sensors Mode-S transponder

E491B1

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PT-XPE · AIRBUS A-321

Hex
E491B1
Octal
71110661
Decimal
14,979,505
Country
BR
Tail
PT-XPE
Type
A321
No current signal · last broadcast 12h ago
Flights observed
11
Distinct callsigns
6
Country
BR
Last broadcast
12h ago

Last known position

Most recent position reported by Mode-S E491B1.

Country allocation

The ICAO 24-bit address E491B1 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 6 distinct

Callsign Airline Flights Last seen
TAM3314 TAM Brazilian Airlines 3 2026-04-13
TAM3227 - 3 2026-04-14
TAM3343 - 2 2026-04-13
TAM3790 - 1 2026-04-13
TAM3301 - 1 2026-04-13
TAM3300 TAM Brazilian Airlines 1 2026-04-13

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 TAM3227 - Apr 14, 09:10 UTCApr 14, 10:20 UTC1h 10m
2026-04-14 TAM3227 - Apr 14, 07:40 UTCApr 14, 09:05 UTC1h 25m
2026-04-14 TAM3227 - Apr 14, 06:10 UTCApr 14, 06:50 UTC40m
2026-04-13 TAM3790 - Apr 13, 21:20 UTCApr 13, 23:45 UTC2h 25m
2026-04-13 TAM3343 - Apr 13, 19:45 UTCApr 13, 19:55 UTC10m
2026-04-13 TAM3343 - Apr 13, 18:25 UTCApr 13, 19:55 UTC1h 30m
2026-04-13 TAM3314 CGH → IGU Apr 13, 16:20 UTCApr 13, 16:50 UTC30m
2026-04-13 TAM3314 CGH → IGU Apr 13, 15:50 UTCApr 13, 16:50 UTC1h 0m
2026-04-13 TAM3314 CGH → IGU Apr 13, 15:40 UTCApr 13, 16:10 UTC30m
2026-04-13 TAM3301 - Apr 13, 13:25 UTCApr 13, 14:15 UTC50m
2026-04-13 TAM3300 GRU → FLN Apr 13, 11:30 UTCApr 13, 12:00 UTC30m

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

Mode-S E491B1 frequently asked

What is Mode-S code E491B1?
E491B1 is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PT-XPE.
Where is Mode-S E491B1 registered?
Mode-S code E491B1 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E491B1 broadcasting right now?
No active broadcast right now. Last signal was 12h ago.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E491B1, octal 71110661, decimal 14,979,505.
What flights does E491B1 operate?
Mode-S E491B1 has broadcast 6 distinct callsigns, including TAM3314, TAM3227, TAM3343, TAM3790, TAM3301.