Apparatus

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sensors Mode-S transponder

E4A174

ICAO 24-bit transponder address · allocated to Brazil

Hex
E4A174
Octal
71120564
Decimal
14,983,540
Country
BR
No current signal · last broadcast Jul 26, 20:40 UTC
Flights observed
82
Distinct callsigns
1
Country
BR
Last broadcast
Jul 26, 20:40 UTC

Last known position

Most recent position reported by Mode-S E4A174.

Country allocation

The ICAO 24-bit address E4A174 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
PSAHV - 82 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 PSAHV - Jul 26, 20:15 UTCJul 26, 20:40 UTC25m
2026-07-26 PSAHV - Jul 26, 18:25 UTCJul 26, 18:50 UTC25m
2026-07-26 PSAHV - Jul 26, 16:25 UTCJul 26, 16:40 UTC15m
2026-07-26 PSAHV - Jul 26, 14:35 UTCJul 26, 15:05 UTC30m
2026-07-23 PSAHV - Jul 23, 14:50 UTCJul 23, 15:15 UTC25m
2026-07-23 PSAHV - Jul 23, 13:20 UTCJul 23, 13:40 UTC20m
2026-07-22 PSAHV - Jul 22, 20:25 UTCJul 22, 20:45 UTC20m
2026-07-22 PSAHV - Jul 22, 18:40 UTCJul 22, 19:05 UTC25m
2026-07-21 PSAHV - Jul 21, 15:35 UTCJul 21, 16:00 UTC25m
2026-07-21 PSAHV - Jul 21, 13:15 UTCJul 21, 13:45 UTC30m
2026-07-20 PSAHV - Jul 20, 19:20 UTCJul 20, 19:45 UTC25m
2026-07-20 PSAHV - Jul 20, 18:05 UTCJul 20, 18:20 UTC15m
2026-07-18 PSAHV - Jul 18, 15:50 UTCJul 18, 16:25 UTC35m
2026-07-18 PSAHV - Jul 18, 14:35 UTCJul 18, 15:00 UTC25m
2026-07-17 PSAHV - Jul 17, 16:24 UTCJul 17, 17:05 UTC40m
2026-07-17 PSAHV - Jul 17, 15:00 UTCJul 17, 15:40 UTC40m
2026-07-12 PSAHV - Jul 12, 17:25 UTCJul 12, 18:01 UTC35m
2026-07-12 PSAHV - Jul 12, 15:01 UTCJul 12, 16:15 UTC1h 15m
2026-07-12 PSAHV - Jul 12, 13:01 UTCJul 12, 13:25 UTC25m
2026-07-08 PSAHV - Jul 8, 20:35 UTCJul 8, 20:50 UTC15m
2026-07-08 PSAHV - Jul 8, 19:15 UTCJul 8, 19:35 UTC20m
2026-07-08 PSAHV - Jul 8, 17:55 UTCJul 8, 18:15 UTC20m
2026-07-08 PSAHV - Jul 8, 16:05 UTCJul 8, 16:35 UTC30m
2026-07-06 PSAHV - Jul 6, 13:00 UTCJul 6, 13:20 UTC20m
2026-07-06 PSAHV - Jul 6, 11:50 UTCJul 6, 12:05 UTC15m
2026-07-05 PSAHV - Jul 5, 14:40 UTCJul 5, 15:05 UTC25m
2026-07-05 PSAHV - Jul 5, 13:15 UTCJul 5, 13:30 UTC15m
2026-07-03 PSAHV - Jul 3, 15:35 UTCJul 3, 16:00 UTC25m
2026-07-03 PSAHV - Jul 3, 14:15 UTCJul 3, 14:50 UTC35m
2026-07-01 PSAHV - Jul 1, 14:30 UTCJul 1, 15:05 UTC35m
2026-07-01 PSAHV - Jul 1, 12:10 UTCJul 1, 12:35 UTC25m
2026-06-30 PSAHV - Jun 30, 12:50 UTCJun 30, 13:20 UTC30m
2026-06-30 PSAHV - Jun 30, 11:00 UTCJun 30, 11:30 UTC30m
2026-06-28 PSAHV - Jun 28, 17:34 UTCJun 28, 18:40 UTC1h 5m
2026-06-27 PSAHV - Jun 27, 19:55 UTCJun 27, 20:14 UTC20m
2026-06-27 PSAHV - Jun 27, 18:09 UTCJun 27, 18:35 UTC25m
2026-06-27 PSAHV - Jun 27, 15:24 UTCJun 27, 15:45 UTC20m
2026-06-27 PSAHV - Jun 27, 13:35 UTCJun 27, 13:55 UTC20m
2026-06-21 PSAHV - Jun 21, 14:05 UTCJun 21, 14:15 UTC10m
2026-06-19 PSAHV - Jun 19, 20:59 UTCJun 19, 21:14 UTC15m
2026-06-07 PSAHV - Jun 7, 20:40 UTCJun 7, 21:05 UTC25m
2026-06-07 PSAHV - Jun 7, 18:55 UTCJun 7, 19:25 UTC30m
2026-06-07 PSAHV - Jun 7, 15:40 UTCJun 7, 15:55 UTC15m
2026-06-07 PSAHV - Jun 7, 14:10 UTCJun 7, 14:25 UTC15m
2026-06-04 PSAHV - Jun 4, 15:00 UTCJun 4, 15:25 UTC25m
2026-06-04 PSAHV - Jun 4, 12:35 UTCJun 4, 13:10 UTC35m
2026-06-03 PSAHV - Jun 3, 19:50 UTCJun 3, 20:10 UTC20m
2026-06-03 PSAHV - Jun 3, 18:00 UTCJun 3, 18:30 UTC30m
2026-06-01 PSAHV - Jun 1, 20:30 UTCJun 1, 20:55 UTC25m
2026-05-30 PSAHV - May 30, 21:40 UTCMay 30, 21:55 UTC15m

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 E4A174 frequently asked

What is Mode-S code E4A174?
E4A174 is an ICAO 24-bit transponder address. Allocated to Brazil.
Where is Mode-S E4A174 registered?
Mode-S code E4A174 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A174 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 20:40 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A174, octal 71120564, decimal 14,983,540.
What flights does E4A174 operate?
Mode-S E4A174 has broadcast 1 distinct callsign, including PSAHV.