 06:35 UTC45m
2026-07-15 YGQ TMW → TMW Jul 15, 03:25 UTCJul 15, 04:00 UTC35m
2026-07-15 YGQ TMW → TMW Jul 15, 00:20 UTCJul 15, 00:55 UTC35m
2026-07-14 YGQ TMW → TMW Jul 14, 22:05 UTCJul 14, 23:10 UTC1h 4m
2026-07-14 YGQ TMW → TMW Jul 14, 08:35 UTCJul 14, 09:10 UTC35m
2026-07-14 YGQ TMW → TMW Jul 14, 03:30 UTCJul 14, 04:10 UTC40m
2026-07-14 YGQ - Jul 14, 00:55 UTCJul 14, 01:10 UTC15m
2026-07-14 YGQ TMW → TMW Jul 14, 00:35 UTCJul 14, 00:50 UTC15m
2026-07-13 YGQ TMW → TMW Jul 13, 22:10 UTCJul 13, 23:10 UTC1h 0m
2026-07-13 YGQ TMW → TMW Jul 13, 05:31 UTCJul 13, 06:01 UTC30m
2026-07-13 YGQ TMW → TMW Jul 13, 04:40 UTCJul 13, 05:15 UTC35m
2026-07-13 YGQ TMW → TMW Jul 13, 01:30 UTCJul 13, 02:05 UTC35m
2026-07-12 YGQ TMW → TMW Jul 12, 22:55 UTCJul 12, 23:45 UTC50m
2026-07-10 YGQ TMW → TMW Jul 10, 04:50 UTCJul 10, 05:30 UTC40m
2026-07-10 YGQ TMW → TMW Jul 10, 00:25 UTCJul 10, 01:10 UTC45m
2026-07-09 YGQ - Jul 9, 09:10 UTCJul 9, 09:30 UTC20m
2026-07-09 YGQ TMW → TMW Jul 9, 08:10 UTCJul 9, 08:45 UTC35m
2026-07-09 YGQ TMW → TMW Jul 9, 02:40 UTCJul 9, 03:40 UTC1h 0m
2026-07-09 YGQ TMW → TMW Jul 9, 00:10 UTCJul 9, 00:50 UTC40m
2026-07-08 YGQ TMW → TMW Jul 8, 22:35 UTCJul 8, 23:05 UTC30m
2026-07-08 YGQ TMW → TMW Jul 8, 11:10 UTCJul 8, 12:15 UTC1h 5m
2026-07-08 YGQ TMW → TMW Jul 8, 02:25 UTCJul 8, 03:20 UTC55m
2026-07-06 YGQ - Jul 6, 23:10 UTCJul 6, 23:15 UTC5m

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

Mode-S 7C7A68 frequently asked

What is Mode-S code 7C7A68?
7C7A68 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-YGQ.
Where is Mode-S 7C7A68 registered?
Mode-S code 7C7A68 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C7A68 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 00:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C7A68, octal 37075150, decimal 8,157,800.
What flights does 7C7A68 operate?
Mode-S 7C7A68 has broadcast 1 distinct callsign, including YGQ.