sensors Mode-S transponder

A0C075

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N148AN · AIRBUS A-321 · operated by AMERICAN AIRLINES INC

Hex
A0C075
Octal
50140165
Decimal
10,535,029
Country
US
Tail
N148AN
Type
A321
No current signal · last broadcast 17h ago
Flights observed
15
Distinct callsigns
6
Country
US
Last broadcast
17h ago

Last known position

Most recent position reported by Mode-S A0C075.

Country allocation

The ICAO 24-bit address A0C075 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 6 distinct

Callsign Airline Flights Last seen
AAL717 - 4 2026-04-13
AAL3230 American Airlines 3 2026-04-14
AAL2979 - 3 2026-04-13
AAL2583 - 2 2026-04-13
AAL1355 - 2 2026-04-13
AAL1311 - 1 2026-04-12

Recent flights last 15

DateFlightRouteTakeoffLandingDuration
2026-04-14 AAL3230 DFW → XNA Apr 14, 09:10 UTCApr 14, 10:45 UTC1h 35m
2026-04-14 AAL3230 DFW → XNA Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 AAL3230 DFW → XNA Apr 14, 06:37 UTCApr 14, 10:47 UTC4h 10m
2026-04-13 AAL717 - Apr 13, 21:33 UTCApr 14, 00:57 UTC3h 24m
2026-04-13 AAL717 - Apr 13, 19:45 UTCApr 13, 19:50 UTC5m
2026-04-13 AAL717 - Apr 13, 16:15 UTCApr 13, 19:50 UTC3h 35m
2026-04-13 AAL717 - Apr 13, 16:10 UTCApr 13, 16:15 UTC5m
2026-04-13 AAL2583 BNA → DFW Apr 13, 12:33 UTCApr 13, 14:20 UTC1h 47m
2026-04-13 AAL2583 BNA → DFW Apr 13, 12:22 UTCApr 13, 14:09 UTC1h 47m
2026-04-13 AAL2979 - Apr 13, 04:20 UTCApr 13, 05:00 UTC40m
2026-04-13 AAL2979 - Apr 13, 03:55 UTCApr 13, 05:00 UTC1h 5m
2026-04-13 AAL2979 - Apr 13, 03:40 UTCApr 13, 04:15 UTC35m
2026-04-13 AAL1355 ATL → DFW Apr 13, 00:20 UTCApr 13, 02:20 UTC2h 0m
2026-04-12 AAL1355 - Apr 12, 23:55 UTCApr 13, 02:20 UTC2h 25m
2026-04-12 AAL1311 - Apr 12, 17:07 UTCApr 12, 19:00 UTC1h 53m

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 N148AN page for operator, model, and routing details .

Mode-S A0C075 frequently asked

What is Mode-S code A0C075?
A0C075 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N148AN.
Where is Mode-S A0C075 registered?
Mode-S code A0C075 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 A0C075 broadcasting right now?
No active broadcast right now. Last signal was 17h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0C075, octal 50140165, decimal 10,535,029.
What flights does A0C075 operate?
Mode-S A0C075 has broadcast 6 distinct callsigns, including AAL717, AAL3230, AAL2979, AAL2583, AAL1355.