Apparatus

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sensors Mode-S transponder

A25E57

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N25152 · operated by CAREER TRACK 4 LLC

Hex
A25E57
Octal
50457127
Decimal
10,640,983
Country
US
Tail
N25152
Type
C172
No current signal · last broadcast 1d ago
Flights observed
112
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A25E57.

Country allocation

The ICAO 24-bit address A25E57 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
CXK238 - 111 2026-07-12

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-12 CXK238 - Jul 12, 14:35 UTCJul 12, 15:01 UTC25m
2026-07-12 CXK238 - Jul 12, 11:20 UTCJul 12, 12:01 UTC40m
2026-07-09 CXK238 - Jul 9, 20:30 UTCJul 9, 22:55 UTC2h 25m
2026-07-09 CXK238 - Jul 9, 18:25 UTCJul 9, 19:10 UTC45m
2026-07-09 CXK238 - Jul 9, 15:05 UTCJul 9, 16:00 UTC55m
2026-07-08 CXK238 - Jul 8, 20:10 UTCJul 8, 21:40 UTC1h 30m
2026-07-08 CXK238 - Jul 8, 17:35 UTCJul 8, 19:05 UTC1h 30m
2026-07-08 CXK238 - Jul 8, 12:45 UTCJul 8, 15:10 UTC2h 25m
2026-07-07 CXK238 - Jul 7, 20:55 UTCJul 7, 21:10 UTC15m
2026-07-07 CXK238 - Jul 7, 19:55 UTCJul 7, 20:15 UTC20m
2026-07-06 CXK238 - Jul 6, 18:55 UTCJul 6, 19:10 UTC15m
2026-07-06 CXK238 - Jul 6, 15:55 UTCJul 6, 16:05 UTC10m
2026-07-06 CXK238 - Jul 6, 14:25 UTCJul 6, 14:40 UTC15m
2026-07-06 CXK238 - Jul 6, 01:35 UTCJul 6, 01:50 UTC15m
2026-07-06 CXK238 - Jul 6, 00:05 UTCJul 6, 00:45 UTC40m
2026-07-03 CXK238 - Jul 3, 16:35 UTCJul 3, 17:05 UTC30m
2026-07-02 CXK238 - Jul 2, 15:30 UTCJul 2, 15:40 UTC10m
2026-07-01 CXK238 - Jul 1, 22:10 UTCJul 1, 22:30 UTC20m
2026-07-01 CXK238 - Jul 1, 15:00 UTCJul 1, 15:35 UTC35m
2026-06-30 CXK238 - Jun 30, 22:20 UTCJun 30, 22:30 UTC10m
2026-06-30 CXK238 - Jun 30, 03:10 UTCJun 30, 05:00 UTC1h 50m
2026-06-30 CXK238 - Jun 30, 00:00 UTCJun 30, 01:09 UTC1h 10m
2026-06-29 CXK238 - Jun 29, 20:15 UTCJun 29, 21:50 UTC1h 35m
2026-06-29 CXK238 - Jun 29, 17:19 UTCJun 29, 19:09 UTC1h 50m
2026-06-28 CXK238 - Jun 28, 14:19 UTCJun 28, 14:45 UTC25m
2026-06-26 CXK238 - Jun 26, 20:29 UTCJun 26, 21:10 UTC40m
2026-06-26 CXK238 - Jun 26, 17:15 UTCJun 26, 17:25 UTC10m
2026-06-26 CXK238 - Jun 26, 15:29 UTCJun 26, 16:05 UTC35m
2026-06-26 CXK238 - Jun 26, 00:20 UTCJun 26, 01:20 UTC1h 0m
2026-06-25 CXK238 - Jun 25, 23:49 UTCJun 26, 00:10 UTC20m
2026-06-24 CXK238 - Jun 24, 22:29 UTCJun 24, 22:49 UTC20m
2026-06-24 CXK238 - Jun 24, 13:54 UTCJun 24, 14:24 UTC30m
2026-06-24 CXK238 - Jun 24, 04:10 UTCJun 24, 04:50 UTC40m
2026-06-24 CXK238 - Jun 24, 02:54 UTCJun 24, 03:10 UTC15m
2026-06-24 CXK238 - Jun 24, 00:59 UTCJun 24, 01:14 UTC15m
2026-06-23 CXK238 - Jun 23, 23:39 UTCJun 23, 23:55 UTC15m
2026-06-23 CXK238 - Jun 23, 21:49 UTCJun 23, 22:29 UTC40m
2026-06-23 CXK238 - Jun 23, 19:39 UTCJun 23, 19:50 UTC10m
2026-06-23 CXK238 - Jun 23, 17:59 UTCJun 23, 18:10 UTC10m
2026-06-23 CXK238 - Jun 23, 16:39 UTCJun 23, 16:50 UTC10m
2026-06-22 CXK238 - Jun 22, 20:10 UTCJun 22, 20:30 UTC20m
2026-06-22 CXK238 - Jun 22, 19:09 UTCJun 22, 19:19 UTC10m
2026-06-21 CXK238 - Jun 21, 20:29 UTCJun 21, 20:40 UTC10m
2026-06-14 CXK238 - Jun 14, 13:55 UTCJun 14, 14:05 UTC10m
2026-06-12 CXK238 - Jun 12, 17:55 UTCJun 12, 19:15 UTC1h 20m
2026-06-11 CXK238 - Jun 11, 22:25 UTCJun 11, 22:50 UTC25m
2026-06-11 CXK238 - Jun 11, 21:10 UTCJun 11, 21:25 UTC15m
2026-06-11 CXK238 - Jun 11, 18:50 UTCJun 11, 19:35 UTC45m
2026-06-11 CXK238 - Jun 11, 17:35 UTCJun 11, 17:50 UTC15m
2026-06-11 CXK238 - Jun 11, 15:25 UTCJun 11, 16:10 UTC45m

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 N25152 page for operator, model, and routing details .

Mode-S A25E57 frequently asked

What is Mode-S code A25E57?
A25E57 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N25152.
Where is Mode-S A25E57 registered?
Mode-S code A25E57 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 A25E57 broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A25E57, octal 50457127, decimal 10,640,983.
What flights does A25E57 operate?
Mode-S A25E57 has broadcast 1 distinct callsign, including CXK238.