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sensors Mode-S transponder

A9025B

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N68RF · BEECHCRAFT Super King Air 350 · operated by NATIONAL OCEANIC & ATMOSPHERIC ADMIN, UNITED STATES DEPT OF COMMERCE

Hex
A9025B
Octal
52201133
Decimal
11,076,187
Country
US
Tail
N68RF
Type
B350
No current signal · last broadcast 23d ago
Flights observed
122
Distinct callsigns
1
Country
US
Last broadcast
23d ago

Last known position

Most recent position reported by Mode-S A9025B.

Country allocation

The ICAO 24-bit address A9025B 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
NOAA68 - 122 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 NOAA68 - Jul 26, 20:30 UTCJul 26, 21:15 UTC45m
2026-07-26 NOAA68 - Jul 26, 15:40 UTCJul 26, 16:25 UTC45m
2026-07-25 NOAA68 - Jul 25, 21:55 UTCJul 25, 22:50 UTC55m
2026-07-25 NOAA68 - Jul 25, 16:40 UTCJul 25, 17:40 UTC1h 0m
2026-07-21 NOAA68 - Jul 21, 20:20 UTCJul 21, 20:45 UTC25m
2026-07-21 NOAA68 - Jul 21, 15:50 UTCJul 21, 16:45 UTC55m
2026-07-20 NOAA68 - Jul 20, 19:45 UTCJul 20, 20:25 UTC40m
2026-07-20 NOAA68 - Jul 20, 15:55 UTCJul 20, 16:35 UTC40m
2026-07-20 NOAA68 - Jul 20, 02:45 UTCJul 20, 03:20 UTC35m
2026-07-19 NOAA68 - Jul 19, 21:50 UTCJul 19, 22:15 UTC25m
2026-07-19 NOAA68 - Jul 19, 19:40 UTCJul 19, 20:20 UTC40m
2026-07-19 NOAA68 - Jul 19, 15:45 UTCJul 19, 16:15 UTC30m
2026-07-18 NOAA68 - Jul 18, 20:25 UTCJul 18, 21:10 UTC45m
2026-07-18 NOAA68 - Jul 18, 15:35 UTCJul 18, 16:20 UTC45m
2026-07-18 NOAA68 - Jul 18, 03:45 UTCJul 18, 04:30 UTC45m
2026-07-17 NOAA68 - Jul 17, 22:35 UTCJul 17, 23:30 UTC55m
2026-07-17 NOAA68 - Jul 17, 20:35 UTCJul 17, 21:20 UTC45m
2026-07-17 NOAA68 - Jul 17, 15:40 UTCJul 17, 16:24 UTC45m
2026-07-11 NOAA68 - Jul 11, 23:55 UTCJul 12, 00:35 UTC40m
2026-07-11 NOAA68 - Jul 11, 20:10 UTCJul 11, 20:50 UTC40m
2026-07-11 NOAA68 - Jul 11, 03:50 UTCJul 11, 04:15 UTC25m
2026-07-11 NOAA68 - Jul 11, 00:00 UTCJul 11, 00:35 UTC35m
2026-07-10 NOAA68 - Jul 10, 21:50 UTCJul 10, 22:20 UTC30m
2026-07-10 NOAA68 - Jul 10, 17:30 UTCJul 10, 18:00 UTC30m
2026-07-10 NOAA68 - Jul 10, 03:05 UTCJul 10, 04:05 UTC1h 0m
2026-07-09 NOAA68 - Jul 9, 23:15 UTCJul 10, 00:00 UTC45m
2026-07-08 NOAA68 - Jul 8, 02:05 UTCJul 8, 02:25 UTC20m
2026-07-07 NOAA68 - Jul 7, 21:40 UTCJul 7, 22:10 UTC30m
2026-07-07 NOAA68 - Jul 7, 19:50 UTCJul 7, 20:20 UTC30m
2026-07-07 NOAA68 - Jul 7, 15:35 UTCJul 7, 16:05 UTC30m
2026-07-07 NOAA68 - Jul 7, 01:45 UTCJul 7, 02:10 UTC25m
2026-07-06 NOAA68 - Jul 6, 21:30 UTCJul 6, 22:10 UTC40m
2026-07-06 NOAA68 - Jul 6, 19:55 UTCJul 6, 20:15 UTC20m
2026-07-06 NOAA68 - Jul 6, 15:45 UTCJul 6, 16:10 UTC25m
2026-07-06 NOAA68 - Jul 6, 01:35 UTCJul 6, 02:15 UTC40m
2026-07-05 NOAA68 - Jul 5, 21:50 UTCJul 5, 22:40 UTC50m
2026-07-05 NOAA68 - Jul 5, 19:35 UTCJul 5, 20:15 UTC40m
2026-07-05 NOAA68 - Jul 5, 15:40 UTCJul 5, 16:25 UTC45m
2026-07-03 NOAA68 ANC → FAI Jul 3, 23:05 UTCJul 4, 00:10 UTC1h 5m
2026-07-03 NOAA68 - Jul 3, 19:50 UTCJul 3, 21:05 UTC1h 15m
2026-07-03 NOAA68 - Jul 3, 17:40 UTCJul 3, 18:10 UTC30m
2026-07-03 NOAA68 - Jul 3, 03:30 UTCJul 3, 03:50 UTC20m
2026-07-02 NOAA68 - Jul 2, 21:40 UTCJul 2, 22:15 UTC35m
2026-06-30 NOAA68 - Jun 30, 21:20 UTCJun 30, 21:50 UTC30m
2026-06-30 NOAA68 - Jun 30, 16:50 UTCJun 30, 17:25 UTC35m
2026-06-26 NOAA68 - Jun 26, 23:39 UTCJun 27, 01:44 UTC2h 5m
2026-06-26 NOAA68 - Jun 26, 16:54 UTCJun 26, 21:45 UTC4h 50m
2026-06-05 NOAA68 - Jun 5, 18:10 UTCJun 5, 21:05 UTC2h 55m
2026-06-05 NOAA68 - Jun 5, 16:05 UTCJun 5, 17:00 UTC55m
2026-06-02 NOAA68 - Jun 2, 22:00 UTCJun 2, 22:20 UTC20m

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 N68RF page for operator, model, and routing details .

Mode-S A9025B frequently asked

What is Mode-S code A9025B?
A9025B is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N68RF.
Where is Mode-S A9025B registered?
Mode-S code A9025B 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 A9025B broadcasting right now?
No active broadcast right now. Last signal was 23d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A9025B, octal 52201133, decimal 11,076,187.
What flights does A9025B operate?
Mode-S A9025B has broadcast 1 distinct callsign, including NOAA68.