Apparatus

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sensors Mode-S transponder

A267F0

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N254SF · operated by TEXTRON AVIATION INC

Hex
A267F0
Octal
50463760
Decimal
10,643,440
Country
US
Tail
N254SF
Type
C172
No current signal · last broadcast 7h ago
Flights observed
131
Distinct callsigns
1
Country
US
Last broadcast
7h ago

Last known position

Most recent position reported by Mode-S A267F0.

Country allocation

The ICAO 24-bit address A267F0 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
N254SF - 131 2026-05-29

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-05-29 N254SF BJC → BJC May 29, 17:25 UTCMay 29, 18:15 UTC50m
2026-05-29 N254SF BJC → BJC May 29, 15:15 UTCMay 29, 16:10 UTC55m
2026-05-28 N254SF BJC → BJC May 28, 22:20 UTCMay 28, 23:30 UTC1h 10m
2026-05-28 N254SF BJC → BJC May 28, 19:05 UTCMay 28, 20:55 UTC1h 50m
2026-05-28 N254SF - May 28, 15:55 UTCMay 28, 16:35 UTC40m
2026-05-28 N254SF - May 28, 15:25 UTCMay 28, 15:40 UTC15m
2026-05-28 N254SF - May 28, 03:15 UTCMay 28, 04:25 UTC1h 10m
2026-05-28 N254SF - May 28, 01:00 UTCMay 28, 02:35 UTC1h 35m
2026-05-27 N254SF BJC → BJC May 27, 22:55 UTCMay 27, 23:20 UTC25m
2026-05-27 N254SF BJC → BJC May 27, 13:50 UTCMay 27, 15:05 UTC1h 15m
2026-05-26 N254SF BJC → BJC May 26, 22:05 UTCMay 26, 23:39 UTC1h 35m
2026-05-26 N254SF - May 26, 19:45 UTCMay 26, 21:04 UTC1h 20m
2026-05-26 N254SF BJC → BJC May 26, 17:20 UTCMay 26, 18:50 UTC1h 30m
2026-05-26 N254SF - May 26, 05:15 UTCMay 26, 06:20 UTC1h 5m
2026-05-26 N254SF - May 26, 03:00 UTCMay 26, 04:15 UTC1h 15m
2026-05-25 N254SF BJC → BJC May 25, 18:00 UTCMay 25, 19:20 UTC1h 20m
2026-05-25 N254SF BJC → BJC May 25, 15:45 UTCMay 25, 16:55 UTC1h 10m
2026-05-24 N254SF BJC → BJC May 24, 15:25 UTCMay 24, 15:55 UTC30m
2026-05-24 N254SF BJC → BJC May 24, 01:05 UTCMay 24, 01:50 UTC45m
2026-05-23 N254SF BJC → BJC May 23, 21:05 UTCMay 23, 22:35 UTC1h 30m
2026-05-23 N254SF BJC → BJC May 23, 18:20 UTCMay 23, 19:20 UTC1h 0m
2026-05-23 N254SF - May 23, 16:20 UTCMay 23, 17:05 UTC45m
2026-05-23 N254SF BJC → BJC May 23, 14:00 UTCMay 23, 15:25 UTC1h 25m
2026-05-22 N254SF BJC → BJC May 22, 22:30 UTCMay 22, 23:40 UTC1h 10m
2026-05-22 N254SF BJC → BJC May 22, 19:45 UTCMay 22, 21:15 UTC1h 30m
2026-05-22 N254SF - May 22, 17:25 UTCMay 22, 18:10 UTC45m
2026-05-22 N254SF BJC → BJC May 22, 14:55 UTCMay 22, 16:20 UTC1h 25m
2026-05-21 N254SF BJC → BJC May 21, 21:35 UTCMay 21, 22:35 UTC1h 0m
2026-05-21 N254SF BJC → BJC May 21, 19:00 UTCMay 21, 20:10 UTC1h 10m
2026-05-21 N254SF BJC → BJC May 21, 15:25 UTCMay 21, 16:25 UTC1h 0m
2026-05-21 N254SF BJC → BJC May 21, 12:20 UTCMay 21, 13:45 UTC1h 25m
2026-05-19 N254SF BJC → BJC May 19, 18:50 UTCMay 19, 19:20 UTC30m
2026-05-14 N254SF BJC → BJC May 14, 22:45 UTCMay 14, 23:40 UTC55m
2026-05-14 N254SF BJC → BJC May 14, 17:30 UTCMay 14, 18:35 UTC1h 5m
2026-05-13 N254SF BJC → BJC May 13, 19:00 UTCMay 13, 21:35 UTC2h 35m
2026-05-13 N254SF BJC → BJC May 13, 16:45 UTCMay 13, 18:10 UTC1h 25m
2026-05-13 N254SF BJC → BJC May 13, 13:40 UTCMay 13, 15:10 UTC1h 30m
2026-05-13 N254SF BJC → BJC May 13, 02:35 UTCMay 13, 03:40 UTC1h 5m
2026-05-12 N254SF BJC → BJC May 12, 23:05 UTCMay 12, 23:45 UTC40m
2026-05-12 N254SF BJC → BJC May 12, 19:35 UTCMay 12, 20:55 UTC1h 20m
2026-05-12 N254SF BJC → BJC May 12, 16:35 UTCMay 12, 17:40 UTC1h 5m
2026-05-12 N254SF - May 12, 02:45 UTCMay 12, 03:05 UTC20m
2026-05-11 N254SF BJC → BJC May 11, 20:25 UTCMay 11, 21:25 UTC1h 0m
2026-05-11 N254SF BJC → BJC May 11, 17:30 UTCMay 11, 19:10 UTC1h 40m
2026-05-11 N254SF BJC → BJC May 11, 14:40 UTCMay 11, 15:50 UTC1h 10m
2026-05-10 N254SF BJC → BJC May 10, 21:30 UTCMay 11, 00:00 UTC2h 30m
2026-05-10 N254SF - May 10, 19:35 UTCMay 10, 20:00 UTC25m
2026-05-10 N254SF - May 10, 19:05 UTCMay 10, 19:30 UTC25m
2026-05-09 N254SF BJC → BJC May 9, 19:30 UTCMay 9, 20:30 UTC1h 0m
2026-05-09 N254SF BJC → BJC May 9, 14:15 UTCMay 9, 15:20 UTC1h 5m

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 N254SF page for operator, model, and routing details .

Mode-S A267F0 frequently asked

What is Mode-S code A267F0?
A267F0 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N254SF.
Where is Mode-S A267F0 registered?
Mode-S code A267F0 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 A267F0 broadcasting right now?
No active broadcast right now. Last signal was 7h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A267F0, octal 50463760, decimal 10,643,440.
What flights does A267F0 operate?
Mode-S A267F0 has broadcast 1 distinct callsign, including N254SF.