sensors Mode-S transponder

ACF70C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N9341M · MOONEY M-20 · operated by GABEL MARK E

Hex
ACF70C
Octal
53173414
Decimal
11,335,436
Country
US
Tail
N9341M
Type
M20P
No current signal · last broadcast 6d ago
Flights observed
14
Distinct callsigns
1
Country
US
Last broadcast
6d ago

Last known position

Most recent position reported by Mode-S ACF70C.

Country allocation

The ICAO 24-bit address ACF70C 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
N9341M - 14 2026-06-03

Recent flights last 14

DateFlightRouteTakeoffLandingDuration
2026-06-03 N9341M - Jun 3, 20:35 UTCJun 3, 23:00 UTC2h 25m
2026-05-31 N9341M - May 31, 18:10 UTCMay 31, 18:45 UTC35m
2026-05-30 N9341M OXR → OXR May 30, 22:00 UTCMay 30, 22:30 UTC30m
2026-05-30 N9341M - May 30, 17:35 UTCMay 30, 18:10 UTC35m
2026-05-29 N9341M - May 29, 19:20 UTCMay 29, 20:40 UTC1h 20m
2026-05-28 N9341M - May 28, 17:05 UTCMay 28, 18:05 UTC1h 0m
2026-05-23 N9341M - May 23, 22:25 UTCMay 23, 23:05 UTC40m
2026-05-21 N9341M - May 21, 17:05 UTCMay 21, 17:40 UTC35m
2026-05-20 N9341M - May 20, 15:55 UTCMay 20, 17:15 UTC1h 20m
2026-05-20 N9341M - May 20, 14:25 UTCMay 20, 15:20 UTC55m
2026-05-19 N9341M - May 19, 14:55 UTCMay 19, 17:05 UTC2h 10m
2026-05-17 N9341M - May 17, 20:30 UTCMay 17, 22:10 UTC1h 40m
2026-05-16 N9341M - May 16, 19:50 UTCMay 16, 22:05 UTC2h 15m
2026-05-14 N9341M - May 14, 23:30 UTCMay 15, 00:15 UTC45m

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 N9341M page for operator, model, and routing details .

Mode-S ACF70C frequently asked

What is Mode-S code ACF70C?
ACF70C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N9341M.
Where is Mode-S ACF70C registered?
Mode-S code ACF70C 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 ACF70C broadcasting right now?
No active broadcast right now. Last signal was 6d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF70C, octal 53173414, decimal 11,335,436.
What flights does ACF70C operate?
Mode-S ACF70C has broadcast 1 distinct callsign, including N9341M.