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 13h ago
Flights observed
52
Distinct callsigns
1
Country
US
Last broadcast
13h 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 - 52 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N6863T - May 29, 18:10 UTCMay 29, 20:10 UTC2h 0m
2026-05-29 N6863T - May 29, 02:05 UTCMay 29, 03:25 UTC1h 20m
2026-05-28 N6863T MRI → MRI May 28, 17:55 UTCMay 28, 19:35 UTC1h 40m
2026-05-26 N6863T - May 26, 19:25 UTCMay 26, 19:55 UTC30m
2026-05-26 N6863T - May 26, 00:39 UTCMay 26, 01:44 UTC1h 5m
2026-05-25 N6863T - May 25, 22:34 UTCMay 25, 23:49 UTC1h 15m
2026-05-25 N6863T - May 25, 19:40 UTCMay 25, 20:24 UTC45m
2026-05-25 N6863T - May 25, 17:10 UTCMay 25, 17:40 UTC30m
2026-05-25 N6863T - May 25, 16:10 UTCMay 25, 16:30 UTC20m
2026-05-23 N6863T - May 23, 18:45 UTCMay 23, 20:30 UTC1h 45m
2026-05-23 N6863T - May 23, 16:15 UTCMay 23, 17:40 UTC1h 25m
2026-05-22 N6863T MRI → MRI May 22, 21:10 UTCMay 22, 22:55 UTC1h 45m
2026-05-16 N6863T MRI → MRI May 16, 20:40 UTCMay 16, 21:55 UTC1h 15m
2026-05-16 N6863T - May 16, 16:15 UTCMay 16, 17:30 UTC1h 15m
2026-05-16 N6863T - May 16, 07:05 UTCMay 16, 07:45 UTC40m
2026-05-16 N6863T - May 16, 02:55 UTCMay 16, 03:45 UTC50m
2026-05-15 N6863T MRI → MRI May 15, 01:40 UTCMay 15, 03:05 UTC1h 25m
2026-05-14 N6863T - May 14, 17:30 UTCMay 14, 17:50 UTC20m
2026-05-14 N6863T - May 14, 16:35 UTCMay 14, 16:55 UTC20m
2026-05-14 N6863T - May 14, 02:45 UTCMay 14, 03:45 UTC1h 0m
2026-05-14 N6863T MRI → TKA May 14, 02:00 UTCMay 14, 02:40 UTC40m
2026-05-13 N6863T - May 13, 23:15 UTCMay 14, 00:00 UTC45m
2026-05-13 N6863T MRI → TKA May 13, 22:25 UTCMay 13, 23:10 UTC45m
2026-05-09 N6863T MRI → MRI May 9, 02:45 UTCMay 9, 04:00 UTC1h 15m
2026-05-08 N6863T - May 8, 01:59 UTCMay 8, 03:19 UTC1h 20m
2026-05-07 N6863T MRI → FRN May 7, 23:29 UTCMay 8, 00:05 UTC35m
2026-05-02 N6863T - May 2, 01:05 UTCMay 2, 01:10 UTC5m
2026-05-01 N6863T - May 1, 05:15 UTCMay 1, 05:20 UTC5m
2026-04-30 N6863T - Apr 30, 22:10 UTCApr 30, 22:30 UTC20m
2026-04-30 N6863T - Apr 30, 21:50 UTCApr 30, 22:05 UTC15m
2026-04-30 N6863T - Apr 30, 21:15 UTCApr 30, 21:35 UTC20m
2026-04-30 N6863T - Apr 30, 18:10 UTCApr 30, 18:30 UTC20m
2026-04-30 N6863T - Apr 30, 16:50 UTCApr 30, 17:55 UTC1h 5m
2026-04-30 N6863T WWA → MRI Apr 30, 01:45 UTCApr 30, 02:15 UTC30m
2026-04-30 N6863T MRI → WWA Apr 30, 01:05 UTCApr 30, 01:40 UTC35m
2026-04-29 N6863T MRI → MRI Apr 29, 20:05 UTCApr 29, 21:05 UTC1h 0m
2026-04-29 N6863T MRI → MRI Apr 29, 18:40 UTCApr 29, 18:50 UTC10m
2026-04-29 N6863T - Apr 29, 17:35 UTCApr 29, 18:35 UTC1h 0m
2026-04-25 N6863T - Apr 25, 20:50 UTCApr 25, 21:30 UTC40m
2026-04-25 N6863T HOM → ENA Apr 25, 20:00 UTCApr 25, 20:45 UTC45m
2026-04-25 N6863T MRI → HOM Apr 25, 18:40 UTCApr 25, 19:55 UTC1h 15m
2026-04-24 N6863T - Apr 24, 21:05 UTCApr 24, 21:20 UTC15m
2026-04-24 N6863T - Apr 24, 20:50 UTCApr 24, 21:00 UTC10m
2026-04-24 N6863T MRI → MRI Apr 24, 20:25 UTCApr 24, 20:30 UTC5m
2026-04-21 N6863T - Apr 21, 18:05 UTCApr 21, 19:25 UTC1h 20m
2026-04-17 N6863T - Apr 17, 18:45 UTCApr 17, 19:00 UTC15m
2026-04-15 N6863T - Apr 15, 00:55 UTCApr 15, 01:50 UTC55m
2026-04-15 N6863T - Apr 15, 00:30 UTCApr 15, 00:50 UTC20m
2026-04-14 N6863T - Apr 14, 23:40 UTCApr 15, 00:25 UTC45m
2026-04-13 N6863T - Apr 13, 23:35 UTCApr 13, 23:45 UTC10m

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 13h 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.