Apparatus

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sensors Mode-S transponder

A91C54

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6863T · operated by BERING CAPITAL LLC

Hex
A91C54
Octal
52216124
Decimal
11,082,836
Country
US
Tail
N6863T
Type
C172
No current signal · last broadcast 2d ago
Flights observed
117
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A91C54.

Country allocation

The ICAO 24-bit address A91C54 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
N6863T - 117 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 N6863T - Jul 12, 02:10 UTCJul 12, 02:25 UTC15m
2026-07-12 N6863T MRI → MRI Jul 12, 01:35 UTCJul 12, 01:45 UTC10m
2026-07-11 N6863T - Jul 11, 02:40 UTCJul 11, 02:50 UTC10m
2026-07-11 N6863T - Jul 11, 02:25 UTCJul 11, 02:35 UTC10m
2026-07-11 N6863T MRI → WWA Jul 11, 01:40 UTCJul 11, 02:20 UTC40m
2026-07-10 N6863T MRI → MRI Jul 10, 22:55 UTCJul 10, 23:35 UTC40m
2026-07-09 N6863T - Jul 9, 22:10 UTCJul 9, 22:30 UTC20m
2026-07-08 N6863T MRI → MRI Jul 8, 23:35 UTCJul 9, 00:50 UTC1h 15m
2026-07-08 N6863T BGQ → MRI Jul 8, 02:50 UTCJul 8, 03:05 UTC15m
2026-07-08 N6863T MRI → BGQ Jul 8, 00:45 UTCJul 8, 01:00 UTC15m
2026-07-07 N6863T - Jul 7, 23:35 UTCJul 7, 23:50 UTC15m
2026-07-07 N6863T - Jul 7, 23:25 UTCJul 7, 23:30 UTC5m
2026-07-06 N6863T MRI → MRI Jul 6, 20:00 UTCJul 6, 21:55 UTC1h 55m
2026-07-02 N6863T TKA → MRI Jul 2, 06:25 UTCJul 2, 07:10 UTC45m
2026-07-02 N6863T - Jul 2, 03:40 UTCJul 2, 04:20 UTC40m
2026-07-02 N6863T - Jul 2, 02:55 UTCJul 2, 03:15 UTC20m
2026-07-02 N6863T - Jul 2, 01:40 UTCJul 2, 02:20 UTC40m
2026-07-01 N6863T - Jul 1, 22:45 UTCJul 1, 23:00 UTC15m
2026-07-01 N6863T - Jul 1, 21:45 UTCJul 1, 22:10 UTC25m
2026-07-01 N6863T - Jul 1, 19:25 UTCJul 1, 19:50 UTC25m
2026-07-01 N6863T - Jul 1, 18:20 UTCJul 1, 18:50 UTC30m
2026-07-01 N6863T - Jul 1, 17:20 UTCJul 1, 17:40 UTC20m
2026-07-01 N6863T - Jul 1, 03:20 UTCJul 1, 04:00 UTC40m
2026-07-01 N6863T MRI → TKA Jul 1, 02:30 UTCJul 1, 03:15 UTC45m
2026-07-01 N6863T - Jul 1, 00:35 UTCJul 1, 01:15 UTC40m
2026-06-30 N6863T - Jun 30, 23:15 UTCJul 1, 00:10 UTC55m
2026-06-30 N6863T - Jun 30, 20:40 UTCJun 30, 22:25 UTC1h 45m
2026-06-27 N6863T - Jun 27, 20:14 UTCJun 27, 22:49 UTC2h 35m
2026-06-25 N6863T HOM → MRI Jun 25, 19:05 UTCJun 25, 20:25 UTC1h 20m
2026-06-25 N6863T - Jun 25, 17:20 UTCJun 25, 18:29 UTC1h 10m
2026-06-24 N6863T MRI → MRI Jun 24, 22:49 UTCJun 24, 22:55 UTC5m
2026-06-22 N6863T MRI → MRI Jun 22, 22:15 UTCJun 22, 23:24 UTC1h 10m
2026-06-20 N6863T - Jun 20, 20:29 UTCJun 20, 20:45 UTC15m
2026-06-20 N6863T MRI → MRI Jun 20, 17:49 UTCJun 20, 19:44 UTC1h 55m
2026-06-20 N6863T - Jun 20, 00:44 UTCJun 20, 02:14 UTC1h 30m
2026-06-19 N6863T - Jun 19, 19:09 UTCJun 19, 19:49 UTC40m
2026-06-19 N6863T - Jun 19, 18:20 UTCJun 19, 19:04 UTC45m
2026-06-19 N6863T - Jun 19, 17:24 UTCJun 19, 17:44 UTC20m
2026-06-19 N6863T - Jun 19, 05:09 UTCJun 19, 05:19 UTC10m
2026-06-19 N6863T - Jun 19, 03:34 UTCJun 19, 03:49 UTC15m
2026-06-18 N6863T - Jun 18, 02:35 UTCJun 18, 03:25 UTC50m
2026-06-17 N6863T MRI → TKA Jun 17, 22:35 UTCJun 17, 23:20 UTC45m
2026-06-16 N6863T HOM → MRI Jun 16, 22:45 UTCJun 16, 23:55 UTC1h 10m
2026-06-16 N6863T - Jun 16, 19:45 UTCJun 16, 20:50 UTC1h 6m
2026-06-15 N6863T - Jun 15, 23:39 UTCJun 16, 00:29 UTC50m
2026-06-15 N6863T - Jun 15, 20:04 UTCJun 15, 20:59 UTC55m
2026-06-13 N6863T MRI → MRI Jun 13, 16:15 UTCJun 13, 18:00 UTC1h 45m
2026-06-13 N6863T - Jun 13, 02:05 UTCJun 13, 02:40 UTC35m
2026-06-12 N6863T - Jun 12, 23:15 UTCJun 13, 01:10 UTC1h 55m
2026-06-12 N6863T - Jun 12, 02:00 UTCJun 12, 02:35 UTC35m

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 N6863T page for operator, model, and routing details .

Mode-S A91C54 frequently asked

What is Mode-S code A91C54?
A91C54 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6863T.
Where is Mode-S A91C54 registered?
Mode-S code A91C54 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 A91C54 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A91C54, octal 52216124, decimal 11,082,836.
What flights does A91C54 operate?
Mode-S A91C54 has broadcast 1 distinct callsign, including N6863T.