Apparatus

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sensors Mode-S transponder

ACF952

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N935MC · AIRBUS HELICOPTERS EC-135/635 · operated by METRO AVIATION INC

Hex
ACF952
Octal
53174522
Decimal
11,336,018
Country
US
Tail
N935MC
Type
EC35
No current signal · last broadcast 1h ago
Flights observed
145
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S ACF952.

Country allocation

The ICAO 24-bit address ACF952 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
N935MC - 145 2026-05-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 N935MC - May 30, 08:10 UTCMay 30, 08:20 UTC10m
2026-05-27 N935MC - May 27, 23:30 UTCMay 27, 23:40 UTC10m
2026-05-27 N935MC - May 27, 22:20 UTCMay 27, 22:50 UTC30m
2026-05-27 N935MC - May 27, 04:30 UTCMay 27, 04:45 UTC15m
2026-05-27 N935MC - May 27, 02:34 UTCMay 27, 03:24 UTC50m
2026-05-26 N935MC - May 26, 20:34 UTCMay 26, 20:50 UTC15m
2026-05-26 N935MC - May 26, 19:34 UTCMay 26, 19:50 UTC15m
2026-05-26 N935MC - May 26, 15:45 UTCMay 26, 15:54 UTC10m
2026-05-26 N935MC - May 26, 14:14 UTCMay 26, 14:55 UTC40m
2026-05-26 N935MC - May 26, 13:00 UTCMay 26, 13:15 UTC15m
2026-05-25 N935MC - May 25, 19:05 UTCMay 25, 19:20 UTC15m
2026-05-25 N935MC - May 25, 17:45 UTCMay 25, 18:15 UTC30m
2026-05-25 N935MC - May 25, 16:45 UTCMay 25, 17:00 UTC15m
2026-05-25 N935MC - May 25, 14:50 UTCMay 25, 15:00 UTC10m
2026-05-25 N935MC - May 25, 13:45 UTCMay 25, 14:05 UTC20m
2026-05-24 N935MC - May 24, 21:35 UTCMay 24, 21:45 UTC10m
2026-05-24 N935MC - May 24, 20:25 UTCMay 24, 21:00 UTC35m
2026-05-23 N935MC - May 23, 21:10 UTCMay 23, 22:05 UTC55m
2026-05-23 N935MC MLB → TIX May 23, 18:40 UTCMay 23, 18:55 UTC15m
2026-05-23 N935MC - May 23, 17:30 UTCMay 23, 18:10 UTC40m
2026-05-22 N935MC TIX → TIX May 22, 06:30 UTCMay 22, 07:35 UTC1h 5m
2026-05-21 N935MC - May 21, 21:50 UTCMay 21, 23:35 UTC1h 45m
2026-05-21 N935MC - May 21, 17:50 UTCMay 21, 18:40 UTC50m
2026-05-21 N935MC - May 21, 05:15 UTCMay 21, 05:30 UTC15m
2026-05-21 N935MC - May 21, 03:55 UTCMay 21, 04:40 UTC45m
2026-05-20 N935MC - May 20, 21:20 UTCMay 20, 21:35 UTC15m
2026-05-20 N935MC - May 20, 20:05 UTCMay 20, 20:45 UTC40m
2026-05-20 N935MC - May 20, 14:25 UTCMay 20, 15:00 UTC35m
2026-05-20 N935MC - May 20, 03:35 UTCMay 20, 04:10 UTC35m
2026-05-20 N935MC - May 20, 01:25 UTCMay 20, 02:10 UTC45m
2026-05-20 N935MC - May 20, 00:35 UTCMay 20, 00:45 UTC10m
2026-05-19 N935MC - May 19, 17:15 UTCMay 19, 17:30 UTC15m
2026-05-19 N935MC - May 19, 15:40 UTCMay 19, 16:10 UTC30m
2026-05-19 N935MC - May 19, 07:50 UTCMay 19, 08:05 UTC15m
2026-05-19 N935MC - May 19, 06:30 UTCMay 19, 07:00 UTC30m
2026-05-19 N935MC - May 19, 02:05 UTCMay 19, 03:00 UTC55m
2026-05-18 N935MC - May 18, 20:10 UTCMay 18, 21:15 UTC1h 5m
2026-05-17 N935MC - May 17, 23:40 UTCMay 17, 23:50 UTC10m
2026-05-17 N935MC - May 17, 22:25 UTCMay 17, 23:05 UTC40m
2026-05-17 N935MC - May 17, 05:35 UTCMay 17, 05:45 UTC10m
2026-05-17 N935MC - May 17, 04:25 UTCMay 17, 05:05 UTC40m
2026-05-16 N935MC - May 16, 18:25 UTCMay 16, 19:40 UTC1h 15m
2026-05-16 N935MC - May 16, 04:15 UTCMay 16, 04:30 UTC15m
2026-05-16 N935MC - May 16, 02:35 UTCMay 16, 03:15 UTC40m
2026-05-15 N935MC - May 15, 17:20 UTCMay 15, 18:15 UTC55m
2026-05-15 N935MC TIX → TIX May 15, 10:30 UTCMay 15, 11:45 UTC1h 15m
2026-05-15 N935MC - May 15, 01:35 UTCMay 15, 01:50 UTC15m
2026-05-15 N935MC - May 15, 00:35 UTCMay 15, 00:50 UTC15m
2026-05-13 N935MC - May 13, 16:20 UTCMay 13, 16:35 UTC15m
2026-05-13 N935MC - May 13, 14:45 UTCMay 13, 15:20 UTC35m

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 N935MC page for operator, model, and routing details .

Mode-S ACF952 frequently asked

What is Mode-S code ACF952?
ACF952 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N935MC.
Where is Mode-S ACF952 registered?
Mode-S code ACF952 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 ACF952 broadcasting right now?
No active broadcast right now. Last signal was 1h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF952, octal 53174522, decimal 11,336,018.
What flights does ACF952 operate?
Mode-S ACF952 has broadcast 1 distinct callsign, including N935MC.