Apparatus

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sensors Mode-S transponder

A1276F

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N1735X · CESSNA 172 Skyhawk · operated by AEROSIM ACADEMY INC

Hex
A1276F
Octal
50223557
Decimal
10,561,391
Country
US
Tail
N1735X
Type
C172
No current signal · last broadcast 53m ago
Flights observed
257
Distinct callsigns
1
Country
US
Last broadcast
53m ago

Last known position

Most recent position reported by Mode-S A1276F.

Country allocation

The ICAO 24-bit address A1276F 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
LFA330 - 257 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 LFA330 - Jul 14, 12:00 UTCJul 14, 13:45 UTC1h 45m
2026-07-13 LFA330 SFB → SFB Jul 13, 13:35 UTCJul 13, 15:20 UTC1h 45m
2026-07-13 LFA330 - Jul 13, 11:20 UTCJul 13, 12:30 UTC1h 10m
2026-07-12 LFA330 - Jul 12, 22:25 UTCJul 12, 23:15 UTC50m
2026-07-11 LFA330 - Jul 11, 17:25 UTCJul 11, 18:15 UTC50m
2026-07-11 LFA330 - Jul 11, 13:45 UTCJul 11, 15:20 UTC1h 35m
2026-07-10 LFA330 - Jul 10, 19:20 UTCJul 10, 20:45 UTC1h 25m
2026-07-10 LFA330 SFB → SFB Jul 10, 16:15 UTCJul 10, 17:55 UTC1h 40m
2026-07-10 LFA330 - Jul 10, 10:45 UTCJul 10, 14:05 UTC3h 20m
2026-07-09 LFA330 SFB → SFB Jul 9, 21:00 UTCJul 9, 22:00 UTC1h 0m
2026-07-09 LFA330 - Jul 9, 18:50 UTCJul 9, 19:25 UTC35m
2026-07-09 LFA330 - Jul 9, 16:05 UTCJul 9, 17:45 UTC1h 40m
2026-07-09 LFA330 - Jul 9, 14:20 UTCJul 9, 15:15 UTC55m
2026-07-09 LFA330 - Jul 9, 11:35 UTCJul 9, 12:35 UTC1h 0m
2026-07-08 LFA330 - Jul 8, 12:40 UTCJul 8, 14:20 UTC1h 40m
2026-07-07 LFA330 SFB → SFB Jul 7, 21:30 UTCJul 7, 22:05 UTC35m
2026-07-07 LFA330 SFB → SFB Jul 7, 18:30 UTCJul 7, 19:30 UTC1h 0m
2026-07-07 LFA330 - Jul 7, 15:55 UTCJul 7, 16:40 UTC45m
2026-07-07 LFA330 - Jul 7, 13:20 UTCJul 7, 14:30 UTC1h 10m
2026-07-07 LFA330 - Jul 7, 11:00 UTCJul 7, 12:15 UTC1h 15m
2026-07-06 LFA330 SFB → SFB Jul 6, 15:50 UTCJul 6, 16:40 UTC50m
2026-07-06 LFA330 SFB → SFB Jul 6, 12:40 UTCJul 6, 14:30 UTC1h 50m
2026-07-05 LFA330 SFB → SFB Jul 5, 17:25 UTCJul 5, 18:25 UTC1h 0m
2026-07-05 LFA330 - Jul 5, 13:00 UTCJul 5, 14:00 UTC1h 0m
2026-07-04 LFA330 - Jul 4, 19:30 UTCJul 4, 20:25 UTC55m
2026-07-04 LFA330 - Jul 4, 15:45 UTCJul 4, 17:10 UTC1h 25m
2026-07-04 LFA330 SFB → SFB Jul 4, 13:20 UTCJul 4, 15:00 UTC1h 40m
2026-07-03 LFA330 - Jul 3, 16:45 UTCJul 3, 18:10 UTC1h 25m
2026-07-03 LFA330 SFB → SFB Jul 3, 10:25 UTCJul 3, 11:20 UTC55m
2026-07-02 LFA330 - Jul 2, 21:15 UTCJul 2, 22:45 UTC1h 30m
2026-07-02 LFA330 SFB → SFB Jul 2, 18:55 UTCJul 2, 19:55 UTC1h 0m
2026-07-02 LFA330 - Jul 2, 16:15 UTCJul 2, 17:45 UTC1h 30m
2026-07-02 LFA330 - Jul 2, 13:40 UTCJul 2, 14:35 UTC55m
2026-07-02 LFA330 SFB → SFB Jul 2, 10:25 UTCJul 2, 12:20 UTC1h 55m
2026-07-01 LFA330 - Jul 1, 22:50 UTCJul 1, 23:40 UTC50m
2026-07-01 LFA330 SFB → SFB Jul 1, 18:45 UTCJul 1, 19:20 UTC35m
2026-07-01 LFA330 - Jul 1, 15:50 UTCJul 1, 16:50 UTC1h 0m
2026-07-01 LFA330 - Jul 1, 12:55 UTCJul 1, 14:10 UTC1h 15m
2026-06-30 LFA330 - Jun 30, 16:00 UTCJun 30, 17:25 UTC1h 25m
2026-06-30 LFA330 SFB → SFB Jun 30, 13:20 UTCJun 30, 14:35 UTC1h 15m
2026-06-30 LFA330 - Jun 30, 10:35 UTCJun 30, 12:15 UTC1h 40m
2026-06-29 LFA330 - Jun 29, 13:39 UTCJun 29, 15:30 UTC1h 50m
2026-06-29 LFA330 - Jun 29, 10:50 UTCJun 29, 12:14 UTC1h 25m
2026-06-28 LFA330 SFB → SFB Jun 28, 16:39 UTCJun 28, 18:00 UTC1h 20m
2026-06-28 LFA330 - Jun 28, 13:19 UTCJun 28, 14:59 UTC1h 40m
2026-06-26 LFA330 SFB → SFB Jun 26, 18:49 UTCJun 26, 20:24 UTC1h 35m
2026-06-26 LFA330 SFB → SFB Jun 26, 16:39 UTCJun 26, 17:54 UTC1h 15m
2026-06-26 LFA330 - Jun 26, 13:40 UTCJun 26, 15:10 UTC1h 30m
2026-06-26 LFA330 SFB → SFB Jun 26, 11:00 UTCJun 26, 12:14 UTC1h 15m
2026-06-25 LFA330 - Jun 25, 20:09 UTCJun 25, 21:05 UTC55m

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 N1735X page for operator, model, and routing details .

Mode-S A1276F frequently asked

What is Mode-S code A1276F?
A1276F is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N1735X.
Where is Mode-S A1276F registered?
Mode-S code A1276F 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 A1276F broadcasting right now?
No active broadcast right now. Last signal was 53m ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1276F, octal 50223557, decimal 10,561,391.
What flights does A1276F operate?
Mode-S A1276F has broadcast 1 distinct callsign, including LFA330.