Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A23C3E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N243MG · operated by GEORGIA AVIATION AUTHORITY

Hex
A23C3E
Octal
50436076
Decimal
10,632,254
Country
US
Tail
N243MG
Type
P28A
No current signal · last broadcast Jul 9, 15:25 UTC
Flights observed
160
Distinct callsigns
1
Country
US
Last broadcast
Jul 9, 15:25 UTC

Last known position

Most recent position reported by Mode-S A23C3E.

Country allocation

The ICAO 24-bit address A23C3E 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
NIT243 - 160 2026-07-09

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-09 NIT243 - Jul 9, 14:55 UTCJul 9, 15:25 UTC30m
2026-07-08 NIT243 - Jul 8, 18:15 UTCJul 8, 19:00 UTC45m
2026-07-08 NIT243 - Jul 8, 12:45 UTCJul 8, 13:25 UTC40m
2026-07-07 NIT243 - Jul 7, 12:20 UTCJul 7, 13:15 UTC55m
2026-07-07 NIT243 - Jul 7, 01:25 UTCJul 7, 01:50 UTC25m
2026-07-06 NIT243 - Jul 6, 17:55 UTCJul 6, 18:05 UTC10m
2026-07-06 NIT243 - Jul 6, 16:15 UTCJul 6, 16:25 UTC10m
2026-07-05 NIT243 - Jul 5, 16:00 UTCJul 5, 16:25 UTC25m
2026-07-03 NIT243 - Jul 3, 17:35 UTCJul 3, 20:20 UTC2h 45m
2026-07-03 NIT243 - Jul 3, 14:00 UTCJul 3, 16:40 UTC2h 40m
2026-07-03 NIT243 - Jul 3, 11:30 UTCJul 3, 12:45 UTC1h 15m
2026-07-03 NIT243 - Jul 3, 10:30 UTCJul 3, 10:45 UTC15m
2026-07-02 NIT243 - Jul 2, 18:50 UTCJul 3, 00:10 UTC5h 20m
2026-07-02 NIT243 - Jul 2, 15:35 UTCJul 2, 18:20 UTC2h 45m
2026-07-02 NIT243 - Jul 2, 12:25 UTCJul 2, 14:40 UTC2h 15m
2026-07-02 NIT243 - Jul 2, 11:30 UTCJul 2, 11:40 UTC10m
2026-07-02 NIT243 - Jul 2, 01:45 UTCJul 2, 03:15 UTC1h 30m
2026-07-01 NIT243 - Jul 1, 22:20 UTCJul 2, 01:10 UTC2h 50m
2026-07-01 NIT243 - Jul 1, 20:35 UTCJul 1, 21:50 UTC1h 15m
2026-07-01 NIT243 - Jul 1, 18:25 UTCJul 1, 19:45 UTC1h 20m
2026-06-30 NIT243 - Jun 30, 16:15 UTCJun 30, 16:50 UTC35m
2026-06-30 NIT243 - Jun 30, 14:15 UTCJun 30, 14:50 UTC35m
2026-06-29 NIT243 - Jun 29, 22:39 UTCJun 30, 00:00 UTC1h 20m
2026-06-29 NIT243 - Jun 29, 19:05 UTCJun 29, 19:49 UTC45m
2026-06-29 NIT243 - Jun 29, 16:59 UTCJun 29, 17:10 UTC10m
2026-06-29 NIT243 - Jun 29, 14:39 UTCJun 29, 14:54 UTC15m
2026-06-29 NIT243 - Jun 29, 13:24 UTCJun 29, 13:39 UTC15m
2026-06-28 NIT243 - Jun 28, 17:30 UTCJun 28, 17:50 UTC20m
2026-06-28 NIT243 - Jun 28, 15:14 UTCJun 28, 16:05 UTC50m
2026-06-28 NIT243 - Jun 28, 14:04 UTCJun 28, 14:25 UTC20m
2026-06-28 NIT243 - Jun 28, 12:15 UTCJun 28, 13:10 UTC55m
2026-06-28 NIT243 - Jun 28, 11:25 UTCJun 28, 11:35 UTC10m
2026-06-25 NIT243 - Jun 25, 22:04 UTCJun 25, 23:14 UTC1h 10m
2026-06-25 NIT243 - Jun 25, 16:29 UTCJun 25, 17:44 UTC1h 15m
2026-06-25 NIT243 - Jun 25, 01:24 UTCJun 25, 03:59 UTC2h 35m
2026-06-24 NIT243 - Jun 24, 12:04 UTCJun 24, 12:34 UTC30m
2026-06-23 NIT243 - Jun 23, 16:24 UTCJun 23, 16:50 UTC25m
2026-06-22 NIT243 - Jun 22, 16:20 UTCJun 22, 16:29 UTC10m
2026-06-22 NIT243 - Jun 22, 12:25 UTCJun 22, 12:40 UTC15m
2026-06-21 NIT243 - Jun 21, 15:49 UTCJun 21, 16:19 UTC30m
2026-06-15 NIT243 - Jun 15, 18:15 UTCJun 15, 18:25 UTC10m
2026-06-15 NIT243 - Jun 15, 17:25 UTCJun 15, 17:45 UTC20m
2026-06-15 NIT243 - Jun 15, 11:34 UTCJun 15, 11:54 UTC20m
2026-06-09 NIT243 - Jun 9, 13:55 UTCJun 9, 15:05 UTC1h 10m
2026-06-08 NIT243 - Jun 8, 14:15 UTCJun 8, 14:50 UTC35m
2026-06-08 NIT243 - Jun 8, 12:20 UTCJun 8, 12:45 UTC25m
2026-06-07 NIT243 - Jun 7, 18:20 UTCJun 7, 18:55 UTC35m
2026-06-07 NIT243 - Jun 7, 15:40 UTCJun 7, 16:20 UTC40m
2026-06-07 NIT243 - Jun 7, 12:20 UTCJun 7, 12:35 UTC15m
2026-06-06 NIT243 - Jun 6, 18:35 UTCJun 6, 19:04 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 N243MG page for operator, model, and routing details .

Mode-S A23C3E frequently asked

What is Mode-S code A23C3E?
A23C3E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N243MG.
Where is Mode-S A23C3E registered?
Mode-S code A23C3E 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 A23C3E broadcasting right now?
No active broadcast right now. Last signal was Jul 9, 15:25 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A23C3E, octal 50436076, decimal 10,632,254.
What flights does A23C3E operate?
Mode-S A23C3E has broadcast 1 distinct callsign, including NIT243.