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sensors Mode-S transponder

E4A12F

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PS-MSA

Hex
E4A12F
Octal
71120457
Decimal
14,983,471
Country
BR
Tail
PS-MSA
Type
ASTR
No current signal · last broadcast Jul 24, 20:05 UTC
Flights observed
38
Distinct callsigns
1
Country
BR
Last broadcast
Jul 24, 20:05 UTC

Last known position

Most recent position reported by Mode-S E4A12F.

Country allocation

The ICAO 24-bit address E4A12F 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
PSMSA - 38 2026-07-24

Recent flights last 38

DateFlightRouteTakeoffLandingDuration
2026-07-24 PSMSA - Jul 24, 19:20 UTCJul 24, 20:05 UTC45m
2026-07-24 PSMSA - Jul 24, 03:30 UTCJul 24, 06:10 UTC2h 40m
2026-07-23 PSMSA - Jul 23, 23:55 UTCJul 24, 02:15 UTC2h 20m
2026-07-23 PSMSA - Jul 23, 03:15 UTCJul 23, 04:35 UTC1h 20m
2026-07-22 PSMSA - Jul 22, 19:05 UTCJul 22, 22:05 UTC3h 0m
2026-07-21 PSMSA - Jul 21, 06:30 UTCJul 21, 21:35 UTC15h 5m
2026-07-19 PSMSA - Jul 19, 16:55 UTCJul 19, 20:30 UTC3h 35m
2026-06-30 PSMSA - Jun 30, 11:15 UTCJun 30, 14:00 UTC2h 45m
2026-06-26 PSMSA - Jun 26, 20:10 UTCJun 26, 20:55 UTC45m
2026-06-26 PSMSA - Jun 26, 13:04 UTCJun 26, 13:40 UTC35m
2026-06-23 PSMSA - Jun 23, 19:24 UTCJun 23, 19:55 UTC30m
2026-06-23 PSMSA - Jun 23, 12:29 UTCJun 23, 12:49 UTC20m
2026-06-16 PSMSA - Jun 16, 16:50 UTCJun 16, 17:15 UTC25m
2026-06-16 PSMSA - Jun 16, 15:30 UTCJun 16, 15:55 UTC25m
2026-06-15 PSMSA - Jun 15, 16:35 UTCJun 15, 17:30 UTC55m
2026-06-15 PSMSA - Jun 15, 13:00 UTCJun 15, 13:30 UTC30m
2026-06-12 PSMSA - Jun 12, 12:40 UTCJun 12, 13:35 UTC55m
2026-06-12 PSMSA - Jun 12, 11:25 UTCJun 12, 12:00 UTC35m
2026-06-10 PSMSA - Jun 10, 21:40 UTCJun 10, 22:50 UTC1h 10m
2026-05-29 PSMSA - May 29, 18:25 UTCMay 29, 19:30 UTC1h 5m
2026-05-29 PSMSA - May 29, 17:15 UTCMay 29, 17:45 UTC30m
2026-05-29 PSMSA - May 29, 10:50 UTCMay 29, 11:40 UTC50m
2026-05-28 PSMSA - May 28, 20:05 UTCMay 28, 20:50 UTC45m
2026-05-15 PSMSA - May 15, 17:40 UTCMay 15, 18:10 UTC30m
2026-05-15 PSMSA - May 15, 02:35 UTCMay 15, 17:10 UTC14h 34m
2026-05-14 PSMSA - May 14, 20:25 UTCMay 14, 20:50 UTC25m
2026-05-14 PSMSA - May 14, 18:35 UTCMay 14, 19:00 UTC25m
2026-05-14 PSMSA - May 14, 17:40 UTCMay 14, 18:10 UTC30m
2026-05-13 PSMSA - May 13, 18:50 UTCMay 14, 17:45 UTC22h 55m
2026-05-13 PSMSA - May 13, 12:45 UTCMay 13, 13:15 UTC30m
2026-04-26 PSMSA - Apr 26, 20:20 UTCApr 26, 20:45 UTC25m
2026-04-26 PSMSA - Apr 26, 18:20 UTCApr 26, 18:45 UTC25m
2026-04-25 PSMSA - Apr 25, 00:45 UTCApr 25, 01:15 UTC30m
2026-04-23 PSMSA - Apr 23, 15:15 UTCApr 23, 16:00 UTC45m
2026-04-23 PSMSA - Apr 23, 11:25 UTCApr 23, 14:10 UTC2h 45m
2026-04-19 PSMSA - Apr 19, 01:40 UTCApr 19, 17:30 UTC15h 50m
2026-04-18 PSMSA - Apr 18, 21:40 UTCApr 18, 22:00 UTC20m
2026-04-12 PSMSA - Apr 12, 17:30 UTCApr 12, 17:55 UTC25m

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-MSA page for operator, model, and routing details .

Mode-S E4A12F frequently asked

What is Mode-S code E4A12F?
E4A12F is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PS-MSA.
Where is Mode-S E4A12F registered?
Mode-S code E4A12F is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A12F broadcasting right now?
No active broadcast right now. Last signal was Jul 24, 20:05 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A12F, octal 71120457, decimal 14,983,471.
What flights does E4A12F operate?
Mode-S E4A12F has broadcast 1 distinct callsign, including PSMSA.