Apparatus

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sensors Mode-S transponder

A2CF40

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N280P · CESSNA 680 Citation Latitude · operated by CESSNA LATITUDE 680A-0059 LLC

Hex
A2CF40
Octal
50547500
Decimal
10,669,888
Country
US
Tail
N280P
Type
C68A
No current signal · last broadcast Jul 24, 16:40 UTC
Flights observed
124
Distinct callsigns
1
Country
US
Last broadcast
Jul 24, 16:40 UTC

Last known position

Most recent position reported by Mode-S A2CF40.

Country allocation

The ICAO 24-bit address A2CF40 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
KPO280 - 124 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 KPO280 - Jul 24, 15:15 UTCJul 24, 16:40 UTC1h 25m
2026-07-24 KPO280 - Jul 24, 12:50 UTCJul 24, 13:25 UTC35m
2026-07-21 KPO280 - Jul 21, 12:45 UTCJul 21, 14:10 UTC1h 25m
2026-07-18 KPO280 - Jul 18, 16:45 UTCJul 18, 17:25 UTC40m
2026-07-16 KPO280 - Jul 16, 14:10 UTCJul 16, 14:45 UTC35m
2026-07-15 KPO280 - Jul 15, 14:50 UTCJul 15, 15:50 UTC1h 0m
2026-07-15 KPO280 DAL → ATL Jul 15, 12:20 UTCJul 15, 14:05 UTC1h 45m
2026-07-15 KPO280 - Jul 15, 09:40 UTCJul 15, 10:20 UTC40m
2026-07-14 KPO280 - Jul 14, 16:10 UTCJul 14, 19:05 UTC2h 55m
2026-07-14 KPO280 TEB → HAR Jul 14, 14:50 UTCJul 14, 15:15 UTC25m
2026-07-12 KPO280 - Jul 12, 05:40 UTCJul 12, 08:01 UTC2h 20m
2026-07-11 KPO280 - Jul 11, 20:25 UTCJul 11, 23:05 UTC2h 40m
2026-07-10 KPO280 - Jul 10, 20:00 UTCJul 10, 20:55 UTC55m
2026-07-10 KPO280 - Jul 10, 16:05 UTCJul 10, 19:00 UTC2h 55m
2026-07-10 KPO280 - Jul 10, 14:55 UTCJul 10, 15:25 UTC30m
2026-07-08 KPO280 - Jul 8, 18:20 UTCJul 8, 18:50 UTC30m
2026-07-05 KPO280 - Jul 5, 17:10 UTCJul 5, 19:30 UTC2h 20m
2026-07-04 KPO280 - Jul 4, 16:15 UTCJul 4, 17:50 UTC1h 35m
2026-06-27 KPO280 - Jun 27, 18:49 UTCJun 27, 20:09 UTC1h 20m
2026-06-27 KPO280 - Jun 27, 15:39 UTCJun 27, 17:39 UTC2h 0m
2026-06-26 KPO280 - Jun 26, 20:44 UTCJun 26, 21:45 UTC1h 0m
2026-06-24 KPO280 - Jun 24, 20:54 UTCJun 24, 22:55 UTC2h 0m
2026-06-20 KPO280 - Jun 20, 16:55 UTCJun 20, 17:59 UTC1h 5m
2026-06-20 KPO280 - Jun 20, 14:29 UTCJun 20, 16:19 UTC1h 50m
2026-06-19 KPO280 - Jun 19, 16:29 UTCJun 19, 17:49 UTC1h 20m
2026-06-19 KPO280 - Jun 19, 14:39 UTCJun 19, 15:59 UTC1h 20m
2026-06-19 KPO280 - Jun 19, 12:25 UTCJun 19, 13:24 UTC1h 0m
2026-06-18 KPO280 - Jun 18, 16:10 UTCJun 18, 18:30 UTC2h 20m
2026-06-17 KPO280 - Jun 17, 21:15 UTCJun 17, 21:30 UTC15m
2026-06-17 KPO280 - Jun 17, 17:45 UTCJun 17, 20:20 UTC2h 35m
2026-06-16 KPO280 - Jun 16, 13:15 UTCJun 16, 15:45 UTC2h 30m
2026-06-15 KPO280 - Jun 15, 17:30 UTCJun 15, 18:20 UTC50m
2026-06-15 KPO280 - Jun 15, 14:34 UTCJun 15, 16:40 UTC2h 5m
2026-06-14 KPO280 IAD → BED Jun 14, 19:30 UTCJun 14, 20:35 UTC1h 5m
2026-06-14 KPO280 - Jun 14, 15:55 UTCJun 14, 18:10 UTC2h 15m
2026-06-14 KPO280 - Jun 14, 13:40 UTCJun 14, 14:10 UTC30m
2026-06-14 KPO280 IAD → TPA Jun 14, 10:55 UTCJun 14, 12:55 UTC2h 0m
2026-06-13 KPO280 - Jun 13, 17:45 UTCJun 13, 19:10 UTC1h 25m
2026-06-13 KPO280 SRQ → HYA Jun 13, 14:05 UTCJun 13, 16:50 UTC2h 45m
2026-06-13 KPO280 - Jun 13, 12:10 UTCJun 13, 12:35 UTC25m
2026-06-12 KPO280 BED → MCO Jun 12, 14:45 UTCJun 12, 17:25 UTC2h 40m
2026-06-11 KPO280 IAD → BED Jun 11, 17:10 UTCJun 11, 18:15 UTC1h 5m
2026-06-11 KPO280 - Jun 11, 12:35 UTCJun 11, 13:15 UTC40m
2026-06-10 KPO280 - Jun 10, 21:50 UTCJun 10, 22:45 UTC55m
2026-06-10 KPO280 - Jun 10, 15:30 UTCJun 10, 17:05 UTC1h 35m
2026-06-10 KPO280 - Jun 10, 00:20 UTCJun 10, 01:55 UTC1h 35m
2026-06-08 KPO280 - Jun 8, 10:00 UTCJun 8, 11:55 UTC1h 55m
2026-06-07 KPO280 - Jun 7, 20:30 UTCJun 7, 21:10 UTC40m
2026-06-07 KPO280 - Jun 7, 18:15 UTCJun 7, 19:35 UTC1h 20m
2026-06-07 KPO280 - Jun 7, 16:35 UTCJun 7, 17:30 UTC55m

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 N280P page for operator, model, and routing details .

Mode-S A2CF40 frequently asked

What is Mode-S code A2CF40?
A2CF40 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N280P.
Where is Mode-S A2CF40 registered?
Mode-S code A2CF40 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 A2CF40 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 16:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2CF40, octal 50547500, decimal 10,669,888.
What flights does A2CF40 operate?
Mode-S A2CF40 has broadcast 1 distinct callsign, including KPO280.