sensors Mode-S transponder

A60D3E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N4896M · CESSNA 172 Skyhawk · operated by SMTM HOLDINGS INC

Hex
A60D3E
Octal
51406476
Decimal
10,882,366
Country
US
Tail
N4896M
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 A60D3E.

Country allocation

The ICAO 24-bit address A60D3E 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
N4896M - 7 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-13 N4896M - Apr 13, 19:50 UTCApr 13, 21:00 UTC1h 10m
2026-04-13 N4896M - Apr 13, 18:45 UTCApr 13, 20:10 UTC1h 25m
2026-04-13 N4896M - Apr 13, 17:30 UTCApr 13, 17:55 UTC25m
2026-04-13 N4896M - Apr 13, 04:20 UTCApr 13, 04:35 UTC15m
2026-04-13 N4896M - Apr 13, 00:20 UTCApr 13, 02:05 UTC1h 45m
2026-04-12 N4896M - Apr 12, 23:55 UTCApr 13, 02:05 UTC2h 10m
2026-04-12 N4896M - Apr 12, 18:00 UTCApr 12, 20:15 UTC2h 15m

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 N4896M page for operator, model, and routing details .

Mode-S A60D3E frequently asked

What is Mode-S code A60D3E?
A60D3E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N4896M.
Where is Mode-S A60D3E registered?
Mode-S code A60D3E 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 A60D3E 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 A60D3E, octal 51406476, decimal 10,882,366.
What flights does A60D3E operate?
Mode-S A60D3E has broadcast 1 distinct callsign, including N4896M.