Apparatus

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sensors Mode-S transponder

A0954C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N137BA · BEECH 99 Airliner · operated by BEMIDJI AVIATION SERVICES INC

Hex
A0954C
Octal
50112514
Decimal
10,523,980
Country
US
Tail
N137BA
Type
BE99
No current signal · last broadcast 5h ago
Flights observed
89
Distinct callsigns
7
Country
US
Last broadcast
5h ago

Last known position

Most recent position reported by Mode-S A0954C.

Country allocation

The ICAO 24-bit address A0954C 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 7 distinct

Callsign Airline Flights Last seen
BMJ70 - 26 2026-06-26
BMJ54 - 19 2026-06-26
BMJ53 - 19 2026-06-27
BMJ52 - 12 2026-07-15
BMJ51 Bemidji Airlines 11 2026-07-18
BMJ82 - 1 2026-06-25
BMJ26 Bemidji Airlines 1 2026-04-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 BMJ51 BJI → MSP Jul 18, 00:50 UTCJul 18, 01:25 UTC35m
2026-07-15 BMJ52 - Jul 15, 12:25 UTCJul 15, 13:00 UTC35m
2026-07-10 BMJ51 - Jul 10, 00:45 UTCJul 10, 01:20 UTC35m
2026-07-03 BMJ52 - Jul 3, 12:10 UTCJul 3, 12:45 UTC35m
2026-07-03 BMJ51 - Jul 3, 01:05 UTCJul 3, 01:30 UTC25m
2026-07-02 BMJ52 - Jul 2, 12:35 UTCJul 2, 13:15 UTC40m
2026-07-02 BMJ51 - Jul 2, 00:45 UTCJul 2, 01:20 UTC35m
2026-07-01 BMJ52 - Jul 1, 12:55 UTCJul 1, 13:20 UTC25m
2026-07-01 BMJ51 - Jul 1, 00:55 UTCJul 1, 01:30 UTC35m
2026-06-30 BMJ52 - Jun 30, 12:50 UTCJun 30, 13:15 UTC25m
2026-06-27 BMJ53 - Jun 27, 01:09 UTCJun 27, 01:44 UTC35m
2026-06-26 BMJ54 - Jun 26, 11:55 UTCJun 26, 12:24 UTC30m
2026-06-26 BMJ70 - Jun 26, 10:15 UTCJun 26, 10:55 UTC40m
2026-06-25 BMJ82 - Jun 25, 12:40 UTCJun 25, 13:14 UTC35m
2026-06-25 BMJ70 - Jun 25, 01:54 UTCJun 25, 02:30 UTC35m
2026-06-24 BMJ70 - Jun 24, 12:44 UTCJun 24, 13:14 UTC30m
2026-06-24 BMJ51 - Jun 24, 00:55 UTCJun 24, 01:19 UTC25m
2026-06-23 BMJ52 - Jun 23, 12:25 UTCJun 23, 13:00 UTC35m
2026-06-23 BMJ53 - Jun 23, 00:39 UTCJun 23, 01:10 UTC30m
2026-06-20 BMJ54 MSP → HIB Jun 20, 12:30 UTCJun 20, 12:59 UTC30m
2026-06-20 BMJ53 - Jun 20, 00:59 UTCJun 20, 01:29 UTC30m
2026-06-19 BMJ54 MSP → HIB Jun 19, 12:34 UTCJun 19, 13:04 UTC30m
2026-06-19 BMJ53 - Jun 19, 00:49 UTCJun 19, 01:19 UTC30m
2026-06-18 BMJ54 MSP → HIB Jun 18, 11:50 UTCJun 18, 12:20 UTC30m
2026-06-18 BMJ53 - Jun 18, 00:55 UTCJun 18, 01:25 UTC30m
2026-06-17 BMJ54 MSP → HIB Jun 17, 12:45 UTCJun 17, 13:15 UTC30m
2026-06-17 BMJ53 - Jun 17, 00:55 UTCJun 17, 01:25 UTC30m
2026-06-16 BMJ54 MSP → HIB Jun 16, 12:55 UTCJun 16, 13:30 UTC35m
2026-06-16 BMJ53 - Jun 16, 01:00 UTCJun 16, 01:35 UTC35m
2026-06-13 BMJ54 MSP → HIB Jun 13, 12:40 UTCJun 13, 13:10 UTC30m
2026-06-13 BMJ53 - Jun 13, 00:55 UTCJun 13, 01:45 UTC50m
2026-06-12 BMJ54 MSP → HIB Jun 12, 12:30 UTCJun 12, 13:00 UTC30m
2026-06-12 BMJ53 GPZ → MSP Jun 12, 01:05 UTCJun 12, 01:40 UTC35m
2026-06-11 BMJ54 MSP → HIB Jun 11, 12:40 UTCJun 11, 13:10 UTC30m
2026-06-11 BMJ53 GPZ → MSP Jun 11, 00:20 UTCJun 11, 01:10 UTC50m
2026-06-10 BMJ54 MSP → HIB Jun 10, 12:20 UTCJun 10, 12:55 UTC35m
2026-06-10 BMJ53 GPZ → MSP Jun 10, 00:45 UTCJun 10, 01:15 UTC30m
2026-06-09 BMJ54 MSP → HIB Jun 9, 19:35 UTCJun 9, 20:05 UTC30m
2026-06-09 BMJ53 GPZ → MSP Jun 9, 01:05 UTCJun 9, 01:35 UTC30m
2026-06-06 BMJ54 MSP → HIB Jun 6, 12:30 UTCJun 6, 13:00 UTC30m
2026-06-06 BMJ53 GPZ → MSP Jun 6, 01:35 UTCJun 6, 01:45 UTC10m
2026-06-06 BMJ53 GPZ → MSP Jun 6, 01:10 UTCJun 6, 01:30 UTC20m
2026-06-05 BMJ54 MSP → HIB Jun 5, 12:35 UTCJun 5, 13:05 UTC30m
2026-06-05 BMJ53 GPZ → MSP Jun 5, 00:40 UTCJun 5, 01:15 UTC35m
2026-06-04 BMJ54 MSP → HIB Jun 4, 12:20 UTCJun 4, 12:45 UTC25m
2026-06-04 BMJ53 GPZ → MSP Jun 4, 00:55 UTCJun 4, 01:25 UTC30m
2026-06-03 BMJ54 MSP → HIB Jun 3, 12:35 UTCJun 3, 13:00 UTC25m
2026-05-27 BMJ70 INL → BJI May 27, 16:05 UTCMay 27, 16:40 UTC35m
2026-05-27 BMJ70 INL → BJI May 27, 12:05 UTCMay 27, 12:35 UTC30m
2026-05-23 BMJ52 MSP → BJI May 23, 12:55 UTCMay 23, 13:25 UTC30m

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 N137BA page for operator, model, and routing details .

Mode-S A0954C frequently asked

What is Mode-S code A0954C?
A0954C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N137BA.
Where is Mode-S A0954C registered?
Mode-S code A0954C 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 A0954C 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 A0954C, octal 50112514, decimal 10,523,980.
What flights does A0954C operate?
Mode-S A0954C has broadcast 7 distinct callsigns, including BMJ70, BMJ54, BMJ53, BMJ52, BMJ51.