Apparatus

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sensors Mode-S transponder

A25570

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N25D · operated by STEVES LANDAVATOR SERVICE LLC

Hex
A25570
Octal
50452560
Decimal
10,638,704
Country
US
Tail
N25D
Type
P28A
No current signal · last broadcast 8h ago
Flights observed
75
Distinct callsigns
1
Country
US
Last broadcast
8h ago

Last known position

Most recent position reported by Mode-S A25570.

Country allocation

The ICAO 24-bit address A25570 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
N25D - 75 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 N25D - Jul 14, 02:00 UTCJul 14, 03:25 UTC1h 25m
2026-07-13 N25D RDG → RDG Jul 13, 17:55 UTCJul 13, 19:00 UTC1h 5m
2026-07-11 N25D - Jul 11, 18:15 UTCJul 11, 19:35 UTC1h 20m
2026-07-10 N25D RDG → RDG Jul 10, 14:20 UTCJul 10, 14:50 UTC30m
2026-07-10 N25D - Jul 10, 03:00 UTCJul 10, 03:30 UTC30m
2026-07-10 N25D - Jul 10, 02:05 UTCJul 10, 02:55 UTC50m
2026-07-09 N25D - Jul 9, 02:10 UTCJul 9, 02:40 UTC30m
2026-07-09 N25D RDG → RDG Jul 9, 01:55 UTCJul 9, 02:05 UTC10m
2026-07-08 N25D RDG → RDG Jul 8, 18:05 UTCJul 8, 19:20 UTC1h 15m
2026-07-04 N25D RDG → RDG Jul 4, 15:25 UTCJul 4, 16:55 UTC1h 30m
2026-07-03 N25D RDG → RDG Jul 3, 18:30 UTCJul 3, 20:00 UTC1h 30m
2026-07-03 N25D RDG → RDG Jul 3, 16:00 UTCJul 3, 16:50 UTC50m
2026-07-03 N25D - Jul 3, 03:15 UTCJul 3, 04:45 UTC1h 30m
2026-07-02 N25D RDG → RDG Jul 2, 23:10 UTCJul 3, 00:45 UTC1h 35m
2026-06-30 N25D RDG → RDG Jun 30, 18:40 UTCJun 30, 18:55 UTC15m
2026-06-30 N25D - Jun 30, 17:50 UTCJun 30, 18:35 UTC45m
2026-06-30 N25D - Jun 30, 13:40 UTCJun 30, 15:20 UTC1h 40m
2026-06-29 N25D - Jun 29, 17:40 UTCJun 29, 19:20 UTC1h 40m
2026-06-27 N25D RDG → RDG Jun 27, 14:14 UTCJun 27, 15:30 UTC1h 15m
2026-06-26 N25D - Jun 26, 15:45 UTCJun 26, 16:44 UTC1h 0m
2026-06-26 N25D RDG → RDG Jun 26, 13:30 UTCJun 26, 14:39 UTC1h 10m
2026-06-25 N25D - Jun 25, 18:45 UTCJun 25, 20:19 UTC1h 35m
2026-06-25 N25D RDG → RDG Jun 25, 16:29 UTCJun 25, 17:14 UTC45m
2026-06-25 N25D RDG → RDG Jun 25, 13:35 UTCJun 25, 14:39 UTC1h 5m
2026-06-24 N25D RDG → RDG Jun 24, 21:00 UTCJun 24, 22:45 UTC1h 45m
2026-06-24 N25D RDG → RDG Jun 24, 17:10 UTCJun 24, 17:59 UTC50m
2026-06-24 N25D RDG → RDG Jun 24, 13:34 UTCJun 24, 15:24 UTC1h 50m
2026-06-19 N25D - Jun 19, 15:59 UTCJun 19, 16:59 UTC1h 0m
2026-06-17 N25D RDG → RDG Jun 17, 16:40 UTCJun 17, 17:30 UTC50m
2026-06-16 N25D RDG → RDG Jun 16, 14:45 UTCJun 16, 15:55 UTC1h 10m
2026-06-12 N25D - Jun 12, 19:20 UTCJun 12, 20:00 UTC40m
2026-06-11 N25D - Jun 11, 15:15 UTCJun 11, 16:10 UTC55m
2026-06-09 N25D RDG → RDG Jun 9, 21:00 UTCJun 9, 21:35 UTC35m
2026-06-09 N25D - Jun 9, 20:45 UTCJun 9, 20:55 UTC10m
2026-06-03 N25D - Jun 3, 21:10 UTCJun 3, 22:45 UTC1h 35m
2026-06-03 N25D RDG → RDG Jun 3, 17:35 UTCJun 3, 18:45 UTC1h 10m
2026-06-03 N25D RDG → RDG Jun 3, 15:45 UTCJun 3, 16:00 UTC15m
2026-06-02 N25D - Jun 2, 19:15 UTCJun 2, 20:20 UTC1h 5m
2026-06-02 N25D RDG → BLM Jun 2, 18:10 UTCJun 2, 19:05 UTC55m
2026-06-02 N25D RDG → RDG Jun 2, 15:05 UTCJun 2, 17:20 UTC2h 15m
2026-06-01 N25D RDG → RDG Jun 1, 20:35 UTCJun 1, 21:35 UTC1h 0m
2026-05-29 N25D RDG → RDG May 29, 13:50 UTCMay 29, 15:25 UTC1h 35m
2026-05-29 N25D RDG → RDG May 29, 04:00 UTCMay 29, 05:15 UTC1h 15m
2026-05-27 N25D - May 27, 21:20 UTCMay 27, 22:40 UTC1h 20m
2026-05-26 N25D - May 26, 20:50 UTCMay 26, 21:44 UTC55m
2026-05-22 N25D - May 22, 19:50 UTCMay 22, 21:10 UTC1h 20m
2026-05-22 N25D - May 22, 12:10 UTCMay 22, 12:20 UTC10m
2026-05-22 N25D - May 22, 11:45 UTCMay 22, 12:05 UTC20m
2026-05-22 N25D RDG → RDG May 22, 11:10 UTCMay 22, 11:20 UTC10m
2026-05-22 N25D - May 22, 10:55 UTCMay 22, 11:00 UTC5m

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 N25D page for operator, model, and routing details .

Mode-S A25570 frequently asked

What is Mode-S code A25570?
A25570 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N25D.
Where is Mode-S A25570 registered?
Mode-S code A25570 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 A25570 broadcasting right now?
No active broadcast right now. Last signal was 8h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A25570, octal 50452560, decimal 10,638,704.
What flights does A25570 operate?
Mode-S A25570 has broadcast 1 distinct callsign, including N25D.