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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 Jul 25, 15:00 UTC
Flights observed
104
Distinct callsigns
5
Country
US
Last broadcast
Jul 25, 15:00 UTC

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
BMJ1805 Bemidji Airlines 30 2026-07-22
BMJ1693 Bemidji Airlines 26 2026-07-25
BMJ1806 - 22 2026-07-21
BMJ1694 - 20 2026-07-24
BMJ1702 Bemidji Airlines 6 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 BMJ1702 DEN → GUC Jul 25, 14:10 UTCJul 25, 15:00 UTC50m
2026-07-25 BMJ1702 DEN → GUC Jul 25, 12:55 UTCJul 25, 13:35 UTC40m
2026-07-25 BMJ1693 GLD → DEN Jul 25, 01:55 UTCJul 25, 02:20 UTC25m
2026-07-24 BMJ1694 - Jul 24, 12:55 UTCJul 24, 13:35 UTC40m
2026-07-22 BMJ1805 DEN → TAD Jul 22, 01:35 UTCJul 22, 02:35 UTC1h 0m
2026-07-21 BMJ1806 - Jul 21, 13:20 UTCJul 21, 14:25 UTC1h 5m
2026-07-18 BMJ1702 - Jul 18, 14:10 UTCJul 18, 15:00 UTC50m
2026-07-18 BMJ1702 - Jul 18, 13:00 UTCJul 18, 13:35 UTC35m
2026-07-18 BMJ1805 DEN → TAD Jul 18, 00:39 UTCJul 18, 01:45 UTC1h 5m
2026-07-17 BMJ1806 - Jul 17, 12:50 UTCJul 17, 13:45 UTC55m
2026-07-17 BMJ1693 - Jul 17, 01:59 UTCJul 17, 02:20 UTC20m
2026-07-16 BMJ1694 - Jul 16, 12:34 UTCJul 16, 13:10 UTC35m
2026-07-09 BMJ1805 - Jul 9, 02:20 UTCJul 9, 03:35 UTC1h 15m
2026-07-08 BMJ1806 - Jul 8, 12:55 UTCJul 8, 13:45 UTC50m
2026-07-07 BMJ1805 - Jul 7, 00:30 UTCJul 7, 01:30 UTC1h 0m
2026-07-06 BMJ1805 - Jul 6, 22:50 UTCJul 6, 23:45 UTC55m
2026-07-04 BMJ1805 - Jul 4, 00:45 UTCJul 4, 01:40 UTC55m
2026-07-03 BMJ1806 - Jul 3, 12:50 UTCJul 3, 13:45 UTC55m
2026-07-02 BMJ1805 - Jul 2, 01:10 UTCJul 2, 02:00 UTC50m
2026-07-01 BMJ1806 - Jul 1, 13:45 UTCJul 1, 14:40 UTC55m
2026-06-30 BMJ1805 - Jun 30, 00:45 UTCJun 30, 01:35 UTC51m
2026-06-29 BMJ1805 - Jun 29, 22:24 UTCJun 29, 23:19 UTC55m
2026-06-27 BMJ1805 - Jun 27, 00:44 UTCJun 27, 01:49 UTC1h 5m
2026-06-26 BMJ1806 - Jun 26, 12:55 UTCJun 26, 13:49 UTC55m
2026-06-26 BMJ1693 - Jun 26, 02:14 UTCJun 26, 02:44 UTC30m
2026-06-25 BMJ1694 - Jun 25, 12:44 UTCJun 25, 13:20 UTC35m
2026-06-24 BMJ1805 - Jun 24, 00:49 UTCJun 24, 01:44 UTC55m
2026-06-23 BMJ1806 DEN → TAD Jun 23, 13:15 UTCJun 23, 14:10 UTC55m
2026-06-23 BMJ1805 - Jun 23, 00:50 UTCJun 23, 01:45 UTC55m
2026-06-22 BMJ1805 - Jun 22, 22:40 UTCJun 22, 23:39 UTC1h 0m
2026-06-20 BMJ1805 - Jun 20, 00:39 UTCJun 20, 01:34 UTC55m
2026-06-19 BMJ1806 DEN → TAD Jun 19, 12:44 UTCJun 19, 13:39 UTC55m
2026-06-18 BMJ1805 - Jun 18, 00:50 UTCJun 18, 01:40 UTC50m
2026-06-17 BMJ1806 DEN → TAD Jun 17, 13:00 UTCJun 17, 13:55 UTC55m
2026-06-17 BMJ1693 - Jun 17, 01:55 UTCJun 17, 02:20 UTC25m
2026-06-16 BMJ1694 - Jun 16, 12:35 UTCJun 16, 13:00 UTC25m
2026-06-16 BMJ1693 - Jun 16, 01:45 UTCJun 16, 02:09 UTC25m
2026-06-15 BMJ1693 - Jun 15, 22:40 UTCJun 15, 23:04 UTC25m
2026-06-13 BMJ1693 - Jun 13, 01:50 UTCJun 13, 02:05 UTC15m
2026-06-12 BMJ1694 SNY → DEN Jun 12, 12:45 UTCJun 12, 13:15 UTC30m
2026-06-12 BMJ1693 GLD → DEN Jun 12, 02:10 UTCJun 12, 02:30 UTC20m
2026-06-11 BMJ1694 SNY → DEN Jun 11, 12:50 UTCJun 11, 13:20 UTC30m
2026-06-11 BMJ1693 GLD → DEN Jun 11, 02:10 UTCJun 11, 02:30 UTC20m
2026-06-10 BMJ1694 SNY → DEN Jun 10, 12:30 UTCJun 10, 13:00 UTC30m
2026-06-10 BMJ1693 GLD → DEN Jun 10, 02:20 UTCJun 10, 02:45 UTC25m
2026-06-09 BMJ1694 SNY → DEN Jun 9, 12:40 UTCJun 9, 13:15 UTC35m
2026-06-06 BMJ1805 DEN → TAD Jun 6, 00:55 UTCJun 6, 02:00 UTC1h 5m
2026-06-05 BMJ1806 DEN → TAD Jun 5, 13:00 UTCJun 5, 13:55 UTC55m
2026-06-04 BMJ1693 GLD → DEN Jun 4, 02:10 UTCJun 4, 02:35 UTC25m
2026-06-03 BMJ1694 SNY → DEN Jun 3, 12:35 UTCJun 3, 13:05 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 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 Jul 25, 15:00 UTC.
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 BMJ1805, BMJ1693, BMJ1806, BMJ1694, BMJ1702.