Apparatus

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sensors Mode-S transponder

A2D11C

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N28051 · PIPER PA-28-140/150/160/180 · operated by CAE OXFORD AVIATION ACADEMY PHOENIX INC

Hex
A2D11C
Octal
50550434
Decimal
10,670,364
Country
US
Tail
N28051
Type
P28A
Broadcasting now · callsign OXF6881 · 2,425 ft
Flights observed
214
Distinct callsigns
1
Country
US
Last broadcast
5h ago

Current position

A2D11C is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2D11C 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 1 distinct

Callsign Airline Flights Last seen
OXF6881 - 214 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 OXF6881 - Jul 14, 14:20 UTCJul 14, 15:00 UTC40m
2026-07-13 OXF6881 - Jul 13, 18:35 UTCJul 13, 20:25 UTC1h 50m
2026-07-13 OXF6881 - Jul 13, 16:30 UTCJul 13, 17:10 UTC40m
2026-07-11 OXF6881 - Jul 11, 19:05 UTCJul 11, 22:20 UTC3h 15m
2026-07-11 OXF6881 - Jul 11, 15:50 UTCJul 11, 17:50 UTC2h 0m
2026-07-10 OXF6881 - Jul 10, 22:45 UTCJul 10, 23:50 UTC1h 5m
2026-07-10 OXF6881 - Jul 10, 19:30 UTCJul 10, 20:35 UTC1h 5m
2026-07-10 OXF6881 - Jul 10, 17:05 UTCJul 10, 18:55 UTC1h 50m
2026-07-09 OXF6881 - Jul 9, 22:25 UTCJul 9, 23:40 UTC1h 15m
2026-07-09 OXF6881 - Jul 9, 00:00 UTCJul 9, 01:10 UTC1h 10m
2026-07-08 OXF6881 - Jul 8, 22:20 UTCJul 8, 23:25 UTC1h 5m
2026-07-08 OXF6881 - Jul 8, 19:20 UTCJul 8, 21:05 UTC1h 45m
2026-07-08 OXF6881 - Jul 8, 15:45 UTCJul 8, 17:30 UTC1h 45m
2026-07-07 OXF6881 - Jul 7, 21:10 UTCJul 7, 22:05 UTC55m
2026-07-07 OXF6881 - Jul 7, 17:00 UTCJul 7, 18:05 UTC1h 5m
2026-07-07 OXF6881 - Jul 7, 09:50 UTCJul 7, 11:00 UTC1h 10m
2026-07-07 OXF6881 - Jul 7, 08:15 UTCJul 7, 08:50 UTC35m
2026-07-07 OXF6881 - Jul 7, 04:00 UTCJul 7, 04:50 UTC50m
2026-07-07 OXF6881 - Jul 7, 02:05 UTCJul 7, 02:55 UTC50m
2026-07-06 OXF6881 - Jul 6, 17:15 UTCJul 6, 19:00 UTC1h 45m
2026-07-06 OXF6881 - Jul 6, 14:45 UTCJul 6, 16:30 UTC1h 45m
2026-07-05 OXF6881 MSC → MSC Jul 5, 19:50 UTCJul 5, 20:30 UTC40m
2026-07-05 OXF6881 MSC → MSC Jul 5, 14:50 UTCJul 5, 15:00 UTC10m
2026-07-04 OXF6881 - Jul 4, 19:10 UTCJul 4, 20:25 UTC1h 15m
2026-07-04 OXF6881 - Jul 4, 15:20 UTCJul 4, 16:55 UTC1h 35m
2026-07-03 OXF6881 - Jul 3, 17:30 UTCJul 3, 19:20 UTC1h 50m
2026-07-03 OXF6881 - Jul 3, 04:00 UTCJul 3, 05:45 UTC1h 45m
2026-07-02 OXF6881 - Jul 2, 19:35 UTCJul 2, 21:35 UTC2h 0m
2026-07-02 OXF6881 - Jul 2, 15:50 UTCJul 2, 17:45 UTC1h 55m
2026-06-30 OXF6881 - Jun 30, 22:35 UTCJul 1, 00:10 UTC1h 35m
2026-06-30 OXF6881 - Jun 30, 18:15 UTCJun 30, 19:25 UTC1h 10m
2026-06-29 OXF6881 - Jun 29, 22:35 UTCJun 30, 02:20 UTC3h 46m
2026-06-29 OXF6881 - Jun 29, 16:29 UTCJun 29, 18:30 UTC2h 0m
2026-06-29 OXF6881 - Jun 29, 14:50 UTCJun 29, 15:24 UTC35m
2026-06-28 OXF6881 - Jun 28, 16:14 UTCJun 28, 19:09 UTC2h 55m
2026-06-28 OXF6881 MSC → MSC Jun 28, 03:25 UTCJun 28, 04:05 UTC40m
2026-06-27 OXF6881 - Jun 27, 18:45 UTCJun 27, 19:15 UTC30m
2026-06-27 OXF6881 - Jun 27, 18:29 UTCJun 27, 18:39 UTC10m
2026-06-26 OXF6881 - Jun 26, 22:34 UTCJun 26, 23:34 UTC1h 0m
2026-06-26 OXF6881 - Jun 26, 19:39 UTCJun 26, 20:55 UTC1h 15m
2026-06-26 OXF6881 - Jun 26, 15:45 UTCJun 26, 17:50 UTC2h 5m
2026-06-25 OXF6881 - Jun 25, 21:10 UTCJun 25, 22:39 UTC1h 30m
2026-06-25 OXF6881 - Jun 25, 18:39 UTCJun 25, 20:14 UTC1h 35m
2026-06-25 OXF6881 - Jun 25, 14:34 UTCJun 25, 16:09 UTC1h 35m
2026-06-23 OXF6881 - Jun 23, 18:25 UTCJun 23, 21:20 UTC2h 55m
2026-06-23 OXF6881 - Jun 23, 14:49 UTCJun 23, 16:44 UTC1h 55m
2026-06-22 OXF6881 - Jun 22, 18:44 UTCJun 22, 20:49 UTC2h 5m
2026-06-22 OXF6881 - Jun 22, 15:14 UTCJun 22, 17:04 UTC1h 50m
2026-06-22 OXF6881 - Jun 22, 04:34 UTCJun 22, 05:49 UTC1h 15m
2026-06-22 OXF6881 - Jun 22, 01:49 UTCJun 22, 03:50 UTC2h 0m

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 N28051 page for operator, model, and routing details .

Mode-S A2D11C frequently asked

What is Mode-S code A2D11C?
A2D11C is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N28051.
Where is Mode-S A2D11C registered?
Mode-S code A2D11C 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 A2D11C broadcasting right now?
Yes. Mode-S A2D11C is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2D11C, octal 50550434, decimal 10,670,364.
What flights does A2D11C operate?
Mode-S A2D11C has broadcast 1 distinct callsign, including OXF6881.