Apparatus

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sensors Mode-S transponder

A1F427

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N225FX · operated by FLEXJET LLC

Hex
A1F427
Octal
50372047
Decimal
10,613,799
Country
US
Tail
N225FX
No current signal · last broadcast 2h ago
Flights observed
73
Distinct callsigns
3
Country
US
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S A1F427.

Country allocation

The ICAO 24-bit address A1F427 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 3 distinct

Callsign Airline Flights Last seen
LXJ225 - 70 2026-07-07
BBA19T - 2 2026-05-13
CDR19T - 1 2026-05-11

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-07 LXJ225 - Jul 7, 23:00 UTCJul 8, 00:25 UTC1h 25m
2026-07-07 LXJ225 - Jul 7, 17:20 UTCJul 7, 18:10 UTC50m
2026-07-07 LXJ225 - Jul 7, 15:55 UTCJul 7, 16:40 UTC45m
2026-07-06 LXJ225 - Jul 6, 22:40 UTCJul 6, 23:55 UTC1h 15m
2026-07-06 LXJ225 - Jul 6, 14:15 UTCJul 6, 21:10 UTC6h 55m
2026-07-05 LXJ225 - Jul 5, 22:10 UTCJul 5, 23:25 UTC1h 15m
2026-07-05 LXJ225 - Jul 5, 16:45 UTCJul 5, 20:40 UTC3h 55m
2026-07-04 LXJ225 - Jul 4, 16:50 UTCJul 4, 17:55 UTC1h 5m
2026-07-03 LXJ225 - Jul 3, 19:50 UTCJul 3, 20:25 UTC35m
2026-07-02 LXJ225 - Jul 2, 13:20 UTCJul 2, 16:55 UTC3h 35m
2026-07-01 LXJ225 - Jul 1, 19:40 UTCJul 1, 21:25 UTC1h 45m
2026-07-01 LXJ225 - Jul 1, 17:15 UTCJul 1, 18:50 UTC1h 35m
2026-07-01 LXJ225 - Jul 1, 15:00 UTCJul 1, 16:05 UTC1h 5m
2026-07-01 LXJ225 - Jul 1, 12:35 UTCJul 1, 13:35 UTC1h 0m
2026-06-30 LXJ225 - Jun 30, 21:55 UTCJun 30, 22:45 UTC50m
2026-06-30 LXJ225 - Jun 30, 14:55 UTCJun 30, 15:55 UTC1h 0m
2026-06-30 LXJ225 - Jun 30, 12:05 UTCJun 30, 14:05 UTC2h 0m
2026-06-29 LXJ225 - Jun 29, 20:09 UTCJun 29, 20:59 UTC50m
2026-06-29 LXJ225 - Jun 29, 17:40 UTCJun 29, 18:44 UTC1h 5m
2026-06-29 LXJ225 - Jun 29, 15:04 UTCJun 29, 16:15 UTC1h 10m
2026-06-29 LXJ225 - Jun 29, 11:55 UTCJun 29, 13:19 UTC1h 25m
2026-06-28 LXJ225 - Jun 28, 20:29 UTCJun 28, 22:49 UTC2h 20m
2026-06-28 LXJ225 - Jun 28, 18:05 UTCJun 28, 19:34 UTC1h 30m
2026-06-28 LXJ225 - Jun 28, 15:09 UTCJun 28, 16:14 UTC1h 5m
2026-06-28 LXJ225 - Jun 28, 12:50 UTCJun 28, 13:59 UTC1h 10m
2026-06-27 LXJ225 - Jun 27, 15:45 UTCJun 27, 16:55 UTC1h 10m
2026-06-26 LXJ225 - Jun 26, 21:45 UTCJun 27, 00:05 UTC2h 20m
2026-06-26 LXJ225 - Jun 26, 18:49 UTCJun 26, 20:50 UTC2h 0m
2026-06-26 LXJ225 - Jun 26, 16:39 UTCJun 26, 16:54 UTC15m
2026-06-25 LXJ225 IAD → APA Jun 25, 18:59 UTCJun 25, 22:34 UTC3h 35m
2026-06-25 LXJ225 - Jun 25, 16:09 UTCJun 25, 17:05 UTC55m
2026-06-25 LXJ225 - Jun 25, 14:09 UTCJun 25, 15:20 UTC1h 10m
2026-06-25 LXJ225 - Jun 25, 12:19 UTCJun 25, 13:00 UTC40m
2026-06-24 LXJ225 - Jun 24, 17:45 UTCJun 24, 18:29 UTC45m
2026-06-24 LXJ225 - Jun 24, 14:50 UTCJun 24, 16:40 UTC1h 50m
2026-06-24 LXJ225 - Jun 24, 11:39 UTCJun 24, 13:10 UTC1h 30m
2026-06-21 LXJ225 - Jun 21, 21:39 UTCJun 21, 22:40 UTC1h 0m
2026-06-21 LXJ225 - Jun 21, 19:14 UTCJun 21, 20:50 UTC1h 35m
2026-06-21 LXJ225 - Jun 21, 17:05 UTCJun 21, 18:04 UTC1h 0m
2026-06-20 LXJ225 - Jun 20, 22:35 UTCJun 21, 00:29 UTC1h 55m
2026-06-20 LXJ225 - Jun 20, 20:25 UTCJun 20, 20:40 UTC15m
2026-06-19 LXJ225 - Jun 19, 18:39 UTCJun 19, 19:19 UTC40m
2026-06-19 LXJ225 - Jun 19, 14:34 UTCJun 19, 17:49 UTC3h 15m
2026-06-18 LXJ225 - Jun 18, 21:05 UTCJun 19, 02:09 UTC5h 4m
2026-06-18 LXJ225 - Jun 18, 16:40 UTCJun 18, 18:15 UTC1h 35m
2026-06-17 LXJ225 - Jun 17, 16:45 UTCJun 17, 22:05 UTC5h 20m
2026-06-16 LXJ225 - Jun 16, 23:20 UTCJun 16, 23:45 UTC25m
2026-06-16 LXJ225 - Jun 16, 20:45 UTCJun 16, 21:50 UTC1h 5m
2026-06-16 LXJ225 - Jun 16, 18:15 UTCJun 16, 19:40 UTC1h 25m
2026-06-16 LXJ225 - Jun 16, 14:45 UTCJun 16, 16:10 UTC1h 25m

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 N225FX page for operator, model, and routing details .

Mode-S A1F427 frequently asked

What is Mode-S code A1F427?
A1F427 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N225FX.
Where is Mode-S A1F427 registered?
Mode-S code A1F427 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 A1F427 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A1F427, octal 50372047, decimal 10,613,799.
What flights does A1F427 operate?
Mode-S A1F427 has broadcast 3 distinct callsigns, including LXJ225, BBA19T, CDR19T.