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sensors Mode-S transponder

A50FCC

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N425SK · operated by AIRPLANE FACTORY INC

Hex
A50FCC
Octal
51207714
Decimal
10,817,484
Country
US
Tail
N425SK
Type
SLG4
No current signal · last broadcast Jun 28, 18:29 UTC
Flights observed
107
Distinct callsigns
1
Country
US
Last broadcast
Jun 28, 18:29 UTC

Last known position

Most recent position reported by Mode-S A50FCC.

Country allocation

The ICAO 24-bit address A50FCC 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
N425SK - 107 2026-06-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-06-28 N425SK - Jun 28, 17:30 UTCJun 28, 18:29 UTC1h 0m
2026-06-28 N425SK - Jun 28, 15:05 UTCJun 28, 16:25 UTC1h 20m
2026-06-28 N425SK - Jun 28, 13:14 UTCJun 28, 14:04 UTC50m
2026-06-28 N425SK - Jun 28, 11:39 UTCJun 28, 12:39 UTC1h 0m
2026-06-27 N425SK HWO → HWO Jun 27, 17:49 UTCJun 27, 18:24 UTC35m
2026-06-27 N425SK - Jun 27, 14:20 UTCJun 27, 14:39 UTC20m
2026-06-25 N425SK - Jun 25, 13:55 UTCJun 25, 14:50 UTC55m
2026-06-25 N425SK HWO → HWO Jun 25, 11:54 UTCJun 25, 13:09 UTC1h 15m
2026-06-24 N425SK - Jun 24, 14:50 UTCJun 24, 15:14 UTC25m
2026-06-24 N425SK - Jun 24, 13:10 UTCJun 24, 13:44 UTC35m
2026-06-22 N425SK - Jun 22, 18:30 UTCJun 22, 18:54 UTC25m
2026-06-22 N425SK - Jun 22, 13:54 UTCJun 22, 15:05 UTC1h 10m
2026-06-21 N425SK HWO → HWO Jun 21, 12:35 UTCJun 21, 13:04 UTC30m
2026-06-20 N425SK - Jun 20, 14:54 UTCJun 20, 15:29 UTC35m
2026-06-20 N425SK - Jun 20, 11:44 UTCJun 20, 12:24 UTC40m
2026-06-18 N425SK - Jun 18, 16:40 UTCJun 18, 17:30 UTC50m
2026-06-18 N425SK HWO → HWO Jun 18, 14:55 UTCJun 18, 15:40 UTC45m
2026-06-18 N425SK - Jun 18, 12:40 UTCJun 18, 13:30 UTC50m
2026-06-17 N425SK - Jun 17, 12:50 UTCJun 17, 13:05 UTC15m
2026-06-16 N425SK - Jun 16, 22:20 UTCJun 16, 23:15 UTC55m
2026-06-16 N425SK - Jun 16, 17:15 UTCJun 16, 18:15 UTC1h 0m
2026-06-12 N425SK HWO → HWO Jun 12, 11:55 UTCJun 12, 13:55 UTC2h 0m
2026-06-11 N425SK HWO → HWO Jun 11, 17:45 UTCJun 11, 18:35 UTC50m
2026-06-09 N425SK HWO → HWO Jun 9, 20:40 UTCJun 9, 21:30 UTC50m
2026-06-09 N425SK HWO → HWO Jun 9, 18:00 UTCJun 9, 18:50 UTC50m
2026-06-09 N425SK - Jun 9, 14:05 UTCJun 9, 15:35 UTC1h 30m
2026-06-08 N425SK HWO → HWO Jun 8, 21:35 UTCJun 8, 22:45 UTC1h 10m
2026-06-08 N425SK - Jun 8, 17:15 UTCJun 8, 17:55 UTC40m
2026-06-07 N425SK - Jun 7, 17:35 UTCJun 7, 19:50 UTC2h 15m
2026-06-07 N425SK - Jun 7, 13:20 UTCJun 7, 15:50 UTC2h 30m
2026-06-05 N425SK HWO → HWO Jun 5, 16:15 UTCJun 5, 16:35 UTC20m
2026-06-04 N425SK HWO → HWO Jun 4, 17:55 UTCJun 4, 18:55 UTC1h 0m
2026-06-04 N425SK HWO → HWO Jun 4, 15:35 UTCJun 4, 16:00 UTC25m
2026-06-03 N425SK HWO → HWO Jun 3, 16:40 UTCJun 3, 17:35 UTC55m
2026-06-03 N425SK - Jun 3, 11:45 UTCJun 3, 13:10 UTC1h 25m
2026-06-02 N425SK - Jun 2, 16:35 UTCJun 2, 17:30 UTC55m
2026-06-02 N425SK HWO → HWO Jun 2, 11:35 UTCJun 2, 12:30 UTC55m
2026-06-01 N425SK HWO → HWO Jun 1, 13:45 UTCJun 1, 14:45 UTC1h 0m
2026-05-31 N425SK HWO → HWO May 31, 12:00 UTCMay 31, 13:25 UTC1h 25m
2026-05-29 N425SK - May 29, 15:25 UTCMay 29, 16:05 UTC40m
2026-05-29 N425SK - May 29, 12:00 UTCMay 29, 13:05 UTC1h 5m
2026-05-26 N425SK HWO → HWO May 26, 14:14 UTCMay 26, 14:50 UTC35m
2026-05-25 N425SK - May 25, 16:55 UTCMay 25, 18:15 UTC1h 20m
2026-05-25 N425SK - May 25, 15:25 UTCMay 25, 15:35 UTC10m
2026-05-25 N425SK - May 25, 14:15 UTCMay 25, 14:40 UTC25m
2026-05-25 N425SK - May 25, 12:35 UTCMay 25, 13:45 UTC1h 10m
2026-05-24 N425SK - May 24, 15:10 UTCMay 24, 16:40 UTC1h 30m
2026-05-24 N425SK - May 24, 11:35 UTCMay 24, 13:55 UTC2h 20m
2026-05-23 N425SK HWO → HWO May 23, 13:45 UTCMay 23, 15:00 UTC1h 15m
2026-05-22 N425SK HWO → HWO May 22, 13:50 UTCMay 22, 14:45 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 N425SK page for operator, model, and routing details .

Mode-S A50FCC frequently asked

What is Mode-S code A50FCC?
A50FCC is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N425SK.
Where is Mode-S A50FCC registered?
Mode-S code A50FCC 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 A50FCC broadcasting right now?
No active broadcast right now. Last signal was Jun 28, 18:29 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A50FCC, octal 51207714, decimal 10,817,484.
What flights does A50FCC operate?
Mode-S A50FCC has broadcast 1 distinct callsign, including N425SK.