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sensors Mode-S transponder

ACA84E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9143F · AIR TRACTOR AT-504 · operated by STOVE CREEK AIR LLC

Hex
ACA84E
Octal
53124116
Decimal
11,315,278
Country
US
Tail
N9143F
Type
AT5T
No current signal · last broadcast Jul 26, 17:20 UTC
Flights observed
97
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 17:20 UTC

Last known position

Most recent position reported by Mode-S ACA84E.

Country allocation

The ICAO 24-bit address ACA84E 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 1 distinct

Callsign Airline Flights Last seen
N9143F - 97 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N9143F - Jul 26, 16:55 UTCJul 26, 17:20 UTC25m
2026-07-26 N9143F - Jul 26, 16:00 UTCJul 26, 16:15 UTC15m
2026-07-26 N9143F - Jul 26, 13:55 UTCJul 26, 15:15 UTC1h 20m
2026-07-24 N9143F - Jul 24, 23:35 UTCJul 25, 01:25 UTC1h 50m
2026-07-23 N9143F - Jul 23, 22:40 UTCJul 23, 23:05 UTC25m
2026-07-23 N9143F - Jul 23, 19:10 UTCJul 23, 21:50 UTC2h 40m
2026-07-23 N9143F - Jul 23, 16:00 UTCJul 23, 16:40 UTC40m
2026-07-23 N9143F - Jul 23, 13:40 UTCJul 23, 15:15 UTC1h 35m
2026-07-23 N9143F - Jul 23, 01:30 UTCJul 23, 01:40 UTC10m
2026-07-22 N9143F - Jul 22, 23:40 UTCJul 23, 00:00 UTC20m
2026-07-22 N9143F - Jul 22, 22:40 UTCJul 22, 23:00 UTC20m
2026-07-22 N9143F - Jul 22, 17:20 UTCJul 22, 17:45 UTC25m
2026-07-22 N9143F - Jul 22, 13:10 UTCJul 22, 14:55 UTC1h 45m
2026-07-21 N9143F - Jul 21, 23:45 UTCJul 22, 00:50 UTC1h 5m
2026-07-21 N9143F - Jul 21, 13:00 UTCJul 21, 14:30 UTC1h 30m
2026-07-20 N9143F - Jul 20, 16:20 UTCJul 20, 18:40 UTC2h 20m
2026-07-20 N9143F - Jul 20, 15:10 UTCJul 20, 15:35 UTC25m
2026-07-20 N9143F - Jul 20, 12:45 UTCJul 20, 14:25 UTC1h 40m
2026-07-19 N9143F - Jul 19, 22:25 UTCJul 19, 22:40 UTC15m
2026-07-19 N9143F - Jul 19, 12:35 UTCJul 19, 12:50 UTC15m
2026-07-18 N9143F - Jul 18, 20:30 UTCJul 18, 20:50 UTC20m
2026-07-18 N9143F - Jul 18, 19:20 UTCJul 18, 19:55 UTC35m
2026-07-18 N9143F - Jul 18, 18:15 UTCJul 18, 18:45 UTC30m
2026-07-18 N9143F - Jul 18, 16:10 UTCJul 18, 17:40 UTC1h 30m
2026-07-18 N9143F - Jul 18, 12:50 UTCJul 18, 15:40 UTC2h 50m
2026-07-17 N9143F - Jul 17, 23:20 UTCJul 18, 00:55 UTC1h 35m
2026-07-17 N9143F - Jul 17, 22:20 UTCJul 17, 22:45 UTC25m
2026-07-17 N9143F - Jul 17, 20:40 UTCJul 17, 20:50 UTC10m
2026-07-17 N9143F - Jul 17, 19:05 UTCJul 17, 19:55 UTC50m
2026-07-17 N9143F - Jul 17, 17:35 UTCJul 17, 18:10 UTC35m
2026-07-17 N9143F - Jul 17, 13:10 UTCJul 17, 16:44 UTC3h 35m
2026-07-16 N9143F - Jul 16, 22:55 UTCJul 17, 00:35 UTC1h 40m
2026-07-16 N9143F - Jul 16, 21:30 UTCJul 16, 22:00 UTC30m
2026-07-16 N9143F - Jul 16, 18:44 UTCJul 16, 19:14 UTC30m
2026-07-16 N9143F - Jul 16, 17:54 UTCJul 16, 18:05 UTC10m
2026-07-16 N9143F - Jul 16, 17:10 UTCJul 16, 17:20 UTC10m
2026-07-16 N9143F - Jul 16, 15:25 UTCJul 16, 15:40 UTC15m
2026-07-16 N9143F - Jul 16, 13:54 UTCJul 16, 14:40 UTC45m
2026-07-15 N9143F - Jul 15, 23:20 UTCJul 16, 00:05 UTC45m
2026-07-15 N9143F - Jul 15, 22:00 UTCJul 15, 22:45 UTC45m
2026-07-15 N9143F - Jul 15, 20:35 UTCJul 15, 21:25 UTC50m
2026-07-15 N9143F - Jul 15, 19:15 UTCJul 15, 19:35 UTC20m
2026-07-15 N9143F - Jul 15, 16:00 UTCJul 15, 17:30 UTC1h 30m
2026-07-15 N9143F - Jul 15, 14:40 UTCJul 15, 15:05 UTC25m
2026-07-15 N9143F - Jul 15, 13:35 UTCJul 15, 13:45 UTC10m
2026-07-14 N9143F - Jul 14, 22:10 UTCJul 15, 01:40 UTC3h 29m
2026-07-14 N9143F - Jul 14, 21:15 UTCJul 14, 21:40 UTC25m
2026-07-14 N9143F - Jul 14, 19:40 UTCJul 14, 20:05 UTC25m
2026-07-14 N9143F - Jul 14, 18:05 UTCJul 14, 19:05 UTC1h 0m
2026-07-14 N9143F - Jul 14, 15:35 UTCJul 14, 17:00 UTC1h 25m

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 N9143F page for operator, model, and routing details .

Mode-S ACA84E frequently asked

What is Mode-S code ACA84E?
ACA84E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9143F.
Where is Mode-S ACA84E registered?
Mode-S code ACA84E 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 ACA84E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACA84E, octal 53124116, decimal 11,315,278.
What flights does ACA84E operate?
Mode-S ACA84E has broadcast 1 distinct callsign, including N9143F.