Apparatus

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sensors Mode-S transponder

AC5FD7

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N897FE · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORPORATION

Hex
AC5FD7
Octal
53057727
Decimal
11,296,727
Country
US
Tail
N897FE
Type
C208
No current signal · last broadcast Jul 18, 00:39 UTC
Flights observed
150
Distinct callsigns
20
Country
US
Last broadcast
Jul 18, 00:39 UTC

Last known position

Most recent position reported by Mode-S AC5FD7.

Country allocation

The ICAO 24-bit address AC5FD7 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 20 distinct

Callsign Airline Flights Last seen
CFS7511 - 20 2026-07-18
CFS7699 Empire Airlines 17 2026-05-26
CFS8699 Empire Airlines 16 2026-05-27
CFS8511 Empire Airlines 14 2026-07-17
CFS4511 - 13 2026-07-17
CFS447 Empire Airlines 12 2026-07-07
CFS7695 Empire Airlines 10 2026-04-22
CFS4699 Empire Airlines 7 2026-05-22
CFS7701 - 4 2026-06-19
CFS4695 Empire Airlines 4 2026-04-20
CFS8744 Empire Airlines 3 2026-06-18
CFS1738 Empire Airlines 3 2026-05-01
CFS8977 Empire Airlines 2 2026-06-19
CFS8695 - 2 2026-04-18
CFS518 - 2 2026-07-08
CFS199 Empire Airlines 2 2026-05-29
CFS198 - 2 2026-05-27
CFS103 - 2 2026-06-30
CFS8657 Empire Airlines 1 2026-05-16
CFS7974 - 1 2026-06-16

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 CFS7511 - Jul 18, 00:10 UTCJul 18, 00:35 UTC25m
2026-07-17 CFS4511 - Jul 17, 16:40 UTCJul 17, 16:55 UTC15m
2026-07-17 CFS8511 SEA → ESD Jul 17, 15:05 UTCJul 17, 15:44 UTC40m
2026-07-17 CFS7511 - Jul 17, 00:20 UTCJul 17, 00:50 UTC30m
2026-07-16 CFS4511 - Jul 16, 16:15 UTCJul 16, 16:25 UTC10m
2026-07-16 CFS8511 SEA → ESD Jul 16, 14:45 UTCJul 16, 15:14 UTC30m
2026-07-16 CFS7511 - Jul 16, 00:15 UTCJul 16, 00:50 UTC35m
2026-07-15 CFS4511 - Jul 15, 16:55 UTCJul 15, 17:10 UTC15m
2026-07-15 CFS8511 SEA → ESD Jul 15, 15:35 UTCJul 15, 16:10 UTC35m
2026-07-15 CFS7511 - Jul 15, 00:10 UTCJul 15, 00:45 UTC35m
2026-07-14 CFS8511 SEA → ESD Jul 14, 15:40 UTCJul 14, 16:55 UTC1h 15m
2026-07-14 CFS7511 - Jul 14, 00:10 UTCJul 14, 00:45 UTC35m
2026-07-13 CFS4511 SEA → MVW Jul 13, 22:05 UTCJul 13, 22:30 UTC25m
2026-07-11 CFS7511 - Jul 11, 00:05 UTCJul 11, 00:40 UTC35m
2026-07-10 CFS4511 - Jul 10, 16:30 UTCJul 10, 16:40 UTC10m
2026-07-10 CFS8511 SEA → ESD Jul 10, 15:05 UTCJul 10, 15:45 UTC40m
2026-07-10 CFS7511 - Jul 10, 00:10 UTCJul 10, 00:35 UTC25m
2026-07-09 CFS4511 - Jul 9, 16:30 UTCJul 9, 16:40 UTC10m
2026-07-09 CFS8511 SEA → ESD Jul 9, 15:10 UTCJul 9, 15:50 UTC40m
2026-07-09 CFS7511 - Jul 9, 00:05 UTCJul 9, 00:35 UTC30m
2026-07-08 CFS518 - Jul 8, 22:10 UTCJul 8, 22:20 UTC10m
2026-07-08 CFS518 SEA → BLI Jul 8, 17:05 UTCJul 8, 17:55 UTC50m
2026-07-08 CFS7511 - Jul 8, 00:10 UTCJul 8, 00:40 UTC30m
2026-07-07 CFS447 SEA → BLI Jul 7, 17:20 UTCJul 7, 17:45 UTC25m
2026-07-07 CFS447 SEA → BLI Jul 7, 16:25 UTCJul 7, 16:55 UTC30m
2026-07-06 CFS7511 - Jul 6, 23:45 UTCJul 7, 00:30 UTC45m
2026-07-06 CFS4511 SEA → MVW Jul 6, 21:25 UTCJul 6, 21:50 UTC25m
2026-07-03 CFS4511 ESD → SEA Jul 3, 17:15 UTCJul 3, 18:05 UTC50m
2026-07-03 CFS8511 SEA → ESD Jul 3, 15:25 UTCJul 3, 16:00 UTC35m
2026-07-03 CFS7511 - Jul 3, 00:15 UTCJul 3, 00:50 UTC35m
2026-07-02 CFS5470 SEA → BLI Jul 2, 17:25 UTCJul 2, 17:40 UTC15m
2026-07-02 CFS8511 SEA → ESD Jul 2, 15:25 UTCJul 2, 16:10 UTC45m
2026-07-01 CFS7511 MVW → SEA Jul 1, 23:35 UTCJul 2, 00:05 UTC30m
2026-07-01 CFS447 SEA → BLI Jul 1, 17:15 UTCJul 1, 17:25 UTC10m
2026-07-01 CFS447 SEA → BLI Jul 1, 15:55 UTCJul 1, 16:40 UTC45m
2026-06-30 CFS103 SEA → SEA Jun 30, 18:35 UTCJun 30, 21:10 UTC2h 35m
2026-06-30 CFS7511 - Jun 30, 00:14 UTCJun 30, 00:45 UTC30m
2026-06-29 CFS103 - Jun 29, 21:09 UTCJun 29, 22:39 UTC1h 30m
2026-06-26 CFS7511 - Jun 26, 23:44 UTCJun 27, 00:29 UTC45m
2026-06-26 CFS447 SEA → BLI Jun 26, 20:20 UTCJun 26, 20:29 UTC10m
2026-06-26 CFS447 SEA → BLI Jun 26, 15:39 UTCJun 26, 16:24 UTC45m
2026-06-26 CFS7511 - Jun 26, 00:20 UTCJun 26, 00:50 UTC30m
2026-06-25 CFS4511 - Jun 25, 16:35 UTCJun 25, 16:45 UTC10m
2026-06-25 CFS8511 SEA → ESD Jun 25, 15:10 UTCJun 25, 15:50 UTC40m
2026-06-24 CFS7511 - Jun 24, 23:40 UTCJun 25, 00:14 UTC35m
2026-06-24 CFS4511 ESD → MVW Jun 24, 16:24 UTCJun 24, 16:40 UTC15m
2026-06-24 CFS8511 SEA → ESD Jun 24, 15:05 UTCJun 24, 15:44 UTC40m
2026-06-24 CFS7511 - Jun 24, 00:15 UTCJun 24, 00:49 UTC35m
2026-06-23 CFS4511 - Jun 23, 22:40 UTCJun 23, 22:49 UTC10m
2026-06-23 CFS44 SEA → CLM Jun 23, 15:50 UTCJun 23, 16:24 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 N897FE page for operator, model, and routing details .

Mode-S AC5FD7 frequently asked

What is Mode-S code AC5FD7?
AC5FD7 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N897FE.
Where is Mode-S AC5FD7 registered?
Mode-S code AC5FD7 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 AC5FD7 broadcasting right now?
No active broadcast right now. Last signal was Jul 18, 00:39 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC5FD7, octal 53057727, decimal 11,296,727.
What flights does AC5FD7 operate?
Mode-S AC5FD7 has broadcast 20 distinct callsigns, including CFS7511, CFS7699, CFS8699, CFS8511, CFS4511.