Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

7C1AC2

ICAO 24-bit transponder address · allocated to Australia

Currently assigned to VH-FKK · FOKKER 100 · operated by ALLIANCE AIRLINES PTY LIMITED

Hex
7C1AC2
Octal
37015302
Decimal
8,133,314
Country
AU
Tail
VH-FKK
Type
F100
No current signal · last broadcast 1d ago
Flights observed
148
Distinct callsigns
20
Country
AU
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S 7C1AC2.

Country allocation

The ICAO 24-bit address 7C1AC2 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
UTY6081 - 12 2026-06-24
UTY870 - 8 2026-06-11
UTY6304 - 8 2026-06-29
UTY737 - 7 2026-07-10
UTY6521 - 7 2026-06-30
UTY6520 - 7 2026-07-06
UTY6080 - 7 2026-06-24
UTY6305 - 6 2026-06-29
UTY4831 Alliance Airlines 6 2026-05-07
UTY878 - 4 2026-06-09
UTY731 - 4 2026-06-30
UTY6303 - 3 2026-07-06
UTY6302 - 3 2026-07-05
UTY6301 - 3 2026-07-09
UTY6300 - 3 2026-07-09
UTY6040 - 3 2026-07-12
UTY4120 - 3 2026-07-02
UTY957 - 2 2026-06-23
UTY879 - 2 2026-05-27
UTY872 - 2 2026-06-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 UTY6040 PER → PER Jul 12, 23:45 UTCJul 13, 04:15 UTC4h 30m
2026-07-10 UTY737 PER → PER Jul 10, 06:10 UTCJul 10, 10:30 UTC4h 20m
2026-07-09 UTY5202 PER → PER Jul 9, 22:50 UTCJul 10, 01:45 UTC2h 55m
2026-07-09 UTY6301 KGI → PER Jul 9, 09:30 UTCJul 9, 10:40 UTC1h 10m
2026-07-09 UTY6300 PER → KGI Jul 9, 07:40 UTCJul 9, 08:30 UTC50m
2026-07-08 UTY6501 PER → PER Jul 8, 23:00 UTCJul 9, 01:45 UTC2h 45m
2026-07-08 UTY6311 KGI → PER Jul 8, 11:25 UTCJul 8, 12:30 UTC1h 5m
2026-07-08 UTY6310 PER → KGI Jul 8, 08:35 UTCJul 8, 09:30 UTC55m
2026-07-08 UTY6360 PER → PER Jul 8, 02:05 UTCJul 8, 07:45 UTC5h 40m
2026-07-07 UTY6301 KGI → PER Jul 7, 23:25 UTCJul 8, 00:25 UTC1h 0m
2026-07-07 UTY6300 PER → KGI Jul 7, 21:10 UTCJul 7, 22:00 UTC50m
2026-07-07 UTY6526 PER → PER Jul 7, 06:45 UTCJul 7, 09:50 UTC3h 5m
2026-07-06 UTY6520 PER → PER Jul 6, 22:00 UTCJul 7, 01:00 UTC3h 0m
2026-07-06 UTY737 PER → PER Jul 6, 06:50 UTCJul 6, 11:20 UTC4h 30m
2026-07-06 UTY6303 KGI → PER Jul 6, 00:25 UTCJul 6, 01:20 UTC55m
2026-07-05 UTY6302 PER → KGI Jul 5, 22:25 UTCJul 5, 23:20 UTC55m
2026-07-03 UTY6098 PER → PER Jul 3, 01:10 UTCJul 3, 05:05 UTC3h 55m
2026-07-02 UTY4120 PER → PER Jul 2, 06:20 UTCJul 2, 09:25 UTC3h 5m
2026-07-01 UTY5204 PER → PER Jul 1, 22:25 UTCJul 2, 01:40 UTC3h 15m
2026-07-01 UTY753 KGI → PER Jul 1, 07:45 UTCJul 1, 08:50 UTC1h 5m
2026-07-01 UTY752 PER → KGI Jul 1, 05:55 UTCJul 1, 06:50 UTC55m
2026-06-30 UTY731 PER → PER Jun 30, 21:40 UTCJul 1, 02:50 UTC5h 10m
2026-06-30 UTY804 PER → PER Jun 30, 08:35 UTCJun 30, 11:50 UTC3h 15m
2026-06-30 UTY6370 PER → PER Jun 30, 02:35 UTCJun 30, 06:50 UTC4h 15m
2026-06-30 UTY6521 - Jun 30, 00:25 UTCJun 30, 01:04 UTC40m
2026-06-29 UTY6520 - Jun 29, 22:00 UTCJun 29, 22:44 UTC45m
2026-06-29 UTY6305 KGI → PER Jun 29, 09:34 UTCJun 29, 10:55 UTC1h 20m
2026-06-29 UTY6304 PER → KGI Jun 29, 07:40 UTCJun 29, 08:35 UTC55m
2026-06-28 UTY6070 PER → PER Jun 28, 22:39 UTCJun 29, 02:50 UTC4h 10m
2026-06-26 UTY6502 PER → PER Jun 26, 04:45 UTCJun 26, 07:35 UTC2h 50m
2026-06-25 UTY5203 PER → PER Jun 25, 22:45 UTCJun 26, 01:45 UTC3h 0m
2026-06-25 UTY738 PER → PER Jun 25, 06:50 UTCJun 25, 11:44 UTC4h 55m
2026-06-25 UTY751 - Jun 25, 03:40 UTCJun 25, 04:14 UTC35m
2026-06-25 UTY751 - Jun 25, 02:54 UTCJun 25, 03:04 UTC10m
2026-06-25 UTY750 PER → KGI Jun 25, 01:19 UTCJun 25, 02:05 UTC45m
2026-06-24 UTY6081 BQB → PER Jun 24, 08:35 UTCJun 24, 09:05 UTC30m
2026-06-24 UTY6081 - Jun 24, 01:14 UTCJun 24, 07:54 UTC6h 40m
2026-06-24 UTY6080 PER → BQB Jun 24, 00:15 UTCJun 24, 00:44 UTC30m
2026-06-23 UTY957 PER → PER Jun 23, 06:19 UTCJun 23, 09:49 UTC3h 30m
2026-06-22 UTY731 PER → PER Jun 22, 21:40 UTCJun 23, 03:15 UTC5h 35m
2026-06-22 UTY6305 KGI → PER Jun 22, 09:30 UTCJun 22, 10:34 UTC1h 5m
2026-06-22 UTY6304 PER → KGI Jun 22, 07:34 UTCJun 22, 08:29 UTC55m
2026-06-21 UTY6521 PER → PER Jun 21, 21:54 UTCJun 22, 00:55 UTC3h 0m
2026-06-18 UTY877 PER → PER Jun 18, 22:50 UTCJun 19, 09:59 UTC11h 9m
2026-06-17 UTY731 PER → PER Jun 17, 21:45 UTCJun 18, 02:45 UTC5h 0m
2026-06-17 UTY6311 KGI → PER Jun 17, 11:25 UTCJun 17, 12:25 UTC1h 0m
2026-06-17 UTY6310 PER → KGI Jun 17, 08:20 UTCJun 17, 09:15 UTC55m
2026-06-16 UTY733 PER → PER Jun 16, 23:00 UTCJun 17, 04:00 UTC5h 0m
2026-06-16 UTY6526 PER → PER Jun 16, 06:54 UTCJun 16, 10:04 UTC3h 10m
2026-06-15 UTY6520 PER → PER Jun 15, 22:05 UTCJun 16, 01:04 UTC3h 0m

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

Mode-S 7C1AC2 frequently asked

What is Mode-S code 7C1AC2?
7C1AC2 is an ICAO 24-bit transponder address. Allocated to Australia. Assigned to VH-FKK.
Where is Mode-S 7C1AC2 registered?
Mode-S code 7C1AC2 is allocated to Australia (AU). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 7C1AC2 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 7C1AC2, octal 37015302, decimal 8,133,314.
What flights does 7C1AC2 operate?
Mode-S 7C1AC2 has broadcast 20 distinct callsigns, including UTY6081, UTY870, UTY6304, UTY737, UTY6521.