sensors Mode-S transponder

ACF62F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N934TA · operated by CANCELLED/NOT ASSIGNED

Hex
ACF62F
Octal
53173057
Decimal
11,335,215
Country
US
Tail
N934TA
No current signal · last broadcast May 21, 12:00 UTC
Flights observed
2
Distinct callsigns
1
Country
US
Last broadcast
May 21, 12:00 UTC

Last known position

Most recent position reported by Mode-S ACF62F.

Country allocation

The ICAO 24-bit address ACF62F 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
N934TA - 2 2026-05-21

Recent flights last 2

DateFlightRouteTakeoffLandingDuration
2026-05-21 N934TA CLW → ISM May 21, 11:30 UTCMay 21, 12:00 UTC30m
2026-05-20 N934TA - May 20, 21:25 UTCMay 20, 21:55 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 N934TA page for operator, model, and routing details .

Mode-S ACF62F frequently asked

What is Mode-S code ACF62F?
ACF62F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N934TA.
Where is Mode-S ACF62F registered?
Mode-S code ACF62F 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 ACF62F broadcasting right now?
No active broadcast right now. Last signal was May 21, 12:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACF62F, octal 53173057, decimal 11,335,215.
What flights does ACF62F operate?
Mode-S ACF62F has broadcast 1 distinct callsign, including N934TA.