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sensors Mode-S transponder

E4A178

ICAO 24-bit transponder address · allocated to Brazil

Hex
E4A178
Octal
71120570
Decimal
14,983,544
Country
BR
No current signal · last broadcast Jul 24, 12:45 UTC
Flights observed
51
Distinct callsigns
1
Country
BR
Last broadcast
Jul 24, 12:45 UTC

Last known position

Most recent position reported by Mode-S E4A178.

Country allocation

The ICAO 24-bit address E4A178 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
PSCSX - 51 2026-07-24

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-24 PSCSX - Jul 24, 11:25 UTCJul 24, 12:45 UTC1h 20m
2026-07-22 PSCSX - Jul 22, 23:25 UTCJul 22, 23:35 UTC10m
2026-07-22 PSCSX - Jul 22, 22:05 UTCJul 22, 23:10 UTC1h 5m
2026-07-21 PSCSX - Jul 21, 15:30 UTCJul 21, 16:25 UTC55m
2026-07-21 PSCSX - Jul 21, 14:00 UTCJul 21, 14:10 UTC10m
2026-07-20 PSCSX - Jul 20, 20:10 UTCJul 20, 20:40 UTC30m
2026-07-08 PSCSX - Jul 8, 15:50 UTCJul 8, 16:50 UTC1h 0m
2026-07-07 PSCSX - Jul 7, 14:05 UTCJul 7, 15:20 UTC1h 15m
2026-07-07 PSCSX - Jul 7, 10:25 UTCJul 7, 11:10 UTC45m
2026-07-05 PSCSX - Jul 5, 15:40 UTCJul 5, 17:00 UTC1h 20m
2026-07-05 PSCSX - Jul 5, 12:10 UTCJul 5, 12:50 UTC40m
2026-07-01 PSCSX - Jul 1, 16:35 UTCJul 1, 16:45 UTC10m
2026-07-01 PSCSX - Jul 1, 15:05 UTCJul 1, 16:05 UTC1h 0m
2026-06-30 PSCSX - Jun 30, 12:35 UTCJun 30, 13:15 UTC40m
2026-06-26 PSCSX - Jun 26, 20:15 UTCJun 26, 21:50 UTC1h 35m
2026-06-18 PSCSX - Jun 18, 16:55 UTCJun 18, 17:21 UTC26m
2026-06-18 PSCSX - Jun 18, 10:55 UTCJun 18, 11:55 UTC1h 0m
2026-06-17 PSCSX - Jun 17, 13:20 UTCJun 17, 13:35 UTC15m
2026-06-17 PSCSX - Jun 17, 12:05 UTCJun 17, 12:35 UTC30m
2026-06-15 PSCSX - Jun 15, 15:55 UTCJun 15, 16:19 UTC25m
2026-06-14 PSCSX - Jun 14, 20:15 UTCJun 14, 21:30 UTC1h 15m
2026-06-12 PSCSX - Jun 12, 10:20 UTCJun 12, 11:00 UTC40m
2026-06-11 PSCSX - Jun 11, 11:15 UTCJun 11, 11:45 UTC30m
2026-06-10 PSCSX - Jun 10, 18:15 UTCJun 10, 19:25 UTC1h 10m
2026-06-03 PSCSX - Jun 3, 11:55 UTCJun 3, 12:20 UTC25m
2026-06-01 PSCSX - Jun 1, 10:50 UTCJun 1, 11:15 UTC25m
2026-05-29 PSCSX - May 29, 16:05 UTCMay 29, 17:05 UTC1h 0m
2026-05-28 PSCSX - May 28, 14:45 UTCMay 28, 15:25 UTC40m
2026-05-26 PSCSX - May 26, 17:09 UTCMay 26, 17:25 UTC15m
2026-05-26 PSCSX - May 26, 15:29 UTCMay 26, 15:45 UTC15m
2026-05-25 PSCSX - May 25, 11:50 UTCMay 25, 12:25 UTC35m
2026-05-22 PSCSX - May 22, 14:10 UTCMay 22, 14:35 UTC25m
2026-05-22 PSCSX - May 22, 12:35 UTCMay 22, 12:50 UTC15m
2026-05-19 PSCSX - May 19, 13:45 UTCMay 19, 14:05 UTC20m
2026-05-14 PSCSX - May 14, 18:15 UTCMay 14, 18:40 UTC25m
2026-05-14 PSCSX - May 14, 14:30 UTCMay 14, 15:10 UTC40m
2026-05-13 PSCSX - May 13, 19:00 UTCMay 13, 19:10 UTC10m
2026-05-13 PSCSX - May 13, 17:20 UTCMay 13, 18:15 UTC55m
2026-05-12 PSCSX - May 12, 10:35 UTCMay 12, 11:05 UTC30m
2026-05-11 PSCSX - May 11, 17:30 UTCMay 11, 17:45 UTC15m
2026-05-05 PSCSX - May 5, 12:35 UTCMay 5, 13:00 UTC25m
2026-05-03 PSCSX - May 3, 22:25 UTCMay 3, 22:54 UTC30m
2026-04-30 PSCSX - Apr 30, 10:15 UTCApr 30, 10:25 UTC10m
2026-04-28 PSCSX - Apr 28, 10:25 UTCApr 28, 11:00 UTC35m
2026-04-27 PSCSX - Apr 27, 21:00 UTCApr 27, 22:15 UTC1h 15m
2026-04-27 PSCSX - Apr 27, 13:50 UTCApr 27, 14:45 UTC55m
2026-04-27 PSCSX - Apr 27, 12:20 UTCApr 27, 12:35 UTC15m
2026-04-16 PSCSX - Apr 16, 21:14 UTCApr 16, 22:24 UTC1h 10m
2026-04-15 PSCSX - Apr 15, 10:15 UTCApr 15, 10:25 UTC10m
2026-04-14 PSCSX - Apr 14, 21:10 UTCApr 14, 21:50 UTC40m

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 E4A178 frequently asked

What is Mode-S code E4A178?
E4A178 is an ICAO 24-bit transponder address. Allocated to Brazil.
Where is Mode-S E4A178 registered?
Mode-S code E4A178 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A178 broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 12:45 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A178, octal 71120570, decimal 14,983,544.
What flights does E4A178 operate?
Mode-S E4A178 has broadcast 1 distinct callsign, including PSCSX.