sensors Mode-S transponder

AB9AF5

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N847MH · AIRBUS HELICOPTERS EC-130 · operated by MUSTANG LEASING LLC

Hex
AB9AF5
Octal
52715365
Decimal
11,246,325
Country
US
Tail
N847MH
Type
EC30
No current signal · last broadcast 17h ago
Flights observed
10
Distinct callsigns
1
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S AB9AF5.

Country allocation

The ICAO 24-bit address AB9AF5 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
N847MH - 10 2026-04-14

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-14 N847MH LAS → LAS Apr 14, 05:30 UTCApr 14, 06:15 UTC45m
2026-04-13 N847MH - Apr 13, 22:55 UTCApr 13, 23:20 UTC25m
2026-04-13 N847MH - Apr 13, 21:00 UTCApr 13, 21:25 UTC25m
2026-04-13 N847MH - Apr 13, 20:00 UTCApr 13, 20:10 UTC10m
2026-04-13 N847MH - Apr 13, 18:10 UTCApr 13, 18:30 UTC20m
2026-04-13 N847MH - Apr 13, 17:05 UTCApr 13, 17:25 UTC20m
2026-04-13 N847MH - Apr 13, 15:00 UTCApr 13, 15:30 UTC30m
2026-04-13 N847MH - Apr 13, 01:55 UTCApr 13, 02:25 UTC30m
2026-04-12 N847MH - Apr 12, 23:55 UTCApr 13, 00:20 UTC25m
2026-04-12 N847MH - Apr 12, 20:00 UTCApr 12, 20:15 UTC15m

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 N847MH page for operator, model, and routing details .

Mode-S AB9AF5 frequently asked

What is Mode-S code AB9AF5?
AB9AF5 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N847MH.
Where is Mode-S AB9AF5 registered?
Mode-S code AB9AF5 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 AB9AF5 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AB9AF5, octal 52715365, decimal 11,246,325.
What flights does AB9AF5 operate?
Mode-S AB9AF5 has broadcast 1 distinct callsign, including N847MH.