Apparatus

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sensors Mode-S transponder

A1FBFF

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N227LC · SWEARINGEN Metro · operated by BEMIDJI AVIATION SERVICES INC

Hex
A1FBFF
Octal
50375777
Decimal
10,615,807
Country
US
Tail
N227LC
Type
SW4
No current signal · last broadcast 3h ago
Flights observed
132
Distinct callsigns
8
Country
US
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S A1FBFF.

Country allocation

The ICAO 24-bit address A1FBFF 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 8 distinct

Callsign Airline Flights Last seen
BMJ46 - 42 2026-07-08
BMJ45 - 41 2026-07-09
BMJ1023 Bemidji Airlines 11 2026-05-08
BMJ1324 Bemidji Airlines 10 2026-05-08
BMJ58 - 8 2026-07-18
BMJ57 Bemidji Airlines 7 2026-07-18
BMJ1024 Bemidji Airlines 7 2026-05-08
BMJ1323 Bemidji Airlines 6 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 BMJ58 - Jul 18, 12:35 UTCJul 18, 13:00 UTC25m
2026-07-18 BMJ57 DLH → MSP Jul 18, 00:25 UTCJul 18, 01:05 UTC40m
2026-07-17 BMJ58 - Jul 17, 12:15 UTCJul 17, 12:45 UTC30m
2026-07-17 BMJ57 - Jul 17, 00:25 UTCJul 17, 01:00 UTC35m
2026-07-16 BMJ58 - Jul 16, 12:20 UTCJul 16, 12:49 UTC30m
2026-07-16 BMJ57 - Jul 16, 00:20 UTCJul 16, 00:55 UTC35m
2026-07-15 BMJ58 - Jul 15, 12:35 UTCJul 15, 13:05 UTC30m
2026-07-15 BMJ57 - Jul 15, 00:35 UTCJul 15, 01:15 UTC40m
2026-07-14 BMJ58 - Jul 14, 11:55 UTCJul 14, 12:25 UTC30m
2026-07-14 BMJ57 - Jul 14, 00:15 UTCJul 14, 01:00 UTC45m
2026-07-11 BMJ58 - Jul 11, 13:20 UTCJul 11, 13:50 UTC30m
2026-07-11 BMJ57 - Jul 11, 00:15 UTCJul 11, 00:50 UTC35m
2026-07-10 BMJ58 - Jul 10, 12:25 UTCJul 10, 12:55 UTC30m
2026-07-10 BMJ57 - Jul 10, 00:35 UTCJul 10, 01:10 UTC35m
2026-07-09 BMJ58 - Jul 9, 12:35 UTCJul 9, 13:05 UTC30m
2026-07-09 BMJ45 - Jul 9, 00:50 UTCJul 9, 01:15 UTC25m
2026-07-08 BMJ46 - Jul 8, 12:30 UTCJul 8, 13:00 UTC30m
2026-07-08 BMJ45 - Jul 8, 00:50 UTCJul 8, 01:20 UTC30m
2026-07-07 BMJ46 - Jul 7, 12:30 UTCJul 7, 12:55 UTC25m
2026-07-07 BMJ45 - Jul 7, 00:40 UTCJul 7, 01:15 UTC35m
2026-07-04 BMJ46 - Jul 4, 01:25 UTCJul 4, 01:50 UTC25m
2026-07-04 BMJ45 - Jul 4, 00:35 UTCJul 4, 01:15 UTC40m
2026-07-03 BMJ46 - Jul 3, 12:05 UTCJul 3, 12:30 UTC25m
2026-07-03 BMJ45 - Jul 3, 00:50 UTCJul 3, 01:25 UTC35m
2026-07-02 BMJ46 - Jul 2, 12:20 UTCJul 2, 12:50 UTC30m
2026-07-02 BMJ45 - Jul 2, 00:50 UTCJul 2, 01:15 UTC25m
2026-07-01 BMJ46 - Jul 1, 12:40 UTCJul 1, 13:05 UTC25m
2026-07-01 BMJ45 - Jul 1, 00:50 UTCJul 1, 01:15 UTC25m
2026-06-30 BMJ46 - Jun 30, 12:30 UTCJun 30, 13:00 UTC30m
2026-06-30 BMJ45 - Jun 30, 00:45 UTCJun 30, 01:14 UTC30m
2026-06-27 BMJ46 - Jun 27, 00:39 UTCJun 27, 01:09 UTC30m
2026-06-26 BMJ46 - Jun 26, 11:40 UTCJun 26, 12:10 UTC30m
2026-06-26 BMJ45 - Jun 26, 00:50 UTCJun 26, 01:24 UTC35m
2026-06-25 BMJ46 - Jun 25, 12:44 UTCJun 25, 13:14 UTC30m
2026-06-25 BMJ45 - Jun 25, 00:55 UTCJun 25, 01:14 UTC20m
2026-06-24 BMJ46 - Jun 24, 12:40 UTCJun 24, 13:00 UTC20m
2026-06-24 BMJ45 - Jun 24, 00:49 UTCJun 24, 01:24 UTC35m
2026-06-23 BMJ46 - Jun 23, 12:20 UTCJun 23, 12:49 UTC30m
2026-06-23 BMJ45 - Jun 23, 00:45 UTCJun 23, 01:20 UTC35m
2026-06-20 BMJ46 - Jun 20, 12:39 UTCJun 20, 13:04 UTC25m
2026-06-20 BMJ45 - Jun 20, 00:44 UTCJun 20, 01:24 UTC40m
2026-06-19 BMJ46 - Jun 19, 12:29 UTCJun 19, 12:54 UTC25m
2026-06-19 BMJ45 - Jun 19, 00:40 UTCJun 19, 01:04 UTC25m
2026-06-18 BMJ46 - Jun 18, 11:55 UTCJun 18, 12:25 UTC30m
2026-06-18 BMJ45 - Jun 18, 00:35 UTCJun 18, 01:00 UTC25m
2026-06-17 BMJ46 - Jun 17, 12:35 UTCJun 17, 13:05 UTC30m
2026-06-17 BMJ45 - Jun 17, 00:45 UTCJun 17, 01:05 UTC20m
2026-06-16 BMJ46 - Jun 16, 12:35 UTCJun 16, 13:00 UTC25m
2026-06-16 BMJ45 - Jun 16, 00:45 UTCJun 16, 01:10 UTC25m
2026-06-13 BMJ46 - Jun 13, 12:35 UTCJun 13, 13:00 UTC25m

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 N227LC page for operator, model, and routing details .

Mode-S A1FBFF frequently asked

What is Mode-S code A1FBFF?
A1FBFF is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N227LC.
Where is Mode-S A1FBFF registered?
Mode-S code A1FBFF 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 A1FBFF broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1FBFF, octal 50375777, decimal 10,615,807.
What flights does A1FBFF operate?
Mode-S A1FBFF has broadcast 8 distinct callsigns, including BMJ46, BMJ45, BMJ1023, BMJ1324, BMJ58.