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sensors Mode-S transponder

E4A0B4

ICAO 24-bit transponder address · allocated to Brazil

Hex
E4A0B4
Octal
71120264
Decimal
14,983,348
Country
BR
No current signal · last broadcast Jul 18, 16:15 UTC
Flights observed
54
Distinct callsigns
1
Country
BR
Last broadcast
Jul 18, 16:15 UTC

Last known position

Most recent position reported by Mode-S E4A0B4.

Country allocation

The ICAO 24-bit address E4A0B4 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
PRABX - 54 2026-07-18

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-18 PRABX - Jul 18, 16:05 UTCJul 18, 16:15 UTC10m
2026-07-18 PRABX - Jul 18, 15:30 UTCJul 18, 15:45 UTC15m
2026-07-18 PRABX - Jul 18, 12:55 UTCJul 18, 13:35 UTC40m
2026-07-17 PRABX - Jul 17, 14:50 UTCJul 17, 15:05 UTC15m
2026-07-17 PRABX - Jul 17, 12:50 UTCJul 17, 13:05 UTC15m
2026-07-14 PRABX - Jul 14, 11:55 UTCJul 14, 12:40 UTC45m
2026-07-11 PRABX - Jul 11, 17:00 UTCJul 11, 17:35 UTC35m
2026-07-11 PRABX - Jul 11, 14:45 UTCJul 11, 15:10 UTC25m
2026-07-11 PRABX - Jul 11, 13:15 UTCJul 11, 13:35 UTC20m
2026-07-10 PRABX - Jul 10, 15:15 UTCJul 10, 16:20 UTC1h 5m
2026-07-10 PRABX - Jul 10, 11:30 UTCJul 10, 12:00 UTC30m
2026-07-10 PRABX - Jul 10, 09:05 UTCJul 10, 09:40 UTC35m
2026-07-08 PRABX - Jul 8, 19:25 UTCJul 8, 19:50 UTC25m
2026-07-08 PRABX - Jul 8, 12:30 UTCJul 8, 13:05 UTC35m
2026-07-07 PRABX - Jul 7, 19:55 UTCJul 7, 20:35 UTC40m
2026-07-06 PRABX - Jul 6, 14:15 UTCJul 6, 14:25 UTC10m
2026-07-06 PRABX - Jul 6, 12:50 UTCJul 6, 13:25 UTC35m
2026-06-30 PRABX - Jun 30, 18:35 UTCJun 30, 19:55 UTC1h 20m
2026-06-30 PRABX - Jun 30, 09:10 UTCJun 30, 10:35 UTC1h 25m
2026-06-25 PRABX - Jun 25, 13:59 UTCJun 25, 14:09 UTC10m
2026-06-23 PRABX - Jun 23, 13:05 UTCJun 23, 13:15 UTC10m
2026-06-17 PRABX - Jun 17, 13:30 UTCJun 17, 13:50 UTC20m
2026-06-17 PRABX - Jun 17, 09:25 UTCJun 17, 11:20 UTC1h 55m
2026-06-03 PRABX - Jun 3, 19:00 UTCJun 3, 20:10 UTC1h 10m
2026-06-03 PRABX - Jun 3, 09:45 UTCJun 3, 11:10 UTC1h 25m
2026-05-31 PRABX - May 31, 21:30 UTCMay 31, 22:10 UTC40m
2026-05-30 PRABX - May 30, 12:20 UTCMay 30, 12:55 UTC35m
2026-05-27 PRABX - May 27, 19:45 UTCMay 27, 20:10 UTC25m
2026-05-27 PRABX - May 27, 18:50 UTCMay 27, 19:15 UTC25m
2026-05-27 PRABX - May 27, 09:05 UTCMay 27, 10:40 UTC1h 35m
2026-05-12 PRABX - May 12, 22:45 UTCMay 12, 23:05 UTC20m
2026-05-12 PRABX - May 12, 21:01 UTCMay 12, 22:15 UTC1h 15m
2026-05-12 PRABX - May 12, 13:10 UTCMay 12, 14:25 UTC1h 15m
2026-05-12 PRABX - May 12, 12:15 UTCMay 12, 12:25 UTC10m
2026-05-04 PRABX - May 4, 14:20 UTCMay 4, 15:40 UTC1h 20m
2026-05-04 PRABX - May 4, 09:35 UTCMay 4, 10:50 UTC1h 15m
2026-05-02 PRABX - May 2, 20:10 UTCMay 2, 21:40 UTC1h 30m
2026-05-02 PRABX - May 2, 13:30 UTCMay 2, 14:15 UTC45m
2026-05-02 PRABX - May 2, 12:35 UTCMay 2, 12:45 UTC10m
2026-04-30 PRABX - Apr 30, 16:25 UTCApr 30, 17:30 UTC1h 5m
2026-04-30 PRABX - Apr 30, 12:30 UTCApr 30, 12:45 UTC15m
2026-04-29 PRABX - Apr 29, 12:05 UTCApr 29, 12:55 UTC50m
2026-04-29 PRABX - Apr 29, 10:35 UTCApr 29, 10:50 UTC15m
2026-04-24 PRABX - Apr 24, 14:15 UTCApr 24, 14:40 UTC25m
2026-04-24 PRABX - Apr 24, 13:00 UTCApr 24, 13:10 UTC10m
2026-04-23 PRABX - Apr 23, 20:00 UTCApr 23, 20:30 UTC30m
2026-04-23 PRABX - Apr 23, 19:00 UTCApr 23, 19:20 UTC20m
2026-04-23 PRABX - Apr 23, 09:45 UTCApr 23, 11:01 UTC1h 15m
2026-04-21 PRABX - Apr 21, 18:40 UTCApr 21, 18:55 UTC15m
2026-04-17 PRABX - Apr 17, 14:35 UTCApr 17, 15:00 UTC24m

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 E4A0B4 frequently asked

What is Mode-S code E4A0B4?
E4A0B4 is an ICAO 24-bit transponder address. Allocated to Brazil.
Where is Mode-S E4A0B4 registered?
Mode-S code E4A0B4 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A0B4 broadcasting right now?
No active broadcast right now. Last signal was Jul 18, 16:15 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A0B4, octal 71120264, decimal 14,983,348.
What flights does E4A0B4 operate?
Mode-S E4A0B4 has broadcast 1 distinct callsign, including PRABX.