sensors Mode-S transponder

E4A012

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PR-XBU · AIRBUS A-320neo

Hex
E4A012
Octal
71120022
Decimal
14,983,186
Country
BR
Tail
PR-XBU
Type
A20N
No current signal · last broadcast 15h ago
Flights observed
9
Distinct callsigns
8
Country
BR
Last broadcast
15h ago

Last known position

Most recent position reported by Mode-S E4A012.

Country allocation

The ICAO 24-bit address E4A012 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 8 distinct

Callsign Airline Flights Last seen
TAM8123 - 2 2026-04-13
TAM8122 - 1 2026-04-13
TAM4607 - 1 2026-04-13
TAM3518 TAM Brazilian Airlines 1 2026-04-13
TAM3388 - 1 2026-04-14
TAM3244 - 1 2026-04-12
TAM3219 - 1 2026-04-13
TAM3218 - 1 2026-04-13

Recent flights last 9

DateFlightRouteTakeoffLandingDuration
2026-04-14 TAM3388 - Apr 14, 09:10 UTCApr 14, 11:05 UTC1h 55m
2026-04-13 TAM3219 - Apr 13, 21:50 UTCApr 13, 22:30 UTC40m
2026-04-13 TAM3218 - Apr 13, 18:45 UTCApr 13, 19:40 UTC55m
2026-04-13 TAM4607 - Apr 13, 16:35 UTCApr 13, 17:25 UTC50m
2026-04-13 TAM3518 GRU → GYN Apr 13, 13:50 UTCApr 13, 14:35 UTC45m
2026-04-13 TAM8123 - Apr 13, 11:55 UTCApr 13, 12:10 UTC15m
2026-04-13 TAM8123 - Apr 13, 08:55 UTCApr 13, 12:10 UTC3h 15m
2026-04-13 TAM8122 - Apr 13, 01:30 UTCApr 13, 03:30 UTC2h 0m
2026-04-12 TAM3244 - Apr 12, 18:35 UTCApr 12, 19:40 UTC1h 5m

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 PR-XBU page for operator, model, and routing details .

Mode-S E4A012 frequently asked

What is Mode-S code E4A012?
E4A012 is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PR-XBU.
Where is Mode-S E4A012 registered?
Mode-S code E4A012 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4A012 broadcasting right now?
No active broadcast right now. Last signal was 15h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4A012, octal 71120022, decimal 14,983,186.
What flights does E4A012 operate?
Mode-S E4A012 has broadcast 8 distinct callsigns, including TAM8123, TAM8122, TAM4607, TAM3518, TAM3388.