sensors Mode-S transponder

A0EC98

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N159L · BOMBARDIER CL-600 Challenger · operated by LASAI AVIATION LLC, US ARMY

Hex
A0EC98
Octal
50166230
Decimal
10,546,328
Country
US
Tail
N159L
Type
CL60
No current signal · last broadcast 18h ago
Flights observed
8
Distinct callsigns
1
Country
US
Last broadcast
18h ago

Last known position

Most recent position reported by Mode-S A0EC98.

Country allocation

The ICAO 24-bit address A0EC98 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
BRIO66 - 8 2026-04-14

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-14 BRIO66 - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-14 BRIO66 - Apr 14, 07:10 UTCApr 14, 09:05 UTC1h 55m
2026-04-14 BRIO66 - Apr 14, 05:50 UTCApr 14, 07:10 UTC1h 20m
2026-04-13 BRIO66 - Apr 13, 12:50 UTCApr 13, 13:25 UTC35m
2026-04-13 BRIO66 - Apr 13, 11:55 UTCApr 13, 13:25 UTC1h 30m
2026-04-13 BRIO66 - Apr 13, 08:20 UTCApr 13, 12:05 UTC3h 45m
2026-04-13 BRIO66 - Apr 13, 08:10 UTCApr 13, 11:50 UTC3h 40m
2026-04-13 BRIO66 - Apr 13, 05:45 UTCApr 13, 08:15 UTC2h 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 N159L page for operator, model, and routing details .

Mode-S A0EC98 frequently asked

What is Mode-S code A0EC98?
A0EC98 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N159L.
Where is Mode-S A0EC98 registered?
Mode-S code A0EC98 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 A0EC98 broadcasting right now?
No active broadcast right now. Last signal was 18h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A0EC98, octal 50166230, decimal 10,546,328.
What flights does A0EC98 operate?
Mode-S A0EC98 has broadcast 1 distinct callsign, including BRIO66.