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 5h ago
Flights observed
66
Distinct callsigns
6
Country
US
Last broadcast
5h 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 6 distinct

Callsign Airline Flights Last seen
BMJ46 Bemidji Airlines 16 2026-06-02
BMJ45 Bemidji Airlines 16 2026-06-03
BMJ1023 Bemidji Airlines 11 2026-05-08
BMJ1324 Bemidji Airlines 10 2026-05-08
BMJ1024 Bemidji Airlines 7 2026-05-08
BMJ1323 Bemidji Airlines 6 2026-05-08

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-03 BMJ45 LSE → MSP Jun 3, 00:40 UTCJun 3, 01:15 UTC35m
2026-06-02 BMJ46 MSP → LSE Jun 2, 12:35 UTCJun 2, 13:05 UTC30m
2026-06-02 BMJ45 LSE → MSP Jun 2, 00:50 UTCJun 2, 01:20 UTC30m
2026-05-30 BMJ46 MSP → LSE May 30, 12:35 UTCMay 30, 13:05 UTC30m
2026-05-30 BMJ45 LSE → MSP May 30, 00:40 UTCMay 30, 01:10 UTC30m
2026-05-29 BMJ46 MSP → LSE May 29, 12:40 UTCMay 29, 13:10 UTC30m
2026-05-29 BMJ45 LSE → MSP May 29, 01:00 UTCMay 29, 01:35 UTC35m
2026-05-28 BMJ46 MSP → LSE May 28, 12:40 UTCMay 28, 13:05 UTC25m
2026-05-28 BMJ45 LSE → MSP May 28, 00:35 UTCMay 28, 01:10 UTC35m
2026-05-27 BMJ46 MSP → LSE May 27, 11:55 UTCMay 27, 12:20 UTC25m
2026-05-27 BMJ45 LSE → MSP May 27, 00:39 UTCMay 27, 01:14 UTC35m
2026-05-23 BMJ46 MSP → LSE May 23, 12:50 UTCMay 23, 13:20 UTC30m
2026-05-23 BMJ45 LSE → MSP May 23, 00:45 UTCMay 23, 01:15 UTC30m
2026-05-22 BMJ46 MSP → LSE May 22, 12:45 UTCMay 22, 13:10 UTC25m
2026-05-22 BMJ45 LSE → MSP May 22, 00:50 UTCMay 22, 01:25 UTC35m
2026-05-21 BMJ46 MSP → LSE May 21, 12:40 UTCMay 21, 13:05 UTC25m
2026-05-21 BMJ45 LSE → MSP May 21, 00:50 UTCMay 21, 01:20 UTC30m
2026-05-20 BMJ46 MSP → LSE May 20, 12:35 UTCMay 20, 13:00 UTC25m
2026-05-20 BMJ45 LSE → MSP May 20, 00:40 UTCMay 20, 01:00 UTC20m
2026-05-19 BMJ46 MSP → LSE May 19, 12:35 UTCMay 19, 13:05 UTC30m
2026-05-19 BMJ45 LSE → MSP May 19, 00:45 UTCMay 19, 01:05 UTC20m
2026-05-16 BMJ46 MSP → LSE May 16, 12:31 UTCMay 16, 13:01 UTC30m
2026-05-16 BMJ45 LSE → MSP May 16, 00:40 UTCMay 16, 01:05 UTC25m
2026-05-15 BMJ46 MSP → LSE May 15, 12:30 UTCMay 15, 12:55 UTC25m
2026-05-15 BMJ45 LSE → MSP May 15, 00:40 UTCMay 15, 01:20 UTC40m
2026-05-14 BMJ46 MSP → LSE May 14, 12:35 UTCMay 14, 13:01 UTC25m
2026-05-14 BMJ45 LSE → MSP May 14, 00:50 UTCMay 14, 01:15 UTC25m
2026-05-13 BMJ45 LSE → MSP May 13, 20:30 UTCMay 13, 21:00 UTC30m
2026-05-13 BMJ46 MSP → LSE May 13, 12:25 UTCMay 13, 13:00 UTC35m
2026-05-13 BMJ45 LSE → MSP May 13, 00:40 UTCMay 13, 01:05 UTC25m
2026-05-12 BMJ46 MSP → LSE May 12, 12:30 UTCMay 12, 12:55 UTC25m
2026-05-09 BMJ46 MSP → LSE May 9, 12:35 UTCMay 9, 13:00 UTC25m
2026-05-08 BMJ1024 TVF → MSP May 8, 23:50 UTCMay 9, 00:40 UTC50m
2026-05-08 BMJ1323 MSP → TVF May 8, 21:50 UTCMay 8, 22:50 UTC1h 0m
2026-05-08 BMJ1023 TVF → MSP May 8, 20:05 UTCMay 8, 21:05 UTC1h 0m
2026-05-08 BMJ1324 MSP → TVF May 8, 14:20 UTCMay 8, 15:20 UTC1h 0m
2026-05-08 BMJ1024 TVF → MSP May 8, 00:05 UTCMay 8, 01:00 UTC55m
2026-05-07 BMJ1323 MSP → TVF May 7, 22:25 UTCMay 7, 23:24 UTC59m
2026-05-07 BMJ1023 TVF → MSP May 7, 20:35 UTCMay 7, 21:30 UTC55m
2026-05-07 BMJ1324 MSP → TVF May 7, 13:35 UTCMay 7, 14:30 UTC55m
2026-05-06 BMJ1023 TVF → MSP May 6, 22:15 UTCMay 6, 22:55 UTC40m
2026-04-28 BMJ1324 MSP → TVF Apr 28, 15:40 UTCApr 28, 16:30 UTC50m
2026-04-27 BMJ1023 TVF → MSP Apr 27, 20:20 UTCApr 27, 21:20 UTC1h 0m
2026-04-27 BMJ1324 MSP → TVF Apr 27, 12:00 UTCApr 27, 12:55 UTC55m
2026-04-25 BMJ1024 TVF → MSP Apr 25, 00:00 UTCApr 25, 00:55 UTC55m
2026-04-24 BMJ1323 MSP → TVF Apr 24, 22:10 UTCApr 24, 23:05 UTC55m
2026-04-24 BMJ1023 TVF → MSP Apr 24, 20:25 UTCApr 24, 21:25 UTC1h 0m
2026-04-24 BMJ1324 MSP → TVF Apr 24, 14:20 UTCApr 24, 15:10 UTC50m
2026-04-23 BMJ1023 TVF → MSP Apr 23, 20:35 UTCApr 23, 21:45 UTC1h 10m
2026-04-23 BMJ1324 MSP → TVF Apr 23, 14:20 UTCApr 23, 15:10 UTC50m

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 5h 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 6 distinct callsigns, including BMJ46, BMJ45, BMJ1023, BMJ1324, BMJ1024.