Apparatus

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sensors Mode-S transponder

E4A5C3

ICAO 24-bit transponder address · allocated to Brazil

Hex
E4A5C3
Octal
71122703
Decimal
14,984,643
Country
BR
No current signal · last broadcast Jul 26, 20:20 UTC
Flights observed
51
Distinct callsigns
1
Country
BR
Last broadcast
Jul 26, 20:20 UTC

Last known position

Most recent position reported by Mode-S E4A5C3.

Country allocation

The ICAO 24-bit address E4A5C3 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
PSDNP - 51 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PSDNP - Jul 26, 17:15 UTCJul 26, 20:20 UTC3h 5m
2026-07-23 PSDNP - Jul 23, 18:30 UTCJul 23, 20:10 UTC1h 40m
2026-07-22 PSDNP - Jul 22, 23:25 UTCJul 23, 20:10 UTC20h 45m
2026-07-22 PSDNP - Jul 22, 00:50 UTCJul 23, 00:15 UTC23h 25m
2026-07-22 PSDNP - Jul 22, 00:00 UTCJul 22, 00:55 UTC55m
2026-07-21 PSDNP - Jul 21, 18:50 UTCJul 21, 19:50 UTC1h 0m
2026-07-21 PSDNP - Jul 21, 10:35 UTCJul 21, 12:15 UTC1h 40m
2026-07-20 PSDNP - Jul 20, 18:25 UTCJul 20, 18:55 UTC30m
2026-07-20 PSDNP - Jul 20, 13:35 UTCJul 20, 14:20 UTC45m
2026-07-16 PSDNP - Jul 16, 15:19 UTCJul 16, 16:30 UTC1h 10m
2026-07-13 PSDNP - Jul 13, 08:30 UTCJul 13, 09:25 UTC55m
2026-07-10 PSDNP - Jul 10, 11:30 UTCJul 10, 21:15 UTC9h 45m
2026-07-08 PSDNP - Jul 8, 19:55 UTCJul 8, 20:20 UTC25m
2026-07-08 PSDNP - Jul 8, 13:50 UTCJul 8, 14:20 UTC30m
2026-07-03 PSDNP - Jul 3, 17:40 UTCJul 3, 17:50 UTC10m
2026-07-01 PSDNP - Jul 1, 10:55 UTCJul 1, 11:25 UTC30m
2026-06-29 PSDNP - Jun 29, 21:19 UTCJun 29, 21:54 UTC35m
2026-06-26 PSDNP - Jun 26, 01:10 UTCJun 26, 01:50 UTC40m
2026-06-24 PSDNP - Jun 24, 19:44 UTCJun 24, 20:09 UTC25m
2026-06-23 PSDNP - Jun 23, 10:15 UTCJun 23, 11:29 UTC1h 15m
2026-06-23 PSDNP - Jun 23, 08:54 UTCJun 23, 09:09 UTC15m
2026-06-21 PSDNP - Jun 21, 02:24 UTCJun 21, 03:05 UTC40m
2026-06-20 PSDNP - Jun 20, 19:55 UTCJun 20, 20:14 UTC20m
2026-06-18 PSDNP - Jun 18, 18:10 UTCJun 18, 19:35 UTC1h 25m
2026-06-15 PSDNP - Jun 15, 08:10 UTCJun 15, 09:05 UTC55m
2026-06-12 PSDNP - Jun 12, 17:05 UTCJun 12, 17:25 UTC20m
2026-06-09 PSDNP - Jun 9, 13:50 UTCJun 9, 23:40 UTC9h 50m
2026-06-08 PSDNP - Jun 8, 10:10 UTCJun 8, 11:35 UTC1h 25m
2026-06-02 PSDNP - Jun 2, 21:40 UTCJun 2, 22:05 UTC25m
2026-06-01 PSDNP - Jun 1, 19:15 UTCJun 1, 19:45 UTC30m
2026-05-28 PSDNP - May 28, 21:15 UTCMay 28, 22:20 UTC1h 5m
2026-05-27 PSDNP - May 27, 23:10 UTCMay 28, 22:20 UTC23h 10m
2026-05-26 PSDNP - May 26, 20:20 UTCMay 26, 20:34 UTC15m
2026-05-25 PSDNP - May 25, 10:30 UTCMay 25, 11:15 UTC45m
2026-05-17 PSDNP - May 17, 20:35 UTCMay 17, 21:01 UTC25m
2026-05-17 PSDNP - May 17, 18:20 UTCMay 17, 19:20 UTC1h 0m
2026-05-15 PSDNP - May 15, 20:45 UTCMay 15, 22:00 UTC1h 15m
2026-05-15 PSDNP - May 15, 19:15 UTCMay 15, 20:00 UTC45m
2026-05-15 PSDNP - May 15, 18:10 UTCMay 15, 18:30 UTC20m
2026-05-14 PSDNP - May 14, 00:25 UTCMay 14, 01:55 UTC1h 30m
2026-05-13 PSDNP - May 13, 10:20 UTCMay 13, 23:15 UTC12h 55m
2026-05-12 PSDNP - May 12, 22:35 UTCMay 12, 23:01 UTC25m
2026-05-12 PSDNP - May 12, 16:25 UTCMay 12, 16:55 UTC30m
2026-05-07 PSDNP - May 7, 18:50 UTCMay 7, 19:45 UTC55m
2026-05-05 PSDNP - May 5, 09:45 UTCMay 5, 10:25 UTC40m
2026-04-30 PSDNP - Apr 30, 17:45 UTCApr 30, 18:30 UTC45m
2026-04-29 PSDNP - Apr 29, 09:25 UTCApr 30, 01:10 UTC15h 45m
2026-04-28 PSDNP - Apr 28, 17:05 UTCApr 28, 17:25 UTC20m
2026-04-16 PSDNP - Apr 16, 21:39 UTCApr 16, 22:20 UTC40m
2026-04-15 PSDNP - Apr 15, 17:10 UTCApr 15, 17:55 UTC45m

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.

Mode-S E4A5C3 frequently asked

What is Mode-S code E4A5C3?
E4A5C3 is an ICAO 24-bit transponder address. Allocated to Brazil.
Where is Mode-S E4A5C3 registered?
Mode-S code E4A5C3 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A5C3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:20 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A5C3, octal 71122703, decimal 14,984,643.
What flights does E4A5C3 operate?
Mode-S E4A5C3 has broadcast 1 distinct callsign, including PSDNP.