sensors Mode-S transponder

E491AF

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PT-XPG · AIRBUS A-321

Hex
E491AF
Octal
71110657
Decimal
14,979,503
Country
BR
Tail
PT-XPG
Type
A321
Broadcasting now · callsign TAM3447 · 5,125 ft
Flights observed
11
Distinct callsigns
8
Country
BR
Last broadcast
14h ago

Current position

E491AF is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address E491AF 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
TAM8104 - 3 2026-04-13
TAM8105 TAM Brazilian Airlines 2 2026-04-13
TAM3638 - 1 2026-04-14
TAM3576 - 1 2026-04-14
TAM3377 - 1 2026-04-12
TAM3269 - 1 2026-04-14
TAM3232 TAM Brazilian Airlines 1 2026-04-13
TAM3229 - 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 TAM3638 - Apr 14, 10:05 UTCApr 14, 10:45 UTC40m
2026-04-14 TAM3269 - Apr 14, 07:50 UTCApr 14, 08:30 UTC40m
2026-04-14 TAM3576 - Apr 14, 05:20 UTCApr 14, 05:30 UTC10m
2026-04-13 TAM8105 SCL → GRU Apr 13, 22:05 UTCApr 13, 23:40 UTC1h 35m
2026-04-13 TAM8105 SCL → GRU Apr 13, 20:45 UTCApr 13, 20:55 UTC10m
2026-04-13 TAM8104 - Apr 13, 16:45 UTCApr 13, 17:35 UTC50m
2026-04-13 TAM8104 - Apr 13, 15:50 UTCApr 13, 17:35 UTC1h 45m
2026-04-13 TAM8104 - Apr 13, 15:15 UTCApr 13, 16:00 UTC45m
2026-04-13 TAM3229 - Apr 13, 08:55 UTCApr 13, 11:55 UTC3h 0m
2026-04-13 TAM3232 GRU → BEL Apr 13, 00:20 UTCApr 13, 00:55 UTC35m
2026-04-12 TAM3377 - Apr 12, 19:50 UTCApr 12, 20:15 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 PT-XPG page for operator, model, and routing details .

Mode-S E491AF frequently asked

What is Mode-S code E491AF?
E491AF is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PT-XPG.
Where is Mode-S E491AF registered?
Mode-S code E491AF is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E491AF broadcasting right now?
Yes. Mode-S E491AF is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E491AF, octal 71110657, decimal 14,979,503.
What flights does E491AF operate?
Mode-S E491AF has broadcast 8 distinct callsigns, including TAM8104, TAM8105, TAM3638, TAM3576, TAM3377.