Apparatus

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sensors Mode-S transponder

A7F8FC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N6123Q · PIPER PA-28-140/150/160/180 · operated by AIRFLAIR INC

Hex
A7F8FC
Octal
51774374
Decimal
11,008,252
Country
US
Tail
N6123Q
Type
P28A
Broadcasting now · callsign N6123Q · 6,325 ft
Flights observed
131
Distinct callsigns
1
Country
US
Last broadcast
1h ago

Current position

A7F8FC is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A7F8FC 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
N6123Q - 130 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N6123Q - Jul 14, 19:45 UTCJul 14, 20:25 UTC40m
2026-07-14 N6123Q - Jul 14, 13:55 UTCJul 14, 14:25 UTC30m
2026-07-14 N6123Q - Jul 14, 11:35 UTCJul 14, 11:50 UTC15m
2026-07-11 N6123Q - Jul 11, 14:15 UTCJul 11, 14:25 UTC10m
2026-07-10 N6123Q - Jul 10, 16:05 UTCJul 10, 16:20 UTC15m
2026-07-10 N6123Q - Jul 10, 02:30 UTCJul 10, 03:45 UTC1h 15m
2026-07-09 N6123Q - Jul 9, 21:55 UTCJul 9, 22:45 UTC50m
2026-07-07 N6123Q - Jul 7, 19:30 UTCJul 7, 20:10 UTC40m
2026-07-07 N6123Q - Jul 7, 13:35 UTCJul 7, 15:15 UTC1h 40m
2026-07-06 N6123Q - Jul 6, 20:40 UTCJul 6, 21:35 UTC55m
2026-07-06 N6123Q - Jul 6, 14:35 UTCJul 6, 14:50 UTC15m
2026-07-05 N6123Q - Jul 5, 02:55 UTCJul 5, 03:30 UTC35m
2026-07-02 N6123Q - Jul 2, 19:15 UTCJul 2, 19:30 UTC15m
2026-07-02 N6123Q - Jul 2, 16:25 UTCJul 2, 17:15 UTC50m
2026-07-01 N6123Q - Jul 1, 18:45 UTCJul 1, 19:20 UTC35m
2026-07-01 N6123Q - Jul 1, 16:20 UTCJul 1, 16:30 UTC10m
2026-06-30 N6123Q - Jun 30, 18:30 UTCJun 30, 19:25 UTC55m
2026-06-29 N6123Q - Jun 29, 21:14 UTCJun 29, 22:19 UTC1h 5m
2026-06-29 N6123Q - Jun 29, 16:10 UTCJun 29, 16:29 UTC20m
2026-06-26 N6123Q - Jun 26, 23:44 UTCJun 27, 00:14 UTC30m
2026-06-26 N6123Q - Jun 26, 21:20 UTCJun 26, 21:35 UTC15m
2026-06-25 N6123Q - Jun 25, 13:24 UTCJun 25, 14:24 UTC1h 0m
2026-06-24 N6123Q - Jun 24, 21:14 UTCJun 24, 21:54 UTC40m
2026-06-24 N6123Q - Jun 24, 19:04 UTCJun 24, 20:05 UTC1h 0m
2026-06-24 N6123Q - Jun 24, 18:09 UTCJun 24, 19:00 UTC50m
2026-06-24 N6123Q - Jun 24, 12:30 UTCJun 24, 13:40 UTC1h 10m
2026-06-23 N6123Q - Jun 23, 21:49 UTCJun 23, 22:34 UTC45m
2026-06-23 N6123Q - Jun 23, 03:04 UTCJun 23, 04:39 UTC1h 35m
2026-06-22 N6123Q - Jun 22, 18:49 UTCJun 22, 19:05 UTC15m
2026-06-20 N6123Q - Jun 20, 19:44 UTCJun 20, 21:25 UTC1h 40m
2026-06-20 N6123Q - Jun 20, 12:45 UTCJun 20, 13:39 UTC55m
2026-06-18 N6123Q - Jun 18, 11:45 UTCJun 18, 11:55 UTC10m
2026-06-16 N6123Q - Jun 16, 21:45 UTCJun 16, 22:55 UTC1h 10m
2026-06-16 N6123Q - Jun 16, 19:50 UTCJun 16, 20:30 UTC40m
2026-06-14 N6123Q - Jun 14, 13:45 UTCJun 14, 13:55 UTC10m
2026-06-13 N6123Q - Jun 13, 15:40 UTCJun 13, 16:00 UTC20m
2026-06-12 N6123Q - Jun 12, 13:05 UTCJun 12, 13:15 UTC10m
2026-06-10 N6123Q - Jun 10, 21:25 UTCJun 10, 21:40 UTC15m
2026-06-09 N6123Q - Jun 9, 21:55 UTCJun 9, 22:35 UTC40m
2026-06-09 N6123Q - Jun 9, 17:30 UTCJun 9, 17:50 UTC20m
2026-06-09 N6123Q - Jun 9, 14:45 UTCJun 9, 14:55 UTC10m
2026-06-09 N6123Q - Jun 9, 12:50 UTCJun 9, 13:45 UTC55m
2026-06-08 N6123Q - Jun 8, 18:30 UTCJun 8, 18:50 UTC20m
2026-06-02 N6123Q - Jun 2, 00:50 UTCJun 2, 01:05 UTC15m
2026-06-01 N6123Q - Jun 1, 22:30 UTCJun 1, 22:45 UTC15m
2026-06-01 N6123Q - Jun 1, 00:40 UTCJun 1, 00:50 UTC10m
2026-05-31 N6123Q - May 31, 22:45 UTCMay 31, 22:55 UTC10m
2026-05-31 N6123Q - May 31, 19:40 UTCMay 31, 20:00 UTC20m
2026-05-31 N6123Q - May 31, 18:50 UTCMay 31, 19:05 UTC15m
2026-05-30 N6123Q - May 30, 23:20 UTCMay 30, 23:30 UTC10m

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 N6123Q page for operator, model, and routing details .

Mode-S A7F8FC frequently asked

What is Mode-S code A7F8FC?
A7F8FC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N6123Q.
Where is Mode-S A7F8FC registered?
Mode-S code A7F8FC 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 A7F8FC broadcasting right now?
Yes. Mode-S A7F8FC is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7F8FC, octal 51774374, decimal 11,008,252.
What flights does A7F8FC operate?
Mode-S A7F8FC has broadcast 1 distinct callsign, including N6123Q.