sensors Mode-S transponder

AC97D0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N910MT · AIRBUS HELICOPTERS EC-135/635 · operated by MED-TRANS CORP

Hex
AC97D0
Octal
53113720
Decimal
11,311,056
Country
US
Tail
N910MT
Type
EC35
No current signal · last broadcast 18h ago
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S AC97D0.

Country allocation

The ICAO 24-bit address AC97D0 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
N910MT - 5 2026-04-14

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-04-14 N910MT - Apr 14, 09:20 UTCApr 14, 09:45 UTC25m
2026-04-13 N910MT - Apr 13, 04:35 UTCApr 13, 05:50 UTC1h 15m
2026-04-13 N910MT - Apr 13, 03:00 UTCApr 13, 03:50 UTC50m
2026-04-12 N910MT - Apr 12, 19:30 UTCApr 12, 20:10 UTC40m
2026-04-12 N910MT - Apr 12, 18:20 UTCApr 12, 18:55 UTC35m

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 N910MT page for operator, model, and routing details .

Mode-S AC97D0 frequently asked

What is Mode-S code AC97D0?
AC97D0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N910MT.
Where is Mode-S AC97D0 registered?
Mode-S code AC97D0 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 AC97D0 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AC97D0, octal 53113720, decimal 11,311,056.
What flights does AC97D0 operate?
Mode-S AC97D0 has broadcast 1 distinct callsign, including N910MT.