Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A03B7C

ICAO 24-bit transponder address · allocated to United States

Hex
A03B7C
Octal
50035574
Decimal
10,500,988
Country
US
No current signal · last broadcast 2d ago
Flights observed
48
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A03B7C.

Country allocation

The ICAO 24-bit address A03B7C 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
FFL1109 - 48 2026-07-26

Recent flights last 48

DateFlightRouteTakeoffLandingDuration
2026-07-26 FFL1109 - Jul 26, 15:40 UTCJul 26, 16:25 UTC45m
2026-07-25 FFL1109 - Jul 25, 14:10 UTCJul 25, 14:55 UTC45m
2026-07-24 FFL1109 - Jul 24, 14:10 UTCJul 24, 14:45 UTC35m
2026-07-23 FFL1109 - Jul 23, 13:15 UTCJul 23, 13:50 UTC35m
2026-07-22 FFL1109 - Jul 22, 13:05 UTCJul 22, 13:35 UTC30m
2026-07-20 FFL1109 - Jul 20, 14:55 UTCJul 20, 15:25 UTC30m
2026-07-19 FFL1109 - Jul 19, 14:15 UTCJul 19, 14:35 UTC20m
2026-07-14 FFL1109 - Jul 14, 16:05 UTCJul 14, 16:25 UTC20m
2026-07-14 FFL1109 - Jul 14, 15:50 UTCJul 14, 16:00 UTC10m
2026-07-13 FFL1109 - Jul 13, 16:20 UTCJul 13, 16:55 UTC35m
2026-07-11 FFL1109 - Jul 11, 13:05 UTCJul 11, 13:35 UTC30m
2026-07-11 FFL1109 - Jul 11, 12:35 UTCJul 11, 12:45 UTC10m
2026-07-10 FFL1109 - Jul 10, 17:45 UTCJul 10, 18:10 UTC25m
2026-07-08 FFL1109 - Jul 8, 19:45 UTCJul 8, 19:55 UTC10m
2026-07-08 FFL1109 - Jul 8, 19:20 UTCJul 8, 19:40 UTC20m
2026-07-05 FFL1109 - Jul 5, 14:00 UTCJul 5, 14:40 UTC40m
2026-07-04 FFL1109 - Jul 4, 12:45 UTCJul 4, 13:30 UTC45m
2026-07-03 FFL1109 - Jul 3, 12:30 UTCJul 3, 13:00 UTC30m
2026-07-02 FFL1109 - Jul 2, 17:50 UTCJul 2, 18:05 UTC15m
2026-06-26 FFL1109 - Jun 26, 12:34 UTCJun 26, 12:55 UTC20m
2026-06-25 FFL1109 - Jun 25, 12:30 UTCJun 25, 13:00 UTC30m
2026-06-24 FFL1109 - Jun 24, 12:44 UTCJun 24, 13:10 UTC25m
2026-06-22 FFL1109 - Jun 22, 12:54 UTCJun 22, 13:35 UTC40m
2026-06-21 FFL1109 - Jun 21, 12:44 UTCJun 21, 13:24 UTC40m
2026-06-20 FFL1109 - Jun 20, 12:59 UTCJun 20, 13:34 UTC35m
2026-06-19 FFL1109 - Jun 19, 16:44 UTCJun 19, 17:09 UTC25m
2026-06-16 FFL1109 - Jun 16, 14:39 UTCJun 16, 15:05 UTC25m
2026-06-13 FFL1109 - Jun 13, 13:20 UTCJun 13, 13:45 UTC25m
2026-06-13 FFL1109 - Jun 13, 10:30 UTCJun 13, 11:50 UTC1h 20m
2026-06-12 FFL1109 - Jun 12, 18:05 UTCJun 12, 22:00 UTC3h 55m
2026-06-10 FFL1109 - Jun 10, 13:05 UTCJun 10, 13:45 UTC40m
2026-06-08 FFL1109 - Jun 8, 13:10 UTCJun 8, 13:45 UTC35m
2026-06-05 FFL1109 - Jun 5, 13:10 UTCJun 5, 13:40 UTC30m
2026-06-04 FFL1109 - Jun 4, 13:10 UTCJun 4, 13:50 UTC40m
2026-06-03 FFL1109 - Jun 3, 13:15 UTCJun 3, 13:50 UTC35m
2026-06-02 FFL1109 - Jun 2, 17:45 UTCJun 2, 18:20 UTC35m
2026-05-29 FFL1109 - May 29, 12:45 UTCMay 29, 13:15 UTC30m
2026-05-16 FFL1109 - May 16, 13:11 UTCMay 16, 13:41 UTC30m
2026-05-15 FFL1109 - May 15, 13:05 UTCMay 15, 13:40 UTC35m
2026-05-14 FFL1109 - May 14, 19:25 UTCMay 14, 19:55 UTC30m
2026-05-13 FFL1109 - May 13, 13:45 UTCMay 13, 14:20 UTC35m
2026-05-12 FFL1109 - May 12, 18:45 UTCMay 12, 19:10 UTC25m
2026-05-01 FFL1109 - May 1, 17:20 UTCMay 1, 17:55 UTC35m
2026-04-29 FFL1109 - Apr 29, 15:45 UTCApr 29, 16:20 UTC35m
2026-04-21 FFL1109 - Apr 21, 14:15 UTCApr 21, 14:50 UTC35m
2026-04-20 FFL1109 - Apr 20, 16:50 UTCApr 20, 17:30 UTC40m
2026-04-19 FFL1109 - Apr 19, 18:45 UTCApr 19, 19:20 UTC35m
2026-04-14 FFL1109 - Apr 14, 19:05 UTCApr 14, 19:30 UTC25m

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.

Mode-S A03B7C frequently asked

What is Mode-S code A03B7C?
A03B7C is an ICAO 24-bit transponder address. Allocated to United States.
Where is Mode-S A03B7C registered?
Mode-S code A03B7C 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 A03B7C broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A03B7C, octal 50035574, decimal 10,500,988.
What flights does A03B7C operate?
Mode-S A03B7C has broadcast 1 distinct callsign, including FFL1109.