Apparatus

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sensors Mode-S transponder

A38DA0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N328SH · AGUSTA AW-139 · operated by ERA HELICOPTERS LLC

Hex
A38DA0
Octal
50706640
Decimal
10,718,624
Country
US
Tail
N328SH
Type
A139
No current signal · last broadcast Jul 24, 14:10 UTC
Flights observed
118
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 14:10 UTC

Last known position

Most recent position reported by Mode-S A38DA0.

Country allocation

The ICAO 24-bit address A38DA0 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
BTZ328 - 118 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 BTZ328 - Jul 24, 14:00 UTCJul 24, 14:10 UTC10m
2026-07-24 BTZ328 - Jul 24, 11:50 UTCJul 24, 13:25 UTC1h 35m
2026-07-23 BTZ328 - Jul 23, 21:50 UTCJul 23, 22:05 UTC15m
2026-07-23 BTZ328 - Jul 23, 17:15 UTCJul 23, 17:25 UTC10m
2026-07-23 BTZ328 - Jul 23, 15:15 UTCJul 23, 15:45 UTC30m
2026-07-23 BTZ328 - Jul 23, 14:10 UTCJul 23, 14:30 UTC20m
2026-07-23 BTZ328 - Jul 23, 12:20 UTCJul 23, 12:45 UTC25m
2026-07-21 BTZ328 - Jul 21, 14:40 UTCJul 21, 15:00 UTC20m
2026-07-20 BTZ328 - Jul 20, 12:50 UTCJul 20, 13:00 UTC10m
2026-07-20 BTZ328 - Jul 20, 11:30 UTCJul 20, 11:40 UTC10m
2026-07-18 BTZ328 - Jul 18, 22:00 UTCJul 18, 22:10 UTC10m
2026-07-18 BTZ328 - Jul 18, 20:05 UTCJul 18, 20:25 UTC20m
2026-07-17 BTZ328 - Jul 17, 11:45 UTCJul 17, 12:10 UTC25m
2026-07-16 BTZ328 - Jul 16, 16:49 UTCJul 16, 17:00 UTC10m
2026-07-16 BTZ328 - Jul 16, 12:49 UTCJul 16, 13:10 UTC20m
2026-07-16 BTZ328 - Jul 16, 11:15 UTCJul 16, 12:00 UTC45m
2026-07-15 BTZ328 - Jul 15, 13:00 UTCJul 15, 13:20 UTC20m
2026-07-15 BTZ328 - Jul 15, 11:10 UTCJul 15, 11:30 UTC20m
2026-07-14 BTZ328 - Jul 14, 14:55 UTCJul 14, 15:20 UTC25m
2026-07-11 BTZ328 - Jul 11, 11:55 UTCJul 11, 12:05 UTC10m
2026-07-10 BTZ328 - Jul 10, 14:55 UTCJul 10, 15:10 UTC15m
2026-07-10 BTZ328 - Jul 10, 11:15 UTCJul 10, 11:35 UTC20m
2026-07-09 BTZ328 - Jul 9, 14:40 UTCJul 9, 15:10 UTC30m
2026-07-09 BTZ328 - Jul 9, 13:40 UTCJul 9, 13:50 UTC10m
2026-07-09 BTZ328 - Jul 9, 11:45 UTCJul 9, 12:05 UTC20m
2026-07-07 BTZ328 - Jul 7, 15:35 UTCJul 7, 15:45 UTC10m
2026-07-07 BTZ328 - Jul 7, 13:15 UTCJul 7, 13:35 UTC20m
2026-07-06 BTZ328 - Jul 6, 12:30 UTCJul 6, 12:50 UTC20m
2026-07-05 BTZ328 - Jul 5, 13:20 UTCJul 5, 13:40 UTC20m
2026-07-03 BTZ328 - Jul 3, 11:30 UTCJul 3, 11:45 UTC15m
2026-07-02 BTZ328 - Jul 2, 14:20 UTCJul 2, 14:40 UTC20m
2026-06-30 BTZ328 - Jun 30, 14:05 UTCJun 30, 14:25 UTC20m
2026-06-29 BTZ328 - Jun 29, 11:29 UTCJun 29, 11:39 UTC10m
2026-06-26 BTZ328 - Jun 26, 11:34 UTCJun 26, 12:00 UTC25m
2026-06-25 BTZ328 - Jun 25, 16:29 UTCJun 25, 16:45 UTC15m
2026-06-25 BTZ328 - Jun 25, 11:54 UTCJun 25, 12:10 UTC15m
2026-06-23 BTZ328 - Jun 23, 15:55 UTCJun 23, 16:09 UTC15m
2026-06-23 BTZ328 - Jun 23, 13:24 UTCJun 23, 13:45 UTC20m
2026-06-23 BTZ328 - Jun 23, 12:15 UTCJun 23, 12:35 UTC20m
2026-06-23 BTZ328 - Jun 23, 11:04 UTCJun 23, 11:24 UTC20m
2026-06-22 BTZ328 - Jun 22, 11:04 UTCJun 22, 11:35 UTC30m
2026-06-19 BTZ328 - Jun 19, 13:54 UTCJun 19, 14:04 UTC10m
2026-06-18 BTZ328 - Jun 18, 15:10 UTCJun 18, 15:25 UTC15m
2026-06-18 BTZ328 - Jun 18, 13:10 UTCJun 18, 13:45 UTC35m
2026-06-18 BTZ328 - Jun 18, 11:35 UTCJun 18, 12:05 UTC30m
2026-06-17 BTZ328 - Jun 17, 11:55 UTCJun 17, 12:30 UTC35m
2026-06-16 BTZ328 - Jun 16, 17:24 UTCJun 16, 17:45 UTC20m
2026-06-16 BTZ328 - Jun 16, 14:25 UTCJun 16, 15:00 UTC35m
2026-06-16 BTZ328 - Jun 16, 13:25 UTCJun 16, 13:40 UTC15m
2026-06-16 BTZ328 - Jun 16, 11:40 UTCJun 16, 12:10 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 N328SH page for operator, model, and routing details .

Mode-S A38DA0 frequently asked

What is Mode-S code A38DA0?
A38DA0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N328SH.
Where is Mode-S A38DA0 registered?
Mode-S code A38DA0 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 A38DA0 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 14:10 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A38DA0, octal 50706640, decimal 10,718,624.
What flights does A38DA0 operate?
Mode-S A38DA0 has broadcast 1 distinct callsign, including BTZ328.