Apparatus

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sensors Mode-S transponder

A98BAD

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N714HW · CESSNA 172 Skyhawk · operated by NATIONAL TRAINING 1 LLC

Hex
A98BAD
Octal
52305655
Decimal
11,111,341
Country
US
Tail
N714HW
Type
C172
No current signal · last broadcast 1d ago
Flights observed
10
Distinct callsigns
1
Country
US
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S A98BAD.

Country allocation

The ICAO 24-bit address A98BAD 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
CXK543 - 10 2026-04-13

Recent flights last 10

DateFlightRouteTakeoffLandingDuration
2026-04-13 CXK543 - Apr 13, 22:10 UTCApr 13, 23:45 UTC1h 35m
2026-04-13 CXK543 - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 CXK543 - Apr 13, 18:25 UTCApr 13, 19:55 UTC1h 30m
2026-04-13 CXK543 - Apr 13, 16:15 UTCApr 13, 17:10 UTC55m
2026-04-13 CXK543 - Apr 13, 15:50 UTCApr 13, 17:10 UTC1h 20m
2026-04-13 CXK543 - Apr 13, 15:30 UTCApr 13, 16:15 UTC45m
2026-04-13 CXK543 - Apr 13, 13:05 UTCApr 13, 14:30 UTC1h 25m
2026-04-13 CXK543 - Apr 13, 04:20 UTCApr 13, 04:40 UTC20m
2026-04-13 CXK543 - Apr 13, 03:55 UTCApr 13, 04:40 UTC45m
2026-04-13 CXK543 - Apr 13, 02:45 UTCApr 13, 04:15 UTC1h 30m

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 N714HW page for operator, model, and routing details .

Mode-S A98BAD frequently asked

What is Mode-S code A98BAD?
A98BAD is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N714HW.
Where is Mode-S A98BAD registered?
Mode-S code A98BAD 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 A98BAD 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 A98BAD, octal 52305655, decimal 11,111,341.
What flights does A98BAD operate?
Mode-S A98BAD has broadcast 1 distinct callsign, including CXK543.