Apparatus

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sensors Mode-S transponder

A0C7E3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N15AN · operated by ALF IX LLC

Hex
A0C7E3
Octal
50143743
Decimal
10,536,931
Country
US
Tail
N15AN
Type
C172
No current signal · last broadcast 44m ago
Flights observed
96
Distinct callsigns
1
Country
US
Last broadcast
44m ago

Last known position

Most recent position reported by Mode-S A0C7E3.

Country allocation

The ICAO 24-bit address A0C7E3 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
N15AN - 96 2026-06-02

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-02 N15AN - Jun 2, 18:05 UTCJun 2, 18:30 UTC25m
2026-06-02 N15AN - Jun 2, 16:45 UTCJun 2, 17:15 UTC30m
2026-06-02 N15AN DBQ → DBQ Jun 2, 12:40 UTCJun 2, 15:35 UTC2h 55m
2026-06-02 N15AN - Jun 2, 03:30 UTCJun 2, 05:00 UTC1h 30m
2026-06-02 N15AN DBQ → DSM Jun 2, 00:20 UTCJun 2, 01:40 UTC1h 20m
2026-06-01 N15AN DBQ → DBQ Jun 1, 21:35 UTCJun 1, 22:30 UTC55m
2026-06-01 N15AN DBQ → DBQ Jun 1, 18:20 UTCJun 1, 19:20 UTC1h 0m
2026-06-01 N15AN DBQ → DBQ Jun 1, 16:05 UTCJun 1, 17:10 UTC1h 5m
2026-06-01 N15AN DBQ → DBQ Jun 1, 13:45 UTCJun 1, 14:45 UTC1h 0m
2026-05-29 N15AN DBQ → DBQ May 29, 17:25 UTCMay 29, 19:15 UTC1h 50m
2026-05-29 N15AN DBQ → DBQ May 29, 13:50 UTCMay 29, 16:20 UTC2h 30m
2026-05-28 N15AN DBQ → DBQ May 28, 22:40 UTCMay 28, 23:40 UTC1h 0m
2026-05-28 N15AN DBQ → DBQ May 28, 20:40 UTCMay 28, 21:45 UTC1h 5m
2026-05-28 N15AN DBQ → DBQ May 28, 16:55 UTCMay 28, 19:30 UTC2h 35m
2026-05-22 N15AN - May 22, 14:40 UTCMay 22, 15:45 UTC1h 5m
2026-05-21 N15AN DBQ → DBQ May 21, 23:10 UTCMay 22, 00:20 UTC1h 10m
2026-05-21 N15AN - May 21, 21:00 UTCMay 21, 22:15 UTC1h 15m
2026-05-21 N15AN - May 21, 19:30 UTCMay 21, 20:10 UTC40m
2026-05-21 N15AN - May 21, 17:25 UTCMay 21, 18:30 UTC1h 5m
2026-05-21 N15AN DBQ → DBQ May 21, 14:35 UTCMay 21, 16:05 UTC1h 30m
2026-05-21 N15AN DBQ → DBQ May 21, 12:35 UTCMay 21, 13:40 UTC1h 5m
2026-05-20 N15AN - May 20, 20:55 UTCMay 20, 22:40 UTC1h 45m
2026-05-20 N15AN - May 20, 17:55 UTCMay 20, 19:00 UTC1h 5m
2026-05-20 N15AN - May 20, 15:50 UTCMay 20, 16:50 UTC1h 0m
2026-05-20 N15AN - May 20, 12:45 UTCMay 20, 14:25 UTC1h 40m
2026-05-18 N15AN DBQ → DBQ May 18, 17:40 UTCMay 18, 18:45 UTC1h 4m
2026-05-15 N15AN DBQ → DBQ May 15, 20:15 UTCMay 15, 21:20 UTC1h 5m
2026-05-15 N15AN DBQ → DBQ May 15, 17:10 UTCMay 15, 18:35 UTC1h 25m
2026-05-15 N15AN DBQ → DBQ May 15, 13:15 UTCMay 15, 15:40 UTC2h 24m
2026-05-14 N15AN DBQ → DBQ May 14, 22:50 UTCMay 14, 23:45 UTC55m
2026-05-14 N15AN - May 14, 21:05 UTCMay 14, 21:55 UTC50m
2026-05-14 N15AN - May 14, 19:20 UTCMay 14, 20:15 UTC55m
2026-05-14 N15AN DBQ → DBQ May 14, 14:55 UTCMay 14, 18:10 UTC3h 15m
2026-05-14 N15AN DBQ → DBQ May 14, 12:45 UTCMay 14, 13:30 UTC45m
2026-05-13 N15AN DBQ → DBQ May 13, 21:05 UTCMay 13, 23:50 UTC2h 45m
2026-05-13 N15AN DBQ → DBQ May 13, 17:45 UTCMay 13, 18:20 UTC35m
2026-05-13 N15AN DBQ → DBQ May 13, 13:31 UTCMay 13, 16:20 UTC2h 50m
2026-05-11 N15AN - May 11, 22:00 UTCMay 11, 22:35 UTC34m
2026-05-11 N15AN DBQ → DBQ May 11, 20:15 UTCMay 11, 21:05 UTC50m
2026-05-11 N15AN - May 11, 18:35 UTCMay 11, 19:05 UTC30m
2026-05-11 N15AN - May 11, 17:55 UTCMay 11, 18:30 UTC35m
2026-05-11 N15AN DBQ → DBQ May 11, 16:10 UTCMay 11, 16:50 UTC40m
2026-05-08 N15AN DBQ → DBQ May 8, 19:30 UTCMay 8, 22:25 UTC2h 55m
2026-05-08 N15AN DBQ → DBQ May 8, 14:45 UTCMay 8, 17:55 UTC3h 10m
2026-05-08 N15AN DBQ → DBQ May 8, 12:49 UTCMay 8, 13:50 UTC1h 0m
2026-05-07 N15AN DBQ → DBQ May 7, 16:00 UTCMay 7, 16:50 UTC50m
2026-05-07 N15AN DBQ → DBQ May 7, 13:30 UTCMay 7, 14:35 UTC1h 5m
2026-05-06 N15AN DBQ → DBQ May 6, 13:00 UTCMay 6, 16:50 UTC3h 50m
2026-05-05 N15AN DBQ → DBQ May 5, 18:00 UTCMay 5, 18:55 UTC55m
2026-05-05 N15AN DBQ → DBQ May 5, 16:15 UTCMay 5, 16:50 UTC35m

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 N15AN page for operator, model, and routing details .

Mode-S A0C7E3 frequently asked

What is Mode-S code A0C7E3?
A0C7E3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N15AN.
Where is Mode-S A0C7E3 registered?
Mode-S code A0C7E3 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 A0C7E3 broadcasting right now?
No active broadcast right now. Last signal was 44m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0C7E3, octal 50143743, decimal 10,536,931.
What flights does A0C7E3 operate?
Mode-S A0C7E3 has broadcast 1 distinct callsign, including N15AN.