Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A4EA6D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N416AC · AVRO RJ-85 Avroliner · operated by AERO-FLITE INC

Hex
A4EA6D
Octal
51165155
Decimal
10,807,917
Country
US
Tail
N416AC
Type
RJ85
No current signal · last broadcast 13d ago
Flights observed
149
Distinct callsigns
1
Country
US
Last broadcast
13d ago

Last known position

Most recent position reported by Mode-S A4EA6D.

Country allocation

The ICAO 24-bit address A4EA6D 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
TKR168 - 149 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 TKR168 - Jul 26, 21:00 UTCJul 26, 21:15 UTC15m
2026-07-25 TKR168 - Jul 25, 03:15 UTCJul 25, 04:30 UTC1h 15m
2026-07-25 TKR168 - Jul 25, 00:50 UTCJul 25, 02:30 UTC1h 40m
2026-07-24 TKR168 MCC → MCC Jul 24, 22:50 UTCJul 24, 23:20 UTC30m
2026-07-24 TKR168 - Jul 24, 02:15 UTCJul 24, 02:50 UTC35m
2026-07-24 TKR168 - Jul 24, 00:40 UTCJul 24, 01:05 UTC25m
2026-07-23 TKR168 - Jul 23, 23:25 UTCJul 24, 00:00 UTC35m
2026-07-22 TKR168 MCC → MCC Jul 22, 21:00 UTCJul 22, 21:30 UTC30m
2026-07-22 TKR168 - Jul 22, 18:10 UTCJul 22, 18:40 UTC30m
2026-07-22 TKR168 - Jul 22, 17:00 UTCJul 22, 17:35 UTC35m
2026-07-22 TKR168 - Jul 22, 01:15 UTCJul 22, 01:45 UTC30m
2026-07-22 TKR168 - Jul 22, 00:10 UTCJul 22, 00:40 UTC30m
2026-07-21 TKR168 - Jul 21, 21:45 UTCJul 21, 22:10 UTC25m
2026-07-21 TKR168 MCC → MCC Jul 21, 20:45 UTCJul 21, 21:25 UTC40m
2026-07-21 TKR168 - Jul 21, 03:00 UTCJul 21, 03:35 UTC35m
2026-07-21 TKR168 - Jul 21, 02:15 UTCJul 21, 02:40 UTC25m
2026-07-21 TKR168 MCC → MCC Jul 21, 01:20 UTCJul 21, 01:55 UTC35m
2026-07-20 TKR168 - Jul 20, 23:45 UTCJul 21, 01:00 UTC1h 15m
2026-07-17 TKR168 - Jul 17, 20:29 UTCJul 17, 21:44 UTC1h 15m
2026-07-17 TKR168 - Jul 17, 17:09 UTCJul 17, 19:40 UTC2h 30m
2026-07-17 TKR168 - Jul 17, 02:10 UTCJul 17, 02:39 UTC30m
2026-07-16 TKR168 - Jul 16, 01:40 UTCJul 16, 02:35 UTC55m
2026-07-16 TKR168 - Jul 16, 00:25 UTCJul 16, 01:15 UTC50m
2026-07-13 TKR168 - Jul 13, 16:20 UTCJul 13, 17:30 UTC1h 10m
2026-07-12 TKR168 - Jul 12, 20:50 UTCJul 12, 21:20 UTC30m
2026-07-12 TKR168 - Jul 12, 19:30 UTCJul 12, 20:01 UTC30m
2026-07-11 TKR168 - Jul 11, 00:50 UTCJul 11, 01:15 UTC25m
2026-07-10 TKR168 - Jul 10, 23:55 UTCJul 11, 00:10 UTC15m
2026-07-10 TKR168 - Jul 10, 22:40 UTCJul 10, 23:05 UTC25m
2026-07-10 TKR168 - Jul 10, 21:25 UTCJul 10, 21:55 UTC30m
2026-07-10 TKR168 - Jul 10, 20:30 UTCJul 10, 20:55 UTC25m
2026-07-10 TKR168 - Jul 10, 19:25 UTCJul 10, 19:50 UTC25m
2026-07-09 TKR168 - Jul 9, 22:10 UTCJul 9, 22:40 UTC30m
2026-07-09 TKR168 - Jul 9, 20:40 UTCJul 9, 21:15 UTC35m
2026-07-09 TKR168 - Jul 9, 15:30 UTCJul 9, 17:15 UTC1h 45m
2026-07-08 TKR168 - Jul 8, 20:45 UTCJul 9, 03:30 UTC6h 45m
2026-07-08 TKR168 - Jul 8, 19:50 UTCJul 8, 20:05 UTC15m
2026-07-08 TKR168 - Jul 8, 18:25 UTCJul 8, 18:40 UTC15m
2026-07-08 TKR168 - Jul 8, 01:00 UTCJul 8, 03:10 UTC2h 10m
2026-07-07 TKR168 - Jul 7, 21:00 UTCJul 7, 22:05 UTC1h 5m
2026-07-06 TKR168 - Jul 6, 20:55 UTCJul 6, 21:20 UTC25m
2026-07-06 TKR168 - Jul 6, 20:00 UTCJul 6, 20:25 UTC25m
2026-07-06 TKR168 - Jul 6, 19:00 UTCJul 6, 19:35 UTC35m
2026-07-06 TKR168 - Jul 6, 18:05 UTCJul 6, 18:35 UTC30m
2026-07-06 TKR168 COS → COS Jul 6, 17:10 UTCJul 6, 17:40 UTC30m
2026-07-06 TKR168 COS → COS Jul 6, 02:25 UTCJul 6, 03:00 UTC35m
2026-07-06 TKR168 COS → COS Jul 6, 01:40 UTCJul 6, 02:10 UTC30m
2026-07-05 TKR168 - Jul 5, 23:25 UTCJul 6, 00:00 UTC35m
2026-07-05 TKR168 - Jul 5, 20:25 UTCJul 5, 22:40 UTC2h 15m
2026-07-02 TKR168 - Jul 2, 19:55 UTCJul 2, 20:55 UTC1h 0m

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 N416AC page for operator, model, and routing details .

Mode-S A4EA6D frequently asked

What is Mode-S code A4EA6D?
A4EA6D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N416AC.
Where is Mode-S A4EA6D registered?
Mode-S code A4EA6D 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 A4EA6D broadcasting right now?
No active broadcast right now. Last signal was 13d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4EA6D, octal 51165155, decimal 10,807,917.
What flights does A4EA6D operate?
Mode-S A4EA6D has broadcast 1 distinct callsign, including TKR168.