Apparatus

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sensors Mode-S transponder

A7F94D

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N61251 · CESSNA 150 · operated by CHICKASHA WINGS INC

Hex
A7F94D
Octal
51774515
Decimal
11,008,333
Country
US
Tail
N61251
Type
C150
No current signal · last broadcast 4d ago
Flights observed
103
Distinct callsigns
1
Country
US
Last broadcast
4d ago

Last known position

Most recent position reported by Mode-S A7F94D.

Country allocation

The ICAO 24-bit address A7F94D 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
N61251 - 103 2026-07-13

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-13 N61251 - Jul 13, 20:30 UTCJul 13, 21:00 UTC30m
2026-07-13 N61251 - Jul 13, 14:25 UTCJul 13, 14:55 UTC30m
2026-07-12 N61251 - Jul 12, 18:50 UTCJul 12, 19:30 UTC40m
2026-07-12 N61251 CHK → CHK Jul 12, 14:25 UTCJul 12, 16:01 UTC1h 35m
2026-07-11 N61251 CHK → CHK Jul 11, 17:20 UTCJul 11, 18:05 UTC45m
2026-07-10 N61251 CHK → CHK Jul 10, 14:30 UTCJul 10, 15:20 UTC50m
2026-07-09 N61251 CHK → CHK Jul 9, 14:00 UTCJul 9, 15:00 UTC1h 0m
2026-07-09 N61251 - Jul 9, 04:05 UTCJul 9, 04:20 UTC15m
2026-07-09 N61251 - Jul 9, 01:20 UTCJul 9, 02:55 UTC1h 35m
2026-07-08 N61251 - Jul 8, 22:35 UTCJul 9, 00:25 UTC1h 50m
2026-07-08 N61251 CHK → GOK Jul 8, 19:55 UTCJul 8, 21:45 UTC1h 50m
2026-07-07 N61251 - Jul 7, 15:35 UTCJul 7, 16:35 UTC1h 0m
2026-07-06 N61251 - Jul 6, 20:55 UTCJul 6, 21:50 UTC55m
2026-07-06 N61251 - Jul 6, 17:20 UTCJul 6, 18:45 UTC1h 25m
2026-07-02 N61251 CHK → CHK Jul 2, 15:05 UTCJul 2, 16:00 UTC55m
2026-07-01 N61251 - Jul 1, 03:10 UTCJul 1, 03:20 UTC10m
2026-06-27 N61251 - Jun 27, 17:14 UTCJun 27, 17:39 UTC25m
2026-06-27 N61251 - Jun 27, 16:04 UTCJun 27, 16:44 UTC40m
2026-06-27 N61251 - Jun 27, 14:35 UTCJun 27, 15:14 UTC40m
2026-06-26 N61251 - Jun 26, 15:05 UTCJun 26, 15:39 UTC35m
2026-06-26 N61251 - Jun 26, 14:50 UTCJun 26, 14:55 UTC5m
2026-06-25 N61251 CHK → CHK Jun 25, 16:59 UTCJun 25, 17:39 UTC40m
2026-06-25 N61251 - Jun 25, 14:55 UTCJun 25, 15:40 UTC45m
2026-06-24 N61251 - Jun 24, 22:10 UTCJun 24, 23:00 UTC50m
2026-06-24 N61251 CHK → CHK Jun 24, 19:39 UTCJun 24, 20:24 UTC45m
2026-06-22 N61251 CHK → CHK Jun 22, 18:00 UTCJun 22, 18:49 UTC50m
2026-06-20 N61251 - Jun 20, 14:50 UTCJun 20, 15:24 UTC35m
2026-06-19 N61251 - Jun 19, 23:54 UTCJun 20, 00:29 UTC35m
2026-06-19 N61251 - Jun 19, 22:39 UTCJun 19, 23:14 UTC35m
2026-06-19 N61251 CHK → CHK Jun 19, 19:39 UTCJun 19, 20:14 UTC35m
2026-06-16 N61251 - Jun 16, 21:25 UTCJun 16, 21:55 UTC30m
2026-06-16 N61251 - Jun 16, 20:30 UTCJun 16, 20:55 UTC25m
2026-06-16 N61251 CHK → CHK Jun 16, 14:55 UTCJun 16, 15:35 UTC40m
2026-06-15 N61251 - Jun 15, 22:05 UTCJun 15, 22:15 UTC10m
2026-06-15 N61251 - Jun 15, 20:15 UTCJun 15, 20:50 UTC35m
2026-06-15 N61251 CHK → CHK Jun 15, 15:00 UTCJun 15, 15:40 UTC40m
2026-06-15 N61251 CHK → CHK Jun 15, 00:10 UTCJun 15, 01:55 UTC1h 45m
2026-06-13 N61251 - Jun 13, 23:25 UTCJun 14, 01:40 UTC2h 15m
2026-06-12 N61251 - Jun 12, 15:55 UTCJun 12, 16:50 UTC55m
2026-06-12 N61251 CHK → CHK Jun 12, 12:45 UTCJun 12, 13:05 UTC20m
2026-06-09 N61251 - Jun 9, 12:45 UTCJun 9, 13:10 UTC25m
2026-06-05 N61251 - Jun 5, 00:00 UTCJun 5, 00:35 UTC35m
2026-06-04 N61251 - Jun 4, 20:30 UTCJun 4, 21:25 UTC55m
2026-06-04 N61251 - Jun 4, 17:20 UTCJun 4, 18:25 UTC1h 5m
2026-06-04 N61251 - Jun 4, 14:35 UTCJun 4, 15:10 UTC35m
2026-06-03 N61251 - Jun 3, 21:20 UTCJun 3, 22:05 UTC45m
2026-06-01 N61251 - Jun 1, 18:20 UTCJun 1, 19:00 UTC40m
2026-06-01 N61251 - Jun 1, 15:00 UTCJun 1, 15:35 UTC35m
2026-05-30 N61251 - May 30, 23:10 UTCMay 31, 00:45 UTC1h 35m
2026-05-30 N61251 - May 30, 20:15 UTCMay 30, 21:15 UTC1h 0m

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 N61251 page for operator, model, and routing details .

Mode-S A7F94D frequently asked

What is Mode-S code A7F94D?
A7F94D is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N61251.
Where is Mode-S A7F94D registered?
Mode-S code A7F94D 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 A7F94D broadcasting right now?
No active broadcast right now. Last signal was 4d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A7F94D, octal 51774515, decimal 11,008,333.
What flights does A7F94D operate?
Mode-S A7F94D has broadcast 1 distinct callsign, including N61251.