Apparatus

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sensors Mode-S transponder

E490AB

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PR-FHI · CESSNA 525 Citation M2

Hex
E490AB
Octal
71110253
Decimal
14,979,243
Country
BR
Tail
PR-FHI
Type
C25M
No current signal · last broadcast 1d ago
Flights observed
8
Distinct callsigns
1
Country
BR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S E490AB.

Country allocation

The ICAO 24-bit address E490AB falls within the block assigned to Brazil (BR) by ICAO Annex 10, Volume III. Every aircraft registered in Brazil 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
PRFHI - 8 2026-04-13

Recent flights last 8

DateFlightRouteTakeoffLandingDuration
2026-04-13 PRFHI - Apr 13, 19:50 UTCApr 13, 20:15 UTC25m
2026-04-13 PRFHI - Apr 13, 19:30 UTCApr 13, 19:55 UTC25m
2026-04-13 PRFHI - Apr 13, 17:40 UTCApr 13, 18:30 UTC50m
2026-04-13 PRFHI - Apr 13, 16:15 UTCApr 13, 16:45 UTC30m
2026-04-13 PRFHI - Apr 13, 16:05 UTCApr 13, 16:45 UTC40m
2026-04-13 PRFHI - Apr 13, 15:45 UTCApr 13, 16:15 UTC30m
2026-04-13 PRFHI - Apr 13, 13:55 UTCApr 13, 14:45 UTC50m
2026-04-13 PRFHI - Apr 13, 13:00 UTCApr 13, 13:10 UTC10m

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 PR-FHI page for operator, model, and routing details .

Mode-S E490AB frequently asked

What is Mode-S code E490AB?
E490AB is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PR-FHI.
Where is Mode-S E490AB registered?
Mode-S code E490AB is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E490AB 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 E490AB, octal 71110253, decimal 14,979,243.
What flights does E490AB operate?
Mode-S E490AB has broadcast 1 distinct callsign, including PRFHI.