Apparatus

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sensors Mode-S transponder

AC84F9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9056R · DOUGLAS DC-6 Liftmaster · operated by TATONDUK OUTFITTERS LTD

Hex
AC84F9
Octal
53102371
Decimal
11,306,233
Country
US
Tail
N9056R
Type
DC6
No current signal · last broadcast 23d ago
Flights observed
118
Distinct callsigns
8
Country
US
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S AC84F9.

Country allocation

The ICAO 24-bit address AC84F9 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States 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 8 distinct

Callsign Airline Flights Last seen
VTS1602 - 36 2026-06-24
VTS1603 - 30 2026-06-24
VTS1600 - 12 2026-06-01
VTS1601 - 11 2026-06-02
VTS35 Everts Air Cargo 10 2026-05-07
VTS1604 Everts Air Cargo 10 2026-06-12
VTS1605 Everts Air Cargo 7 2026-06-13
VTS650 Everts Air Cargo 2 2026-04-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-24 VTS1603 OBU → FAI Jun 24, 21:00 UTCJun 24, 22:14 UTC1h 15m
2026-06-24 VTS1602 - Jun 24, 19:00 UTCJun 24, 19:20 UTC20m
2026-06-24 VTS1602 - Jun 24, 17:59 UTCJun 24, 18:25 UTC25m
2026-06-22 VTS1603 ABL → FAI Jun 22, 20:39 UTCJun 22, 21:59 UTC1h 20m
2026-06-22 VTS1602 - Jun 22, 19:14 UTCJun 22, 19:44 UTC30m
2026-06-22 VTS1602 - Jun 22, 18:09 UTCJun 22, 18:35 UTC25m
2026-06-18 VTS1603 - Jun 18, 20:25 UTCJun 18, 20:45 UTC20m
2026-06-18 VTS1603 - Jun 18, 19:30 UTCJun 18, 19:50 UTC20m
2026-06-18 VTS1602 - Jun 18, 18:10 UTCJun 18, 18:35 UTC25m
2026-06-18 VTS1602 - Jun 18, 17:10 UTCJun 18, 17:35 UTC25m
2026-06-17 VTS1603 - Jun 17, 22:35 UTCJun 17, 22:55 UTC20m
2026-06-17 VTS1602 - Jun 17, 18:30 UTCJun 17, 18:56 UTC25m
2026-06-15 VTS1603 - Jun 15, 20:20 UTCJun 15, 21:30 UTC1h 10m
2026-06-15 VTS1602 - Jun 15, 19:00 UTCJun 15, 19:14 UTC15m
2026-06-15 VTS1602 - Jun 15, 17:54 UTCJun 15, 18:20 UTC25m
2026-06-13 VTS1605 BTI → FAI Jun 13, 02:20 UTCJun 13, 03:35 UTC1h 15m
2026-06-12 VTS1604 FAI → BTI Jun 12, 23:20 UTCJun 13, 00:45 UTC1h 25m
2026-06-12 VTS1603 - Jun 12, 18:20 UTCJun 12, 19:40 UTC1h 20m
2026-06-12 VTS1602 - Jun 12, 17:10 UTCJun 12, 17:40 UTC30m
2026-06-12 VTS1602 - Jun 12, 16:05 UTCJun 12, 16:30 UTC25m
2026-06-11 VTS1603 - Jun 11, 21:10 UTCJun 11, 21:30 UTC20m
2026-06-11 VTS1603 - Jun 11, 20:15 UTCJun 11, 20:35 UTC20m
2026-06-11 VTS1602 - Jun 11, 17:45 UTCJun 11, 19:05 UTC1h 20m
2026-06-10 VTS1603 - Jun 10, 23:15 UTCJun 10, 23:35 UTC20m
2026-06-10 VTS1603 - Jun 10, 22:20 UTCJun 10, 22:40 UTC20m
2026-06-10 VTS1602 - Jun 10, 20:30 UTCJun 10, 20:50 UTC20m
2026-06-10 VTS1602 - Jun 10, 19:30 UTCJun 10, 19:55 UTC25m
2026-06-10 VTS1605 BTI → FAI Jun 10, 02:30 UTCJun 10, 02:50 UTC20m
2026-06-10 VTS1605 BTI → FAI Jun 10, 01:35 UTCJun 10, 01:55 UTC20m
2026-06-10 VTS1604 FAI → BTI Jun 10, 00:00 UTCJun 10, 00:20 UTC20m
2026-06-09 VTS1604 FAI → BTI Jun 9, 23:00 UTCJun 9, 23:25 UTC25m
2026-06-09 VTS1603 - Jun 9, 20:45 UTCJun 9, 21:05 UTC20m
2026-06-09 VTS1603 - Jun 9, 19:45 UTCJun 9, 20:10 UTC25m
2026-06-09 VTS1602 - Jun 9, 18:50 UTCJun 9, 19:10 UTC20m
2026-06-09 VTS1602 - Jun 9, 17:45 UTCJun 9, 18:10 UTC25m
2026-06-08 VTS1603 - Jun 8, 23:35 UTCJun 9, 00:10 UTC35m
2026-06-08 VTS1602 - Jun 8, 20:25 UTCJun 8, 20:55 UTC30m
2026-06-06 VTS1603 - Jun 6, 00:00 UTCJun 6, 00:20 UTC20m
2026-06-05 VTS1603 - Jun 5, 23:05 UTCJun 5, 23:25 UTC20m
2026-06-05 VTS1602 - Jun 5, 20:40 UTCJun 5, 22:05 UTC1h 25m
2026-06-04 VTS1604 FAI → BTI Jun 4, 21:50 UTCJun 4, 22:05 UTC15m
2026-06-04 VTS1603 - Jun 4, 19:50 UTCJun 4, 20:10 UTC20m
2026-06-04 VTS1603 - Jun 4, 18:55 UTCJun 4, 19:15 UTC20m
2026-06-04 VTS1602 - Jun 4, 17:35 UTCJun 4, 17:55 UTC20m
2026-06-04 VTS1602 - Jun 4, 16:30 UTCJun 4, 17:00 UTC30m
2026-06-04 VTS1605 BTI → FAI Jun 4, 00:05 UTCJun 4, 00:10 UTC5m
2026-06-03 VTS1604 FAI → BTI Jun 3, 22:10 UTCJun 3, 22:20 UTC10m
2026-06-03 VTS1603 - Jun 3, 19:45 UTCJun 3, 20:05 UTC20m
2026-06-03 VTS1603 - Jun 3, 18:55 UTCJun 3, 19:15 UTC20m
2026-06-03 VTS1602 - Jun 3, 17:20 UTCJun 3, 17:45 UTC25m

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 N9056R page for operator, model, and routing details .

Mode-S AC84F9 frequently asked

What is Mode-S code AC84F9?
AC84F9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9056R.
Where is Mode-S AC84F9 registered?
Mode-S code AC84F9 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is AC84F9 broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC84F9, octal 53102371, decimal 11,306,233.
What flights does AC84F9 operate?
Mode-S AC84F9 has broadcast 8 distinct callsigns, including VTS1602, VTS1603, VTS1600, VTS1601, VTS35.