sensors Mode-S transponder

A9E307

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N736TJ · operated by TJ AVIATION GROUP LLC

Hex
A9E307
Octal
52361407
Decimal
11,133,703
Country
US
Tail
N736TJ
No current signal · last broadcast 1d ago
Flights observed
13
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A9E307.

Country allocation

The ICAO 24-bit address A9E307 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
N736TJ - 13 2026-04-17

Recent flights last 13

DateFlightRouteTakeoffLandingDuration
2026-04-17 N736TJ - Apr 17, 19:25 UTCApr 17, 20:20 UTC55m
2026-04-17 N736TJ - Apr 17, 17:40 UTCApr 17, 19:20 UTC1h 40m
2026-04-17 N736TJ - Apr 17, 16:40 UTCApr 17, 17:10 UTC30m
2026-04-17 N736TJ - Apr 17, 15:20 UTCApr 17, 15:40 UTC20m
2026-04-17 N736TJ - Apr 17, 15:00 UTCApr 17, 15:15 UTC15m
2026-04-16 N736TJ - Apr 16, 23:20 UTCApr 16, 23:35 UTC15m
2026-04-16 N736TJ - Apr 16, 21:14 UTCApr 16, 23:10 UTC1h 55m
2026-04-16 N736TJ - Apr 16, 13:15 UTCApr 16, 14:05 UTC50m
2026-04-16 N736TJ - Apr 16, 11:20 UTCApr 16, 13:05 UTC1h 45m
2026-04-15 N736TJ - Apr 15, 23:10 UTCApr 15, 23:45 UTC35m
2026-04-15 N736TJ - Apr 15, 21:25 UTCApr 15, 21:45 UTC20m
2026-04-15 N736TJ - Apr 15, 19:05 UTCApr 15, 20:40 UTC1h 35m
2026-04-15 N736TJ - Apr 15, 18:15 UTCApr 15, 19:00 UTC45m

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 N736TJ page for operator, model, and routing details .

Mode-S A9E307 frequently asked

What is Mode-S code A9E307?
A9E307 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N736TJ.
Where is Mode-S A9E307 registered?
Mode-S code A9E307 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 A9E307 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 A9E307, octal 52361407, decimal 11,133,703.
What flights does A9E307 operate?
Mode-S A9E307 has broadcast 1 distinct callsign, including N736TJ.