Apparatus

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sensors Mode-S transponder

A654F9

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N507LP · operated by AJF ENTERPRISES LLC, US FLIGHT CO

Hex
A654F9
Octal
51452371
Decimal
10,900,729
Country
US
Tail
N507LP
Type
PIAT
No current signal · last broadcast 2d ago
Flights observed
220
Distinct callsigns
1
Country
US
Last broadcast
2d ago

Last known position

Most recent position reported by Mode-S A654F9.

Country allocation

The ICAO 24-bit address A654F9 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
N507LP - 220 2026-07-23

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-23 N507LP - Jul 23, 22:30 UTCJul 23, 23:50 UTC1h 20m
2026-07-23 N507LP - Jul 23, 18:25 UTCJul 23, 20:55 UTC2h 30m
2026-07-23 N507LP - Jul 23, 16:30 UTCJul 23, 17:40 UTC1h 10m
2026-07-23 N507LP DSM → DSM Jul 23, 02:40 UTCJul 23, 03:45 UTC1h 5m
2026-07-22 N507LP - Jul 22, 22:35 UTCJul 22, 23:35 UTC1h 0m
2026-07-22 N507LP - Jul 22, 20:10 UTCJul 22, 21:40 UTC1h 30m
2026-07-17 N507LP - Jul 17, 16:34 UTCJul 17, 17:20 UTC45m
2026-07-16 N507LP DSM → DSM Jul 16, 22:45 UTCJul 16, 23:44 UTC1h 0m
2026-07-16 N507LP - Jul 16, 20:45 UTCJul 16, 22:05 UTC1h 20m
2026-07-16 N507LP DSM → DSM Jul 16, 16:35 UTCJul 16, 17:25 UTC50m
2026-07-16 N507LP - Jul 16, 15:40 UTCJul 16, 15:49 UTC10m
2026-07-16 N507LP - Jul 16, 14:29 UTCJul 16, 14:50 UTC20m
2026-07-16 N507LP DSM → DSM Jul 16, 02:10 UTCJul 16, 03:05 UTC55m
2026-07-15 N507LP - Jul 15, 16:40 UTCJul 15, 18:00 UTC1h 20m
2026-07-14 N507LP DSM → DSM Jul 14, 22:40 UTCJul 14, 23:55 UTC1h 14m
2026-07-14 N507LP - Jul 14, 18:25 UTCJul 14, 20:00 UTC1h 35m
2026-07-14 N507LP DSM → DSM Jul 14, 16:35 UTCJul 14, 17:45 UTC1h 10m
2026-07-14 N507LP - Jul 14, 14:30 UTCJul 14, 15:45 UTC1h 15m
2026-07-14 N507LP DSM → DSM Jul 14, 12:35 UTCJul 14, 13:55 UTC1h 20m
2026-07-13 N507LP DSM → DSM Jul 13, 22:25 UTCJul 13, 23:50 UTC1h 25m
2026-07-13 N507LP - Jul 13, 18:30 UTCJul 13, 19:55 UTC1h 25m
2026-07-13 N507LP - Jul 13, 16:30 UTCJul 13, 17:20 UTC50m
2026-07-12 N507LP - Jul 12, 18:45 UTCJul 12, 19:45 UTC1h 0m
2026-07-12 N507LP DSM → DSM Jul 12, 16:25 UTCJul 12, 17:30 UTC1h 5m
2026-07-12 N507LP - Jul 12, 14:50 UTCJul 12, 15:50 UTC1h 0m
2026-07-11 N507LP - Jul 11, 21:40 UTCJul 11, 23:35 UTC1h 55m
2026-07-11 N507LP - Jul 11, 17:25 UTCJul 11, 18:50 UTC1h 25m
2026-07-11 N507LP - Jul 11, 14:15 UTCJul 11, 15:15 UTC1h 0m
2026-07-11 N507LP - Jul 11, 12:35 UTCJul 11, 13:40 UTC1h 5m
2026-07-10 N507LP DSM → DSM Jul 10, 20:35 UTCJul 10, 21:10 UTC35m
2026-07-10 N507LP - Jul 10, 17:00 UTCJul 10, 17:50 UTC50m
2026-07-10 N507LP DSM → DSM Jul 10, 14:45 UTCJul 10, 16:05 UTC1h 20m
2026-07-10 N507LP - Jul 10, 12:40 UTCJul 10, 13:50 UTC1h 10m
2026-07-09 N507LP - Jul 9, 22:40 UTCJul 9, 23:45 UTC1h 5m
2026-07-09 N507LP - Jul 9, 18:30 UTCJul 9, 19:30 UTC1h 0m
2026-07-09 N507LP - Jul 9, 16:30 UTCJul 9, 17:35 UTC1h 5m
2026-07-09 N507LP - Jul 9, 15:35 UTCJul 9, 15:50 UTC15m
2026-07-09 N507LP - Jul 9, 15:20 UTCJul 9, 15:30 UTC10m
2026-07-09 N507LP - Jul 9, 14:50 UTCJul 9, 15:05 UTC15m
2026-07-09 N507LP - Jul 9, 14:30 UTCJul 9, 14:45 UTC15m
2026-07-08 N507LP DSM → DSM Jul 8, 22:35 UTCJul 8, 23:45 UTC1h 10m
2026-07-08 N507LP - Jul 8, 20:40 UTCJul 8, 21:45 UTC1h 5m
2026-07-08 N507LP DSM → DSM Jul 8, 16:45 UTCJul 8, 17:40 UTC55m
2026-07-07 N507LP DSM → DSM Jul 7, 18:50 UTCJul 7, 19:50 UTC1h 0m
2026-07-07 N507LP - Jul 7, 16:35 UTCJul 7, 17:50 UTC1h 15m
2026-07-07 N507LP - Jul 7, 14:40 UTCJul 7, 15:45 UTC1h 5m
2026-07-06 N507LP DSM → DSM Jul 6, 22:50 UTCJul 6, 23:45 UTC55m
2026-07-06 N507LP - Jul 6, 20:35 UTCJul 6, 21:55 UTC1h 20m
2026-07-06 N507LP - Jul 6, 19:00 UTCJul 6, 19:50 UTC50m
2026-07-06 N507LP - Jul 6, 18:40 UTCJul 6, 18:55 UTC15m

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 N507LP page for operator, model, and routing details .

Mode-S A654F9 frequently asked

What is Mode-S code A654F9?
A654F9 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N507LP.
Where is Mode-S A654F9 registered?
Mode-S code A654F9 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 A654F9 broadcasting right now?
No active broadcast right now. Last signal was 2d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A654F9, octal 51452371, decimal 10,900,729.
What flights does A654F9 operate?
Mode-S A654F9 has broadcast 1 distinct callsign, including N507LP.