Apparatus

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sensors Mode-S transponder

A81989

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N62069 · BEECH 65 Queen Air · operated by BEMIDJI AVIATION SERVICES INC

Hex
A81989
Octal
52014611
Decimal
11,016,585
Country
US
Tail
N62069
Type
BE65
No current signal · last broadcast 7h ago
Flights observed
52
Distinct callsigns
5
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A81989.

Country allocation

The ICAO 24-bit address A81989 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 5 distinct

Callsign Airline Flights Last seen
BMJ1693 Bemidji Airlines 15 2026-05-28
BMJ1805 Bemidji Airlines 13 2026-05-30
BMJ1806 Bemidji Airlines 11 2026-05-29
BMJ1694 Bemidji Airlines 11 2026-05-27
BMJ1702 Bemidji Airlines 2 2026-05-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-30 BMJ1805 DEN → TAD May 30, 00:55 UTCMay 30, 01:45 UTC50m
2026-05-29 BMJ1806 DEN → TAD May 29, 12:55 UTCMay 29, 13:55 UTC1h 0m
2026-05-28 BMJ1693 GLD → DEN May 28, 02:10 UTCMay 28, 02:30 UTC20m
2026-05-27 BMJ1694 SNY → DEN May 27, 12:35 UTCMay 27, 13:05 UTC30m
2026-05-23 BMJ1702 DEN → GUC May 23, 14:25 UTCMay 23, 15:15 UTC50m
2026-05-23 BMJ1702 DEN → GUC May 23, 13:15 UTCMay 23, 13:50 UTC35m
2026-05-23 BMJ1693 GLD → DEN May 23, 02:10 UTCMay 23, 02:40 UTC29m
2026-05-22 BMJ1694 SNY → DEN May 22, 12:50 UTCMay 22, 13:15 UTC25m
2026-05-21 BMJ1693 GLD → DEN May 21, 02:10 UTCMay 21, 02:45 UTC35m
2026-05-20 BMJ1694 SNY → DEN May 20, 12:25 UTCMay 20, 12:55 UTC30m
2026-05-20 BMJ1693 GLD → DEN May 20, 01:55 UTCMay 20, 02:05 UTC10m
2026-05-19 BMJ1694 SNY → DEN May 19, 12:35 UTCMay 19, 13:05 UTC30m
2026-05-16 BMJ1693 GLD → DEN May 16, 01:30 UTCMay 16, 02:00 UTC30m
2026-05-15 BMJ1694 SNY → DEN May 15, 12:30 UTCMay 15, 13:05 UTC35m
2026-05-15 BMJ1693 GLD → DEN May 15, 01:55 UTCMay 15, 02:05 UTC10m
2026-05-14 BMJ1694 SNY → DEN May 14, 12:40 UTCMay 14, 13:10 UTC30m
2026-05-14 BMJ1805 DEN → TAD May 14, 00:50 UTCMay 14, 01:50 UTC1h 0m
2026-05-13 BMJ1806 DEN → TAD May 13, 13:00 UTCMay 13, 13:50 UTC50m
2026-05-09 BMJ1805 DEN → TAD May 9, 00:45 UTCMay 9, 01:35 UTC50m
2026-05-08 BMJ1806 DEN → TAD May 8, 13:15 UTCMay 8, 14:05 UTC50m
2026-05-08 BMJ1693 GLD → DEN May 8, 02:14 UTCMay 8, 02:35 UTC20m
2026-05-07 BMJ1694 SNY → DEN May 7, 12:50 UTCMay 7, 13:20 UTC30m
2026-05-05 BMJ1693 GLD → DEN May 5, 01:35 UTCMay 5, 02:01 UTC25m
2026-05-04 BMJ1693 GLD → DEN May 4, 23:00 UTCMay 4, 23:25 UTC25m
2026-05-02 BMJ1805 DEN → TAD May 2, 15:45 UTCMay 2, 16:40 UTC55m
2026-05-01 BMJ1806 DEN → TAD May 1, 12:55 UTCMay 1, 13:50 UTC55m
2026-04-30 BMJ1693 GLD → DEN Apr 30, 02:00 UTCApr 30, 02:25 UTC25m
2026-04-29 BMJ1693 GLD → DEN Apr 29, 22:55 UTCApr 29, 23:20 UTC24m
2026-04-29 BMJ1693 GLD → DEN Apr 29, 01:59 UTCApr 29, 02:30 UTC30m
2026-04-28 BMJ1694 SNY → DEN Apr 28, 12:55 UTCApr 28, 13:25 UTC30m
2026-04-28 BMJ1805 DEN → TAD Apr 28, 00:55 UTCApr 28, 01:50 UTC55m
2026-04-27 BMJ1805 DEN → TAD Apr 27, 22:40 UTCApr 27, 23:35 UTC55m
2026-04-25 BMJ1805 DEN → TAD Apr 25, 01:00 UTCApr 25, 01:45 UTC45m
2026-04-24 BMJ1806 DEN → TAD Apr 24, 13:25 UTCApr 24, 14:20 UTC55m
2026-04-23 BMJ1693 GLD → DEN Apr 23, 02:10 UTCApr 23, 02:35 UTC25m
2026-04-22 BMJ1694 SNY → DEN Apr 22, 12:30 UTCApr 22, 13:00 UTC30m
2026-04-22 BMJ1805 DEN → TAD Apr 22, 00:55 UTCApr 22, 01:50 UTC55m
2026-04-21 BMJ1806 - Apr 21, 13:20 UTCApr 21, 14:10 UTC50m
2026-04-18 BMJ1805 DEN → TAD Apr 18, 01:25 UTCApr 18, 01:35 UTC10m
2026-04-18 BMJ1805 DEN → TAD Apr 18, 00:45 UTCApr 18, 01:20 UTC35m
2026-04-17 BMJ1806 - Apr 17, 13:20 UTCApr 17, 13:45 UTC25m
2026-04-17 BMJ1806 - Apr 17, 12:50 UTCApr 17, 13:15 UTC25m
2026-04-17 BMJ1805 DEN → TAD Apr 17, 01:20 UTCApr 17, 01:55 UTC35m
2026-04-17 BMJ1805 DEN → TAD Apr 17, 01:00 UTCApr 17, 01:15 UTC15m
2026-04-16 BMJ1806 - Apr 16, 13:15 UTCApr 16, 13:40 UTC25m
2026-04-16 BMJ1806 - Apr 16, 12:49 UTCApr 16, 13:05 UTC15m
2026-04-16 BMJ1693 GLD → DEN Apr 16, 01:40 UTCApr 16, 02:00 UTC20m
2026-04-15 BMJ1694 SNY → DEN Apr 15, 13:01 UTCApr 15, 13:10 UTC10m
2026-04-15 BMJ1694 SNY → DEN Apr 15, 12:40 UTCApr 15, 12:55 UTC15m
2026-04-15 BMJ1805 DEN → TAD Apr 15, 01:10 UTCApr 15, 01:55 UTC45m

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 N62069 page for operator, model, and routing details .

Mode-S A81989 frequently asked

What is Mode-S code A81989?
A81989 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N62069.
Where is Mode-S A81989 registered?
Mode-S code A81989 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 A81989 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A81989, octal 52014611, decimal 11,016,585.
What flights does A81989 operate?
Mode-S A81989 has broadcast 5 distinct callsigns, including BMJ1693, BMJ1805, BMJ1806, BMJ1694, BMJ1702.