sensors Mode-S transponder

A4E307

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N414AL · AIRBUS A-321neo · operated by WILMINGTON TRUST CO TRUSTEE

Hex
A4E307
Octal
51161407
Decimal
10,806,023
Country
US
Tail
N414AL
Type
A21N
Broadcasting now · callsign AAL2296 · 36,000 ft
Flights observed
7
Distinct callsigns
4
Country
US
Last broadcast
19h ago

Current position

A4E307 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A4E307 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 4 distinct

Callsign Airline Flights Last seen
AAL3046 American Airlines 2 2026-04-14
AAL1170 - 2 2026-04-13
AAL1153 American Airlines 2 2026-04-12
AAL1850 American Airlines 1 2026-04-13

Recent flights last 7

DateFlightRouteTakeoffLandingDuration
2026-04-14 AAL3046 BHM → MIA Apr 14, 07:10 UTCApr 14, 08:40 UTC1h 30m
2026-04-14 AAL3046 BHM → MIA Apr 14, 05:37 UTCApr 14, 08:50 UTC3h 13m
2026-04-13 AAL1850 PHL → MBJ Apr 13, 20:35 UTCApr 13, 23:45 UTC3h 10m
2026-04-13 AAL1170 - Apr 13, 17:39 UTCApr 13, 19:25 UTC1h 46m
2026-04-13 AAL1170 - Apr 13, 17:30 UTCApr 13, 19:08 UTC1h 38m
2026-04-12 AAL1153 PHL → BOS Apr 12, 19:45 UTCApr 12, 20:15 UTC30m
2026-04-12 AAL1153 PHL → BOS Apr 12, 17:15 UTCApr 12, 18:00 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 N414AL page for operator, model, and routing details .

Mode-S A4E307 frequently asked

What is Mode-S code A4E307?
A4E307 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N414AL.
Where is Mode-S A4E307 registered?
Mode-S code A4E307 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 A4E307 broadcasting right now?
Yes. Mode-S A4E307 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A4E307, octal 51161407, decimal 10,806,023.
What flights does A4E307 operate?
Mode-S A4E307 has broadcast 4 distinct callsigns, including AAL3046, AAL1170, AAL1153, AAL1850.