sensors Mode-S transponder

ACF4CC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N934CW · CESSNA 525 CitationJet · operated by M2 AVIATION LLC

Hex
ACF4CC
Octal
53172314
Decimal
11,334,860
Country
US
Tail
N934CW
Type
C525
Broadcasting now · callsign N934CW · 1,600 ft
Flights observed
35
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Current position

ACF4CC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ACF4CC 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
N934CW - 35 2026-05-13

Recent flights last 35

DateFlightRouteTakeoffLandingDuration
2026-05-13 N934CW RSW → PIE May 13, 20:30 UTCMay 13, 21:00 UTC30m
2026-05-13 N934CW PBI → RSW May 13, 17:00 UTCMay 13, 17:30 UTC30m
2026-05-12 N934CW - May 12, 15:15 UTCMay 12, 16:45 UTC1h 30m
2026-05-10 N934CW - May 10, 18:09 UTCMay 10, 19:15 UTC1h 5m
2026-05-08 N934CW - May 8, 01:24 UTCMay 8, 02:39 UTC1h 15m
2026-05-07 N934CW - May 7, 16:05 UTCMay 7, 16:55 UTC50m
2026-05-06 N934CW - May 6, 16:10 UTCMay 6, 16:35 UTC25m
2026-05-06 N934CW - May 6, 13:30 UTCMay 6, 14:50 UTC1h 20m
2026-05-06 N934CW - May 6, 09:50 UTCMay 6, 11:55 UTC2h 5m
2026-05-05 N934CW - May 5, 04:55 UTCMay 5, 06:25 UTC1h 30m
2026-05-04 N934CW - May 4, 22:45 UTCMay 4, 23:45 UTC1h 0m
2026-05-04 N934CW - May 4, 21:20 UTCMay 4, 21:35 UTC15m
2026-05-03 N934CW - May 3, 19:10 UTCMay 3, 19:50 UTC40m
2026-05-03 N934CW - May 3, 17:00 UTCMay 3, 18:34 UTC1h 35m
2026-05-03 N934CW - May 3, 14:20 UTCMay 3, 16:15 UTC1h 55m
2026-05-01 N934CW - May 1, 14:00 UTCMay 1, 16:45 UTC2h 45m
2026-05-01 N934CW - May 1, 11:05 UTCMay 1, 13:05 UTC2h 0m
2026-04-30 N934CW - Apr 30, 21:25 UTCMay 1, 00:30 UTC3h 5m
2026-04-28 N934CW - Apr 28, 13:50 UTCApr 28, 15:35 UTC1h 45m
2026-04-27 N934CW - Apr 27, 19:10 UTCApr 27, 19:45 UTC35m
2026-04-27 N934CW - Apr 27, 16:45 UTCApr 27, 18:35 UTC1h 50m
2026-04-27 N934CW - Apr 27, 12:35 UTCApr 27, 13:30 UTC55m
2026-04-27 N934CW - Apr 27, 09:55 UTCApr 27, 11:40 UTC1h 45m
2026-04-27 N934CW - Apr 27, 08:20 UTCApr 27, 08:55 UTC35m
2026-04-27 N934CW - Apr 27, 05:25 UTCApr 27, 05:35 UTC10m
2026-04-27 N934CW - Apr 27, 03:30 UTCApr 27, 04:35 UTC1h 5m
2026-04-26 N934CW - Apr 26, 18:55 UTCApr 26, 20:00 UTC1h 5m
2026-04-26 N934CW - Apr 26, 17:25 UTCApr 26, 17:40 UTC15m
2026-04-24 N934CW - Apr 24, 19:30 UTCApr 24, 21:15 UTC1h 45m
2026-04-24 N934CW - Apr 24, 16:25 UTCApr 24, 17:05 UTC40m
2026-04-24 N934CW - Apr 24, 09:40 UTCApr 24, 12:10 UTC2h 30m
2026-04-20 N934CW - Apr 20, 23:30 UTCApr 21, 01:15 UTC1h 45m
2026-04-20 N934CW - Apr 20, 21:15 UTCApr 20, 22:30 UTC1h 15m
2026-04-19 N934CW - Apr 19, 14:40 UTCApr 19, 16:25 UTC1h 45m
2026-04-19 N934CW - Apr 19, 10:25 UTCApr 19, 13:30 UTC3h 5m

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 N934CW page for operator, model, and routing details .

Mode-S ACF4CC frequently asked

What is Mode-S code ACF4CC?
ACF4CC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N934CW.
Where is Mode-S ACF4CC registered?
Mode-S code ACF4CC 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 ACF4CC broadcasting right now?
Yes. Mode-S ACF4CC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF4CC, octal 53172314, decimal 11,334,860.
What flights does ACF4CC operate?
Mode-S ACF4CC has broadcast 1 distinct callsign, including N934CW.