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sensors Mode-S transponder

E4A391

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PS-ADN · EMBRAER ERJ-190-400

Hex
E4A391
Octal
71121621
Decimal
14,984,081
Country
BR
Tail
PS-ADN
Type
E295
No current signal · last broadcast Jul 26, 15:35 UTC
Flights observed
483
Distinct callsigns
20
Country
BR
Last broadcast
Jul 26, 15:35 UTC

Last known position

Most recent position reported by Mode-S E4A391.

Country allocation

The ICAO 24-bit address E4A391 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 20 distinct

Callsign Airline Flights Last seen
AZU4450 - 7 2026-07-17
AZU4405 Azul Brazilian Airlines 7 2026-07-24
AZU4110 - 7 2026-07-22
AZU4437 Azul Brazilian Airlines 6 2026-07-24
AZU4436 Azul Brazilian Airlines 6 2026-07-24
AZU2878 Azul Brazilian Airlines 6 2026-07-25
AZU4423 - 5 2026-07-08
AZU4422 - 5 2026-07-08
AZU4406 Azul Brazilian Airlines 5 2026-07-25
AZU4117 Azul Brazilian Airlines 5 2026-07-24
AZU4087 - 5 2026-07-11
AZU4037 - 5 2026-07-11
AZU2924 - 5 2026-07-16
AZU2905 Azul Brazilian Airlines 5 2026-07-24
AZU2898 - 5 2026-07-16
AZU2884 Azul Brazilian Airlines 5 2026-06-06
AZU2816 - 5 2026-06-14
AZU2815 Azul Brazilian Airlines 5 2026-06-14
AZU4741 - 4 2026-07-16
AZU4657 Azul Brazilian Airlines 4 2026-07-26

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 AZU2597 NVT → VCP Jul 26, 14:55 UTCJul 26, 15:35 UTC40m
2026-07-26 AZU4165 VCP → NVT Jul 26, 13:10 UTCJul 26, 13:40 UTC30m
2026-07-26 AZU4657 FLN → VCP Jul 26, 09:05 UTCJul 26, 09:35 UTC30m
2026-07-26 AZU4657 FLN → VCP Jul 26, 08:45 UTCJul 26, 09:00 UTC15m
2026-07-25 AZU4230 CNF → GVR Jul 25, 13:10 UTCJul 26, 02:50 UTC13h 40m
2026-07-25 AZU2879 IMP → CNF Jul 25, 06:00 UTCJul 25, 12:00 UTC6h 0m
2026-07-25 AZU2878 CNF → IMP Jul 25, 04:35 UTCJul 25, 04:55 UTC20m
2026-07-25 AZU2878 CNF → IMP Jul 25, 03:15 UTCJul 25, 03:55 UTC40m
2026-07-25 AZU4406 FOR → JDO Jul 25, 00:15 UTCJul 25, 00:25 UTC10m
2026-07-24 AZU4405 JDO → FOR Jul 24, 23:00 UTCJul 24, 23:10 UTC10m
2026-07-24 AZU4437 AJU → REC Jul 24, 20:40 UTCJul 24, 20:55 UTC15m
2026-07-24 AZU4436 FLN → POA Jul 24, 19:30 UTCJul 24, 19:50 UTC20m
2026-07-24 AZU4117 SDU → VIX Jul 24, 17:25 UTCJul 24, 17:35 UTC10m
2026-07-24 AZU2905 CNF → SDU Jul 24, 15:35 UTCJul 24, 16:00 UTC25m
2026-07-24 AZU4118 SDU → CNF Jul 24, 13:30 UTCJul 24, 13:40 UTC10m
2026-07-24 AZU2948 CNF → SDU Jul 24, 11:55 UTCJul 24, 12:15 UTC20m
2026-07-24 AZU4043 VCP → CNF Jul 24, 09:40 UTCJul 24, 10:15 UTC35m
2026-07-23 AZU4195 SSA → VCP Jul 23, 21:10 UTCJul 23, 21:55 UTC45m
2026-07-22 AZU2994 VIX → CNF Jul 22, 22:05 UTCJul 23, 03:05 UTC5h 0m
2026-07-22 AZU2910 CNF → VIX Jul 22, 20:55 UTCJul 22, 21:05 UTC10m
2026-07-22 AZU5020 CGH → CNF Jul 22, 14:55 UTCJul 22, 15:30 UTC35m
2026-07-22 AZU6041 - Jul 22, 12:45 UTCJul 22, 13:30 UTC45m
2026-07-22 AZU4110 - Jul 22, 03:05 UTCJul 22, 03:15 UTC10m
2026-07-21 AZU5020 CGH → CNF Jul 21, 14:55 UTCJul 21, 15:25 UTC30m
2026-07-21 AZU6041 - Jul 21, 10:50 UTCJul 21, 13:35 UTC2h 45m
2026-07-21 AZU2879 IMP → CNF Jul 21, 05:50 UTCJul 21, 09:55 UTC4h 5m
2026-07-21 AZU2878 CNF → IMP Jul 21, 04:25 UTCJul 21, 04:45 UTC20m
2026-07-21 AZU2878 CNF → IMP Jul 21, 00:45 UTCJul 21, 03:45 UTC3h 0m
2026-07-20 AZU2880 CNF → GRU Jul 20, 22:15 UTCJul 20, 22:55 UTC40m
2026-07-20 AZU4437 AJU → REC Jul 20, 20:10 UTCJul 20, 20:20 UTC10m
2026-07-20 AZU4436 FLN → POA Jul 20, 18:55 UTCJul 20, 19:15 UTC20m
2026-07-20 AZU2905 - Jul 20, 15:20 UTCJul 20, 15:40 UTC20m
2026-07-20 AZU4570 GRU → CNF Jul 20, 13:20 UTCJul 20, 13:50 UTC30m
2026-07-20 AZU4645 SDU → GRU Jul 20, 11:15 UTCJul 20, 12:00 UTC45m
2026-07-20 AZU2797 VCP → SDU Jul 20, 09:05 UTCJul 20, 09:35 UTC30m
2026-07-20 AZU2928 PMW → VCP Jul 20, 02:35 UTCJul 20, 07:50 UTC5h 15m
2026-07-19 AZU2743 - Jul 19, 21:15 UTCJul 20, 00:30 UTC3h 15m
2026-07-19 AZU4175 - Jul 19, 19:20 UTCJul 19, 19:35 UTC15m
2026-07-19 AZU4727 - Jul 19, 16:35 UTCJul 19, 17:00 UTC25m
2026-07-18 AZU4339 - Jul 18, 18:30 UTCJul 18, 22:55 UTC4h 25m
2026-07-18 AZU4321 CNF → VCP Jul 18, 16:40 UTCJul 18, 17:15 UTC35m
2026-07-18 AZU4542 CWB → CNF Jul 18, 14:10 UTCJul 18, 15:05 UTC55m
2026-07-18 AZU2857 - Jul 18, 09:05 UTCJul 18, 12:50 UTC3h 45m
2026-07-18 AZU4484 - Jul 18, 00:55 UTCJul 18, 03:25 UTC2h 31m
2026-07-17 AZU4809 - Jul 17, 20:40 UTCJul 17, 22:49 UTC2h 10m
2026-07-17 AZU4808 CGB → BVH Jul 17, 16:59 UTCJul 17, 19:15 UTC2h 15m
2026-07-17 AZU4395 - Jul 17, 11:20 UTCJul 17, 14:44 UTC3h 25m
2026-07-17 AZU4450 - Jul 17, 08:54 UTCJul 17, 09:45 UTC50m
2026-07-17 AZU4110 - Jul 17, 03:05 UTCJul 17, 03:14 UTC10m
2026-07-16 AZU2920 - Jul 16, 23:25 UTCJul 16, 23:55 UTC30m

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

Mode-S E4A391 frequently asked

What is Mode-S code E4A391?
E4A391 is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PS-ADN.
Where is Mode-S E4A391 registered?
Mode-S code E4A391 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A391 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 15:35 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A391, octal 71121621, decimal 14,984,081.
What flights does E4A391 operate?
Mode-S E4A391 has broadcast 20 distinct callsigns, including AZU4450, AZU4405, AZU4110, AZU4437, AZU4436.