Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

A25E35

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N25143 · operated by CAREER TRACK 3 LLC

Hex
A25E35
Octal
50457065
Decimal
10,640,949
Country
US
Tail
N25143
Type
C172
No current signal · last broadcast Jul 26, 18:45 UTC
Flights observed
219
Distinct callsigns
1
Country
US
Last broadcast
Jul 26, 18:45 UTC

Last known position

Most recent position reported by Mode-S A25E35.

Country allocation

The ICAO 24-bit address A25E35 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
CXK190 - 219 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 CXK190 FCM → FCM Jul 26, 17:10 UTCJul 26, 18:40 UTC1h 30m
2026-07-24 CXK190 FCM → FCM Jul 24, 13:15 UTCJul 24, 15:10 UTC1h 55m
2026-07-23 CXK190 FCM → FCM Jul 23, 18:40 UTCJul 23, 20:45 UTC2h 5m
2026-07-23 CXK190 FCM → FCM Jul 23, 13:40 UTCJul 23, 15:10 UTC1h 30m
2026-07-22 CXK190 FCM → FCM Jul 22, 16:20 UTCJul 22, 17:45 UTC1h 25m
2026-07-22 CXK190 FCM → FCM Jul 22, 13:55 UTCJul 22, 15:10 UTC1h 15m
2026-07-22 CXK190 - Jul 22, 12:30 UTCJul 22, 13:05 UTC35m
2026-07-22 CXK190 - Jul 22, 11:30 UTCJul 22, 11:55 UTC25m
2026-07-20 CXK190 FCM → FCM Jul 20, 17:30 UTCJul 20, 18:30 UTC1h 0m
2026-07-18 CXK190 - Jul 18, 14:10 UTCJul 18, 14:55 UTC45m
2026-07-18 CXK190 FCM → RST Jul 18, 12:15 UTCJul 18, 14:05 UTC1h 50m
2026-07-17 CXK190 FCM → FCM Jul 17, 21:00 UTCJul 17, 21:55 UTC55m
2026-07-17 CXK190 FCM → FCM Jul 17, 15:44 UTCJul 17, 17:50 UTC2h 5m
2026-07-17 CXK190 - Jul 17, 11:39 UTCJul 17, 14:10 UTC2h 30m
2026-07-17 CXK190 FCM → FCM Jul 17, 10:44 UTCJul 17, 11:10 UTC25m
2026-07-15 CXK190 FCM → FCM Jul 15, 16:30 UTCJul 15, 17:50 UTC1h 20m
2026-07-15 CXK190 FCM → FCM Jul 15, 13:10 UTCJul 15, 15:05 UTC1h 55m
2026-07-15 CXK190 - Jul 15, 04:20 UTCJul 15, 05:15 UTC55m
2026-07-15 CXK190 FCM → RST Jul 15, 02:50 UTCJul 15, 04:05 UTC1h 15m
2026-07-14 CXK190 FCM → FCM Jul 14, 23:05 UTCJul 15, 00:45 UTC1h 40m
2026-07-14 CXK190 FCM → FCM Jul 14, 15:05 UTCJul 14, 16:40 UTC1h 35m
2026-07-14 CXK190 FCM → FCM Jul 14, 12:20 UTCJul 14, 13:45 UTC1h 25m
2026-07-13 CXK190 FCM → FCM Jul 13, 19:00 UTCJul 13, 21:00 UTC2h 0m
2026-07-11 CXK190 FCM → FCM Jul 11, 02:50 UTCJul 11, 04:20 UTC1h 30m
2026-07-10 CXK190 FCM → FCM Jul 10, 18:55 UTCJul 10, 20:35 UTC1h 40m
2026-07-10 CXK190 FCM → FCM Jul 10, 12:10 UTCJul 10, 12:25 UTC15m
2026-07-10 CXK190 FCM → FCM Jul 10, 11:45 UTCJul 10, 12:05 UTC20m
2026-07-10 CXK190 FCM → FCM Jul 10, 11:20 UTCJul 10, 11:40 UTC20m
2026-07-10 CXK190 FCM → FCM Jul 10, 10:25 UTCJul 10, 10:35 UTC10m
2026-07-10 CXK190 FCM → FCM Jul 10, 10:10 UTCJul 10, 10:15 UTC5m
2026-07-09 CXK190 FCM → FCM Jul 9, 19:20 UTCJul 9, 21:50 UTC2h 30m
2026-07-07 CXK190 FCM → FCM Jul 7, 12:55 UTCJul 7, 14:30 UTC1h 35m
2026-07-07 CXK190 FCM → FCM Jul 7, 11:35 UTCJul 7, 12:00 UTC25m
2026-07-06 CXK190 - Jul 6, 23:00 UTCJul 6, 23:10 UTC10m
2026-07-06 CXK190 FCM → FCM Jul 6, 22:35 UTCJul 6, 22:50 UTC15m
2026-07-06 CXK190 FCM → FCM Jul 6, 22:20 UTCJul 6, 22:30 UTC10m
2026-07-06 CXK190 FCM → FCM Jul 6, 21:35 UTCJul 6, 22:15 UTC40m
2026-07-06 CXK190 FCM → FCM Jul 6, 18:15 UTCJul 6, 19:50 UTC1h 35m
2026-07-06 CXK190 FCM → FCM Jul 6, 15:50 UTCJul 6, 16:35 UTC45m
2026-07-06 CXK190 - Jul 6, 11:25 UTCJul 6, 14:00 UTC2h 35m
2026-07-03 CXK190 - Jul 3, 15:05 UTCJul 3, 16:50 UTC1h 45m
2026-07-03 CXK190 - Jul 3, 12:30 UTCJul 3, 14:25 UTC1h 55m
2026-07-02 CXK190 - Jul 2, 21:10 UTCJul 2, 23:15 UTC2h 5m
2026-07-02 CXK190 DPA → DPA Jul 2, 18:35 UTCJul 2, 20:00 UTC1h 25m
2026-07-01 CXK190 - Jul 1, 21:35 UTCJul 1, 23:15 UTC1h 40m
2026-07-01 CXK190 - Jul 1, 18:50 UTCJul 1, 20:30 UTC1h 40m
2026-07-01 CXK190 - Jul 1, 13:50 UTCJul 1, 15:20 UTC1h 30m
2026-06-30 CXK190 - Jun 30, 17:45 UTCJun 30, 19:00 UTC1h 15m
2026-06-30 CXK190 - Jun 30, 15:45 UTCJun 30, 16:30 UTC45m
2026-06-30 CXK190 - Jun 30, 11:30 UTCJun 30, 12:45 UTC1h 15m

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 N25143 page for operator, model, and routing details .

Mode-S A25E35 frequently asked

What is Mode-S code A25E35?
A25E35 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N25143.
Where is Mode-S A25E35 registered?
Mode-S code A25E35 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 A25E35 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 18:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A25E35, octal 50457065, decimal 10,640,949.
What flights does A25E35 operate?
Mode-S A25E35 has broadcast 1 distinct callsign, including CXK190.