Apparatus

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sensors Mode-S transponder

A1A7C5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2056E · operated by FEAUTO AVIATION LLC

Hex
A1A7C5
Octal
50323705
Decimal
10,594,245
Country
US
Tail
N2056E
Type
C172
No current signal · last broadcast Jul 26, 18:05 UTC
Flights observed
259
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 18:05 UTC

Last known position

Most recent position reported by Mode-S A1A7C5.

Country allocation

The ICAO 24-bit address A1A7C5 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
N2056E - 259 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N2056E - Jul 26, 16:50 UTCJul 26, 18:05 UTC1h 15m
2026-07-26 N2056E COI → COI Jul 26, 14:00 UTCJul 26, 15:40 UTC1h 40m
2026-07-25 N2056E - Jul 25, 12:10 UTCJul 25, 13:40 UTC1h 30m
2026-07-24 N2056E COI → COI Jul 24, 22:50 UTCJul 25, 00:15 UTC1h 25m
2026-07-23 N2056E COI → COI Jul 23, 21:55 UTCJul 23, 22:15 UTC20m
2026-07-23 N2056E COI → COI Jul 23, 18:35 UTCJul 23, 20:20 UTC1h 45m
2026-07-23 N2056E - Jul 23, 14:00 UTCJul 23, 14:45 UTC45m
2026-07-23 N2056E - Jul 23, 12:45 UTCJul 23, 13:25 UTC40m
2026-07-22 N2056E COI → COI Jul 22, 15:35 UTCJul 22, 16:25 UTC50m
2026-07-22 N2056E COI → COI Jul 22, 13:10 UTCJul 22, 14:55 UTC1h 45m
2026-07-21 N2056E COI → COI Jul 21, 22:00 UTCJul 21, 23:10 UTC1h 10m
2026-07-21 N2056E COI → COI Jul 21, 00:10 UTCJul 21, 01:20 UTC1h 10m
2026-07-20 N2056E COI → COI Jul 20, 16:50 UTCJul 20, 18:30 UTC1h 40m
2026-07-20 N2056E COI → COI Jul 20, 13:55 UTCJul 20, 15:15 UTC1h 20m
2026-07-19 N2056E COI → COI Jul 19, 16:35 UTCJul 19, 18:25 UTC1h 50m
2026-07-19 N2056E COI → COI Jul 19, 15:10 UTCJul 19, 15:35 UTC25m
2026-07-18 N2056E COI → COI Jul 18, 13:45 UTCJul 18, 15:00 UTC1h 15m
2026-07-17 N2056E COI → COI Jul 17, 19:30 UTCJul 17, 20:10 UTC40m
2026-07-17 N2056E - Jul 17, 17:09 UTCJul 17, 18:29 UTC1h 20m
2026-07-17 N2056E COI → COI Jul 17, 15:00 UTCJul 17, 16:00 UTC1h 0m
2026-07-17 N2056E COI → COI Jul 17, 11:20 UTCJul 17, 12:50 UTC1h 30m
2026-07-16 N2056E COI → COI Jul 16, 18:15 UTCJul 16, 19:20 UTC1h 5m
2026-07-16 N2056E COI → COI Jul 16, 15:30 UTCJul 16, 16:30 UTC1h 0m
2026-07-15 N2056E - Jul 15, 17:20 UTCJul 15, 18:20 UTC1h 0m
2026-07-15 N2056E - Jul 15, 13:30 UTCJul 15, 14:40 UTC1h 10m
2026-07-14 N2056E - Jul 14, 19:00 UTCJul 14, 21:05 UTC2h 5m
2026-07-14 N2056E COI → COI Jul 14, 16:40 UTCJul 14, 17:45 UTC1h 5m
2026-07-14 N2056E - Jul 14, 14:40 UTCJul 14, 15:50 UTC1h 10m
2026-07-13 N2056E - Jul 13, 16:45 UTCJul 13, 18:15 UTC1h 30m
2026-07-13 N2056E - Jul 13, 13:40 UTCJul 13, 14:40 UTC1h 0m
2026-07-13 N2056E - Jul 13, 11:10 UTCJul 13, 12:35 UTC1h 25m
2026-07-12 N2056E - Jul 12, 16:25 UTCJul 12, 17:05 UTC40m
2026-07-12 N2056E - Jul 12, 13:30 UTCJul 12, 14:55 UTC1h 25m
2026-07-11 N2056E COI → COI Jul 11, 19:15 UTCJul 11, 20:30 UTC1h 15m
2026-07-11 N2056E - Jul 11, 15:40 UTCJul 11, 16:45 UTC1h 5m
2026-07-11 N2056E - Jul 11, 12:35 UTCJul 11, 14:20 UTC1h 45m
2026-07-11 N2056E COI → COI Jul 11, 01:40 UTCJul 11, 02:50 UTC1h 10m
2026-07-10 N2056E - Jul 10, 22:50 UTCJul 11, 00:00 UTC1h 10m
2026-07-10 N2056E COI → COI Jul 10, 20:05 UTCJul 10, 21:20 UTC1h 15m
2026-07-10 N2056E COI → COI Jul 10, 17:20 UTCJul 10, 18:30 UTC1h 10m
2026-07-10 N2056E COI → COI Jul 10, 14:50 UTCJul 10, 16:40 UTC1h 50m
2026-07-10 N2056E COI → COI Jul 10, 11:50 UTCJul 10, 13:50 UTC2h 0m
2026-07-09 N2056E - Jul 9, 14:10 UTCJul 9, 15:45 UTC1h 35m
2026-07-08 N2056E COI → COI Jul 8, 20:05 UTCJul 8, 21:20 UTC1h 15m
2026-07-08 N2056E - Jul 8, 14:55 UTCJul 8, 16:40 UTC1h 45m
2026-07-07 N2056E - Jul 7, 14:55 UTCJul 7, 16:00 UTC1h 5m
2026-07-07 N2056E - Jul 7, 12:05 UTCJul 7, 12:25 UTC20m
2026-07-05 N2056E - Jul 5, 17:40 UTCJul 5, 18:50 UTC1h 10m
2026-07-03 N2056E - Jul 3, 23:00 UTCJul 4, 00:30 UTC1h 30m
2026-07-03 N2056E - Jul 3, 20:15 UTCJul 3, 21:35 UTC1h 20m

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 N2056E page for operator, model, and routing details .

Mode-S A1A7C5 frequently asked

What is Mode-S code A1A7C5?
A1A7C5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2056E.
Where is Mode-S A1A7C5 registered?
Mode-S code A1A7C5 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 A1A7C5 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1A7C5, octal 50323705, decimal 10,594,245.
What flights does A1A7C5 operate?
Mode-S A1A7C5 has broadcast 1 distinct callsign, including N2056E.