Apparatus

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sensors Mode-S transponder

A669FE

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N512MP · AIR TRACTOR AT-504 · operated by FARM AIR FLYING SERVICE LLC

Hex
A669FE
Octal
51464776
Decimal
10,906,110
Country
US
Tail
N512MP
Type
AT5T
No current signal · last broadcast Jul 24, 22:00 UTC
Flights observed
128
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 22:00 UTC

Last known position

Most recent position reported by Mode-S A669FE.

Country allocation

The ICAO 24-bit address A669FE 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
N512MP - 128 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 N512MP - Jul 24, 21:25 UTCJul 24, 22:00 UTC35m
2026-07-24 N512MP - Jul 24, 13:40 UTCJul 24, 21:20 UTC7h 40m
2026-07-23 N512MP - Jul 23, 13:40 UTCJul 23, 15:30 UTC1h 50m
2026-07-22 N512MP - Jul 22, 13:40 UTCJul 22, 21:10 UTC7h 30m
2026-07-21 N512MP - Jul 21, 17:30 UTCJul 21, 21:05 UTC3h 35m
2026-07-20 N512MP - Jul 20, 13:45 UTCJul 20, 16:55 UTC3h 10m
2026-07-17 N512MP - Jul 17, 14:50 UTCJul 17, 15:55 UTC1h 5m
2026-07-17 N512MP - Jul 17, 13:29 UTCJul 17, 14:35 UTC1h 5m
2026-07-16 N512MP - Jul 16, 13:49 UTCJul 16, 21:55 UTC8h 5m
2026-07-15 N512MP - Jul 15, 17:15 UTCJul 15, 18:15 UTC1h 0m
2026-07-15 N512MP - Jul 15, 13:45 UTCJul 15, 17:10 UTC3h 25m
2026-07-14 N512MP - Jul 14, 13:30 UTCJul 14, 17:35 UTC4h 5m
2026-07-13 N512MP - Jul 13, 20:30 UTCJul 13, 21:35 UTC1h 5m
2026-07-13 N512MP - Jul 13, 13:45 UTCJul 13, 20:00 UTC6h 15m
2026-07-06 N512MP - Jul 6, 17:20 UTCJul 6, 17:45 UTC25m
2026-07-06 N512MP - Jul 6, 14:20 UTCJul 6, 17:15 UTC2h 55m
2026-07-06 N512MP - Jul 6, 13:55 UTCJul 6, 14:15 UTC20m
2026-07-03 N512MP - Jul 3, 16:55 UTCJul 3, 18:20 UTC1h 25m
2026-07-03 N512MP - Jul 3, 16:40 UTCJul 3, 16:45 UTC5m
2026-07-03 N512MP - Jul 3, 15:00 UTCJul 3, 16:00 UTC1h 0m
2026-07-03 N512MP - Jul 3, 14:15 UTCJul 3, 14:55 UTC40m
2026-07-03 N512MP - Jul 3, 13:35 UTCJul 3, 14:10 UTC35m
2026-07-02 N512MP - Jul 2, 13:40 UTCJul 2, 18:50 UTC5h 10m
2026-07-01 N512MP - Jul 1, 16:20 UTCJul 1, 18:50 UTC2h 30m
2026-07-01 N512MP - Jul 1, 13:50 UTCJul 1, 16:15 UTC2h 25m
2026-06-30 N512MP - Jun 30, 15:50 UTCJun 30, 19:10 UTC3h 20m
2026-06-30 N512MP - Jun 30, 13:50 UTCJun 30, 15:00 UTC1h 10m
2026-06-29 N512MP - Jun 29, 13:44 UTCJun 29, 15:14 UTC1h 30m
2026-06-26 N512MP - Jun 26, 13:45 UTCJun 26, 15:54 UTC2h 10m
2026-06-25 N512MP - Jun 25, 19:29 UTCJun 25, 21:44 UTC2h 15m
2026-06-25 N512MP - Jun 25, 17:34 UTCJun 25, 19:24 UTC1h 50m
2026-06-25 N512MP - Jun 25, 13:50 UTCJun 25, 16:55 UTC3h 5m
2026-06-24 N512MP - Jun 24, 16:05 UTCJun 24, 18:20 UTC2h 15m
2026-06-23 N512MP - Jun 23, 20:04 UTCJun 23, 23:10 UTC3h 5m
2026-06-23 N512MP - Jun 23, 13:45 UTCJun 23, 19:59 UTC6h 15m
2026-06-22 N512MP - Jun 22, 14:19 UTCJun 22, 18:40 UTC4h 20m
2026-06-20 N512MP - Jun 20, 17:54 UTCJun 20, 19:04 UTC1h 10m
2026-06-20 N512MP - Jun 20, 13:34 UTCJun 20, 15:54 UTC2h 20m
2026-06-19 N512MP - Jun 19, 18:49 UTCJun 19, 19:04 UTC15m
2026-06-19 N512MP - Jun 19, 16:55 UTCJun 19, 18:44 UTC1h 50m
2026-06-19 N512MP - Jun 19, 13:39 UTCJun 19, 15:34 UTC1h 55m
2026-06-18 N512MP - Jun 18, 20:45 UTCJun 18, 21:10 UTC25m
2026-06-18 N512MP - Jun 18, 13:35 UTCJun 18, 20:40 UTC7h 5m
2026-06-17 N512MP - Jun 17, 17:40 UTCJun 17, 18:45 UTC1h 5m
2026-06-17 N512MP - Jun 17, 14:05 UTCJun 17, 17:00 UTC2h 55m
2026-06-16 N512MP - Jun 16, 14:05 UTCJun 16, 20:15 UTC6h 11m
2026-06-15 N512MP - Jun 15, 13:34 UTCJun 15, 19:39 UTC6h 5m
2026-06-14 N512MP - Jun 14, 15:15 UTCJun 14, 15:30 UTC15m
2026-06-13 N512MP - Jun 13, 19:55 UTCJun 13, 21:15 UTC1h 20m
2026-06-13 N512MP - Jun 13, 14:00 UTCJun 13, 19:50 UTC5h 50m

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 N512MP page for operator, model, and routing details .

Mode-S A669FE frequently asked

What is Mode-S code A669FE?
A669FE is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N512MP.
Where is Mode-S A669FE registered?
Mode-S code A669FE 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 A669FE broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 22:00 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A669FE, octal 51464776, decimal 10,906,110.
What flights does A669FE operate?
Mode-S A669FE has broadcast 1 distinct callsign, including N512MP.