sensors Mode-S transponder

A301D8

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N293NN · EMBRAER ERJ-170-200 (long wing) · operated by AMERICAN AIRLINES INC

Hex
A301D8
Octal
50600730
Decimal
10,682,840
Country
US
Tail
N293NN
Type
E75L
No current signal · last broadcast 23h ago
Flights observed
12
Distinct callsigns
5
Country
US
Last broadcast
23h ago

Last known position

Most recent position reported by Mode-S A301D8.

Country allocation

The ICAO 24-bit address A301D8 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 5 distinct

Callsign Airline Flights Last seen
ENY3630 - 4 2026-04-13
ENY4043 Envoy Air 3 2026-04-13
ENY4329 - 2 2026-04-13
ENY4101 - 2 2026-04-13
ENY3724 - 1 2026-04-12

Recent flights last 12

DateFlightRouteTakeoffLandingDuration
2026-04-13 ENY4043 LEX → DFW Apr 13, 23:00 UTCApr 13, 23:45 UTC45m
2026-04-13 ENY4043 LEX → DFW Apr 13, 19:50 UTCApr 13, 22:05 UTC2h 15m
2026-04-13 ENY4043 LEX → DFW Apr 13, 19:30 UTCApr 13, 20:10 UTC40m
2026-04-13 ENY4101 - Apr 13, 16:58 UTCApr 13, 17:45 UTC47m
2026-04-13 ENY4101 - Apr 13, 14:56 UTCApr 13, 15:55 UTC59m
2026-04-13 ENY3630 - Apr 13, 12:20 UTCApr 13, 12:55 UTC35m
2026-04-13 ENY3630 - Apr 13, 11:55 UTCApr 13, 12:55 UTC1h 0m
2026-04-13 ENY3630 - Apr 13, 11:09 UTCApr 13, 13:19 UTC2h 10m
2026-04-13 ENY3630 - Apr 13, 11:06 UTCApr 13, 12:50 UTC1h 44m
2026-04-13 ENY4329 - Apr 13, 00:20 UTCApr 13, 01:25 UTC1h 5m
2026-04-12 ENY4329 - Apr 12, 23:55 UTCApr 13, 01:25 UTC1h 30m
2026-04-12 ENY3724 - Apr 12, 17:45 UTCApr 12, 18:40 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 N293NN page for operator, model, and routing details .

Mode-S A301D8 frequently asked

What is Mode-S code A301D8?
A301D8 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N293NN.
Where is Mode-S A301D8 registered?
Mode-S code A301D8 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 A301D8 broadcasting right now?
No active broadcast right now. Last signal was 23h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A301D8, octal 50600730, decimal 10,682,840.
What flights does A301D8 operate?
Mode-S A301D8 has broadcast 5 distinct callsigns, including ENY3630, ENY4043, ENY4329, ENY4101, ENY3724.