sensors Mode-S transponder

AA14D2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N749JS · CESSNA 525B Citation CJ3 · operated by FLYEXCLUSIVE JET SHARE LLC

Hex
AA14D2
Octal
52412322
Decimal
11,146,450
Country
US
Tail
N749JS
Type
C25B
Broadcasting now · callsign JRE749 · 45,000 ft
Flights observed
6
Distinct callsigns
1
Country
US
Last broadcast
23h ago

Current position

AA14D2 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address AA14D2 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
JRE749 - 6 2026-04-13

Recent flights last 6

DateFlightRouteTakeoffLandingDuration
2026-04-13 JRE749 - Apr 13, 22:00 UTCApr 13, 23:45 UTC1h 45m
2026-04-13 JRE749 - Apr 13, 19:50 UTCApr 13, 19:55 UTC5m
2026-04-13 JRE749 - Apr 13, 18:05 UTCApr 13, 19:55 UTC1h 50m
2026-04-13 JRE749 - Apr 13, 16:15 UTCApr 13, 17:15 UTC1h 0m
2026-04-12 JRE749 - Apr 12, 19:10 UTCApr 12, 20:15 UTC1h 5m
2026-04-12 JRE749 - Apr 12, 17:15 UTCApr 12, 18:10 UTC55m

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 N749JS page for operator, model, and routing details .

Mode-S AA14D2 frequently asked

What is Mode-S code AA14D2?
AA14D2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N749JS.
Where is Mode-S AA14D2 registered?
Mode-S code AA14D2 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 AA14D2 broadcasting right now?
Yes. Mode-S AA14D2 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex AA14D2, octal 52412322, decimal 11,146,450.
What flights does AA14D2 operate?
Mode-S AA14D2 has broadcast 1 distinct callsign, including JRE749.