sensors Mode-S transponder

A3C2BE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N341TR · BOEING 737 MAX 8 · operated by AMERICAN AIRLINES INC

Hex
A3C2BE
Octal
50741276
Decimal
10,732,222
Country
US
Tail
N341TR
Type
B38M
Broadcasting now · callsign AAL2520 · 34,000 ft
Flights observed
9
Distinct callsigns
3
Country
US
Last broadcast
23h ago

Current position

A3C2BE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A3C2BE 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 3 distinct

Callsign Airline Flights Last seen
AAL650 - 6 2026-04-13
AAL2312 - 2 2026-04-13
AAL1376 - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-13 AAL650 - Apr 13, 21:50 UTCApr 14, 02:12 UTC4h 22m
2026-04-13 AAL650 - Apr 13, 16:15 UTCApr 13, 19:45 UTC3h 30m
2026-04-13 AAL650 - Apr 13, 15:52 UTCApr 13, 19:58 UTC4h 6m
2026-04-13 AAL1376 - Apr 13, 13:19 UTCApr 13, 14:22 UTC1h 3m
2026-04-13 AAL2312 - Apr 13, 04:20 UTCApr 13, 04:55 UTC35m
2026-04-13 AAL2312 - Apr 13, 03:55 UTCApr 13, 04:15 UTC20m
2026-04-13 AAL650 - Apr 13, 00:20 UTCApr 13, 02:35 UTC2h 15m
2026-04-12 AAL650 - Apr 12, 23:55 UTCApr 13, 02:35 UTC2h 40m
2026-04-12 AAL650 - Apr 12, 17:15 UTCApr 12, 19:50 UTC2h 35m

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 N341TR page for operator, model, and routing details .

Mode-S A3C2BE frequently asked

What is Mode-S code A3C2BE?
A3C2BE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N341TR.
Where is Mode-S A3C2BE registered?
Mode-S code A3C2BE 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 A3C2BE broadcasting right now?
Yes. Mode-S A3C2BE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A3C2BE, octal 50741276, decimal 10,732,222.
What flights does A3C2BE operate?
Mode-S A3C2BE has broadcast 3 distinct callsigns, including AAL650, AAL2312, AAL1376.