sensors Mode-S transponder

E4941B

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PR-ANY · AIRBUS A-330-900

Hex
E4941B
Octal
71112033
Decimal
14,980,123
Country
BR
Tail
PR-ANY
Type
A339
No current signal · last broadcast 1d ago
Flights observed
4
Distinct callsigns
2
Country
BR
Last broadcast
1d ago

Last known position

Most recent position reported by Mode-S E4941B.

Country allocation

The ICAO 24-bit address E4941B 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 2 distinct

Callsign Airline Flights Last seen
AZU8707 Azul Brazilian Airlines 3 2026-04-13
AZU8706 Azul Brazilian Airlines 1 2026-04-12

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 AZU8707 MCO → VCP Apr 13, 07:55 UTCApr 13, 08:20 UTC25m
2026-04-13 AZU8707 MCO → VCP Apr 13, 06:20 UTCApr 13, 08:15 UTC1h 55m
2026-04-13 AZU8707 MCO → VCP Apr 13, 00:25 UTCApr 13, 03:05 UTC2h 40m
2026-04-12 AZU8706 VCP → MCO Apr 12, 18:25 UTCApr 12, 18:50 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 PR-ANY page for operator, model, and routing details .

Mode-S E4941B frequently asked

What is Mode-S code E4941B?
E4941B is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PR-ANY.
Where is Mode-S E4941B registered?
Mode-S code E4941B is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E4941B broadcasting right now?
No active broadcast right now. Last signal was 1d ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E4941B, octal 71112033, decimal 14,980,123.
What flights does E4941B operate?
Mode-S E4941B has broadcast 2 distinct callsigns, including AZU8707, AZU8706.