Apparatus

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sensors Mode-S transponder

A25E78

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N25160 · operated by CAREER TRACK 4 LLC

Hex
A25E78
Octal
50457170
Decimal
10,641,016
Country
US
Tail
N25160
Type
C172
No current signal · last broadcast 9h ago
Flights observed
150
Distinct callsigns
1
Country
US
Last broadcast
9h ago

Last known position

Most recent position reported by Mode-S A25E78.

Country allocation

The ICAO 24-bit address A25E78 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
CXK401 - 150 2026-07-17

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-17 CXK401 - Jul 17, 22:20 UTCJul 17, 22:35 UTC15m
2026-07-17 CXK401 - Jul 17, 20:15 UTCJul 17, 21:39 UTC1h 25m
2026-07-17 CXK401 - Jul 17, 17:50 UTCJul 17, 18:34 UTC45m
2026-07-17 CXK401 - Jul 17, 16:19 UTCJul 17, 16:29 UTC10m
2026-07-17 CXK401 - Jul 17, 15:29 UTCJul 17, 15:40 UTC10m
2026-07-17 CXK401 - Jul 17, 14:15 UTCJul 17, 14:55 UTC40m
2026-07-13 CXK401 - Jul 13, 21:40 UTCJul 13, 22:25 UTC45m
2026-07-13 CXK401 - Jul 13, 20:15 UTCJul 13, 20:35 UTC20m
2026-07-13 CXK401 - Jul 13, 18:30 UTCJul 13, 18:50 UTC20m
2026-07-10 CXK401 - Jul 10, 17:00 UTCJul 10, 18:00 UTC1h 0m
2026-07-10 CXK401 - Jul 10, 14:25 UTCJul 10, 15:20 UTC55m
2026-07-10 CXK401 - Jul 10, 02:15 UTCJul 10, 03:00 UTC45m
2026-07-09 CXK401 - Jul 9, 22:40 UTCJul 9, 22:50 UTC10m
2026-07-09 CXK401 - Jul 9, 19:20 UTCJul 9, 19:55 UTC35m
2026-07-09 CXK401 - Jul 9, 16:40 UTCJul 9, 17:40 UTC1h 0m
2026-07-09 CXK401 - Jul 9, 15:10 UTCJul 9, 15:30 UTC20m
2026-07-09 CXK401 - Jul 9, 13:55 UTCJul 9, 14:20 UTC25m
2026-07-08 CXK401 - Jul 8, 21:30 UTCJul 8, 22:45 UTC1h 15m
2026-07-08 CXK401 - Jul 8, 19:05 UTCJul 8, 20:00 UTC55m
2026-07-08 CXK401 - Jul 8, 16:20 UTCJul 8, 17:25 UTC1h 5m
2026-07-07 CXK401 - Jul 7, 18:30 UTCJul 7, 19:55 UTC1h 25m
2026-07-06 CXK401 - Jul 6, 21:20 UTCJul 6, 23:35 UTC2h 15m
2026-07-05 CXK401 - Jul 5, 21:45 UTCJul 5, 23:25 UTC1h 40m
2026-07-05 CXK401 - Jul 5, 12:25 UTCJul 5, 13:00 UTC35m
2026-07-04 CXK401 - Jul 4, 00:40 UTCJul 4, 00:50 UTC10m
2026-07-03 CXK401 - Jul 3, 15:35 UTCJul 3, 15:55 UTC20m
2026-07-03 CXK401 - Jul 3, 14:25 UTCJul 3, 14:45 UTC20m
2026-06-30 CXK401 - Jun 30, 11:25 UTCJun 30, 12:50 UTC1h 25m
2026-06-28 CXK401 - Jun 28, 23:20 UTCJun 28, 23:29 UTC10m
2026-06-27 CXK401 - Jun 27, 16:49 UTCJun 27, 18:54 UTC2h 5m
2026-06-27 CXK401 - Jun 27, 04:24 UTCJun 27, 05:10 UTC45m
2026-06-27 CXK401 - Jun 27, 02:50 UTCJun 27, 03:25 UTC35m
2026-06-26 CXK401 - Jun 26, 16:39 UTCJun 26, 17:44 UTC1h 5m
2026-06-26 CXK401 - Jun 26, 13:49 UTCJun 26, 14:19 UTC30m
2026-06-26 CXK401 - Jun 26, 00:24 UTCJun 26, 00:35 UTC10m
2026-06-25 CXK401 - Jun 25, 22:10 UTCJun 25, 23:34 UTC1h 25m
2026-06-24 CXK401 - Jun 24, 23:10 UTCJun 25, 00:40 UTC1h 30m
2026-06-24 CXK401 - Jun 24, 18:50 UTCJun 24, 19:04 UTC15m
2026-06-24 CXK401 - Jun 24, 16:50 UTCJun 24, 17:34 UTC45m
2026-06-24 CXK401 - Jun 24, 00:34 UTCJun 24, 00:55 UTC20m
2026-06-23 CXK401 - Jun 23, 21:45 UTCJun 23, 22:05 UTC20m
2026-06-23 CXK401 - Jun 23, 17:39 UTCJun 23, 18:14 UTC35m
2026-06-23 CXK401 - Jun 23, 16:39 UTCJun 23, 16:59 UTC20m
2026-06-23 CXK401 - Jun 23, 00:50 UTCJun 23, 01:00 UTC10m
2026-06-22 CXK401 - Jun 22, 21:30 UTCJun 22, 22:05 UTC35m
2026-06-22 CXK401 - Jun 22, 20:10 UTCJun 22, 20:34 UTC25m
2026-06-18 CXK401 - Jun 18, 21:05 UTCJun 18, 21:45 UTC40m
2026-06-18 CXK401 - Jun 18, 16:15 UTCJun 18, 18:40 UTC2h 25m
2026-06-18 CXK401 - Jun 18, 00:05 UTCJun 18, 00:20 UTC15m
2026-06-17 CXK401 - Jun 17, 22:10 UTCJun 17, 22:20 UTC10m

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 N25160 page for operator, model, and routing details .

Mode-S A25E78 frequently asked

What is Mode-S code A25E78?
A25E78 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N25160.
Where is Mode-S A25E78 registered?
Mode-S code A25E78 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 A25E78 broadcasting right now?
No active broadcast right now. Last signal was 9h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A25E78, octal 50457170, decimal 10,641,016.
What flights does A25E78 operate?
Mode-S A25E78 has broadcast 1 distinct callsign, including CXK401.