sensors Mode-S transponder

A9FA9E

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N742GR · operated by WILMINGTON TRUST CO

Hex
A9FA9E
Octal
52375236
Decimal
11,139,742
Country
US
Tail
N742GR
Type
E170
No current signal · last broadcast 1d ago
Flights observed
9
Distinct callsigns
7
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A9FA9E.

Country allocation

The ICAO 24-bit address A9FA9E 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 7 distinct

Callsign Airline Flights Last seen
ENY3618 - 2 2026-04-13
ENY3399 - 2 2026-04-13
ENY4331 Envoy Air 1 2026-04-14
ENY3816 - 1 2026-04-12
ENY3752 - 1 2026-04-12
ENY3548 - 1 2026-04-13
ENY3547 - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 ENY4331 MHH → CLT Apr 14, 05:18 UTCApr 14, 05:55 UTC37m
2026-04-13 ENY3618 - Apr 13, 21:40 UTCApr 13, 22:15 UTC35m
2026-04-13 ENY3618 - Apr 13, 19:00 UTCApr 13, 19:30 UTC30m
2026-04-13 ENY3399 - Apr 13, 16:30 UTCApr 13, 17:05 UTC35m
2026-04-13 ENY3399 - Apr 13, 15:07 UTCApr 13, 15:41 UTC34m
2026-04-13 ENY3548 - Apr 13, 12:42 UTCApr 13, 13:54 UTC1h 12m
2026-04-13 ENY3547 - Apr 13, 02:46 UTCApr 13, 04:01 UTC1h 15m
2026-04-12 ENY3752 - Apr 12, 19:25 UTCApr 12, 20:15 UTC50m
2026-04-12 ENY3816 - Apr 12, 17:15 UTCApr 12, 17:35 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 N742GR page for operator, model, and routing details .

Mode-S A9FA9E frequently asked

What is Mode-S code A9FA9E?
A9FA9E is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N742GR.
Where is Mode-S A9FA9E registered?
Mode-S code A9FA9E 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 A9FA9E 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 A9FA9E, octal 52375236, decimal 11,139,742.
What flights does A9FA9E operate?
Mode-S A9FA9E has broadcast 7 distinct callsigns, including ENY3618, ENY3399, ENY4331, ENY3816, ENY3752.