Apparatus

Try JFK, AAL1290, BAW, or N225AN.

sensors Mode-S transponder

E4991A

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PS-LSS · BEECH 200 Super King Air

Hex
E4991A
Octal
71114432
Decimal
14,981,402
Country
BR
Tail
PS-LSS
Type
BE20
No current signal · last broadcast 3h ago
Flights observed
38
Distinct callsigns
1
Country
BR
Last broadcast
3h ago

Last known position

Most recent position reported by Mode-S E4991A.

Country allocation

The ICAO 24-bit address E4991A 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
PSLSS - 38 2026-05-14

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-05-14 PSLSS - May 14, 20:35 UTCMay 14, 20:40 UTC5m
2026-05-14 PSLSS - May 14, 16:00 UTCMay 14, 16:40 UTC40m
2026-05-14 PSLSS - May 14, 10:20 UTCMay 14, 11:05 UTC45m
2026-05-14 PSLSS - May 14, 01:20 UTCMay 14, 01:55 UTC35m
2026-05-13 PSLSS - May 13, 20:55 UTCMay 13, 21:30 UTC35m
2026-05-13 PSLSS - May 13, 17:30 UTCMay 13, 17:45 UTC15m
2026-05-10 PSLSS - May 10, 20:35 UTCMay 10, 20:50 UTC15m
2026-05-10 PSLSS - May 10, 18:05 UTCMay 10, 18:39 UTC35m
2026-05-10 PSLSS - May 10, 13:19 UTCMay 10, 14:14 UTC55m
2026-05-04 PSLSS - May 4, 16:50 UTCMay 4, 20:50 UTC4h 1m
2026-05-04 PSLSS - May 4, 15:00 UTCMay 4, 15:50 UTC50m
2026-05-04 PSLSS - May 4, 11:00 UTCMay 4, 11:45 UTC45m
2026-05-02 PSLSS - May 2, 10:55 UTCMay 2, 18:25 UTC7h 30m
2026-04-30 PSLSS - Apr 30, 21:50 UTCApr 30, 22:30 UTC40m
2026-04-30 PSLSS - Apr 30, 16:20 UTCApr 30, 16:55 UTC35m
2026-04-30 PSLSS - Apr 30, 13:55 UTCApr 30, 14:15 UTC20m
2026-04-30 PSLSS - Apr 30, 12:25 UTCApr 30, 13:20 UTC55m
2026-04-30 PSLSS - Apr 30, 09:15 UTCApr 30, 09:25 UTC10m
2026-04-29 PSLSS - Apr 29, 19:45 UTCApr 29, 20:20 UTC35m
2026-04-29 PSLSS - Apr 29, 12:10 UTCApr 29, 12:45 UTC35m
2026-04-28 PSLSS - Apr 28, 16:50 UTCApr 29, 12:45 UTC19h 55m
2026-04-28 PSLSS - Apr 28, 11:05 UTCApr 28, 17:25 UTC6h 20m
2026-04-24 PSLSS - Apr 24, 18:55 UTCApr 24, 19:25 UTC30m
2026-04-24 PSLSS - Apr 24, 14:55 UTCApr 24, 15:45 UTC50m
2026-04-23 PSLSS - Apr 23, 16:35 UTCApr 24, 12:30 UTC19h 55m
2026-04-23 PSLSS - Apr 23, 16:20 UTCApr 24, 12:30 UTC20h 10m
2026-04-23 PSLSS - Apr 23, 10:55 UTCApr 23, 16:55 UTC6h 0m
2026-04-22 PSLSS - Apr 22, 21:05 UTCApr 22, 21:20 UTC15m
2026-04-20 PSLSS - Apr 20, 20:10 UTCApr 20, 20:50 UTC40m
2026-04-20 PSLSS - Apr 20, 18:45 UTCApr 20, 19:00 UTC15m
2026-04-14 PSLSS - Apr 14, 18:00 UTCApr 14, 18:45 UTC45m
2026-04-14 PSLSS - Apr 14, 15:25 UTCApr 14, 16:15 UTC50m
2026-04-14 PSLSS - Apr 14, 13:55 UTCApr 14, 14:10 UTC15m
2026-04-14 PSLSS - Apr 14, 11:40 UTCApr 14, 12:10 UTC30m
2026-04-13 PSLSS - Apr 13, 16:15 UTCApr 13, 16:50 UTC35m
2026-04-13 PSLSS - Apr 13, 16:00 UTCApr 13, 16:15 UTC15m
2026-04-13 PSLSS - Apr 13, 10:40 UTCApr 13, 11:45 UTC1h 5m
2026-04-12 PSLSS - Apr 12, 19:15 UTCApr 12, 19:25 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 PS-LSS page for operator, model, and routing details .

Mode-S E4991A frequently asked

What is Mode-S code E4991A?
E4991A is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PS-LSS.
Where is Mode-S E4991A registered?
Mode-S code E4991A is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4991A broadcasting right now?
No active broadcast right now. Last signal was 3h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4991A, octal 71114432, decimal 14,981,402.
What flights does E4991A operate?
Mode-S E4991A has broadcast 1 distinct callsign, including PSLSS.