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sensors Mode-S transponder

A56512

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N447ER · operated by SILVER EXPRESS DBA, FLYING ACADEMY

Hex
A56512
Octal
51262422
Decimal
10,839,314
Country
US
Tail
N447ER
Type
C172
No current signal · last broadcast 8h ago
Flights observed
200
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A56512.

Country allocation

The ICAO 24-bit address A56512 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
N447ER - 200 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N447ER TMB → TMB Jul 24, 23:10 UTCJul 24, 23:55 UTC45m
2026-07-24 N447ER - Jul 24, 16:35 UTCJul 24, 17:25 UTC50m
2026-07-24 N447ER TMB → TMB Jul 24, 15:15 UTCJul 24, 16:00 UTC45m
2026-07-24 N447ER TMB → TMB Jul 24, 13:20 UTCJul 24, 14:15 UTC55m
2026-07-23 N447ER TMB → TMB Jul 23, 19:10 UTCJul 23, 20:00 UTC50m
2026-07-23 N447ER TMB → TMB Jul 23, 17:15 UTCJul 23, 17:20 UTC5m
2026-07-23 N447ER - Jul 23, 16:35 UTCJul 23, 17:05 UTC30m
2026-07-23 N447ER TMB → TMB Jul 23, 13:15 UTCJul 23, 15:55 UTC2h 40m
2026-07-22 N447ER TMB → TMB Jul 22, 22:40 UTCJul 22, 23:20 UTC40m
2026-07-22 N447ER TMB → TMB Jul 22, 19:25 UTCJul 22, 20:05 UTC40m
2026-07-22 N447ER TMB → TMB Jul 22, 15:00 UTCJul 22, 15:55 UTC55m
2026-07-22 N447ER TMB → TMB Jul 22, 02:05 UTCJul 22, 03:00 UTC55m
2026-07-22 N447ER TMB → TMB Jul 22, 01:50 UTCJul 22, 02:00 UTC10m
2026-07-21 N447ER TMB → TMB Jul 21, 14:25 UTCJul 21, 15:05 UTC40m
2026-07-20 N447ER TMB → TMB Jul 20, 18:20 UTCJul 20, 19:05 UTC45m
2026-07-18 N447ER TMB → TMB Jul 18, 18:40 UTCJul 18, 20:00 UTC1h 20m
2026-07-17 N447ER - Jul 17, 14:30 UTCJul 17, 15:10 UTC40m
2026-07-17 N447ER - Jul 17, 13:15 UTCJul 17, 13:50 UTC35m
2026-07-16 N447ER TMB → TMB Jul 16, 18:40 UTCJul 16, 19:35 UTC55m
2026-07-16 N447ER TMB → TMB Jul 16, 16:49 UTCJul 16, 17:35 UTC45m
2026-07-15 N447ER TMB → TMB Jul 15, 14:45 UTCJul 15, 15:40 UTC55m
2026-07-13 N447ER TMB → TMB Jul 13, 18:25 UTCJul 13, 19:00 UTC35m
2026-07-10 N447ER - Jul 10, 14:50 UTCJul 10, 16:10 UTC1h 20m
2026-07-09 N447ER TMB → TMB Jul 9, 23:10 UTCJul 9, 23:55 UTC45m
2026-07-09 N447ER TMB → TMB Jul 9, 12:30 UTCJul 9, 13:25 UTC55m
2026-07-08 N447ER - Jul 8, 22:45 UTCJul 9, 02:20 UTC3h 35m
2026-07-08 N447ER - Jul 8, 12:25 UTCJul 8, 13:25 UTC1h 0m
2026-07-05 N447ER TMB → TMB Jul 5, 15:00 UTCJul 5, 15:20 UTC20m
2026-07-05 N447ER TMB → TMB Jul 5, 13:00 UTCJul 5, 13:20 UTC20m
2026-07-03 N447ER - Jul 3, 14:10 UTCJul 3, 15:25 UTC1h 15m
2026-07-03 N447ER - Jul 3, 12:55 UTCJul 3, 13:30 UTC35m
2026-07-02 N447ER TMB → TMB Jul 2, 14:35 UTCJul 2, 16:05 UTC1h 30m
2026-07-02 N447ER TMB → TMB Jul 2, 12:25 UTCJul 2, 13:45 UTC1h 20m
2026-07-01 N447ER TMB → TMB Jul 1, 16:55 UTCJul 1, 17:20 UTC25m
2026-07-01 N447ER TMB → TMB Jul 1, 12:30 UTCJul 1, 13:50 UTC1h 20m
2026-06-29 N447ER TMB → TMB Jun 29, 19:35 UTCJun 29, 20:54 UTC1h 20m
2026-06-29 N447ER TMB → TMB Jun 29, 16:35 UTCJun 29, 17:05 UTC30m
2026-06-29 N447ER TMB → TMB Jun 29, 16:00 UTCJun 29, 16:25 UTC25m
2026-06-29 N447ER - Jun 29, 14:14 UTCJun 29, 14:50 UTC35m
2026-06-29 N447ER - Jun 29, 13:00 UTCJun 29, 13:39 UTC40m
2026-06-27 N447ER TMB → TMB Jun 27, 13:55 UTCJun 27, 14:29 UTC35m
2026-06-26 N447ER TMB → TMB Jun 26, 12:39 UTCJun 26, 13:24 UTC45m
2026-06-24 N447ER TMB → TMB Jun 24, 15:09 UTCJun 24, 16:05 UTC55m
2026-06-23 N447ER - Jun 23, 20:54 UTCJun 23, 21:14 UTC20m
2026-06-19 N447ER TMB → TMB Jun 19, 19:25 UTCJun 19, 19:54 UTC30m
2026-06-19 N447ER TMB → TMB Jun 19, 16:59 UTCJun 19, 18:05 UTC1h 5m
2026-06-19 N447ER TMB → TMB Jun 19, 15:14 UTCJun 19, 15:59 UTC45m
2026-06-18 N447ER TMB → TMB Jun 18, 19:45 UTCJun 18, 20:45 UTC1h 0m
2026-06-17 N447ER TMB → TMB Jun 17, 15:00 UTCJun 17, 16:20 UTC1h 20m
2026-06-16 N447ER TMB → TMB Jun 16, 21:00 UTCJun 16, 21:25 UTC25m

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 N447ER page for operator, model, and routing details .

Mode-S A56512 frequently asked

What is Mode-S code A56512?
A56512 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N447ER.
Where is Mode-S A56512 registered?
Mode-S code A56512 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 A56512 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A56512, octal 51262422, decimal 10,839,314.
What flights does A56512 operate?
Mode-S A56512 has broadcast 1 distinct callsign, including N447ER.