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sensors Mode-S transponder

A25EA2

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N25177 · operated by CAREER TRACK 5 LLC

Hex
A25EA2
Octal
50457242
Decimal
10,641,058
Country
US
Tail
N25177
Type
C172
No current signal · last broadcast Jul 25, 18:45 UTC
Flights observed
234
Distinct callsigns
1
Country
US
Last broadcast
Jul 25, 18:45 UTC

Last known position

Most recent position reported by Mode-S A25EA2.

Country allocation

The ICAO 24-bit address A25EA2 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
CXK416 - 234 2026-07-25

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-25 CXK416 - Jul 25, 17:10 UTCJul 25, 18:45 UTC1h 35m
2026-07-25 CXK416 - Jul 25, 14:30 UTCJul 25, 15:55 UTC1h 25m
2026-07-23 CXK416 OGD → OGD Jul 23, 18:25 UTCJul 23, 20:15 UTC1h 50m
2026-07-23 CXK416 OGD → OGD Jul 23, 16:05 UTCJul 23, 17:25 UTC1h 20m
2026-07-23 CXK416 - Jul 23, 14:00 UTCJul 23, 15:20 UTC1h 20m
2026-07-23 CXK416 OGD → OGD Jul 23, 11:30 UTCJul 23, 12:55 UTC1h 25m
2026-07-22 CXK416 - Jul 22, 19:25 UTCJul 22, 20:45 UTC1h 20m
2026-07-22 CXK416 - Jul 22, 16:45 UTCJul 22, 18:35 UTC1h 50m
2026-07-22 CXK416 OGD → OGD Jul 22, 11:45 UTCJul 22, 13:05 UTC1h 20m
2026-07-21 CXK416 OGD → OGD Jul 21, 23:10 UTCJul 22, 00:30 UTC1h 20m
2026-07-21 CXK416 - Jul 21, 21:05 UTCJul 21, 22:30 UTC1h 25m
2026-07-21 CXK416 OGD → OGD Jul 21, 16:30 UTCJul 21, 18:00 UTC1h 30m
2026-07-21 CXK416 OGD → OGD Jul 21, 11:45 UTCJul 21, 13:15 UTC1h 30m
2026-07-20 CXK416 OGD → OGD Jul 20, 23:10 UTCJul 20, 23:55 UTC45m
2026-07-20 CXK416 OGD → OGD Jul 20, 16:10 UTCJul 20, 16:50 UTC40m
2026-07-20 CXK416 - Jul 20, 13:55 UTCJul 20, 15:10 UTC1h 15m
2026-07-20 CXK416 - Jul 20, 11:45 UTCJul 20, 13:15 UTC1h 30m
2026-07-19 CXK416 - Jul 19, 14:10 UTCJul 19, 15:25 UTC1h 15m
2026-07-19 CXK416 - Jul 19, 09:00 UTCJul 19, 10:25 UTC1h 25m
2026-07-18 CXK416 - Jul 18, 20:15 UTCJul 18, 20:55 UTC40m
2026-07-18 CXK416 - Jul 18, 18:40 UTCJul 18, 19:15 UTC35m
2026-07-18 CXK416 - Jul 18, 13:55 UTCJul 18, 14:45 UTC50m
2026-07-18 CXK416 - Jul 18, 11:45 UTCJul 18, 13:05 UTC1h 20m
2026-07-17 CXK416 OGD → OGD Jul 17, 19:55 UTCJul 17, 21:25 UTC1h 30m
2026-07-17 CXK416 OGD → OGD Jul 17, 17:20 UTCJul 17, 18:19 UTC1h 0m
2026-07-17 CXK416 - Jul 17, 14:30 UTCJul 17, 15:55 UTC1h 25m
2026-07-17 CXK416 OGD → OGD Jul 17, 11:50 UTCJul 17, 13:10 UTC1h 20m
2026-07-17 CXK416 - Jul 17, 01:15 UTCJul 17, 02:10 UTC55m
2026-07-16 CXK416 OGD → OGD Jul 16, 22:49 UTCJul 16, 23:49 UTC1h 0m
2026-07-16 CXK416 OGD → OGD Jul 16, 19:55 UTCJul 16, 21:19 UTC1h 25m
2026-07-16 CXK416 OGD → OGD Jul 16, 17:05 UTCJul 16, 18:34 UTC1h 30m
2026-07-16 CXK416 - Jul 16, 14:40 UTCJul 16, 16:00 UTC1h 20m
2026-07-16 CXK416 - Jul 16, 11:50 UTCJul 16, 13:15 UTC1h 25m
2026-07-16 CXK416 - Jul 16, 01:55 UTCJul 16, 03:25 UTC1h 30m
2026-07-15 CXK416 OGD → OGD Jul 15, 23:30 UTCJul 16, 00:10 UTC40m
2026-07-15 CXK416 PVU → OGD Jul 15, 17:10 UTCJul 15, 17:55 UTC45m
2026-07-15 CXK416 - Jul 15, 15:10 UTCJul 15, 16:10 UTC1h 0m
2026-07-15 CXK416 - Jul 15, 12:20 UTCJul 15, 13:05 UTC45m
2026-07-14 CXK416 OGD → OGD Jul 14, 19:20 UTCJul 14, 19:55 UTC35m
2026-07-14 CXK416 - Jul 14, 14:15 UTCJul 14, 15:45 UTC1h 30m
2026-07-13 CXK416 OGD → OGD Jul 13, 19:05 UTCJul 13, 20:25 UTC1h 20m
2026-07-13 CXK416 OGD → OGD Jul 13, 14:35 UTCJul 13, 15:50 UTC1h 15m
2026-07-13 CXK416 - Jul 13, 12:05 UTCJul 13, 12:40 UTC35m
2026-07-12 CXK416 - Jul 12, 01:10 UTCJul 12, 02:30 UTC1h 20m
2026-07-11 CXK416 - Jul 11, 18:30 UTCJul 11, 21:00 UTC2h 30m
2026-07-11 CXK416 OGD → OGD Jul 11, 11:45 UTCJul 11, 13:25 UTC1h 40m
2026-07-11 CXK416 OGD → OGD Jul 11, 05:15 UTCJul 11, 08:10 UTC2h 55m
2026-07-10 CXK416 - Jul 10, 20:40 UTCJul 10, 22:10 UTC1h 30m
2026-07-10 CXK416 - Jul 10, 18:25 UTCJul 10, 19:20 UTC55m
2026-07-10 CXK416 - Jul 10, 16:55 UTCJul 10, 17:45 UTC50m

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 N25177 page for operator, model, and routing details .

Mode-S A25EA2 frequently asked

What is Mode-S code A25EA2?
A25EA2 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N25177.
Where is Mode-S A25EA2 registered?
Mode-S code A25EA2 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 A25EA2 broadcasting right now?
No active broadcast right now. Last signal was Jul 25, 18:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A25EA2, octal 50457242, decimal 10,641,058.
What flights does A25EA2 operate?
Mode-S A25EA2 has broadcast 1 distinct callsign, including CXK416.