sensors Mode-S transponder

A2B5EB

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N274FX · operated by FLEXJET LLC

Hex
A2B5EB
Octal
50532753
Decimal
10,663,403
Country
US
Tail
N274FX
Broadcasting now · callsign LXJ274 · 39,625 ft
Flights observed
5
Distinct callsigns
1
Country
US
Last broadcast
2h ago

Current position

A2B5EB is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A2B5EB 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
LXJ274 - 5 2026-07-05

Recent flights last 5

DateFlightRouteTakeoffLandingDuration
2026-07-05 LXJ274 - Jul 5, 19:05 UTCJul 5, 19:45 UTC40m
2026-07-05 LXJ274 - Jul 5, 15:35 UTCJul 5, 17:00 UTC1h 25m
2026-07-05 LXJ274 - Jul 5, 12:15 UTCJul 5, 13:25 UTC1h 10m
2026-07-03 LXJ274 CLE → CLE Jul 3, 13:50 UTCJul 3, 15:35 UTC1h 45m
2026-06-26 LXJ274 MLB → CLE Jun 26, 17:50 UTCJun 26, 20:00 UTC2h 10m

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 N274FX page for operator, model, and routing details .

Mode-S A2B5EB frequently asked

What is Mode-S code A2B5EB?
A2B5EB is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N274FX.
Where is Mode-S A2B5EB registered?
Mode-S code A2B5EB 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 A2B5EB broadcasting right now?
Yes. Mode-S A2B5EB is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A2B5EB, octal 50532753, decimal 10,663,403.
What flights does A2B5EB operate?
Mode-S A2B5EB has broadcast 1 distinct callsign, including LXJ274.