sensors Mode-S transponder

A21060

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N232EP · operated by EPIC AVIATION INC

Hex
A21060
Octal
50410140
Decimal
10,621,024
Country
US
Tail
N232EP
Type
C172
No current signal · last broadcast 1d ago
Flights observed
7
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A21060.

Country allocation

The ICAO 24-bit address A21060 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
EPI232 - 7 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-13 EPI232 APA → APA Apr 13, 18:20 UTCApr 13, 18:50 UTC30m
2026-04-13 EPI232 - Apr 13, 16:15 UTCApr 13, 17:30 UTC1h 15m
2026-04-13 EPI232 - Apr 13, 15:50 UTCApr 13, 17:30 UTC1h 40m
2026-04-13 EPI232 - Apr 13, 15:15 UTCApr 13, 16:15 UTC1h 0m
2026-04-13 EPI232 - Apr 13, 13:00 UTCApr 13, 14:05 UTC1h 5m
2026-04-13 EPI232 - Apr 13, 11:40 UTCApr 13, 12:00 UTC20m
2026-04-13 EPI232 - Apr 13, 10:25 UTCApr 13, 10:45 UTC20m

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 N232EP page for operator, model, and routing details .

Mode-S A21060 frequently asked

What is Mode-S code A21060?
A21060 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N232EP.
Where is Mode-S A21060 registered?
Mode-S code A21060 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 A21060 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A21060, octal 50410140, decimal 10,621,024.
What flights does A21060 operate?
Mode-S A21060 has broadcast 1 distinct callsign, including EPI232.