sensors Mode-S transponder

A1CEEA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N2153V · MOONEY M-20 · operated by GORO SKY AIRCRAFT LLC

Hex
A1CEEA
Octal
50347352
Decimal
10,604,266
Country
US
Tail
N2153V
Type
M20P
No current signal · last broadcast Jul 14, 18:15 UTC
Flights observed
7
Distinct callsigns
1
Country
US
Last broadcast
Jul 14, 18:15 UTC

Last known position

Most recent position reported by Mode-S A1CEEA.

Country allocation

The ICAO 24-bit address A1CEEA 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
N2153V - 7 2026-07-14

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-07-14 N2153V - Jul 14, 16:55 UTCJul 14, 18:15 UTC1h 20m
2026-07-06 N2153V - Jul 6, 16:55 UTCJul 6, 17:40 UTC45m
2026-07-06 N2153V - Jul 6, 15:45 UTCJul 6, 15:55 UTC10m
2026-06-26 N2153V - Jun 26, 19:09 UTCJun 26, 19:30 UTC20m
2026-06-26 N2153V - Jun 26, 18:15 UTCJun 26, 18:39 UTC25m
2026-06-16 N2153V - Jun 16, 17:05 UTCJun 16, 17:35 UTC30m
2026-06-16 N2153V - Jun 16, 12:30 UTCJun 16, 13:00 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 N2153V page for operator, model, and routing details .

Mode-S A1CEEA frequently asked

What is Mode-S code A1CEEA?
A1CEEA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N2153V.
Where is Mode-S A1CEEA registered?
Mode-S code A1CEEA 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 A1CEEA broadcasting right now?
No active broadcast right now. Last signal was Jul 14, 18:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1CEEA, octal 50347352, decimal 10,604,266.
What flights does A1CEEA operate?
Mode-S A1CEEA has broadcast 1 distinct callsign, including N2153V.