sensors Mode-S transponder

A1FF76

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N228HP · CESSNA R182 Skylane RG · operated by LANCE REID ENTERPRISES LLC

Hex
A1FF76
Octal
50377566
Decimal
10,616,694
Country
US
Tail
N228HP
Type
C82R
No current signal · last broadcast 5d ago
Flights observed
33
Distinct callsigns
1
Country
US
Last broadcast
5d ago

Last known position

Most recent position reported by Mode-S A1FF76.

Country allocation

The ICAO 24-bit address A1FF76 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
N228HP - 33 2026-07-24

Recent flights last 33

DateFlightRouteTakeoffLandingDuration
2026-07-24 N228HP - Jul 24, 19:45 UTCJul 24, 22:15 UTC2h 30m
2026-07-24 N228HP HIO → MFR Jul 24, 17:35 UTCJul 24, 19:40 UTC2h 5m
2026-07-22 N228HP - Jul 22, 18:10 UTCJul 22, 19:05 UTC55m
2026-07-20 N228HP - Jul 20, 19:35 UTCJul 20, 19:50 UTC15m
2026-07-20 N228HP - Jul 20, 18:10 UTCJul 20, 18:35 UTC25m
2026-07-20 N228HP - Jul 20, 16:00 UTCJul 20, 17:20 UTC1h 20m
2026-07-18 N228HP - Jul 18, 16:40 UTCJul 18, 16:50 UTC10m
2026-07-07 N228HP - Jul 7, 00:35 UTCJul 7, 01:00 UTC25m
2026-07-06 N228HP - Jul 6, 18:50 UTCJul 6, 19:25 UTC35m
2026-07-03 N228HP - Jul 3, 21:25 UTCJul 3, 21:50 UTC25m
2026-07-03 N228HP - Jul 3, 17:45 UTCJul 3, 18:15 UTC30m
2026-06-25 N228HP - Jun 25, 19:39 UTCJun 25, 21:55 UTC2h 15m
2026-06-23 N228HP - Jun 23, 15:59 UTCJun 23, 18:25 UTC2h 25m
2026-06-22 N228HP - Jun 22, 16:10 UTCJun 22, 17:15 UTC1h 5m
2026-06-22 N228HP - Jun 22, 13:35 UTCJun 22, 13:59 UTC25m
2026-06-18 N228HP - Jun 18, 17:35 UTCJun 18, 17:55 UTC20m
2026-06-18 N228HP - Jun 18, 14:15 UTCJun 18, 15:15 UTC1h 0m
2026-06-16 N228HP - Jun 16, 03:04 UTCJun 16, 03:20 UTC15m
2026-06-15 N228HP - Jun 15, 21:09 UTCJun 15, 21:30 UTC20m
2026-06-14 N228HP - Jun 14, 01:55 UTCJun 14, 02:10 UTC15m
2026-06-13 N228HP - Jun 13, 16:35 UTCJun 13, 17:00 UTC25m
2026-06-13 N228HP - Jun 13, 15:00 UTCJun 13, 15:10 UTC10m
2026-06-12 N228HP - Jun 12, 21:55 UTCJun 12, 22:05 UTC10m
2026-06-10 N228HP - Jun 10, 17:35 UTCJun 10, 18:20 UTC45m
2026-06-10 N228HP - Jun 10, 14:05 UTCJun 10, 14:55 UTC50m
2026-06-08 N228HP - Jun 8, 17:55 UTCJun 8, 18:40 UTC45m
2026-06-08 N228HP - Jun 8, 14:25 UTCJun 8, 15:20 UTC55m
2026-06-05 N228HP - Jun 5, 23:45 UTCJun 5, 23:55 UTC10m
2026-05-08 N228HP - May 8, 23:00 UTCMay 8, 23:10 UTC10m
2026-05-08 N228HP - May 8, 20:45 UTCMay 8, 22:30 UTC1h 45m
2026-05-06 N228HP - May 6, 20:15 UTCMay 6, 22:30 UTC2h 15m
2026-04-23 N228HP - Apr 23, 17:35 UTCApr 23, 18:10 UTC35m
2026-04-19 N228HP - Apr 19, 21:05 UTCApr 19, 21:45 UTC40m

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 N228HP page for operator, model, and routing details .

Mode-S A1FF76 frequently asked

What is Mode-S code A1FF76?
A1FF76 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N228HP.
Where is Mode-S A1FF76 registered?
Mode-S code A1FF76 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 A1FF76 broadcasting right now?
No active broadcast right now. Last signal was 5d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1FF76, octal 50377566, decimal 10,616,694.
What flights does A1FF76 operate?
Mode-S A1FF76 has broadcast 1 distinct callsign, including N228HP.