Apparatus

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sensors Mode-S transponder

AC1E57

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N880FE · CESSNA 208 Caravan · operated by FEDERAL EXPRESS CORP

Hex
AC1E57
Octal
53017127
Decimal
11,279,959
Country
US
Tail
N880FE
Type
C208
No current signal · last broadcast 1h ago
Flights observed
75
Distinct callsigns
9
Country
US
Last broadcast
1h ago

Last known position

Most recent position reported by Mode-S AC1E57.

Country allocation

The ICAO 24-bit address AC1E57 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 9 distinct

Callsign Airline Flights Last seen
CFS8802 Empire Airlines 19 2026-05-23
CFS7802 Empire Airlines 18 2026-05-27
CFS4802 Empire Airlines 8 2026-05-26
CFS7805 Empire Airlines 7 2026-05-30
CFS7801 Empire Airlines 7 2026-04-29
CFS8801 Empire Airlines 6 2026-04-28
CFS8812 Empire Airlines 5 2026-05-29
CFS4801 Empire Airlines 3 2026-04-27
CFS4805 Empire Airlines 2 2026-05-27

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 CFS7805 YUM → PHX May 30, 00:25 UTCMay 30, 01:10 UTC45m
2026-05-29 CFS8812 PHX → YUM May 29, 14:50 UTCMay 29, 15:40 UTC50m
2026-05-28 CFS7805 YUM → PHX May 28, 00:40 UTCMay 28, 01:15 UTC35m
2026-05-27 CFS4805 PHX → YUM May 27, 17:10 UTCMay 27, 18:15 UTC1h 5m
2026-05-27 CFS8812 PHX → YUM May 27, 15:10 UTCMay 27, 15:40 UTC30m
2026-05-27 CFS7802 YUM → PHX May 27, 00:00 UTCMay 27, 00:49 UTC50m
2026-05-26 CFS4802 YUM → PHX May 26, 20:40 UTCMay 26, 21:20 UTC40m
2026-05-23 CFS4802 YUM → PHX May 23, 16:35 UTCMay 23, 17:20 UTC45m
2026-05-23 CFS8802 PHX → YUM May 23, 14:35 UTCMay 23, 15:15 UTC40m
2026-05-22 CFS7802 YUM → PHX May 22, 23:50 UTCMay 23, 00:40 UTC50m
2026-05-22 CFS8802 PHX → YUM May 22, 14:35 UTCMay 22, 15:20 UTC45m
2026-05-21 CFS7802 YUM → PHX May 21, 23:55 UTCMay 22, 00:45 UTC50m
2026-05-21 CFS8802 PHX → YUM May 21, 14:15 UTCMay 21, 15:00 UTC45m
2026-05-21 CFS7802 YUM → PHX May 21, 00:00 UTCMay 21, 00:45 UTC45m
2026-05-20 CFS8802 PHX → YUM May 20, 15:00 UTCMay 20, 15:45 UTC45m
2026-05-20 CFS7802 YUM → PHX May 20, 00:00 UTCMay 20, 00:55 UTC55m
2026-05-19 CFS8802 PHX → YUM May 19, 15:00 UTCMay 19, 15:45 UTC45m
2026-05-19 CFS7802 YUM → PHX May 19, 00:00 UTCMay 19, 00:35 UTC35m
2026-05-18 CFS4802 YUM → PHX May 18, 20:45 UTCMay 18, 21:25 UTC40m
2026-05-16 CFS4802 YUM → PHX May 16, 16:15 UTCMay 16, 16:50 UTC35m
2026-05-16 CFS8802 PHX → YUM May 16, 14:31 UTCMay 16, 15:16 UTC45m
2026-05-16 CFS7802 YUM → PHX May 16, 00:05 UTCMay 16, 00:50 UTC45m
2026-05-15 CFS8802 PHX → YUM May 15, 14:15 UTCMay 15, 15:00 UTC44m
2026-05-15 CFS7802 YUM → PHX May 15, 00:00 UTCMay 15, 00:50 UTC50m
2026-05-14 CFS8802 PHX → YUM May 14, 14:40 UTCMay 14, 15:25 UTC45m
2026-05-14 CFS7802 YUM → PHX May 14, 00:00 UTCMay 14, 00:50 UTC50m
2026-05-13 CFS8802 PHX → YUM May 13, 15:00 UTCMay 13, 15:40 UTC40m
2026-05-13 CFS7802 YUM → PHX May 13, 00:00 UTCMay 13, 00:45 UTC45m
2026-05-12 CFS8802 PHX → YUM May 12, 17:00 UTCMay 12, 17:45 UTC45m
2026-05-11 CFS4802 YUM → PHX May 11, 21:00 UTCMay 11, 21:40 UTC40m
2026-05-09 CFS4802 YUM → PHX May 9, 17:10 UTCMay 9, 18:00 UTC50m
2026-05-09 CFS8802 PHX → YUM May 9, 15:20 UTCMay 9, 16:10 UTC50m
2026-05-08 CFS7802 YUM → PHX May 8, 23:55 UTCMay 9, 00:35 UTC40m
2026-05-08 CFS8802 PHX → YUM May 8, 14:45 UTCMay 8, 15:30 UTC45m
2026-05-08 CFS7802 YUM → PHX May 8, 00:09 UTCMay 8, 00:54 UTC45m
2026-05-07 CFS8802 PHX → YUM May 7, 16:45 UTCMay 7, 17:25 UTC40m
2026-05-07 CFS7802 YUM → PHX May 7, 00:15 UTCMay 7, 01:10 UTC55m
2026-05-06 CFS8802 PHX → YUM May 6, 16:55 UTCMay 6, 17:35 UTC39m
2026-05-06 CFS7802 YUM → PHX May 6, 00:20 UTCMay 6, 00:55 UTC35m
2026-05-05 CFS8802 PHX → YUM May 5, 15:05 UTCMay 5, 15:50 UTC45m
2026-05-05 CFS7802 YUM → PHX May 5, 00:05 UTCMay 5, 00:45 UTC40m
2026-05-04 CFS4802 YUM → PHX May 4, 21:05 UTCMay 4, 21:50 UTC45m
2026-05-02 CFS4802 YUM → PHX May 2, 16:40 UTCMay 2, 17:10 UTC30m
2026-05-02 CFS8802 PHX → YUM May 2, 14:45 UTCMay 2, 15:30 UTC45m
2026-05-01 CFS7802 YUM → PHX May 1, 23:55 UTCMay 2, 00:35 UTC40m
2026-05-01 CFS8802 PHX → YUM May 1, 14:30 UTCMay 1, 15:15 UTC45m
2026-05-01 CFS7802 YUM → PHX May 1, 00:15 UTCMay 1, 00:55 UTC40m
2026-04-30 CFS8802 PHX → YUM Apr 30, 15:00 UTCApr 30, 15:40 UTC40m
2026-04-30 CFS7802 YUM → PHX Apr 30, 00:10 UTCApr 30, 00:40 UTC30m
2026-04-29 CFS8802 PHX → YUM Apr 29, 15:30 UTCApr 29, 16:10 UTC40m

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 N880FE page for operator, model, and routing details .

Mode-S AC1E57 frequently asked

What is Mode-S code AC1E57?
AC1E57 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N880FE.
Where is Mode-S AC1E57 registered?
Mode-S code AC1E57 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 AC1E57 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 AC1E57, octal 53017127, decimal 11,279,959.
What flights does AC1E57 operate?
Mode-S AC1E57 has broadcast 9 distinct callsigns, including CFS8802, CFS7802, CFS4802, CFS7805, CFS7801.