Apparatus

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sensors Mode-S transponder

A38D95

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N328RX · AIRBUS HELICOPTERS EC-135/635 · operated by REACH AIR MEDICAL SERVICES LLC

Hex
A38D95
Octal
50706625
Decimal
10,718,613
Country
US
Tail
N328RX
Type
EC35
No current signal · last broadcast 6h ago
Flights observed
182
Distinct callsigns
4
Country
US
Last broadcast
6h ago

Last known position

Most recent position reported by Mode-S A38D95.

Country allocation

The ICAO 24-bit address A38D95 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 4 distinct

Callsign Airline Flights Last seen
REH35 - 141 2026-07-14
REH18 - 20 2026-07-10
RCH35 - 15 2026-07-13
REH91 - 6 2026-06-19

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 REH35 - Jul 14, 01:35 UTCJul 14, 01:50 UTC15m
2026-07-13 REH35 - Jul 13, 20:15 UTCJul 13, 20:30 UTC15m
2026-07-13 REH35 - Jul 13, 19:05 UTCJul 13, 19:20 UTC15m
2026-07-13 RCH35 - Jul 13, 12:35 UTCJul 13, 13:15 UTC40m
2026-07-13 RCH35 - Jul 13, 10:05 UTCJul 13, 10:45 UTC40m
2026-07-12 RCH35 - Jul 12, 12:55 UTCJul 12, 13:15 UTC20m
2026-07-12 RCH35 - Jul 12, 11:10 UTCJul 12, 11:20 UTC10m
2026-07-12 RCH35 - Jul 12, 00:30 UTCJul 12, 00:55 UTC25m
2026-07-11 RCH35 - Jul 11, 21:45 UTCJul 11, 22:20 UTC35m
2026-07-11 RCH35 - Jul 11, 19:45 UTCJul 11, 20:10 UTC25m
2026-07-11 RCH35 NOT → UKI Jul 11, 11:50 UTCJul 11, 12:30 UTC40m
2026-07-11 RCH35 - Jul 11, 10:25 UTCJul 11, 10:55 UTC30m
2026-07-11 RCH35 - Jul 11, 07:05 UTCJul 11, 08:05 UTC1h 0m
2026-07-11 RCH35 - Jul 11, 03:45 UTCJul 11, 04:30 UTC45m
2026-07-11 RCH35 - Jul 11, 02:10 UTCJul 11, 03:15 UTC1h 5m
2026-07-10 RCH35 - Jul 10, 23:15 UTCJul 10, 23:25 UTC10m
2026-07-10 RCH35 - Jul 10, 08:00 UTCJul 10, 08:40 UTC40m
2026-07-10 RCH35 - Jul 10, 07:00 UTCJul 10, 07:15 UTC15m
2026-07-10 REH18 - Jul 10, 00:20 UTCJul 10, 01:05 UTC45m
2026-07-09 REH18 - Jul 9, 21:05 UTCJul 9, 21:55 UTC50m
2026-07-09 REH18 - Jul 9, 12:20 UTCJul 9, 12:40 UTC20m
2026-07-09 REH18 - Jul 9, 09:55 UTCJul 9, 10:35 UTC40m
2026-07-08 REH18 - Jul 8, 22:00 UTCJul 8, 22:20 UTC20m
2026-07-08 REH18 - Jul 8, 20:50 UTCJul 8, 21:05 UTC15m
2026-07-08 REH18 - Jul 8, 19:00 UTCJul 8, 19:40 UTC40m
2026-07-08 REH18 - Jul 8, 09:15 UTCJul 8, 10:00 UTC45m
2026-07-08 REH18 - Jul 8, 06:45 UTCJul 8, 07:20 UTC35m
2026-07-07 REH18 - Jul 7, 23:20 UTCJul 7, 23:40 UTC20m
2026-07-07 REH18 - Jul 7, 22:05 UTCJul 7, 22:15 UTC10m
2026-07-07 REH35 - Jul 7, 20:55 UTCJul 7, 21:15 UTC20m
2026-07-07 REH35 - Jul 7, 10:00 UTCJul 7, 10:15 UTC15m
2026-07-07 REH35 - Jul 7, 08:20 UTCJul 7, 08:50 UTC30m
2026-07-07 REH35 - Jul 7, 07:25 UTCJul 7, 07:40 UTC15m
2026-07-07 REH35 - Jul 7, 05:10 UTCJul 7, 05:40 UTC30m
2026-07-07 REH35 - Jul 7, 03:00 UTCJul 7, 03:50 UTC50m
2026-07-07 REH35 - Jul 7, 00:00 UTCJul 7, 00:45 UTC45m
2026-07-06 REH35 - Jul 6, 12:55 UTCJul 6, 13:45 UTC50m
2026-07-06 REH35 - Jul 6, 09:40 UTCJul 6, 10:35 UTC55m
2026-07-06 REH18 - Jul 6, 01:55 UTCJul 6, 02:15 UTC20m
2026-07-05 REH35 - Jul 5, 05:10 UTCJul 5, 06:50 UTC1h 40m
2026-07-04 REH35 - Jul 4, 14:40 UTCJul 4, 15:25 UTC45m
2026-07-04 REH18 - Jul 4, 12:30 UTCJul 4, 13:20 UTC50m
2026-07-04 REH18 - Jul 4, 01:15 UTCJul 4, 01:50 UTC35m
2026-07-04 REH18 - Jul 4, 00:00 UTCJul 4, 00:40 UTC40m
2026-07-03 REH18 - Jul 3, 19:30 UTCJul 3, 19:50 UTC20m
2026-07-03 REH18 - Jul 3, 18:35 UTCJul 3, 18:50 UTC15m
2026-07-03 REH18 - Jul 3, 11:05 UTCJul 3, 11:55 UTC50m
2026-07-03 REH18 - Jul 3, 08:00 UTCJul 3, 08:55 UTC55m
2026-07-03 REH35 - Jul 3, 04:55 UTCJul 3, 05:20 UTC25m
2026-07-02 REH35 - Jul 2, 01:20 UTCJul 2, 01:30 UTC10m

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 N328RX page for operator, model, and routing details .

Mode-S A38D95 frequently asked

What is Mode-S code A38D95?
A38D95 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N328RX.
Where is Mode-S A38D95 registered?
Mode-S code A38D95 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 A38D95 broadcasting right now?
No active broadcast right now. Last signal was 6h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A38D95, octal 50706625, decimal 10,718,613.
What flights does A38D95 operate?
Mode-S A38D95 has broadcast 4 distinct callsigns, including REH35, REH18, RCH35, REH91.