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 6h ago
Flights observed
128
Distinct callsigns
20
Country
US
Last broadcast
6h 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 20 distinct

Callsign Airline Flights Last seen
CFS8802 Empire Airlines 23 2026-06-04
CFS7802 Empire Airlines 22 2026-06-05
CFS4802 Empire Airlines 10 2026-06-01
CFS7805 - 8 2026-06-23
CFS7801 - 8 2026-06-15
CFS8801 Empire Airlines 7 2026-06-13
CFS8655 Empire Airlines 6 2026-07-10
CFS7655 - 6 2026-07-14
CFS8812 Empire Airlines 5 2026-05-29
CFS8650 - 5 2026-07-03
CFS7650 - 5 2026-07-04
CFS4801 - 5 2026-06-15
CFS4805 Empire Airlines 3 2026-06-22
CFS8775 Empire Airlines 2 2026-06-06
CFS7775 Empire Airlines 2 2026-06-09
CFS7664 - 2 2026-07-11
CFS4775 Empire Airlines 2 2026-06-08
CFS4655 - 2 2026-07-13
CFS201 Empire Airlines 2 2026-06-23
CFS880 - 1 2026-06-30

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 CFS7655 - Jul 14, 00:00 UTCJul 14, 00:50 UTC50m
2026-07-13 CFS4655 - Jul 13, 20:50 UTCJul 13, 21:45 UTC55m
2026-07-11 CFS7664 - Jul 11, 23:45 UTCJul 12, 00:15 UTC30m
2026-07-11 CFS7664 - Jul 11, 23:00 UTCJul 11, 23:15 UTC15m
2026-07-11 CFS8731 - Jul 11, 16:05 UTCJul 11, 17:00 UTC55m
2026-07-10 CFS7655 - Jul 10, 23:55 UTCJul 11, 00:45 UTC50m
2026-07-10 CFS8655 SMF → ACV Jul 10, 14:25 UTCJul 10, 15:20 UTC55m
2026-07-09 CFS7655 - Jul 9, 23:55 UTCJul 10, 00:45 UTC50m
2026-07-09 CFS8655 SMF → ACV Jul 9, 17:25 UTCJul 9, 17:50 UTC25m
2026-07-09 CFS8655 SMF → ACV Jul 9, 16:05 UTCJul 9, 16:20 UTC15m
2026-07-09 CFS8655 SMF → ACV Jul 9, 14:20 UTCJul 9, 15:20 UTC1h 0m
2026-07-09 CFS7655 - Jul 9, 00:00 UTCJul 9, 00:50 UTC50m
2026-07-08 CFS8655 SMF → ACV Jul 8, 14:30 UTCJul 8, 15:30 UTC1h 0m
2026-07-07 CFS7655 - Jul 7, 23:55 UTCJul 8, 00:45 UTC50m
2026-07-07 CFS8655 SMF → ACV Jul 7, 14:25 UTCJul 7, 15:20 UTC55m
2026-07-06 CFS7655 - Jul 6, 23:50 UTCJul 7, 00:45 UTC55m
2026-07-06 CFS4655 - Jul 6, 21:00 UTCJul 6, 21:50 UTC50m
2026-07-04 CFS7650 - Jul 4, 00:25 UTCJul 4, 01:00 UTC35m
2026-07-03 CFS8650 - Jul 3, 14:50 UTCJul 3, 15:20 UTC30m
2026-07-03 CFS7650 - Jul 3, 00:30 UTCJul 3, 01:10 UTC40m
2026-07-02 CFS8650 - Jul 2, 14:50 UTCJul 2, 15:20 UTC30m
2026-06-30 CFS880 SMF → SMF Jun 30, 22:25 UTCJun 30, 22:30 UTC5m
2026-06-27 CFS4650 - Jun 27, 16:24 UTCJun 27, 16:59 UTC35m
2026-06-27 CFS7650 - Jun 27, 00:34 UTCJun 27, 01:04 UTC30m
2026-06-26 CFS8650 - Jun 26, 15:20 UTCJun 26, 15:54 UTC35m
2026-06-26 CFS7650 - Jun 26, 00:39 UTCJun 26, 01:10 UTC30m
2026-06-25 CFS8650 - Jun 25, 16:20 UTCJun 25, 16:50 UTC30m
2026-06-25 CFS7650 - Jun 25, 00:35 UTCJun 25, 01:04 UTC30m
2026-06-24 CFS8650 - Jun 24, 15:09 UTCJun 24, 15:39 UTC30m
2026-06-23 CFS201 PDX → YKM Jun 23, 17:20 UTCJun 23, 19:24 UTC2h 5m
2026-06-23 CFS201 PDX → YKM Jun 23, 15:09 UTCJun 23, 16:44 UTC1h 35m
2026-06-23 CFS7805 - Jun 23, 00:30 UTCJun 23, 01:04 UTC35m
2026-06-22 CFS4805 PHX → YUM Jun 22, 21:19 UTCJun 22, 21:59 UTC40m
2026-06-15 CFS7801 - Jun 15, 23:54 UTCJun 16, 01:04 UTC1h 10m
2026-06-15 CFS4801 - Jun 15, 21:09 UTCJun 15, 22:05 UTC55m
2026-06-13 CFS4801 HII → PHX Jun 13, 17:10 UTCJun 13, 18:15 UTC1h 5m
2026-06-13 CFS8801 PHX → HII Jun 13, 15:20 UTCJun 13, 16:20 UTC1h 0m
2026-06-09 CFS7775 FLG → PHX Jun 9, 00:40 UTCJun 9, 01:15 UTC35m
2026-06-08 CFS4775 PHX → FLG Jun 8, 21:50 UTCJun 8, 22:20 UTC30m
2026-06-06 CFS4775 PHX → FLG Jun 6, 16:55 UTCJun 6, 17:29 UTC35m
2026-06-06 CFS8775 PHX → FLG Jun 6, 15:05 UTCJun 6, 15:34 UTC30m
2026-06-06 CFS7775 FLG → PHX Jun 6, 00:25 UTCJun 6, 01:05 UTC40m
2026-06-05 CFS8775 PHX → FLG Jun 5, 14:40 UTCJun 5, 15:10 UTC30m
2026-06-05 CFS7802 YUM → PHX Jun 5, 00:00 UTCJun 5, 01:25 UTC1h 25m
2026-06-04 CFS8802 PHX → YUM Jun 4, 14:10 UTCJun 4, 15:05 UTC55m
2026-06-04 CFS7802 YUM → PHX Jun 4, 00:05 UTCJun 4, 01:00 UTC55m
2026-06-03 CFS8802 PHX → YUM Jun 3, 14:25 UTCJun 3, 15:10 UTC45m
2026-06-03 CFS7802 YUM → PHX Jun 3, 00:05 UTCJun 3, 00:50 UTC45m
2026-06-02 CFS8802 PHX → YUM Jun 2, 15:10 UTCJun 2, 15:55 UTC45m
2026-06-02 CFS7802 YUM → PHX Jun 2, 00:05 UTCJun 2, 01:00 UTC55m

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 6h 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 20 distinct callsigns, including CFS8802, CFS7802, CFS4802, CFS7805, CFS7801.