Apparatus

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sensors Mode-S transponder

A0CA49

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N150BA · DE HAVILLAND DHC-3 Otter · operated by KENAI RIVER XPRESS LLC

Hex
A0CA49
Octal
50145111
Decimal
10,537,545
Country
US
Tail
N150BA
Type
DHC3
No current signal · last broadcast 26d ago
Flights observed
62
Distinct callsigns
1
Country
US
Last broadcast
26d ago

Last known position

Most recent position reported by Mode-S A0CA49.

Country allocation

The ICAO 24-bit address A0CA49 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 1 distinct

Callsign Airline Flights Last seen
N150BA - 62 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N150BA - Jul 26, 17:30 UTCJul 26, 18:25 UTC55m
2026-07-25 N150BA - Jul 25, 23:25 UTCJul 25, 23:55 UTC30m
2026-07-25 N150BA - Jul 25, 17:00 UTCJul 25, 17:30 UTC30m
2026-07-20 N150BA - Jul 20, 06:20 UTCJul 20, 06:55 UTC35m
2026-07-20 N150BA - Jul 20, 04:45 UTCJul 20, 05:15 UTC30m
2026-07-18 N150BA - Jul 18, 23:00 UTCJul 18, 23:35 UTC35m
2026-07-18 N150BA - Jul 18, 17:00 UTCJul 18, 17:25 UTC25m
2026-07-17 N150BA - Jul 17, 23:55 UTCJul 18, 00:55 UTC1h 0m
2026-07-17 N150BA - Jul 17, 18:19 UTCJul 17, 18:50 UTC30m
2026-07-17 N150BA - Jul 17, 01:35 UTCJul 17, 02:10 UTC35m
2026-07-16 N150BA - Jul 16, 19:55 UTCJul 16, 20:25 UTC30m
2026-07-15 N150BA - Jul 15, 22:15 UTCJul 15, 23:00 UTC45m
2026-07-15 N150BA - Jul 15, 20:10 UTCJul 15, 20:55 UTC45m
2026-07-12 N150BA - Jul 12, 17:50 UTCJul 12, 18:35 UTC45m
2026-07-11 N150BA - Jul 11, 21:50 UTCJul 11, 22:20 UTC30m
2026-07-11 N150BA - Jul 11, 06:15 UTCJul 11, 06:45 UTC30m
2026-07-11 N150BA - Jul 11, 05:01 UTCJul 11, 05:31 UTC30m
2026-07-10 N150BA - Jul 10, 05:45 UTCJul 10, 06:25 UTC40m
2026-07-10 N150BA - Jul 10, 04:15 UTCJul 10, 05:05 UTC50m
2026-07-10 N150BA SOV → SXQ Jul 10, 01:15 UTCJul 10, 01:55 UTC40m
2026-07-09 N150BA - Jul 9, 23:05 UTCJul 9, 23:50 UTC45m
2026-07-09 N150BA - Jul 9, 20:35 UTCJul 9, 22:05 UTC1h 30m
2026-07-09 N150BA - Jul 9, 18:15 UTCJul 9, 18:55 UTC40m
2026-07-09 N150BA - Jul 9, 16:20 UTCJul 9, 17:05 UTC45m
2026-07-08 N150BA - Jul 8, 04:55 UTCJul 8, 05:30 UTC35m
2026-07-07 N150BA - Jul 7, 22:20 UTCJul 7, 23:15 UTC55m
2026-07-07 N150BA - Jul 7, 04:15 UTCJul 7, 04:55 UTC40m
2026-07-06 N150BA - Jul 6, 18:10 UTCJul 6, 18:35 UTC25m
2026-07-06 N150BA - Jul 6, 06:55 UTCJul 6, 07:25 UTC30m
2026-07-06 N150BA - Jul 6, 05:40 UTCJul 6, 06:20 UTC40m
2026-07-05 N150BA - Jul 5, 06:25 UTCJul 5, 07:00 UTC35m
2026-07-05 N150BA - Jul 5, 05:00 UTCJul 5, 05:30 UTC30m
2026-07-04 N150BA - Jul 4, 19:20 UTCJul 4, 19:55 UTC35m
2026-07-04 N150BA - Jul 4, 16:50 UTCJul 4, 17:25 UTC35m
2026-07-04 N150BA - Jul 4, 06:50 UTCJul 4, 07:25 UTC35m
2026-07-04 N150BA - Jul 4, 04:30 UTCJul 4, 04:55 UTC25m
2026-07-03 N150BA - Jul 3, 20:10 UTCJul 3, 20:40 UTC30m
2026-07-03 N150BA - Jul 3, 17:05 UTCJul 3, 17:35 UTC30m
2026-07-02 N150BA - Jul 2, 07:20 UTCJul 2, 07:55 UTC35m
2026-07-02 N150BA - Jul 2, 01:05 UTCJul 2, 01:35 UTC30m
2026-06-29 N150BA - Jun 29, 03:39 UTCJun 29, 04:14 UTC35m
2026-06-29 N150BA - Jun 29, 01:39 UTCJun 29, 02:25 UTC45m
2026-06-28 N150BA - Jun 28, 06:34 UTCJun 28, 07:09 UTC35m
2026-06-28 N150BA - Jun 28, 01:50 UTCJun 28, 02:14 UTC25m
2026-06-27 N150BA - Jun 27, 20:55 UTCJun 27, 21:40 UTC45m
2026-06-27 N150BA - Jun 27, 19:24 UTCJun 27, 20:04 UTC40m
2026-06-26 N150BA - Jun 26, 06:00 UTCJun 26, 06:29 UTC30m
2026-06-25 N150BA - Jun 25, 17:05 UTCJun 25, 17:34 UTC30m
2026-06-23 N150BA - Jun 23, 00:39 UTCJun 23, 01:25 UTC45m
2026-06-22 N150BA - Jun 22, 22:59 UTCJun 22, 23:39 UTC40m

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 N150BA page for operator, model, and routing details .

Mode-S A0CA49 frequently asked

What is Mode-S code A0CA49?
A0CA49 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N150BA.
Where is Mode-S A0CA49 registered?
Mode-S code A0CA49 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 A0CA49 broadcasting right now?
No active broadcast right now. Last signal was 26d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0CA49, octal 50145111, decimal 10,537,545.
What flights does A0CA49 operate?
Mode-S A0CA49 has broadcast 1 distinct callsign, including N150BA.