sensors Mode-S transponder

ACF48C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N934AG · AIRBUS A-320neo · operated by WILMINGTON TRUST CO TRUSTEE

Hex
ACF48C
Octal
53172214
Decimal
11,334,796
Country
US
Tail
N934AG
Type
A20N
Broadcasting now · callsign AVA234 · 36,025 ft
Flights observed
1
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Current position

ACF48C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address ACF48C 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
AVA269 - 1 2026-04-12

Recent flights last 1

DateFlightRouteTakeoffLandingDuration
2026-04-12 AVA269 - Apr 12, 19:30 UTCApr 12, 19:55 UTC25m

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 N934AG page for operator, model, and routing details .

Mode-S ACF48C frequently asked

What is Mode-S code ACF48C?
ACF48C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N934AG.
Where is Mode-S ACF48C registered?
Mode-S code ACF48C 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 ACF48C broadcasting right now?
Yes. Mode-S ACF48C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF48C, octal 53172214, decimal 11,334,796.
What flights does ACF48C operate?
Mode-S ACF48C has broadcast 1 distinct callsign, including AVA269.