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sensors Mode-S transponder

A4719E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N386AK · AEROSPATIALE AS-350 Ecureuil · operated by ALPHA AVIATION LLC

Hex
A4719E
Octal
51070636
Decimal
10,776,990
Country
US
Tail
N386AK
Type
AS50
No current signal · last broadcast Jul 26, 17:05 UTC
Flights observed
113
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 17:05 UTC

Last known position

Most recent position reported by Mode-S A4719E.

Country allocation

The ICAO 24-bit address A4719E 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
N386AK - 113 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 N386AK - Jul 26, 14:20 UTCJul 26, 17:05 UTC2h 45m
2026-07-26 N386AK - Jul 26, 01:10 UTCJul 26, 03:20 UTC2h 10m
2026-07-25 N386AK - Jul 25, 23:15 UTCJul 26, 00:00 UTC45m
2026-07-25 N386AK - Jul 25, 17:10 UTCJul 25, 17:20 UTC10m
2026-07-25 N386AK - Jul 25, 16:00 UTCJul 25, 16:25 UTC25m
2026-07-25 N386AK - Jul 25, 14:50 UTCJul 25, 15:10 UTC20m
2026-07-17 N386AK - Jul 17, 16:04 UTCJul 17, 16:24 UTC20m
2026-07-16 N386AK - Jul 16, 19:20 UTCJul 16, 20:39 UTC1h 20m
2026-07-16 N386AK - Jul 16, 17:20 UTCJul 16, 18:25 UTC1h 5m
2026-07-16 N386AK - Jul 16, 02:35 UTCJul 16, 03:30 UTC55m
2026-07-15 N386AK - Jul 15, 18:05 UTCJul 15, 19:30 UTC1h 25m
2026-07-14 N386AK - Jul 14, 03:50 UTCJul 14, 04:00 UTC10m
2026-07-14 N386AK - Jul 14, 02:10 UTCJul 14, 02:35 UTC25m
2026-07-13 N386AK - Jul 13, 19:55 UTCJul 13, 22:35 UTC2h 40m
2026-07-13 N386AK - Jul 13, 18:30 UTCJul 13, 19:10 UTC40m
2026-07-13 N386AK - Jul 13, 02:55 UTCJul 13, 03:05 UTC10m
2026-07-10 N386AK - Jul 10, 20:45 UTCJul 10, 21:15 UTC30m
2026-07-10 N386AK - Jul 10, 19:35 UTCJul 10, 19:55 UTC20m
2026-07-10 N386AK - Jul 10, 18:10 UTCJul 10, 18:45 UTC35m
2026-07-10 N386AK - Jul 10, 17:25 UTCJul 10, 17:35 UTC10m
2026-07-10 N386AK - Jul 10, 16:25 UTCJul 10, 16:50 UTC25m
2026-07-03 N386AK - Jul 3, 01:05 UTCJul 3, 01:15 UTC10m
2026-07-02 N386AK - Jul 2, 22:20 UTCJul 3, 00:30 UTC2h 10m
2026-07-02 N386AK - Jul 2, 00:15 UTCJul 2, 03:20 UTC3h 5m
2026-07-01 N386AK - Jul 1, 23:00 UTCJul 1, 23:10 UTC10m
2026-06-26 N386AK - Jun 26, 00:39 UTCJun 26, 01:10 UTC30m
2026-06-25 N386AK - Jun 25, 22:49 UTCJun 26, 00:05 UTC1h 15m
2026-06-25 N386AK - Jun 25, 21:05 UTCJun 25, 21:44 UTC40m
2026-06-24 N386AK - Jun 24, 16:40 UTCJun 24, 16:54 UTC15m
2026-06-23 N386AK - Jun 23, 21:59 UTCJun 23, 22:19 UTC20m
2026-06-16 N386AK - Jun 16, 03:35 UTCJun 16, 04:39 UTC1h 5m
2026-06-16 N386AK - Jun 16, 02:24 UTCJun 16, 02:50 UTC25m
2026-06-16 N386AK - Jun 16, 01:40 UTCJun 16, 01:50 UTC10m
2026-06-14 N386AK - Jun 14, 21:05 UTCJun 14, 21:30 UTC25m
2026-06-13 N386AK - Jun 13, 23:10 UTCJun 13, 23:20 UTC10m
2026-06-13 N386AK - Jun 13, 05:05 UTCJun 13, 05:30 UTC25m
2026-06-13 N386AK - Jun 13, 02:00 UTCJun 13, 02:20 UTC20m
2026-06-12 N386AK - Jun 12, 03:35 UTCJun 12, 04:10 UTC35m
2026-06-12 N386AK - Jun 12, 01:55 UTCJun 12, 02:40 UTC45m
2026-06-11 N386AK - Jun 11, 02:05 UTCJun 11, 02:35 UTC30m
2026-06-10 N386AK - Jun 10, 23:10 UTCJun 10, 23:50 UTC40m
2026-06-10 N386AK - Jun 10, 17:25 UTCJun 10, 18:35 UTC1h 10m
2026-06-08 N386AK - Jun 8, 21:50 UTCJun 8, 22:25 UTC35m
2026-06-08 N386AK - Jun 8, 20:45 UTCJun 8, 21:15 UTC30m
2026-06-08 N386AK - Jun 8, 19:20 UTCJun 8, 19:55 UTC35m
2026-06-08 N386AK - Jun 8, 18:10 UTCJun 8, 18:45 UTC35m
2026-06-07 N386AK - Jun 7, 19:25 UTCJun 7, 20:00 UTC35m
2026-06-07 N386AK - Jun 7, 18:10 UTCJun 7, 18:45 UTC35m
2026-06-05 N386AK - Jun 5, 03:00 UTCJun 5, 03:10 UTC10m
2026-06-02 N386AK - Jun 2, 03:55 UTCJun 2, 04:35 UTC40m

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 N386AK page for operator, model, and routing details .

Mode-S A4719E frequently asked

What is Mode-S code A4719E?
A4719E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N386AK.
Where is Mode-S A4719E registered?
Mode-S code A4719E 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 A4719E broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 17:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4719E, octal 51070636, decimal 10,776,990.
What flights does A4719E operate?
Mode-S A4719E has broadcast 1 distinct callsign, including N386AK.