Apparatus

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sensors Mode-S transponder

E4A394

ICAO 24-bit transponder address · allocated to Brazil

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

Hex
E4A394
Octal
71121624
Decimal
14,984,084
Country
BR
Tail
PS-ADO
Type
E295
No current signal · last broadcast 2h ago
Flights observed
417
Distinct callsigns
20
Country
BR
Last broadcast
2h ago

Last known position

Most recent position reported by Mode-S E4A394.

Country allocation

The ICAO 24-bit address E4A394 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
AZU6419 Azul Brazilian Airlines 5 2026-06-12
AZU4236 - 5 2026-07-04
AZU2751 - 5 2026-06-30
AZU6085 Azul Brazilian Airlines 4 2026-06-01
AZU4450 - 4 2026-06-15
AZU4340 - 4 2026-06-19
AZU4321 - 4 2026-07-13
AZU4110 Azul Brazilian Airlines 4 2026-05-28
AZU4024 - 4 2026-07-12
AZU2948 - 4 2026-07-01
AZU2908 - 4 2026-07-01
AZU2811 - 4 2026-06-28
AZU2666 - 4 2026-06-18
AZU6413 Azul Brazilian Airlines 3 2026-06-02
AZU6084 Azul Brazilian Airlines 3 2026-05-20
AZU6030 Azul Brazilian Airlines 3 2026-05-23
AZU5070 Azul Brazilian Airlines 3 2026-06-12
AZU4917 - 3 2026-07-09
AZU4910 - 3 2026-07-02
AZU4769 - 3 2026-07-14

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-14 AZU4423 - Jul 14, 17:10 UTCJul 14, 17:40 UTC30m
2026-07-14 AZU4422 - Jul 14, 15:45 UTCJul 14, 16:20 UTC35m
2026-07-14 AZU4769 - Jul 14, 11:45 UTCJul 14, 12:30 UTC45m
2026-07-14 AZU2734 - Jul 14, 09:00 UTCJul 14, 09:50 UTC50m
2026-07-13 AZU4061 - Jul 13, 22:25 UTCJul 14, 02:20 UTC3h 55m
2026-07-13 AZU4046 - Jul 13, 18:25 UTCJul 13, 21:15 UTC2h 50m
2026-07-13 AZU4321 - Jul 13, 14:30 UTCJul 13, 17:25 UTC2h 55m
2026-07-13 AZU6082 - Jul 13, 11:10 UTCJul 13, 11:50 UTC40m
2026-07-12 AZU4024 - Jul 12, 22:50 UTCJul 13, 00:05 UTC1h 15m
2026-07-12 AZU2663 - Jul 12, 16:35 UTCJul 12, 20:40 UTC4h 5m
2026-07-12 AZU2428 - Jul 12, 11:35 UTCJul 12, 15:15 UTC3h 40m
2026-07-12 AZU6091 - Jul 12, 06:20 UTCJul 12, 09:35 UTC3h 15m
2026-07-12 AZU4254 - Jul 12, 02:15 UTCJul 12, 02:40 UTC25m
2026-07-11 AZU4036 - Jul 11, 23:25 UTCJul 12, 00:20 UTC55m
2026-07-11 AZU4035 - Jul 11, 21:40 UTCJul 11, 22:40 UTC1h 0m
2026-07-11 AZU2418 - Jul 11, 18:25 UTCJul 11, 18:40 UTC15m
2026-07-11 AZU2514 - Jul 11, 16:00 UTCJul 11, 16:15 UTC15m
2026-07-10 AZU4036 - Jul 10, 23:15 UTCJul 11, 00:10 UTC55m
2026-07-10 AZU4035 - Jul 10, 21:20 UTCJul 10, 22:20 UTC1h 0m
2026-07-10 AZU4656 - Jul 10, 14:55 UTCJul 10, 15:15 UTC20m
2026-07-10 AZU4655 - Jul 10, 13:00 UTCJul 10, 13:25 UTC25m
2026-07-10 AZU2913 - Jul 10, 09:00 UTCJul 10, 09:55 UTC55m
2026-07-10 AZU2642 - Jul 10, 07:45 UTCJul 10, 08:05 UTC20m
2026-07-10 AZU2871 - Jul 10, 04:30 UTCJul 10, 04:55 UTC25m
2026-07-10 AZU4254 - Jul 10, 02:40 UTCJul 10, 03:40 UTC1h 0m
2026-07-09 AZU2536 - Jul 9, 19:35 UTCJul 9, 20:10 UTC35m
2026-07-09 AZU4917 - Jul 9, 15:40 UTCJul 9, 18:30 UTC2h 50m
2026-07-09 AZU2999 - Jul 9, 09:30 UTCJul 9, 14:05 UTC4h 35m
2026-07-09 AZU4041 - Jul 9, 00:10 UTCJul 9, 01:05 UTC55m
2026-07-08 AZU4040 - Jul 8, 22:15 UTCJul 8, 23:00 UTC45m
2026-07-08 AZU4087 - Jul 8, 20:15 UTCJul 8, 21:00 UTC45m
2026-07-08 AZU4037 - Jul 8, 18:30 UTCJul 8, 18:55 UTC25m
2026-07-08 AZU4321 CNF → VCP Jul 8, 16:25 UTCJul 8, 17:00 UTC35m
2026-07-08 AZU4045 - Jul 8, 14:15 UTCJul 8, 14:45 UTC30m
2026-07-08 AZU2736 - Jul 8, 12:25 UTCJul 8, 13:15 UTC50m
2026-07-08 AZU2736 - Jul 8, 08:10 UTCJul 8, 08:25 UTC15m
2026-07-08 AZU4424 - Jul 8, 04:40 UTCJul 8, 05:25 UTC45m
2026-07-05 AZU2669 - Jul 5, 23:20 UTCJul 6, 00:10 UTC50m
2026-07-05 AZU2668 - Jul 5, 21:45 UTCJul 5, 22:30 UTC45m
2026-07-05 AZU4046 - Jul 5, 02:05 UTCJul 5, 20:30 UTC18h 25m
2026-07-04 AZU2994 - Jul 4, 22:00 UTCJul 5, 02:15 UTC4h 15m
2026-07-04 AZU5031 - Jul 4, 18:00 UTCJul 4, 21:05 UTC3h 5m
2026-07-04 AZU4236 - Jul 4, 13:30 UTCJul 4, 17:05 UTC3h 35m
2026-07-04 AZU4413 VIX → VIX Jul 4, 09:05 UTCJul 4, 12:35 UTC3h 30m
2026-07-04 AZU4412 - Jul 4, 01:05 UTCJul 4, 03:30 UTC2h 25m
2026-07-03 AZU4410 - Jul 3, 21:50 UTCJul 3, 22:40 UTC50m
2026-07-03 AZU4348 - Jul 3, 20:30 UTCJul 3, 20:50 UTC20m
2026-07-03 AZU4349 - Jul 3, 18:35 UTCJul 3, 18:55 UTC20m
2026-07-03 AZU4849 - Jul 3, 16:40 UTCJul 3, 17:30 UTC50m
2026-07-03 AZU4483 - Jul 3, 13:55 UTCJul 3, 14:50 UTC55m

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

Mode-S E4A394 frequently asked

What is Mode-S code E4A394?
E4A394 is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PS-ADO.
Where is Mode-S E4A394 registered?
Mode-S code E4A394 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A394 broadcasting right now?
No active broadcast right now. Last signal was 2h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A394, octal 71121624, decimal 14,984,084.
What flights does E4A394 operate?
Mode-S E4A394 has broadcast 20 distinct callsigns, including AZU6419, AZU4236, AZU2751, AZU6085, AZU4450.