Apparatus

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sensors Mode-S transponder

A402EA

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N358EA · operated by MESA PILOT DEVELOPMENT LLC

Hex
A402EA
Octal
51001352
Decimal
10,748,650
Country
US
Tail
N358EA
Type
PIAT
Broadcasting now · callsign N358EA · 6,100 ft
Flights observed
16
Distinct callsigns
1
Country
US
Last broadcast
12h ago

Current position

A402EA is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address A402EA 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
N358EA - 16 2026-04-14

Recent flights last 16

DateFlightRouteTakeoffLandingDuration
2026-04-14 N358EA - Apr 14, 10:45 UTCApr 14, 11:05 UTC20m
2026-04-13 N358EA - Apr 13, 22:05 UTCApr 13, 22:50 UTC45m
2026-04-13 N358EA - Apr 13, 20:25 UTCApr 13, 21:25 UTC1h 0m
2026-04-13 N358EA - Apr 13, 16:20 UTCApr 13, 19:45 UTC3h 25m
2026-04-13 N358EA - Apr 13, 15:50 UTCApr 13, 19:45 UTC3h 55m
2026-04-13 N358EA - Apr 13, 12:20 UTCApr 13, 15:55 UTC3h 35m
2026-04-13 N358EA - Apr 13, 11:55 UTCApr 13, 15:50 UTC3h 55m
2026-04-13 N358EA - Apr 13, 11:15 UTCApr 13, 12:15 UTC1h 0m
2026-04-13 N358EA - Apr 13, 08:20 UTCApr 13, 10:40 UTC2h 20m
2026-04-13 N358EA - Apr 13, 08:05 UTCApr 13, 08:15 UTC10m
2026-04-13 N358EA - Apr 13, 05:10 UTCApr 13, 08:00 UTC2h 50m
2026-04-13 N358EA - Apr 13, 04:20 UTCApr 13, 05:05 UTC45m
2026-04-13 N358EA - Apr 13, 03:55 UTCApr 13, 05:05 UTC1h 10m
2026-04-13 N358EA - Apr 13, 01:55 UTCApr 13, 04:15 UTC2h 20m
2026-04-13 N358EA - Apr 13, 00:30 UTCApr 13, 01:50 UTC1h 20m
2026-04-12 N358EA - Apr 12, 23:55 UTCApr 13, 01:50 UTC1h 55m

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 N358EA page for operator, model, and routing details .

Mode-S A402EA frequently asked

What is Mode-S code A402EA?
A402EA is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N358EA.
Where is Mode-S A402EA registered?
Mode-S code A402EA 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 A402EA broadcasting right now?
Yes. Mode-S A402EA is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex A402EA, octal 51001352, decimal 10,748,650.
What flights does A402EA operate?
Mode-S A402EA has broadcast 1 distinct callsign, including N358EA.