sensors Mode-S transponder

E491EF

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PR-TYR · AIRBUS A-320

Hex
E491EF
Octal
71110757
Decimal
14,979,567
Country
BR
Tail
PR-TYR
Type
A320
No current signal · last broadcast 16h ago
Flights observed
11
Distinct callsigns
8
Country
BR
Last broadcast
16h ago

Last known position

Most recent position reported by Mode-S E491EF.

Country allocation

The ICAO 24-bit address E491EF 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
TAM8048 - 2 2026-04-13
LAN605 - 2 2026-04-13
LAN604 LAN Airlines 2 2026-04-13
TAM8192 - 1 2026-04-14
TAM8138 - 1 2026-04-13
TAM8049 - 1 2026-04-13
TAM3449 - 1 2026-04-12
TAM3222 - 1 2026-04-12

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 TAM8192 - Apr 14, 10:45 UTCApr 14, 11:05 UTC20m
2026-04-13 TAM8138 - Apr 13, 21:00 UTCApr 13, 23:35 UTC2h 35m
2026-04-13 TAM8049 - Apr 13, 17:00 UTCApr 13, 19:15 UTC2h 15m
2026-04-13 TAM8048 - Apr 13, 14:35 UTCApr 13, 14:50 UTC15m
2026-04-13 TAM8048 - Apr 13, 12:35 UTCApr 13, 14:30 UTC1h 55m
2026-04-13 LAN605 - Apr 13, 08:20 UTCApr 13, 09:05 UTC45m
2026-04-13 LAN605 - Apr 13, 06:45 UTCApr 13, 07:05 UTC20m
2026-04-13 LAN604 SCL → GRU Apr 13, 00:20 UTCApr 13, 02:20 UTC2h 0m
2026-04-13 LAN604 SCL → GRU Apr 13, 00:05 UTCApr 13, 02:20 UTC2h 15m
2026-04-12 TAM3222 - Apr 12, 19:15 UTCApr 12, 20:15 UTC1h 0m
2026-04-12 TAM3449 - Apr 12, 17:15 UTCApr 12, 17:25 UTC10m

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

Mode-S E491EF frequently asked

What is Mode-S code E491EF?
E491EF is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PR-TYR.
Where is Mode-S E491EF registered?
Mode-S code E491EF is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E491EF broadcasting right now?
No active broadcast right now. Last signal was 16h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E491EF, octal 71110757, decimal 14,979,567.
What flights does E491EF operate?
Mode-S E491EF has broadcast 8 distinct callsigns, including TAM8048, LAN605, LAN604, TAM8192, TAM8138.