sensors Mode-S transponder

E491C3

ICAO 24-bit transponder address · allocated to Brazil

Currently assigned to PR-GYA · BOEING 737-800

Hex
E491C3
Octal
71110703
Decimal
14,979,523
Country
BR
Tail
PR-GYA
Type
B738
Broadcasting now · callsign GLO7758 · 36,000 ft
Flights observed
11
Distinct callsigns
8
Country
BR
Last broadcast
17h ago

Current position

E491C3 is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address E491C3 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
GLO1964 - 3 2026-04-13
GLO1897 Gol Linhas Aéreas Inteligentes 2 2026-04-13
GLO2060 - 1 2026-04-14
GLO2031 - 1 2026-04-13
GLO1969 Gol Linhas Aéreas Inteligentes 1 2026-04-14
GLO1965 - 1 2026-04-13
GLO1866 - 1 2026-04-13
GLO1692 Gol Linhas Aéreas Inteligentes 1 2026-04-12

Recent flights last 11

DateFlightRouteTakeoffLandingDuration
2026-04-14 GLO2060 - Apr 14, 10:35 UTCApr 14, 10:45 UTC10m
2026-04-14 GLO1969 POA → GRU Apr 14, 07:50 UTCApr 14, 08:55 UTC1h 5m
2026-04-13 GLO1866 - Apr 13, 20:15 UTCApr 13, 21:05 UTC50m
2026-04-13 GLO1965 - Apr 13, 17:05 UTCApr 13, 18:15 UTC1h 10m
2026-04-13 GLO1964 - Apr 13, 12:20 UTCApr 13, 12:35 UTC15m
2026-04-13 GLO1964 - Apr 13, 11:55 UTCApr 13, 12:35 UTC40m
2026-04-13 GLO1964 - Apr 13, 11:40 UTCApr 13, 12:15 UTC35m
2026-04-13 GLO2031 - Apr 13, 09:55 UTCApr 13, 10:10 UTC15m
2026-04-13 GLO1897 SSA → GIG Apr 13, 00:20 UTCApr 13, 00:45 UTC25m
2026-04-12 GLO1897 SSA → GIG Apr 12, 23:55 UTCApr 13, 00:45 UTC50m
2026-04-12 GLO1692 GRU → SSA Apr 12, 18:45 UTCApr 12, 19:40 UTC55m

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

Mode-S E491C3 frequently asked

What is Mode-S code E491C3?
E491C3 is an ICAO 24-bit transponder address. Allocated to Brazil. Assigned to PR-GYA.
Where is Mode-S E491C3 registered?
Mode-S code E491C3 is allocated to Brazil (BR). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is E491C3 broadcasting right now?
Yes. Mode-S E491C3 is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex E491C3, octal 71110703, decimal 14,979,523.
What flights does E491C3 operate?
Mode-S E491C3 has broadcast 8 distinct callsigns, including GLO1964, GLO1897, GLO2060, GLO2031, GLO1969.